| cholangiocarcinoma in a margay (felis wiedii). | | 1977 | 199979 |
| urethral incarceration and colonic obstruction caused by vaginal leiomyoma in a margay. | | 1986 | 3505987 |
| delayed hypersensitivity test with paracoccidioidin in captive latin american wild mammals. | the aim of this investigation was to study epidemiological aspects of paracoccidioidomycosis, the main endemic systemic mycosis in brazil. this study was carried out using the paracoccidioidin delayed hypersensitivity test in 96 latin american wild mammals, including 49 arboreal animals (primates): 33 cebus apella (weeping-capuchin), 16 callithrix jacchus (marmoset); and 47 terrestrial animals (carnivora): 37 nasua nasua (coatimundi), and 10 felidae [panthera onca (jaguar), felis paradalis (ocel ... | 1995 | 7650577 |
| phylogenetic reconstruction of south american felids defined by protein electrophoresis. | phylogenetic associations among six closely related south american felid species were defined by changes in protein-encoding gene loci. we analyzed proteins isolated from skin fibroblasts using two-dimensional electrophoresis and allozymes extracted from blood cells. genotypes were determined for multiple individuals of ocelot, margay, tigrina, geoffroy's cat, kodkod, and pampas cat at 548 loci resolved by two-dimensional electrophoresis and 44 allozyme loci. phenograms were constructed using th ... | 1994 | 7932791 |
| epidemiological study of sporotrichosis and histoplasmosis in captive latin american wild mammals, são paulo, brazil. | sporotrichosis and histoplasmosis are deep mycosis with a high incidence in human beings in brazil. in domestic animals histoplasmosis has been described only in dogs, but the occurrence of sporotrichosis among domestic animals in brazil has been described in dogs, cats, mules and asses. there is also a case of this disease reported in a chimpanzee (pan troglodites). the purpose of this research was to perform an epidomiological study of these mycoses using delayed hypersensitivity tests (histop ... | 1994 | 8028639 |
| field observation of a group of geoffroy's marmosets mobbing a margay cat. | | 1995 | 8529974 |
| molecular phylogeny of mitochondrial cytochrome b and 12s rrna sequences in the felidae: ocelot and domestic cat lineages. | molecular phylogeny of the cat family felidae is derived using two mitochondrial genes, cytochrome b and 12s rrna. phylogenetic methods of weighted maximum parsimony and minimum evolution estimated by neighbor-joining are employed to reconstruct topologies among 20 extant felid species. sequence analyses of 363 bp of cytochrome b and 376 bp of the 12s rrna genes yielded average pair-wise similarity values between felids ranging from 94 to 99% and from 85 to 99%, respectively. phylogenetic recons ... | 1996 | 8975691 |
| tracking the evolution of the elusive andean mountain cat (oreailurus jacobita) from mitochondrial dna. | rarely observed in the wild, the existence of the andean mountain cat (oreailurus jacobita) has been established based on only 3 skulls and 14 museum skins. the andean mountain cat's evolutionary relationship to other felids based on morphological characters is largely contradictory, with evidence aligning it with south american small spotted cats (ocelot lineage) or alternatively with pantherine lineage felids. here we describe the phylogenetic distinctiveness and placement of the andean mounta ... | 1998 | 9656464 |
| gastric spiral bacteria in small felids. | nine small cats, including one bobcat (felis rufus), one pallas cat (f. manul), one canada lynx (f. lynx canadensis), two fishing cats (f. viverrina), two margays (f. wiedii), and two sand cats (f. margarita), necropsied between june 1995 and march 1997 had large numbers of gastric spiral bacteria, whereas five large cats, including one african lion (panthera leo), two snow leopards (p. uncia), one siberian tiger (p. tigris altaica), and one jaguar (p. onca), necropsied during the same period ha ... | 1998 | 9732040 |
| phylogeographic patterns and evolution of the mitochondrial dna control region in two neotropical cats (mammalia, felidae). | the ocelot (leopardus pardalis) and margay (l. wiedii) are sister-species of neotropical cats which evolved from a lineage that migrated into south america during the formation of the panamanian land bridge 3-5 million years ago. patterns of population genetic divergence of each species were studied by phylogenetic analyses of mitochondrial dna (mtdna) control region sequences in individuals sampled across the distribution of these taxa. abundant genetic diversity and remarkably concordant phylo ... | 1998 | 9797412 |
| molecular genetic basis for deficient acetaminophen glucuronidation by cats: ugt1a6 is a pseudogene, and evidence for reduced diversity of expressed hepatic ugt1a isoforms. | the domestic cat has a significantly lower capacity to glucuronidate planar phenolic xenobiotics compared with most other mammalian species. the aim of this study was to determine the mechanistic basis for this anomaly. current knowledge of the substrate specificity of udp-glucuronosyltransferase (ugt) isoforms indicates that the cat may either lack or poorly express ugt1a6. initially, a novel cloning technique was used to identify ugt1a genes expressed in cat liver. only two unique ugt1a isofor ... | 2000 | 10862526 |
| reproductive steroid hormones and ovarian activity in felids of the leopardus genus. | reproductive endocrine patterns were characterized in female ocelots (leopardus pardalis; n = 3), tigrinas (leopardus tigrinus; n = 2), and margays (leopardus wiedii; n = 2) housed in captivity in southern brazil. females were maintained as singletons and exposed to natural fluctuations in photoperiod. cyclic changes in ovarian steroids were monitored by analyzing estrogen and progestogen metabolites in fecal samples collected five times weekly for 14 to 18 months. based on intervals between fec ... | 2001 | 11429781 |
| sequence variation in the mitochondrial dna control region of wild african cheetahs (acinonyx jubatus). | five hundred and twenty-five bp of mitochondrial control region were sequenced and analysed for 20 acinonyx jubatus and one felis catus. these sequences were compared with published sequences from another domestic cat, 20 ocelots (leopardus pardalus) and 11 margays (leopardus weidii). the intraspecific population divergence in cheetahs was found to be less than in the other cats. however variation was present and distinct groups of cheetahs were discernible. the 80 bp rs2 repetitive sequence mot ... | 2001 | 11488972 |
| seroprevalence of toxoplasma gondii in captive neotropical felids from brazil. | seroprevalence of toxoplasma gondii was determined in 865 captive neotropical felids from 20 states from brazil, sampled from september 1995 to april 1997. sera were tested by the modified agglutination test (mat) using formalin-fixed whole tachyzoites and mercaptoethanol. antibodies (mat> or =1:20) to t. gondii were found in 472 of 865 (54.6%) cats: in 45 of 99 (45.9%) jaguarundis (herpailurus yagouaroundi), in 97 of 168 (57.7%) ocelots (leopardus pardalis), in 68 of 131 (51.9%) oncillas (l. ti ... | 2001 | 11777601 |
| understanding the basic reproductive biology of wild felids by monitoring of faecal steroids. | the ability to track gonadal activity is essential for understanding the fundamentals of reproduction. faecal steroid metabolite monitoring is a well established tool for evaluating reproductive processes in diverse mammalian species, including felids. domestic cats were used as a model and injection of radiolabelled oestradiol, progesterone, testosterone and cortisol revealed that > 85% of metabolites were excreted in faeces with a time lag of 12-24 h. steroids were extracted by boiling faecal ... | 2001 | 11787193 |
| seasonal analysis of semen characteristics, serum testosterone and fecal androgens in the ocelot (leopardus pardalis), margay (l. wiedii) and tigrina (l. tigrinus). | captive adult male ocelots (leopardus pardalis, n = 3), margays (l. wiedii, n = 3) and tigrinas (l. tigrinus, n = 4) in two locations in southern brazil were studied for 14 consecutive months to evaluate the effect of season on testicular function. reproductive evaluations, including testicular measurements, electroejaculation and blood collection were conducted monthly. fecal samples were collected weekly for androgen metabolite analysis to assess testicular steroidogenic activity. ocelots had ... | 2002 | 12066863 |
| serosurvey for feline leukemia virus and lentiviruses in captive small neotropic felids in são paulo state, brazil. | feline leukemia virus (felv), gammaretrovirus, and feline immunodeficiency virus, a lentivirus, are members of the family retroviridae, and may establish persistent infections in the domestic cat (felis catus). cytoproliferative and cytosuppressive disorders may result from infection with these viruses. morbidity and mortality rates are high in domestic cats worldwide. infection of endangered neotropic small felids with these viruses could be devastating. to investigate the prevalence of felv an ... | 2003 | 12723802 |
| international training programs in reproductive sciences for conservation of latin american felids. | survival of the ten non-domestic felid species endemic to latin america is imperiled by habitat loss, poaching and poor captive management. over the past 10 years, conservation of these felids has been the primary focus of a reproductive research and training program conducted in brazil, mexico, and the usa. the objectives of this program were to: (1) provide intensive training in reproductive sciences to latin american scientists, (2) conduct collaborative studies investigating basic and applie ... | 2004 | 15271441 |
| seroprevalence and genomic divergence of circulating strains of feline immunodeficiency virus among felidae and hyaenidae species. | feline immunodeficiency virus (fiv) infects numerous wild and domestic feline species and is closely related to human immunodeficiency virus (hiv) and simian immunodeficiency virus (siv). species-specific strains of fiv have been described for domestic cat (felis catus), puma (puma concolor), lion (panthera leo), leopard (panthera pardus), and pallas' cat (otocolobus manul). here, we employ a three-antigen western blot screening (domestic cat, puma, and lion fiv antigens) and pcr analysis to sur ... | 2005 | 15956574 |
| ticks (acari: ixodida) on wild carnivores in brazil. | the present study reports field data of ticks infesting wild carnivores captured from july 1998 to september 2004 in brazil. additional data were obtained from one tick collection and from previous published data of ticks on carnivores in brazil. during field work, a total of 3437 ticks were collected from 89 cerdocyon thous (crab-eating fox), 58 chrysocyon brachyurus (maned wolf), 30 puma concolor (puma), 26 panthera onca (jaguar), 12 procyon cancrivorus (crab-eating raccoon), 4 speothos venati ... | 2005 | 16082932 |
| isolation of malassezia spp. from cerumen of wild felids. | the objective of this study was to determine the presence of different species of the genus malassezia in the healthy external auditory canal of wild felids maintained in captivity. one hundred and thirty-two adult animals (264 samples of cerumen), 77 males (58.3%) and 55 females (41.7%), were studied: large felids (55 animals) - 26 lions (panthera leo), 13 tigers (panthera tigris), 6 leopards (panthera pardus), 6 jaguars (panthera onca), 2 cheetahs (acinonyx jubatus), 2 pumas (puma concolor); s ... | 2006 | 16772235 |
| risk factors associated with sero-positivity to toxoplasma gondii in captive neotropical felids from brazil. | from september 1995 to february 2001, blood samples were collected from 865 neotropical felids belonging to 8 different species. these animals were housed in 86 institutions located in 78 cities of 20 brazilian states. our goal was to identify the risk factors associated with sero-positivity to toxoplasma gondii in captive neotropical felids from brazil. all serum samples were tested by the modified agglutination test (mat), using formalin-fixed whole tachyzoites and mercaptoethanol. for each an ... | 2007 | 17140683 |
| worldwide occurrence of feline hemoplasma infections in wild felid species. | while hemoplasma infections in domestic cats are well studied, almost no information is available on their occurrence in wild felids. the aims of the present study were to investigate wild felid species as possible reservoirs of feline hemoplasmas and the molecular characterization of the hemoplasma isolates. blood samples from the following 257 wild felids were analyzed: 35 iberian lynxes from spain, 36 eurasian lynxes from switzerland, 31 european wildcats from france, 45 lions from tanzania, ... | 2007 | 17301277 |
| neutralizing antibodies against feline herpesvirus type 1 in captive wild felids of brazil. | feline herpesvirus type 1 infection affects domestic cats, causing mainly upper respiratory tract diseases. although this infection has been described in captive and free-ranging wild felids from europe, asia, north america, and africa, no information is available on its occurrence among wild felids of brazil. in this study, 250 serum samples of six species of brazilian captive wild felids (leopardus tigrinus, leopardus wiedii, herpailurus yaguarondi, puma concolor, leopardus pardalis, and panth ... | 2005 | 17312763 |
| serologic survey of domestic felids in the petén region of guatemala. | blood samples were analyzed from 30 domestic cats (felis domesticus) from the petén region of guatemala to determine the seroprevalence of common pathogens that may pose a potential risk to native wild felids. eight of the cats had been vaccinated previously; however, owners were unable to fully describe the type of vaccine and date of administration. in addition, blood samples were obtained from two captive margays (leopardus wiedii). samples were tested for antibodies to feline immunodeficienc ... | 2005 | 17315469 |
| measurement of thyroid hormones (thyroxine, t4; triiodothyronine, t3) in captive nondomestic felids. | the aim of this research was to obtain basic values for the evaluation of thyroid function in nondomestic felids. serum thyroid hormone concentrations (thyroxine, t4; triiodothyronine, t3) were measured by radioimmunoassay in 145 cats, representing nine species of captive nondomestic felids: jaguar (panthera onca), n = 49; puma (puma concolor), n = 10; ocelot (leopardus pardalis), n = 22; oncilla (leopardus tigrinus), n = 12; geoffroy (oncifelis geoffroyi), n = 4; jaguarundi (herpailurus yaguaro ... | 2007 | 17469287 |
| genetic diversity of microsatellite loci in leopardus pardalis, leopardus wiedii and leopardus tigrinus. | the microsatellite loci fca045, fca077, fca008, and fca096 are highly variable molecular markers which were used to determine the genetic diversity in 148 captive leopardus sp. the pcr-amplified products of microsatellite loci were characterized in abi prism 310 genetic analyzer. allele numbers, heterozygosity, polymorphism information content, exclusive allele number, and shared alleles were calculated. sixty-five alleles were found and their sizes ranged from 116 to 216 bp in four microsatelli ... | 2007 | 17624861 |
| the first report of hepatozoon sp. (apicomplexa: hepatozoidae) in neotropical felids from brazil. | in order to investigate the occurrence of hepatozoon infection in neotropical felids from brazil, blood from the jugular or cephalic vein was taken from 29 non-domestic felids including ocelot (leopardus pardalis), little spotted cat (leopardus tigrinus), margay (leopardus wiedii), and jaguarondi (puma yagouaroundi) from the northeast region of brazil. hepatozoon infection was confirmed by light microscopy and molecular techniques. the results showed five naturally infected felids. partial seque ... | 2008 | 18243562 |
| molecular detection of cytauxzoon spp. in asymptomatic brazilian wild captive felids. | cytauxzoon spp. dna was detected for the first time in blood samples from asymptomatic brazilian wild captive felids. in 2006, 72 edta blood samples from seven wild felids species: puma concolor (puma), leopardus pardalis (ocelot), puma yagouaroundi (jaguarundi), leopardus wiedii (margay), leopardus tigrinus (little spotted cat), oncifelis colocolo (pampas cat) and panthera onca (jaguar) were analyzed using polymerase chain reaction to amplify the 18s rrna gene segment in order to verify the pre ... | 2009 | 19204356 |
| effect of housing and environmental enrichment on adrenocortical activity, behavior and reproductive cyclicity in the female tigrina (leopardus tigrinus) and margay (leopardus wiedii). | the objective of this study was to evaluate the effects of different captive housing conditions on reproductive cyclicity and adrenocortical activity in adult females of two small-sized felid species, the tigrina (leopardus tigrinus; n = 3) and margay (leopardus wiedii; n = 2). females were housed as singletons and subjected to three enclosure conditions over successive time periods: phase i-large, enriched enclosures for 3 months; phase ii-small, empty enclosures for 5.5 months; phase iii-the s ... | 2007 | 19360593 |
| survey of feline leukemia virus and feline coronaviruses in captive neotropical wild felids from southern brazil. | a total of 57 captive neotropical felids (one leopardus geoffroyi, 14 leopardus pardalis, 17 leopardus wiedii, 22 leopardus tigrinus, and three puma yagouaroundi) from the itaipu binacional wildlife research center (refúgio bela vista, southern brazil) were anesthetized for blood collection. feces samples were available for 44 animals, including one l. geoffroyi, eight l. pardalis, 14 l. wiedii, 20 l. tigrinus, and one p. yagouaroundi. total dna and rna were extracted from blood and feces, respe ... | 2009 | 19569487 |
| detection of bartonella spp. in neotropical felids and evaluation of risk factors and hematological abnormalities associated with infection. | although antibodies to bartonella henselae have been described in all neotropical felid species, dna has been detected in only one species, leopardus wiedii. the aim of this study was to determine whether dna of bartonella spp. could be detected in blood of other captive neotropical felids and evaluate risk factors and hematological findings associated with infection. blood samples were collected from 57 small felids, including 1 leopardus geoffroyi, 17 l. wiedii, 22 leopardus tigrinus, 14 leopa ... | 2010 | 19913372 |
| stress in wildlife species: noninvasive monitoring of glucocorticoids. | depression and stress are related pathologies extensively studied in humans. however, this relationship is not well known in animals kept in zoos and even less known in wild animals. in zoo animals, acute and chronic stress caused by difficulties in coping with stressors such as public presence and noise, among others, can induce the appearance of repetitive pathological behaviors such as stereotypies, many times associated with organic pathologies that deeply affect their health and welfare. in ... | 2010 | 20134205 |
| serological survey of toxoplasma gondii in captive neotropical felids from southern brazil. | toxoplasma gondii is the causative intracellular protozoan of toxoplasmosis in human being and animals. members of the felidae family are considered the single definitive host for the infection; both wild and domestic cats are able to excrete oocysts in the environment. wild cats maintained in captivity may serve as source of infection for other clinically susceptible animals in the same environment. the aim of this study was to determine the frequency of t. gondii igg antibodies in 57 neotropic ... | 2010 | 20472340 |
| female reproductive cycles of wild female felids. | many felid species are endangered because of destructive human activities. as a result, zoos are being tasked with sustaining genetically healthy populations in case of catastrophic extinctions. unfortunately, with the exception of a few species, most felids do not reproduce well in captivity. the ability to track reproductive activity via hormones is key to developing successful ex situ breeding programs. through the development of noninvasive fecal hormone monitoring techniques, a high degree ... | 2010 | 20888156 |
| amblyomma aureolatum (acari: ixodidae) parasitizing margay (leopardus wiedii) in rio grande do sul. | we report the finding of amblyomma aureolatum (acari: ixodidae) parasitizing margay (leopardus wiedii) in the locality of gravataí (29° 47' 12.9" s and 50° 53' 44.1" w; 241 m alt.), state of rio grande do sul, southern brazil. this is the first report of this species of ixodidae on margay in southern brazil. this finding indicates an increased number of hosts for this tick species. | 2010 | 20943026 |
| dna extraction from hair shafts of wild brazilian felids and canids. | wild felids and canids are usually the main predators in the food chains where they dwell and are almost invisible to behavior and ecology researchers. due to their grooming behavior, they tend to swallow shed hair, which shows up in the feces. dna found in hair shafts can be used in molecular studies that can unravel, for instance, genetic variability, reproductive mode and family structure, and in some species, it is even possible to estimate migration and dispersion rates in given populations ... | 2010 | 21174262 |
| identification of neotropical felid faeces using rcp-pcr. | faeces similarity among sympatric felid species has generally hampered their use in distributional, demographic and dietary studies. here, we present a new and simple approach based on a set of species-specific primers, for the unambiguous identification of faeces from sympatric neotropical felids (i.e. puma, jaguar, jaguarundi and ocelot/ margay). this method, referred to as rapid classificatory protocol-pcr (rcp-pcr), consists of a single-tube multiplex pcr yielding species-specific banding pa ... | 2011 | 21429118 |
| serological detection of viral infections in captive wild cats from costa rica. | serum samples from a total of 44 wildcats, 28 margays (leopardus wiedii), 10 ocelots (leopardus pardalis), four jaguaroundis (herpailurus yaguaroundi), one oncilla (leopardus tigrina), and one jaguar (panthera onca) were obtained between january 2001 and august 2002 from the profelis centre for rehabilitation of wild felids, located in the northwestern region of costa rica. forty three samples were tested for antibodies against feline immunodeficiency virus (fiv) and p27 antigen of feline leukem ... | 2011 | 21547230 |
| high proportion of male faeces in jaguar populations. | faeces provide relevant biological information which includes, with the application of genetic techniques, the sex and identity of individuals that defecated, thus providing potentially useful data on the behaviour and ecology of individuals, as well as the dynamics and structure of populations. this paper presents estimates of the sex ratio of different felid species (jaguar, panthera onca; puma, puma concolor; and ocelot/margay, leopardus pardalis/leopardus wiedi) as observed in field collecte ... | 2012 | 23285226 |
| cross transmission of gastrointestinal nematodes between captive neotropical felids and feral cats. | pathogen cross transmission between wildlife and domestic animals represents an extinction risk for wildlife; however, reliable verification is difficult to perform, and in some cases, it is even considered unlikely to be conducted. the aim of this work was to identify cross transmission of helminths between feral cats and captive wild felids at a zoological park in southeastern mexico. feces were collected from jaguars (panthera onca), cougars (puma concolor), ocelots (leopardus pardalis), marg ... | 2013 | 24450052 |
| molecular and serological detection of babesia spp. in neotropical and exotic carnivores in brazilian zoos. | large and small piroplasms have been observed in the blood smears of various wild carnivores, but few studies utilizing molecular characterization have been done. the goal of this present study was to investigate the presence of babesia sp. by molecular and serologic techniques in exotic and neotropical carnivores maintained in captivity at brazilian zoos. blood and sera samples were collected from 146 brazilian wild felids, 21 exotic felids, 1 genet (genetta tigrina), 3 european wolves (canis l ... | 2011 | 22946386 |
| canine distemper virus in wild felids of costa rica. | several highly infectious diseases can be transmitted through feces and cause elevated mortality among carnivore species. one such infectious agent, canine distemper virus (cdv; paramyxoviridae: morbillivirus), has been reported to affect wild carnivores, among them several felid species. we screened free-ranging and captive wild carnivores in costa rica for cdv. between 2006 and 2012, we collected 306 fecal samples from 70 jaguars (panther onca), 71 ocelots ( leopardus pardalis ), five jaguarun ... | 2016 | 26967127 |
| molecular and morphologic characterization of sarcocystis felis (apicomplexa: sarcocystidae) in south american wild felids from brazil. | wild felids are thought to share parasites with domestic cats. however, little is known of the coccidian parasites of wild felids. we investigated the presence of sarcocystis spp. in tissues of 6 species of 90 neotropical small felids killed in road accidents in the state of rio grande do sul, brazil by using microscopic and molecular techniques. formalin-fixed tissues from 28 felids were examined, and sarcocystis felis-like sarcocysts were detected in 4 wild cats (2 puma yagouaroundi and 2 leop ... | 2016 | 26827854 |
| toxoplasma gondii in free-ranging wild small felids from brazil: molecular detection and genotypic characterization. | brazil harbors the largest number of wild neotropical felid species, with ten of the twelve species recorded in the american continent. although these animals are considered to be definitive hosts for toxoplasma gondii, there are few descriptions of the parasite in these species. here, we performed a molecular detection of t. gondii by amplification of the marker its-1 from tissue samples obtained from 90 free-ranging wild small neotropical felids from rio grande do sul - brazil. of the sampled ... | 2013 | 23932730 |
| medium- and large-sized mammals in a steppic savanna area of the brazilian pampa: survey and conservation issues of a poorly known fauna. | the wildlife of the brazilian pampa is threatened by large-scale habitat loss, due in particular to the expansion of soybean cultivation and the conversion of grasslands areas into extensive areas of silviculture. it is essential to study how the mammal fauna copes with the highly fragmented, human-influenced, non-protected landscape. our study presents the results of a survey of the large- and medium-sized mammals of a typical human-influenced steppic savanna area of the pampa biome. the survey ... | 2016 | 26909626 |
| medium- and large-sized mammals in a steppic savanna area of the brazilian pampa: survey and conservation issues of a poorly known fauna. | the wildlife of the brazilian pampa is threatened by large-scale habitat loss, due in particular to the expansion of soybean cultivation and the conversion of grasslands areas into extensive areas of silviculture. it is essential to study how the mammal fauna copes with the highly fragmented, human-influenced, non-protected landscape. our study presents the results of a survey of the large- and medium-sized mammals of a typical human-influenced steppic savanna area of the pampa biome. the survey ... | 2016 | 26840582 |
| using dna barcodes to identify road-killed animals in two atlantic forest nature reserves, brazil. | road mortality is the leading source of biodiversity loss in the world, especially due to fragmentation of natural habitats and loss of wildlife. the survey of the main species victims of roadkill is of fundamental importance for the better understanding of the problem, being necessary, for this, the correct species identification. the aim of this study was to verify if dna barcodes can be applied to identify road-killed samples that often cannot be determined morphologically. for this purpose, ... | 2015 | 26244644 |
| morphological variability and asymmetry in the cheetah (acinonyx jubatus), a genetically uniform species. | the african cheetah (acinonyx jubatus) is an unusual species because of its extremely low amount of biochemical genetic variation. a comparative analysis of morphological variation of 16 cranial characters from four species of felidae (ocelot, leopardus pardalus; margay, l. wiedii; leopard, panthera pardus; and cheetah) was undertaken to evaluate the consequence of biochemical monomorphism on morphological variation. the species were selected because the cheetah has been shown previously to poss ... | 1986 | 28564107 |
| a molecular phylogeny of the felidae: immunological distance. | the phylogenetic distances between 34 of the 37 extant species of felidae were estimated using albumin immunological distances (aid). albumins from ten cat species were used to prepare antisera in rabbits. a consensus phylogeny was constructed from a matrix of reciprocal aid measurements using four distinct phylogenetic algorithms. a series of one-way measurements using the ten index antisera and those 24 species for which albumins were available (but antisera were not), permitted addition of th ... | 1985 | 28561961 |
| comparing hair-morphology and molecular methods to identify fecal samples from neotropical felids. | to avoid certain problems encountered with more-traditional and invasive methods in behavioral-ecology studies of mammalian predators, such as felids, molecular approaches have been employed to identify feces found in the field. however, this method requires a complete molecular biology laboratory, and usually also requires very fresh fecal samples to avoid dna degradation. both conditions are normally absent in the field. to address these difficulties, identification based on morphological char ... | 2017 | 28880947 |
| daily rhythmicity of behavior of nine species of south american feral felids in captivity. | the authors analyzed the daily activity rhythms of the domestic cat and of eight of the ten feral felid species that are indigenous to south america. all species showed daily rhythmicity of activity in captivity under a natural light-dark cycle. the robustness of the rhythmicity varied from species to species, but the grand mean of 34% was within the range of robustness previously described for mammalian species ranging in size from mice to cattle. there was not a sharp division between diurnal ... | 2017 | 28842189 |
| serologic survey for leptospira spp. in captive neotropical felids in foz do iguaçu, paraná, brazil. | leptospirosis is a bacterial zoonosis of worldwide distribution and is endemic in tropical countries, where rodents and other wild mammals are abundant and may act as reservoirs. leptospirosis has become a concern in captive wild animals, due mostly to their exposure to contaminated urine or environment. although domestic cats (felis catus) have been reported refractory to leptospirosis, serology and disease in captive wild felids is still unclear. in this study 57 adult, clinically healthy feli ... | 2012 | 22779223 |
| home range and density of three sympatric felids in the southern atlantic forest, brazil. | home range and minimal population densities of southern tiger cat (leopardus guttulus), margay (lepardus wiedii) and jaguarundi (puma yagouaroundi) were estimated between 2005 and 2006 in taquari valley, near the southern edge of the atlantic rainforest in brazil. home range data were collected by conventional radio telemetry (vhf) locations in a highly fragmented landscape. the average home range size, calculated using 95% kernel density estimates, was 16.01 km2 for southern tiger cat, 21.85 km ... | 2016 | 26871745 |
| [population estimates and conservation of felids (carnivora: felidae) in northern quintana roo, mexico]. | wildlife density estimates provide an idea of the current state of populations, and in some cases, reflect the conservation status of ecosystems, essential aspects for effective management actions. in mexico, several regions have been identified as high priority areas for the conservation of species that have some level of risk, like the yucatan peninsula (yp), where the country has the largest population of jaguars. however, little is known about the current status of threatened and endangered ... | 2015 | 26666134 |
| comparative myology of the ankle of leopardus wiedii and l. geoffroyi (carnivora: felidae): functional consistency with osteology, locomotor habits and hunting in captivity. | leopardus wiedii (margay) is the only arboreal neotropical felid able to climb head-first down trees, due to its ability to rotate its tarsal joint 180°. a closely related, similar-sized species, l. geoffroyi (geoffroy's cat) exhibits more typical terrestrial habits and lacks the arboreal capabilities of l. wiedii. there is osteological evidence that supports a mechanical specialization of l. wiedii's tarsal joint for inversion, but there have been no studies on the myology of this specializatio ... | 2017 | 29329954 |
| small spotted bodies with multiple specific mitochondrial dnas: existence of diverse and differentiated tigrina lineages or species (leopardus spp: felidae, mammalia) throughout latin america. | we analysed two sets of mitochondrial (mt) dna data from tigrinas (traditionally, leopardus tigrinus) we sampled in costa rica, venezuela, colombia, ecuador, peru, bolivia, northwestern and northeastern argentina and southern brazil. additionally, the analysis included some genbank sequences from southern, central and northeastern brazil. the first mt set (mt atp8+mt 16s rrna with 41 tigrina) revealed the existence of seven different tigrina-like haplogroups. they could represent, at least, 4-6 ... | 2017 | 29157065 |
| immunohistochemical identification of antigens of canine distemper virus in neotropical felids from southern brazil. | the pathologic and immunohistochemical findings associated with infections due to canine distemper virus (cdv) are described in the cougar (puma concolor), margay (leopardus wiedii) and jaguarundi (herpailurus yagouaroundi) from southern brazil. tissue sections of the neotropical felids (n = 3) that died at the bela vista sanctuary, paraná, southern brazil were routinely processed for histopathology to identify possible histopathologic patterns associated with infections due to cdv. selected for ... | 2020 | 31916410 |
| prey availability and temporal partitioning modulate felid coexistence in neotropical forests. | carnivores have long been used as model organisms to examine mechanisms that allow coexistence among ecologically similar species. interactions between carnivores, including competition and predation, comprise important processes regulating local community structure and diversity. we use data from an intensive camera-trapping monitoring program across eight neotropical forest sites to describe the patterns of spatiotemporal organization of a guild of five sympatric cat species: jaguar (panthera ... | 2019 | 30861045 |
| effects of human impacts on habitat use, activity patterns and ecological relationships among medium and small felids of the atlantic forest. | competition theory and niche theory suggest that two morphologically similar species may coexist by reducing the overlap of at least one dimension of their ecological niche. the medium and small neotropical felids are an interesting group of carnivore species for studying intraguild competition. due to differences in size it is expected that the larger ocelot exert strong interference competition on the smaller felids (southern tiger cat, margay and jaguarundi); which, in turn, may exert exploit ... | 2018 | 30067785 |
| trophic ecology of sympatric small cats in the brazilian pampa. | information about resource partitioning among small cat species that live in sympatry in south america is fairly incomplete. knowledge about feeding habits is essential for understanding the role of these predators in the environment, the impact on prey populations, and potential competition among themselves and with other carnivores. this study aimed to describe and compare the diet of four sympatric small cats in the grasslands of southern brazil. we analysed the stomach contents of 37 geoffro ... | 2018 | 30052676 |
| gastrointestinal parasites among felids inhabiting the serra dos órgãos national park, rio de janeiro, brazil. | this study aimed to investigate the species of felids that inhabit the serra dos órgãos national park (parnaso) and gastrointestinal parasites at various stages of their life cycles in the feces of these animals. between 2013 and 2015, felid feces were collected from trails in parnaso. the sampling points were georeferenced. a total of 82 fecal samples were processed, of which 79 were collected on the ground, two from captured felids and one from a necropsied animal. all samples underwent coprop ... | 2019 | 29846454 |
| molecular and serological survey of the cat-scratch disease agent (bartonella henselae) in free-ranging leopardus geoffroyi and leopardus wiedii (carnivora: felidae) from pampa biome, brazil. | the genus bartonella comprises emerging bacteria that affect humans and other mammals worldwide. felids represent an important reservoir for several bartonella species. domestic cats are the main reservoir of bartonella henselae, the agent of cat scratch disease (csd). it can be transmitted directly by scratches and bites from infected cats and via cat fleas. this study aims to investigate the circulation of bartonella spp. in free-ranging neotropical wild felids from southern brazil using serol ... | 2020 | 32974747 |
| margay (leopardus wiedii) in the southernmost atlantic forest: density and activity patterns under different levels of anthropogenic disturbance. | the margay (leopardus wiedii) is a small neotropical arboreal wild cat. this species is thought to be forest-dependent, although few studies so far have directly evaluated the relationships between spatiotemporal aspects of its ecology and landscape characteristics. the aim of this study was to estimate margay population density and activity patterns in six areas with different habitat types and levels of anthropogenic disturbance in the southernmost atlantic forest of brazil. our working hypoth ... | 2020 | 32374736 |
| first case report of nematode parasitic myelopathy in a wild feline in brazil. | parasitic myelopathy caused by gurltia paralysans in domestic cats is a disease commonly reported in several south american countries. the adult parasite is lodged in the meningeal veins and spinal cord, often causing clinical manifestations of vascular proliferation, thrombophlebitis, and medullary compression. wild felines are believed to be the definitive hosts of this parasite. the infection occurs through the ingestion of paratenic hosts, but the life cycle of g. paralysans is not yet clear ... | 2020 | 32049140 |
| cryopreservation of margay (leopardus wiedii) spermatozoa: effects of different extenders and frozen protocols. | sperm cryopreservation offers many benefits to wild felids conservation programs. however, the implementation of these programs is limited by the different responses of each species to the cryopreservation protocols and extenders used, requiring the formulation of species-specific protocols. for this purpose, semen samples from 6 margays (leopardus wiedii) were submitted to 2 cryopreservation protocols: 1) manual freezing (cooling rate of - 0.33 °c/min at 5 °c/180 min and freezing rate with two ... | 2020 | 31830687 |
| leopardus wiedii papillomavirus type 1, a novel papillomavirus species in the tree ocelot, suggests felidae lambdapapillomavirus polyphyletic origin and host-independent evolution. | the limited knowledge on papillomavirus diversity (particularly in wild animal species) influences the accuracy of pvs phylogeny and their evolutionary history, and hinders the comprehension of pvs pathogenicity, especially the mechanism of virus - related cancer progression. this study reports the identification of leopardus wiedii papillomavirus type 1 (lwiepv1), the first pv type within lambdapapillomavirus in a leopardus host. lwiepv1 full genome sequencing allowed the investigation of its t ... | 2020 | 32058075 |