| the larvae of some blowflies of medical and veterinary importance. | diagnostic features are described as a series of couplets that enable separation of the third instar larvae of the following pairs of closely related forms of blowflies of medical and veterinary importance: chrysomya chloropyga (wiedemann) and ch.putoria (wiedemann), chrysomya albiceps (wiedemann) and ch.rufifacies (macquart), cochliomyia hominivorax (coquerel) and co.macellaria (fabricius), lucilia sericata (mergen) and l. cuprina (wiedemann), calliphora augur (fabricius) and c. stygia (fabrici ... | 1987 | 2979525 |
| chrysomya albiceps and c. rufifacies (diptera: calliphoridae): contribution to an ongoing taxonomic problem. | until recently, the two biologically equivalent blow flies chrysomya albiceps (wiedemann) and chrysomya rufifacies (macquart) had disjunct distributions outside the americas; the former was palaearctic, the latter australasian and oriental. the two species are now spreading throughout the americas and coexist in argentina. the predatory "hairy" larvae of both species are difficult to separate, which could result in taxonomic errors. new diagnostic characters are presented to differentiate the th ... | 1993 | 8510128 |
| arthropod succession on exposed rabbit carrion in alexandria, egypt. | in 1988 and 1989, seasonal field studies on exposed rabbit carcasses were conducted in alexandria, egypt, to describe the decomposition process and arthropod succession patterns. four decomposition stages were recognized: fresh, bloated, decay, and dry. carcasses in summer and spring decayed at a much faster rate than those in fall and winter. the bloated stage in summer lasted longer than in spring because of the difference in breeding biology of the primary flies infesting carcasses in these s ... | 1996 | 8699450 |
| diptera and coleoptera of potential forensic importance in southeastern brazil: relative abundance and seasonality. | to determine the species of diptera and coleoptera that visit and breed in carrion, four experiments, one for each season, were conducted from november 1992 to october 1993 in the vicinity of campinas city, southeastern brazil. for each experiment two pigs weighting c. 10 kg were killed with a blow to the head with a blunt metallic object and immediately exposed, one in the shade and the other under sunlight. adult insects and larvae leaving the carcass to pupate were collected daily. in additio ... | 1997 | 9061672 |
| three case studies in forensic entomology from southern italy. | three cases of forensic interest regarding the estimation of postmortem interval (pmi) by entomological data are presented. the three cases concerning criminal investigations were performed in southern italy by the entomological laboratory of the institute of forensic medicine at the university of bari. for each case the authors present a detailed description of the remains as observed at the crime scene and a description of the arthropods collected from the remains. the pmi estimation was based ... | 1998 | 9456548 |
| isolation and activity of strains of bacillus thuringiensis toxic to larvae of the housefly (diptera: muscidae) and tropical blowflies | several natural isolates of bacillus thuringiensis have been found which are active against larvae of musca domestica, the housefly, as well against larvae of the family calliphoridae. the toxicity is attributed to the cry ib class of protoxin. presolubilization of the toxin was not necessary to induce mortality in any of the insect species assayed. the addition of spores to the delta-endotoxin was, however, essential to inducing significant mortality in larvae of chrysomya albiceps (weid.) and ... | 1998 | 9500943 |
| [the synanthropy of the calliphorids (insecta, diptera) of curitiba, paraná, brazil]. | the calliphorids synantropics were studied in three different environments--urban, rural and forest area--in metropolitan region of curitiba, paraná, brazil during october and december of 1996 to estimate the abundance, preferences of the adults to baits (fresh fish, bird liver and human faeces) and the synanthropic index for the most abundant species. a total of 3399 calliphorids of 13 different species were sampled: phaenicia eximia (wiedemann, 1819), phaenicia cuprina (wiedemann, 1818), phaen ... | 1998 | 9697653 |
| a checklist of arthropods associated with pig carrion and human corpses in southeastern brazil. | necrophagous insects, mainly diptera and coleoptera, are attracted to specific stages of carcass decomposition, in a process of faunistic succession. they are very important in estimating the postmortem interval, the time interval between the death and the discovery of the body. in studies done with pig carcasses exposed to natural conditions in an urban forest (santa genebra reservation), located in campinas, state of são paulo, southeastern brazil, 4 out of 36 families of insects collected - c ... | 2000 | 10656720 |
| annual and spatial activity of dung flies and carrion in a mediterranean holm-oak pasture ecosystem. | the annual activity and spatial distribution of muscidae and calliphoridae were investigated in a holm-oak ('dehesa') ecosystem in western spain over two years in pasture and woodland habitats, using wind-orientated traps baited with a mixture of fresh cattle faeces, liver and sodium sulphide solution. lucilia sericata (meigen) was always the dominant species and, with chrysomya albiceps (weidemann), hydrotaea ignava (harris), muscina levida (harris) and muscina prolapsa (harris), was more abund ... | 2000 | 10759313 |
| seasonality of insect succession and pig carcass decomposition in a natural forest area in southeastern brazil. | in this study, successional patterns, relative abundance of larvae and adults of sarcosaprophagous insects, carcass decay, diversity and seasonality of species, and their potential as forensic indicators were studied. four experiments were carried out in each season in a natural area of southeastern brazil. two pigs (sus scrofa l.) were used in each experiment and were exposed to sunlight and shade, respectively. the calliphoridae outnumbered the sarcophagidae in specimens collected and reared f ... | 2001 | 11372997 |
| the utility of mitochondrial dna sequences for the identification of forensically important blowflies (diptera: calliphoridae) in southeastern australia. | the applicability of mitochondrial dna (mtdna) sequencing was investigated for the identification of the following forensically important species of blowflies from southeastern australia: calliphora albifrontalis, c. augur, c. dubia, c. hilli hilli, c. maritima, c. stygia, c. vicina, chrysomya rufifacies, ch. varipes and onesia tibialis. all breed in carrion except o. tibialis, which is an earthworm parasitoid. emphasis was placed on calliphora species because they predominate among the carrion- ... | 2001 | 11457611 |
| determination of drug levels and the effect of diazepam on the growth of necrophagous flies of forensic importance in southeastern brazil. | larvae of chrysomya albiceps (wiedemann) and chrysomya putoria (wiedemann) (diptera: calliphoridae) were reared on tissues from rabbits administered twice the lethal dosage of diazepam in order to study the effects of this drug on the development of these two species. the rabbits were given 50mg of diazepam via ear vein infusion. from 18 to 54h, larvae feeding on tissues containing the drug developed more rapidly than larvae from the control colony for both fly species. the time required for pup ... | 2001 | 11457622 |
| spatio-temporal dynamics and transition from asymptotic equilibrium to bounded oscillations in chrysomya albiceps (diptera, calliphoridae). | the sensitivity of parameters that govern the stability of population size in chrysomya albiceps and describe its spatial dynamics was evaluated in this study. the dynamics was modeled using a density-dependent model of population growth. our simulations show that variation in fecundity and mainly in survival has marked effect on the dynamics and indicates the possibility of transitions from one-point equilibrium to bounded oscillations. c. albiceps exhibits a two-point limit cycle, but the intr ... | 2001 | 11500759 |
| [muscoid dipterans as helminth eggs mechanical vectors at the zoological garden, brazil]. | to assess muscoid dipterae species who are able to carry helminth eggs and larvae and to evaluate the potential contamination of trapped dipterae. | 2002 | 12471387 |
| larval dispersal and predation in experimental populations of chrysomya albiceps and cochliomyia macellaria (diptera: calliphoridae). | in this study we investigated the larval dispersal associated with larval predation in experimental populations of chrysomya albiceps and cochliomyia macellaria. frequency distribution of sampling units (g test) in the substrate was used to evaluate variation in larval dispersal. an experimental acrylic channel (1 x 0.1 x 0.2 m) covered with wood shavings was used to observe larval dispersal prior to pupation. the acrylic channel was graduated at 0.05 m intervals, each representing a sampling un ... | 2003 | 12563480 |
| the blowfly chrysomya albiceps (wiedemann) (diptera: calliphoridae) as a new forensic indicator in central europe. | during the summer months of the year 2001, six forensic cases (one is reported in the present paper), a pig carrion study in the city of vienna (latitude 48 degrees 12'n, longitude 16 degrees 22'e) and several liver-baited traps north of vienna, yielded large numbers of maggots of the blowfly chrysomya albiceps (wiedemann) (diptera: calliphoridae). apart from some records from france, reports of c. albiceps from the palearctic region north of the alps (i.e. north of a latitude of 48 degrees n) h ... | 2003 | 12690503 |
| quantifying the potential pathogens transmission of the blowflies (diptera: calliphoridae). | to quantify the potential capability of transporting and passing infective pathogens of some blowflies (diptera: calliphoridae), mihályi's danger-index was calculated for seven species. the original equation was modified to include synanthropic information to discriminate between asynanthropic, hemisynanthropic, and eusynanthropic status. three groups were recognized, of which phaenicia cluvia and musca domestica proved the flies with lowest index value (d = 2.93 and 3.00 respectively); cochliom ... | 2003 | 12764436 |
| initial study of arthropod succession on pig carrion in a central european urban habitat. | we conducted a carrion succession study within a restricted urban backyard in the city of vienna, austria (16 degrees 22'e, 48 degrees 12'n) from may to november 2001 to analyze sequence and composition of the local carrion visiting fauna. two medium sized clothed domestic pig carcasses (sus scrofa linnaeus), were used as surrogate human models. in total, 42 arthropod species from the families calliphoridae, sarcophagidae, sepsidae, piophilidae, muscidae, fanniidae, sphaeroceridae, phoridae, dro ... | 2004 | 15185958 |
| analysis of a conserved duplicated trna gene in the mitochondrial genome of blowflies. | the mtdna control region (cr) and flanking genes of the blowflies chrysomya albiceps, chrysomya megacephala and chrysomya chloropyga (calliphoridae) were characterized. the most unusual feature found was the presence of duplicated trna sequences corresponding to trni and a portion of trnq. the partially duplicated trnq was very likely a pseudogene since most of the sequence of the typical insect trnq gene was missing. in contrast, the trni gene had a conserved primary sequence following the dupl ... | 2004 | 15363840 |
| estimation of postmortem interval in real cases based on experimentally obtained entomological evidence. | using the entomological evidence obtained in several forensic cases analyzed in our laboratory for comparison, we evaluated the results of an experimental study carried out in a semiurban setting to determine the structure of the sarcosaprophagous fauna from a mediterranean region of se spain. in all, 18 orders of arthropods were collected. the summarized experimental results refer to the most important taxa for estimating the postmortem interval. thus, the seasonal character of certain diptera ... | 2005 | 15734111 |
| postfeeding radial dispersal in larvae of chrysomya albiceps (diptera: calliphoridae): implications for forensic entomology. | blowflies utilize discrete and ephemeral breeding sites for larval nutrition. after the exhaustion of food, larvae begin dispersing in search of sites to pupate or additional food sources, a process referred as postfeeding larval dispersal. some of the most important aspects of this process were investigated in the blowfly chrysomya albiceps, employing a circular arena to allow radial dispersion of larvae from the center. the results showed a positive correlation between burial depth and distanc ... | 2005 | 16216712 |
| diversity of calliphoridae (diptera) in brazil's tinguá biological reserve. | the calliphoridae are flies of great ecological, medical and sanitary importance because they are decomposers of organic matter, mechanical vectors of pathogenic agents, and causers of myiasis. this paper attempts to ascertain the diversity of calliphoridae in the tinguá biological reserve and correlate meteorological data (temperature, relative humidity of the air, and precipitation) with the occurrence of these flies. the study was conducted at a site in the tinguá biological reserve, located ... | 2006 | 16680310 |
| karyotypes, constitutive heterochromatin, and genomic dna values in the blowfly genera chrysomya, lucilia, and protophormia (diptera: calliphoridae). | the karyotypes and c-banding patterns of chrysomya species c. marginalis, c. phaonis, c. pinguis, c. saffranea, c. megacephala (new guinean strain), lucilia sericata, and protophormia terraenovae are described. all species are amphogenic and have similar chromosome complements (2n = 12), including an xy-xx sex-chromosome pair varying in size and morphology between species. additionally, the c-banding pattern of the monogenic species chrysomya albiceps is presented. the dna contents of these and ... | 2006 | 16936838 |
| a checklist of arthropods associated with rat carrion in a montane locality of northern venezuela. | this is the first report of arthropods associated with carrion in venezuela, using laboratory bred rats (rattus norvegicus). rat carcasses were exposed to colonization by arthropods in neighboring montane savanna and cloud forest habitats in the state of miranda. the taxonomic composition of the arthropods varied between both ecosystems. scarabaeidae, silphidae, micropezidae, phoridae, vespidae and one species of ant, were collected only in the cloud forest. dermestes maculatus, chrysomya albice ... | 2008 | 17386987 |
| malignant tumor affects the developmental pattern of feeding larvae of chrysomya albiceps (wiedemann) and chrysomya putoria (wiedemann) (diptera: calliphoridae). | larvae of chrysomya albiceps (wiedemann) and chrysomya putoria (wiedemann) were reared on liver tissues from a rabbit that had a malignant tumor in the thoracic cavity. larval rearing of both blowfly species was conducted at ambient temperature. larvae that fed on tissues from the rabbit with the tumor developed at significantly faster rates than those feeding on tissues from the control animal. | 2007 | 17710335 |
| species composition and seasonal succession of saprophagous calliphorids in a rural area of córdoba: argentina. | during 2004, four experiments were carried out, one each season, in order to determine the species composition and seasonal dynamics of calliphoridae in a rural area of córdoba (argentina). two pigs (sus scrofa l.), weighing approximately 8 kg each, were used in each experiment. they were killed with a blow to the head and immediately placed in a variant of the schoenly et al. (1991) trap. one pig was exposed in the shade and the other one under direct sunlight. the insect fauna was collected da ... | 2007 | 18064353 |
| [parasitoids of muscoids diptera collected at alvorada slaughterhouse in itumbiara, south of goiás, brazil]. | species of parasitoids associated with synanthropic flies were trapped by using chopped bovine liver as bites at slaughterhouse itumbiara in the state of goiás, from march to december 2005. pupae were obtained by removing them from sand, after using liver baits as substract to atract flies. they were individually placed in gelatin capsules until the emergency of the adult flies or their parasitoids. the overall prevalence of parasitism was 15.3%. the frequency, percentage and species of parasito ... | 2007 | 18373902 |
| first report of human myiasis in goiás state, brazil: frequency of different types of myiasis, their various etiological agents, and associated factors. | the objective of this study was to show which species of flies are responsible for human myiasis in the brazilian state of goiás and to determine the frequency of cases. patients at the clinical hospital of the federal university of goiás (ufg) were examined, and any fly larvae found in their wounds were collected for taxonomic identification. first instar larvae were observed using light microscopy; second and third instars were examined using stereoscopy. the following screwworm flies were obs ... | 2009 | 18576696 |
| competitive interaction between larvae of lucilia sericata (meigen) and chrysomya albiceps (wiedemann) (diptera: calliphoridae). | rearing of l. sericata and c. albiceps in pure cultures of a variety of densities, at four constant temperature regimes, demonstrated an inverse relationship between egg density and the total development (f(2,6) = 264.35 and f(2,6) = 71.87 for l. sericata and c. albiceps, respectively p < 0.05), survivorship (f(2,9) = 68.41; p < 0.001 forl. sericata and f(2,9) = 12.35; p < 0.05 for c. albiceps) and adult size (for l. sericata: males f(2,9) = 58.94 and females f(2,9) = 140.09. for c. albiceps: ma ... | 2007 | 19070043 |
| myiasis in domestic animals in israel. | dipteran larvae were collected from wounds of 78 domestic animals. the larvae were identified as follows: wohlfahrtia magnifica, taken from dogs (the majority), goats, sheep, camels, horses and one cat; lucilia sericata, from cats, sheep, one horse, and one dog together with chrysomya albiceps; przhevalskiana silenus from goats and musca domestica from one sheep. the animals were treated with antibiotics, anti-inflammatory agents and insecticides and most animals fully recovered. we believe this ... | 2009 | 19251365 |
| succession pattern of cadaverous entomofauna in a semi-rural area of bogotá, colombia. | the main objective of this work was to examine the succession of insects colonizing three pig (sus scrofa) cadavers in a semi-rural area of bogotá. the 12kg pigs were shot and put into metallic mesh cages to allow access by insects. arthropods were then sampled at different intervals depending on the corresponding stage of decomposition. in total 5981 arthropods were collected during decomposition, 3382 adults and 2599 immature stages, belonging to 10 orders and 27 families. sarconesia magellani ... | 2009 | 19329266 |
| [chrysomya albiceps (wiedemann) (diptera: calliphoridae) developmental rate on artificial diet with animal tissues for forensic purpose]. | forensic entomology uses biological and ecological aspects of necrophagous insects to help in criminal investigations to estimate the post-mortem interval (pmi) or to determine the cause of death. recent papers demonstrated that the presence of toxins in decomposing tissues may alter the insect developmental rate of insects exploiting such tissues as food. thus, preliminary tests with artificial diets in laboratory are necessary to create a database to investigate and quantify the modifications ... | 2009 | 19488508 |
| a preliminary study of insect fauna on pig carcasses located in sugarcane in winter in southeastern brazil. | minimum post-mortem intervals can be estimated based on analyses of the pattern of insect succession on a carcass. in order to successfully apply this approach, insect development rates must be considered with regard to local regional climatic conditions. this study is the first to analyse insect succession on carcasses decomposing in a sugarcane crop in brazil. in all seasons, chrysomya albiceps (wiedemann) (diptera: calliphoridae) and cochliomyia macellaria (fabricius) were frequent visitors d ... | 2009 | 19493195 |
| the influence of temperature on the behavior of burrowing in larvae of the blowflies, chrysomya albiceps and lucilia cuprina, under controlled conditions. | blowflies use discrete, ephemeral substrates for larval development. after exhaustion of the food supply, larvae will disperse in search of sites to burrow and pupate or will seek other sources of food in a process known as post-feeding larval dispersal. in this study, the effect of temperature was investigated as it is one of the most important aspects of the environmental variables in this process. 800 larvae of the blowflies chrysomya albiceps (wiedemann 1819) and lucilia cuprina (wiedemann 1 ... | 2009 | 19613449 |
| [description and key to the main species of calliphoridae (diptera) larvae of forensic importance from colombia]. | larvae of 13 blowfly species from colombia are described and an illustrated key for all them is presented. all larval instars of calliphora nigribasis macquart, cochliomyia macellaria (fabricius), chrysomya albiceps (wiedemann), chrysomya megacephala (fabricius), hemilucilia segmentaria (fabricius), hemilucilia semidiaphana (rondani), lucilia eximia (weidemann) are described, but the second and third instars of compsomyiops verena (walter), and only the third instar of calliphora vicina robineau ... | 2009 | 19618061 |
| the influence of clothing and wrapping on carcass decomposition and arthropod succession during the warmer seasons in central south africa*. | the influence of clothing and wrapping on carcass decomposition and arthropod succession was investigated to provide data to enable estimated postmortem interval in homicide investigations. six pig carcasses, sus scrofa, were divided into three sample groups, each with a clothed carcass wrapped and a carcass wrapped with no clothes. two more carcasses, one with no clothes or wrapping, the other with clothes and no wrapping were used as controls. the clothed or wrapped carcasses had larger visibl ... | 2009 | 19686395 |
| records of chrysomya albiceps in northern italy: an ecological and forensic perspective. | knowledge of the carrion-breeding insects present at a local level is important and necessary for defining the post-mortem interval. climate changes and globalisation are affecting species ranges and population dynamics. in this note, we report the incidence of chrysomya albiceps (diptera: calliphoridae) on dead human bodies and carrion in northern italy. these data confirm the spread of this species in the northern regions. the partial sequencing of a 583-bp region of the cytochrome oxidase sub ... | 2009 | 19722075 |
| [dipterans of forensic interest in two vegetation profiles of cerrado in uberlândia, state of minas gerais, brazil]. | carrion breeding insects may be of great utility in crimes briefing. studies on forensic entomology are restricted to few localities in brazil and very few of them were done in the cerrado vegetation (a type of savannah) until now. this work aimed to survey the main species of dipterans associated with the decomposition process of sus scrofa and the insect succession pattern in carcasses in the cerrado. the study was carried out in the dry and humid season of the year, in two cerrado vegetation ... | 2009 | 20098935 |
| insects (diptera) associated with cadavers at the institute of legal medicine in pernambuco, brazil: implications for forensic entomology. | increasing rates of unsolved homicides in brazil prompt the need for applied entomological data to be used as a complementary tool by criminal investigators. in that context, we analyzed the occurrence of forensically important insect species (order diptera) on 14 cadavers taken into the institute of legal medicine (ilm), in pernambuco, brazil, according to the conditions of the body and the pattern of colonisation by insects. simultaneously, we surveyed the diversity of insects in the surroundi ... | 2010 | 20181449 |
| determination of calliphoridae (diptera) fauna and seasonal distribution on carrion in ankara province. | this study was conducted from march 2006 to 2007. the aim of the study was to determine the forensically significant calliphoridae (diptera) species and their seasonal distribution in ankara province at beytepe campus. pig carcasses were killed by a veterinary using pentobarbital sodium with intervals from 2 to 3 weeks to a month. samples were collected from the carcass everyday in the morning, in the afternoon, and at sunset. temperature and parameters of weather, such as cloudy, sunny, rainy, ... | 2010 | 20345774 |
| a checklist of calliphoridae blowflies (insecta, diptera) associated with a pig carrion in central brazil. | although the cerrado is the second major brazilian biome, few studies have been undertaken about its entomofauna. blowflies have an important role in forensic entomology, helping in the determination of postmortem intervals. the main goal of this exploratory study was to identify and to catalog the blowfly species associated with a pig carcass. the study was conducted in a pasture in brasília, distrito federal. a pig (sus scrofa) was killed with a .22 caliber shot in the frontal region of the he ... | 2010 | 20666916 |
| forensic entomology in kuwait: the first case report. | to date, entomology has not been used in legal investigations in kuwait. indeed, this is true of most arab countries in the middle east. there are no known studies on necrophagous species in the region, nor any knowledge of cadaver succession with which to compare case material. here we report the first case of application of forensic entomology in kuwait. in al-rowdah district, a man was found dead in his bedroom which was air-conditioned and the windows were closed. the temperature of the room ... | 2011 | 20705405 |
| a preliminary investigation of insect colonization and succession on remains of rabbits treated with an organophosphate insecticide in el-qalyubiya governorate of egypt. | a preliminary field study in the summer in a rural village in el-qalyubiya governorate (egypt) compared the necrophagous insects colonizing the cadavers of two male rabbits (oryctolagus cunicullus domesticus l.) killed by asphyxia (control), with two poisoned by the organophosphate (op) pesticide pirimiphos-methyl (test). decay of control carcasses was rapid since they reached the skeletal stage in only 19 days. test carcasses did not decay completely, even 40 days post-killing. insect species c ... | 2010 | 21130587 |
| effect of nandrolone decanoate on the development of three species of chrysomya (diptera:calliphoridae), flies of forensic importance in brazil. | necrophagous insects are valuable tools for postmortem interval (pmi) estimation or for determining the cause of death. due to the increase in deaths related to drug abuse, it is crucial to know how these substances affect the development of flies that feed on corpses, to avoid errors in the pmi estimates. this study evaluated the effect of nandrolone decanoate, an anabolic androgenic steroid, on the development ofimmatures of chrysomya megacephala (f.), chrysomya putoria (wiedemann), and chryso ... | 2011 | 21337956 |
| [predator behavior of chrysomya albiceps (fabricius) (diptera:calliphoridae) on human corpses]. | objective: this study was conducted to determine the effect of predator behavior of c. albiceps larvae on cadavers, against other species larvae, on the estimation of the time of death. methods: 30-60 pieces of larvae with different height and look are collected from each of five cadavers in which there are c. albiceps larvae. after height measurement of the entomologic evidences were collected from the cadaver, the determination at family level was made. results: chrysomya albiceps (fabricius) ... | 2011 | 21776597 |
| survival of submerged blowfly species and their parasitoids: implications for postmortem submersion interval. | pupal survival of three blowfly species, chrysomya albiceps, chrysomya megacephala, and chrysomya putoria (diptera: calliphoridae) and the parasitoid species nasonia vitripennis (hymenoptera: pteromalidae) was studied after the pupae were experimentally submerged in water. non-parasitized pupae at different developmental stages, 0, 24, 48, and 72h, and parasitized pupae after 3, 8, 10, and 12 days of development were submerged for 6, 24, 48, or 72h. control groups for each pupal developmental st ... | 2011 | 21723056 |
| epidemiological study of myiases in the hospital do andara+¡, rio de janeiro, including reference to an exotic etiological agent. | myiases are infestations with dipteran larvae in both necrosed and living tissues, the food source of these insects. these illnesses occur in warm humid climates, and are most frequent in developing countries. we assessed the epidemiological aspects and the influence of climate on the occurrence of myiases and the bioagents in patients admitted to the federal hospital do andara+¡ in rio de janeiro from february 2007 to 2008. the influence of abiotic factors (temperature, humidity, and rainfall) ... | 2011 | 21710036 |
| Seasonal structure and dynamics of sarcosaprophagous fauna on pig carrion in a rural area of Cordoba (Argentina): Their importance in forensic science. | Four experiments, one in each season, were carried out during 2004 in a rural area of Córdoba, central Argentina. Two pigs (Sus scrofa L.), weighing approximately 8kg each, were used in each of the four experiments. The animals were killed by a sharp blow to the head and immediately placed in an appropriate arthropod trap. One pig was placed in the shade and the other under direct sunlight. This research was conducted to determine the seasonal structure and dynamics of arthropods that constitute ... | 2011 | 22138029 |
| selection and validation of reference genes for functional studies in the calliphoridae family. | the genera cochliomyia and chrysomya contain both obligate and saprophagous flies, which allows the comparison of different feeding habits between closely related species. among the different strategies for comparing these habits is the use of qpcr to investigate the expression levels of candidate genes involved in feeding behavior. to ensure an accurate measure of the levels of gene expression, it is necessary to normalize the amount of the target gene with the amount of a reference gene having ... | 2014 | 25373149 |
| detection and preliminary physico-chemical properties of antimicrobial components in the native excretions/secretions of three species of chrysomya (diptera, calliphoridae) in brazil. | antibiotic-resistant bacteria in hospitals and communities increasingly threaten public health in brazil and the rest of the world. there is an urgent need for additional antimicrobial drugs. calliphorid blowfly larvae are a rich source of antimicrobial factors but the potential of neotropical species has been neglected. this preliminary study evaluates the antimicrobial activity of the native excretions/secretions of larvae of three species of brazilian calliphorids, chrysomya megacephala, chry ... | 2015 | 25817237 |
| scavenger deterrent factor (sdf) from symbiotic bacteria of entomopathogenic nematodes. | entomopathogenic nematodes (epns) in the genera steinernema and heterorhabditis are symbiotically associated with bacteria in the genera xenorhabdus and photorhabdus, respectively. the symbiotic bacteria produce a chemical compound(s) that deterred ants from feeding on nematode-killed insects (i.e., cadavers) and has been previously referred to as an ant deterrent factor (adf). we studied the response of different arthropod scavenger species which included the ant lepisiota frauenfeldi, cricket ... | 2012 | 22446508 |
| human autosomal dna and x chromosome str profiles obtained from chrysomya albiceps (diptera: calliphoridae) larvae used as a biological trace. | the use of insects to answer questions in criminal investigations, as well as a combination of forensic genetic techniques to obtain human dna from the organisms, especially necrophagous dipterians, have gained ground in recent decades among researchers and professionals in this area. the objective of our study was to evaluate and compare two methods of human dna extraction, commonly used for forensic samples, to obtain human autosomal dna and x chromosome short tandem repeat profiles from the d ... | 2016 | 27819737 |
| rates of development of immatures of three species of chrysomya (diptera: calliphoridae) reared in different types of animal tissues: implications for estimating the postmortem interval. | blowflies have major medical and sanitary importance because they can be vectors of viruses, bacteria, and helminths and are also causative agents of myiasis. also, these flies, especially those belonging to the genus chrysomya, are among the first insects to arrive at carcasses and are therefore valuable in providing data for the estimation of the minimum postmortem interval (pmimin). the pmimin can be calculated by assessing the weight, length, or development stage of blowfly larvae. lack of i ... | 2014 | 25082014 |
| how photoperiods affect the immature development of forensically important blowfly species chrysomya albiceps (calliphoridae). | the purpose of this study was to verify the influence of different photoperiods on larval body weight, post-embryonic development, and viability of chrysomya albiceps. the bioassays were performed in acclimatized chamber at 27 ± 1 °c and 60 ± 10 % relative humidity regulated by three different light and dark cycles for a period of 24 h-12:12, 24:00, and 00:24. four replications with 50 newly hatched larvae each were used per photoperiod. the larvae were placed in container containing bovine grou ... | 2012 | 22581345 |
| species abundance and identification of forensically important flies of saudi arabia by dna barcoding. | because they may demonstrate characteristics of the environment where a body has been laying prior to the discovery, flies are insects of forensic interest. we investigated the fly abundance and the effect of location in kingdom of saudi arabia on fly species diversity that attack decomposing human and animal remains. using baited traps deployed in each location, we collected 3,697 flies of seven species belonging to three families. chrysomya albiceps wiedmann represented 60.86% of the collected ... | 2017 | 28399228 |
| diversity of sarcosaprophagous calyptratae (diptera) on sandy beaches exposed to increasing levels of urbanization in brazil. | sandy beaches are among the most impacted ecosystems worldwide, and the effects of urbanization on the biodiversity of these habitats are largely unknown, particularly in brazil. we investigated the composition and structure of assemblages of sarcosaprophagous insects (diptera: calliphoridae, sarcophagidae, and muscidae) on six sandy beaches exposed to differential levels of human impact in pernambuco state, brazil. in total, 20,672 adults of 40 species were collected, of which 70% were callipho ... | 2017 | 28369231 |
| [coii "long fragment" reliability in characterisation and classification of forensically important flies]. | molecular identification of collected flies is important in forensic entomological analysis guided with accurate evaluation of the chosen genetic marker. the selected mitochondrial dna segments can be used to properly identify species. the aim of the present study was to determine the reliability of the 635-bp-long cytochrome oxidase ii gene (coii) in identification of forensically important flies. | 2017 | 28144930 |
| the blowflies of the madeira archipelago: species diversity, distribution and identification (diptera, calliphoridaes. l.). | knowledge on the taxonomic diversity and distribution of blowflies from the madeira archipelago is updated. new and interesting findings are reported for poorly studied islands and islets of this archipelago, together with a brief analysis of the diversity of macaronesian calliphoridae s. l. seven blowfly species were collected during this study, including the first records of calliphora vicina robineau-desvoidy, 1830, chrysomya albiceps (wiedemann, 1819), lucilia sericata (meigen, 1826), pollen ... | 2016 | 27917052 |
| a preliminary study of insect succession in al-ahsaa oasis, in the eastern region of the kingdom of saudi arabia. | rabbit carcass decomposition was examined in four seasons in al-ahsaa oasis. decomposition rate was significantly faster in summer compared with other seasons. fourteen insect species from four orders and seven families were recorded: calliphoridae, muscidae, sarcophagidae, formicidae, histeridae, dermestidae, and tenebrionidae. most of the fly maggots collected were calliphoridae with only one species from both muscidae and sarcophagidae. maggots of calliphora vicina (r.-d.) and chrysomya albic ... | 2017 | 27861898 |
| attraction and oviposition of lucilia eximia (diptera: calliphoridae) to resources colonized by the invasive competitor chrysomya albiceps (diptera: calliphoridae). | the present study aimed to determine if the presence of immatures of the invasive blow fly species chrysomya albiceps (wiedemann) influences the adult behavior of the native species lucilia eximia (wiedemann) in brazil. the level of attraction and oviposition by the native species was assessed in a dual-choice assay. the evaluation was based on sex and stage of ovarian development of l. eximia adults to a resource not colonized (ncr) or colonized (rpc) with eggs, different instars, or densities ... | 2017 | 27744362 |
| first report of necrophagous insects on human corpses in riyadh, saudi arabia. | necrophagous species of insects provide useful complementary data to estimate the postmortem interval in forensic cases. here, for the first time, we report on insect specimens collected from human corpses in riyadh, kingdom of saudi arabia. during the study, 14 beetle larvae were collected from the outdoor corpse (case report one) and five flies and seven beetles were collected from the indoor corpse (case report two). sequencing was performed to study the mitochondrial dna (mtdna) as the prosp ... | 2016 | 27452291 |
| diptera of medico-legal importance associated with pig carrion in a tropical dry forest. | the diversity of necrophagous diptera is largely unknown in seasonally dry tropical forests, despite their medical, veterinary, and forensic relevance. we performed a study in the dry caatinga forest exclusive to brazil in order to assess the diversity and temporal pattern of diptera species using pig carcasses as substrates. adults were collected daily until complete skeletonization. we collected 17,142 adults from 18 families, 10 of which comprise species with known necrophagous habits. the mo ... | 2016 | 27330102 |
| assessment of the abundance and diversity of calliphoridae and sarcophagidae (diptera) in sites with different degrees of human impact in the iberá wetlands (argentina). | the aim of the present study was to explore the diversity and describe the spatial distribution of calliphoridae and sarcophagidae along an urbanization gradient in the iberá wetlands. the flies were collected at 18 sampling points, three per site. in total, 3,318 flies were collected (3,077 blow flies and 241 flesh flies), distributed in 13 genera and 33 species. calliphoridae was the most abundant, comprised 92.74% of all adult flies. chrysomya albiceps (wiedemann), cochliomyia macellaria (f.) ... | 2016 | 27106933 |
| canine myiasis and its causal agents in northeastern iran. | myiasis is defined as the infestation of live human and vertebrate animals with dipterous larvae for a certain period. there are reports indicating that dogs are the most common species affected by myiasis. this study was conducted to identify myiasis-causing flies in owned and stray dogs in mashhad (northeastern iran). | 2017 | 27095974 |
| postmortem attraction of sarcosaprophagous diptera to tramadol-treated rats and morphometric aspects of the developed larvae. | the presence of some specific drugs in animal tissues may affect the time of minimal postmortem intervals estimated during forensic entomological investigations. to test the effects of a specific drug on decomposition, a field study was conducted at fayoum university campus, egypt, from march to may 2013, using tramadol, a synthetic analgesic opioid used to treat moderate to severe pain in humans. albino rats were used as the animal model during this study. the duration of the fresh stage of tra ... | 2016 | 26931613 |
| intraguild predation influences oviposition behavior of blow flies (diptera: calliphoridae). | the objective of the present study was to determine whether blow flies (diptera: calliphoridae) are able to identify larvae of an intraguild predator species in the substrate and avoid laying eggs there. blow flies oviposited in traps with different treatments: substrate only and substrate with larvae of chrysomya albiceps (wiedemann, 1819), chrysomya megacephala (fabricius, 1794), or chrysomya putoria (wiedemann, 1830). ch. megacephala, ch. putoria, and lucilia eximia (wiedemann, 1819) avoided ... | 2016 | 26888288 |
| the biology and ecology of necrodes littoralis, a species of forensic interest in europe. | necrodes littoralis (linnaeus, 1758) (coleoptera: silphidae), also known as the "shore sexton beetle," is a common silphid beetle that visits and breeds on large vertebrate cadavers. this study describes, for the first time, the involvement of n. littoralis on human corpses based on a large dataset of 154 french forensic cases. various parameters regarding corpse location, decomposition stages, and entomofauna were extracted from each file. compared to all of the forensic entomology cases analyz ... | 2016 | 26762393 |
| effect of bait decomposition on the attractiveness to species of diptera of veterinary and forensic importance in a rainforest fragment in brazil. | insects associated with carrion can have parasitological importance as vectors of several pathogens and causal agents of myiasis to men and to domestic and wild animals. we tested the attractiveness of animal baits (chicken liver) at different stages of decomposition to necrophagous species of diptera (calliphoridae, fanniidae, muscidae, phoridae and sarcophagidae) in a rainforest fragment in brazil. five types of bait were used: fresh and decomposed at room temperature (26 °c) for 24, 48, 72 an ... | 2016 | 26547564 |
| dynamics of necrophagous insect and tissue bacteria for postmortem interval estimation during the warm season in romania. | the estimation of postmortem interval (pmi) is affected by several factors including the cause of death, the place where the body lay after death, and the weather conditions during decomposition. given the climatic differences among biogeographic locations, the understanding of necrophagous insect species biology and ecology is required when estimating pmi. the current experimental model was developed in romania during the warm season in an outdoor location. the aim of the study was to identify ... | 2016 | 26487246 |
| survey of the genetic diversity of forensically important chrysomya (diptera: calliphoridae) from egypt. | minimum postmortem interval estimations of a corpse using blow fly larvae in medicolegal investigations require correct identification and the application of appropriate developmental data of the identified fly species. species identification of forensically relevant blow flies could be very difficult and time consuming when specimens are damaged or in the event of morphologically indistinguishable immature stages, which are most common at crime scenes. in response to this, an alternative, accur ... | 2015 | 26334805 |
| insect colonization and succession on rabbit carcasses in southwestern mountains of the kingdom of saudi arabia. | this study describes for the first time the necrophagous insects attracted to carcasses of the european rabbit in the mountains of al-baha province of southwestern kingdom of saudi arabia (ksa). twenty-four rabbit carcasses were exposed in 2010 during spring (march, april, and may), summer (june, july, and august), and autumn (september, october, and november). the calliphorid fly species, calliphora vicina robineau-desvoidy, chrysomya marginalis (wiedemann), chrysomya chloropyga (wiedemann), ch ... | 2014 | 26309303 |
| distribution and abundance of necrophagous flies (diptera: calliphoridae and sarcophagidae) in maranhão, northeastern brazil. | this study aimed at surveying the local calliphorid and sarcophagid species in maranhão state (brazil) to determine their distribution and abundance, as well as the distribution of exotic chrysomya species. in total, 18,128 calliphorid specimens were collected, distributed in 7 genera and 14 species. the species hemilucilia semidiaphana (rondani, 1850) and paralucilia paraensis (mello, 1969) were new state records. chrysomya albiceps (wiedemann, 1819) and cochliomyia macellaria (f., 1775) were t ... | 2015 | 26078304 |
| synanthropy and temporal variability of calliphoridae living in cosenza (calabria, southern italy). | the aim of this study was to investigate the synanthropy of diptera: calliphoridae, insects of forensic importance, in calabria (southern italy). the study lasted 2 years, from february 2010 to january 2012, and was carried out in three areas of cosenza province representing "urban", "rural", and "wild" environments. bottle traps baited with pork were used to catch calliphoridae. six species were identified, calliphora vicina robineau-desvoidy 1830, calliphora vomitoria (l.), chrysomya albiceps ... | 2014 | 25527571 |
| the potential uses of sarcosaprophagous flesh flies and blowflies for the evaluation of the regeneration and conservation of forest clearings: a case study in the amazon forest. | the level of association between dipterans of the families calliphoridae and sarcophagidae and habitats with different levels of vegetation cover was analyzed at porto urucu in coari, amazonas, brazil, with the aim of identifying the potential of these taxa as bioindicators for the assessment of forest regeneration and conservation. the flies were collected in 16 sample areas, 12 of which were clearings at different stages of regeneration (c1--early regeneration; c2--moderate regeneration; and c ... | 2014 | 25502027 |
| forensic use of a subtropical blowfly: the first case indicating minimum postmortem interval (mpmi) in southern brazil and first record of sarconesia chlorogaster from a human corpse. | southern brazil is unique due to its subtropical climate. here, we report on the first forensic entomology case and the first record of sarconesia chlorogaster (wiedemann) in a human corpse in this region. flies' samples were collected from a body indoors at 20°c. four species were found, but only chrysomya albiceps (wiedemann) and s. chlorogaster were used to estimate the minimum postmortem interval (mpmi). the mpmi was calculated using accumulated degree hour (adh) and developmental time. the ... | 2015 | 25425207 |
| forensic entomology and the estimation of the minimum time since death in indoor cases. | eight cases that occurred indoors in which the insects played an important role in the mpmi estimation are presented. the bodies of socially isolated people and old people living alone were discovered in central italy between june and november. mpmi ranged from a few days to several weeks. insects were collected during the body recovery and the postmortem. climatic data were obtained from the closest meteorological stations and from measurements performed on the site. sarcophagidae and calliphor ... | 2015 | 25400228 |
| phenotypic polymorphism of chrysomya albiceps (wiedemann) (diptera: calliphoridae) may lead to species misidentification. | species identification is an essential step in the progress and completion of work in several areas of biological knowledge, but it is not a simple process. due to the close phylogenetic relationship of certain species, morphological characters are not always sufficiently distinguishable. as a result, it is necessary to combine several methods of analysis that contribute to a distinct categorization of taxa. this study aimed to raise diagnostic characters, both morphological and molecular, for t ... | 2015 | 25265317 |
| an initial study of insect succession on decomposing rabbit carrions in harare, zimbabwe. | to investigate insects visiting sun exposed and shaded decomposing rabbit carcasses and to establish the relationship between insects and carcasses which may be of forensic importance in harare. | 2014 | 25183277 |
| blowflies (diptera, calliphoridae) associated with pig carcasses in a caatinga area, northeastern brazil. | studies that focused on calliphoridae associated with pig carcasses are abundant in southern and southeastern brazil; however, there are few in northeast. here, we present an inventory of the blowfly species associated with the stages of decomposition of pig carcasses in a caatinga area during dry and rainy seasons. the study took place at the private reserve for the environmental inheritance "fazenda almas," state of paraíba, brazil. using a modified version of the shannon trap, 32,909 adult sp ... | 2014 | 27193518 |
| developmental rates of immatures of three chrysomya species (diptera: calliphoridae) under the effect of methylphenidate hydrochloride, phenobarbital, and methylphenidate hydrochloride associated with phenobarbital. | entomotoxicology is focused on obtaining data on necrophagous entomofauna, for criminal investigations purposes. this study aimed to evaluate the effect of different concentrations of methylphenidate hydrochloride, phenobarbital, and their association on the developmental rate, larval and pupal survivorship, and the interval of emergence of adults of chrysomya albiceps (wiedemann), chrysomya megacephala (fabricius), and chrysomya putoria (wiedemann) (diptera: calliphoridae). considering the ther ... | 2014 | 24633905 |
| effect of lunar phases, tides, and wind speed on the abundance of diptera calliphoridae in a mangrove swamp. | abiotic factors, such as lunar phases and tides, have a significant effect on insect development. reproduction and immature development are usually interlinked to these abiotic factors. the tide is at its highest levels at full moon or new moon, hindering the feeding of the immature or causing their drowning. the oviposition by adult females is also compromised on these days because much of the available food is submerged. another important abiotic factor is the wind, which displaces odoriferous ... | 2014 | 27193403 |
| multiple colonization of a cadaver by insects in an indoor environment: first record of fannia trimaculata (diptera: fanniidae) and peckia (peckia) chrysostoma (sarcophagidae) as colonizers of a human corpse. | we describe here a case of multiple colonization of a male cadaver found indoors in the municipality of jaboatao dos guararapes, brazil. the body was colonized by six species of diptera: chrysomya albiceps, chrysomya megacephala, chrysomya putoria (calliphoridae), megaselia scalaris (phoridae), fannia trimaculata (fanniidae), and peckia (peckia) chrysostoma (sarcophagidae). the most abundant species were c. albiceps (65.0 % of all emerged adults) and c. megacephala (18.6 %). the case illustrates ... | 2014 | 24218014 |
| first record of chrysomya albiceps wiedemann, 1819 (diptera: calliphoridae) maggots from a sambar deer (rusa unicolor) in kerala, south india. | fully grown third stage larvae (liii) of chrysomya albiceps were recovered from aberrant sites viz. trachea and rumen during necropsy of a free-range sambar deer that had been observed to bear an inflamed tongue infested with maggots and subsequently died due to starvation. five dead maggots of c. bezziana were also recovered from rumen. the aberrant locations of the recovery of the maggots indicated that they might have reached these sites accidentally. this is the first report of liii of c. al ... | 2012 | 24082544 |
| development of chrysomya albiceps (wiedemann) (diptera: calliphoridae) in different pig tissues. | chrysomya albiceps (wiedemann) has been encountered breeding in animal carcasses and human bodies in many geographical regions. this species is considered an important postmortem indicator for medical legal forensic entomology. studies have also demonstrated its capacity to develop in various natural and semi-synthetic substrates. the present study was undertaken to examine the development of immature c. albiceps in four different pig tissues. eggs of this fly were deposited in flasks containing ... | 2013 | 23949864 |
| insects breeding in pig carrion in two environments of a rural area of the state of minas gerais, brazil. | the main objective of this study was to identify potential forensic indicators in the insect fauna associated with pig carrion and the pattern of insect succession during the decomposition process in two environments of a rural area in uberlândia, state of minas gerais, brazil. the study was conducted at two locations: in a pasture and in a fragment of a semi-deciduous forest (vegetation profile of the cerrado biome) in two different seasons (rainy and dry) of 2010. the decomposition process was ... | 2013 | 23949758 |
| syritta pipiens (diptera: syrphidae), a new species associated with human cadavers. | the analyses of necrophagous insects feeding on a corpse can be successfully used to estimate the minimum time since death. a minimum time frame is sometimes an underestimate, but it is actually the only method that can provide such information when decomposed remains are found at a crime scene. many insects are known to be colonisers of a corpse, but because there is an endless spectrum of crime scene environments, the development data bases for necrophagous insects is incomplete. the two cases ... | 2013 | 23806343 |
| applicability of partial characterization of cytochrome oxidase i in identification of forensically important flies (diptera) from china and egypt. | precise species identification of every insect sample collected from criminal scenes play an essential role in the accurate estimation of postmortem interval. the morphological similarity poses a great challenge for forensic entomologists. dna-based method can be used as a supplemental means of morphological method. in the present study, we demonstrate the applicability of the 304-bp cytochrome oxidase i gene fragment in molecular identification of forensically important diptera. we analyzed 75 ... | 2013 | 23661266 |
| cytochrome b as a useful tool for the identification of blowflies of forensic interest (diptera, calliphoridae). | in forensic entomology the fast and accurate identification of insects collected at the scene of events is essential if errors are to be avoided in estimating infestation times of interest and determining the post-mortem interval (pmi). traditional identification based on morphological characteristics can be complicated due to physical similarities between different species, especially at immature stages. genetic analysis provides a fast and reliable identification method. in this paper, molecul ... | 2013 | 23597749 |
| spatio-temporal dynamics and preference for type of bait in necrophagous insects, particularly native and introduced blow flies (diptera: calliphoridae). | we carried out a year-long survey of insects, using carrion-baited traps in the municipality of campinas and five surrounding municipalities with different urbanization profiles, in southeastern brazil. we studied the spatio-temporal variability and preferences for type of bait of three blow fly species that are forensically important in brazil: chrysomya albiceps (wiedemann), chrysomya megacephala (f.), and lucilia eximia (wiedemann). all three species preferred chicken. c. albiceps and l. exim ... | 2013 | 23540131 |
| an update of the blow flies (diptera: calliphoridae) of the galápagos islands, and first record of chrysomya rufifacies (macquart) from mainland ecuador. | seven species of calliphoridae are reported from the galápagos islands, ecuador: lucilia pionia (walker), l. setosa (james), l. deceptor (curran), l. eximia (wiedemann), cochliomyia macellaria (fabricius), chrysomya albiceps (wiedemann), and chrysomya megacephala (fabricius). lucilia eximia is newly recorded from the islands. lucilia sp. near pionia is recorded from the island of española. the distribution and collection records of these species are discussed and listed, and a key to their ident ... | 2013 | 25113695 |
| [geometric wing morphometrics for chrysomya albiceps and c. megacephala identification (diptera: calliphoridae) from venezuela]. | calliphoridae is one of the families with the greatest number of species with forensic importance, which immature stages feed and develop on decaying material. in venezuela, there are few studies on this taxon reporting the dominance of chrysomya over other carrion flies. the goal of this study was to analyze the variations on wing morphometrics, to support the identification of two forensic flies. for this we photographed a total of 168 wings from c. albiceps (n=111) and c. megacephala (n=57). ... | 2012 | 23025095 |
| morphology and identification of first instars of the european and mediterranean blowflies of forensic importance. part i: chrysomyinae. | light microscopy photographs, line illustrations and scanning electron micrographs are provided for first instars of chrysomya albiceps (wiedemann), chrysomya megacephala (fabricius) and protophormia terraenovae (robineau-desvoidy) (all: diptera: calliphoridae). the following morphological structures are documented: pseudocephalon; antennal complex; maxillary palpus; facial mask; thoracic and abdominal spinulation; spiracular field; posterior spiracles, and cephaloskeleton. new diagnostic featur ... | 2013 | 22827166 |
| sarcosaprophagous diptera assemblages in natural habitats in central spain: spatial and seasonal changes in composition. | the composition and spatial distribution of sarcosaprophagous diptera assemblages were studied using carrion-baited traps along a bioclimatic gradient of natural habitats in central spain throughout the different seasons during 1 year. calliphoridae and muscidae were the most abundant families, accounting for, respectively, 41.9% and 35.1% of all diptera specimens collected. other abundant families were heleomyzidae (8.4%), sarcophagidae (6.9%) and piophilidae (5.1%). fly assemblage compositions ... | 2013 | 22774926 |
| carrion flies of forensic interest: a study of seasonal community composition and succession in lisbon, portugal. | information on diptera community, seasonality and successional patterns in every geographical region is fundamental for the use of flies as forensic indicators of time of death. in order to obtain these data from the lisbon area (portugal), experiments were conducted during the four seasons of the year, using piglet carcasses as animal models. five stages were recognized during the decomposition process. the stages, besides visually defined, could be separated taking into account the occurrence ... | 2012 | 22765479 |
| diversity and synanthropy of calliphoridae (diptera) in the region of rio claro, sp, brazil. | dipteran blowflies (calliphoridae) are of great medical and hygienic importance as vectors of pathogens and as parasites of living and dead tissue, and their association with carrion allows their use in forensic entomology. the objective of this study was to determine the synanthropic index of adult calliphoridae (diptera) collected in rio claro, são paulo. sampling occurred between september 2009 and august 2010. traps baited with sardines, beef liver, and minced meat were assessed for five con ... | 2012 | 23950050 |
| the effect of cocaine on the development rate of immatures and adults of chrysomya albiceps and chrysomya putoria (diptera: calliphoridae) and its importance to postmortem interval estimate. | this study aimed to determine the effect of cocaine on the development and growth of immature and adult blowflies, in an attempt to better understand the impacts of such effects on postmortem interval (pmi) estimation. twice the lethal dose of cocaine was injected into rabbits. the control animals were injected only with saline solution. experimental and control rabbits were autopsied, and portions of their livers were exposed to newly eclosed larvae of chrysomya putoria and chrysomya albiceps. ... | 2012 | 22341241 |
| succession of carrion fauna in the arid region of san juan province, argentina and its forensic relevance. | the succession of carrion fauna and the decomposition stages were studied in the arid environment of san juan province, argentina (31°32'34.7″ s; 68°34'39.4″ w). two pig carcasses (sus scrofa) were placed in wire mesh cages, 100 m apart from each other. each carcass was surrounded by pitfall traps, and a modified malaise trap was placed above. daily samplings were carried out to collect the insects present in the carcasses and the traps, and body and environmental temperature were measured. the ... | 2012 | 23950006 |
| environmental conditions influence allometric patterns in the blow fly, chrysomya albiceps. | the objective of this research was to study variations in allometry of body characters in females and males of two populations of blow flies, chrysomya albiceps (wiedemann) (diptera: calliphoridae), under different environmental conditions to establish patterns of morphological variation. body size of both males and females in the experimental population was significantly higher than in the individuals of the natural population, indicating an important influence of food on body size. all genital ... | 2011 | 22224467 |
| spread and habitat selection of chrysomya albiceps (wiedemann) (diptera calliphoridae) in northern italy: forensic implications. | habitat selection exploited by chrysomya albiceps during its initial spread in northern italy was analyzed in relation to landscape structure. the results of two short studies and a case report are here discussed. c. albiceps was not found on experimental pig carcasses in the urban area of pavia. it was missing in the woody mountains surrounding lecco, but it was found in the same area, at a lower altitude, within the typical "urban sprawl" landscape. it was then recorded in a natural reserve, a ... | 2012 | 22211800 |
| population dynamics, life stage and ecological modeling in chrysomya albiceps (wiedemann) (diptera: calliphoridae). | in this study we investigated the population dynamics of chrysomya albiceps (wiedemann) with laboratory experiments, employing survival analysis and stage structure mathematical models, emphasizing survival among life stages. the study also assessed the theoretical influence of density dependence and cannibalism during immature stages, on the population dynamics of the species. the survival curves were similar, indicating that populations of c. albiceps exhibit the same pattern of survival among ... | 2011 | 21584398 |