| [morphology of trypanosoma cruzi in cells of chicken and lizards (tropidurus hispidus, sauria: iguanidae) cultured at 37 degrees and 33 degrees c]. | | 1973 | 4614336 |
| experimental infections in venezuelan lizards by trypanosoma cruzi. | virulent trypomastigotes of the y strain of trypanosoma cruzi were administered to tropidurus hispidus, ameiva ameiva, cnemidophorus lemniscatus, polychrus marmoratus, and phyllodactylus ventralis (sauria). intraperitoneal and subcutaneous inoculations of lizards with mouse blood or with feces of infected rhodnius prolixus (reduviidae, triatominae), as well as forced ingestion of triturated rhodnius, produced no parasitaemias detectable either directly or by xenodiagnosis, while control mice bec ... | 1981 | 6115559 |
| postnatal neurogenesis in the medial cortex of the tropical lizard tropidurus hispidus. | young, adult and presumed old specimens of the tropical lizard tropidurus hispidus, living in an almost steady warm habitat, have been the subjects of a 5-bromodeoxiuridine immunocytochemical study to label proliferating brain cells. all animals showed abundant 5-bromodeoxiuridine-labeled nuclei in the ependyma of their telencephalic lateral ventricles, with these being especially abundant in the medial cortex ependyma. surprisingly, adult animals displayed higher numbers of labeled nuclei when ... | 2005 | 15961247 |
| a new species of pentastomida infecting tropidurus hispidus (squamata: tropiduridae) from caatinga in northeastern brazil. | this article describes a new species of brazilian raillietiella sambon, 1910 from lungs of tropidurus hispidus (spix, 1825). between july and october 2005 eighteen specimens of t. hispidus were actively captured with elastic rubber slings in granite outcrops (lajeiros) (06 degrees 59' s and 39 degrees 31' w) from caatinga formations in the municipality of farias brito, state of ceará, northeastern brazil. one female and one male of t. hispidus had lungs infected by raillietiella mottae sp. nov. ... | 2008 | 18470398 |
| pentastomid, raillietiella mottae almeida, freire and lopes, 2008, infecting lizards in an area of caatinga, northeast, brazil. | pentastomids can infect the respiratory tract of lizards, causing their death and as a result influencing the population size of hosts. despite this, studies on rates of pulmonary infection of brazilian lizards, including those living in caatinga ecosystems of northeastern brazil are scarce. active collections of lizards were performed from october to december 2004 in an area of caatinga of the estação experimental de são joão do cariri -- eesjc (07 masculine 25' s and 36 masculine 30' w), locat ... | 2008 | 18660975 |
| infection rates of pentastomids on lizards in urban habitats in the brazilian northeast. | the rates of pentastomid infections in the syntopic lizards hemidactylus mabouia and tropidurus hispidus inhabiting buildings at the federal university of paraiba, in joão pessoa, ne brazil were examined. a total of 30 specimens of hemidactylus mabouia and 55 specimens of tropidurus hispidus were examined. the animals were sacrificed by freezing and then fixed and conserved in 70% alcohol. analyses of the respiratory tract of hemidactylus mabouia demonstrated that these lizards were infected by ... | 2008 | 19197509 |
| lung infection rates in two sympatric tropiduridae lizard species by pentastomids and nematodes in northeastern brazil. | we present data on pulmonary infection rates by parasites in the lizards tropidurus hispidus spix, 1825 and t. semitaeniatus (spix, 1825) living sympatrically in the chapada do araripe mountain range, northeastern brazil. we found no parasite pulmonary infection in t. semitaeniatus. however, two pulmonary parasite species were found in the t. hispidus hosts, the pentastomid raillietiella mottae almeida, freire and lopes, 2008 and the nematode rhabdias sp. overall prevalence was 5%. prevalence of ... | 2009 | 19802459 |
| evaluation of the antimicrobial activity of the decoction of tropidurus hispidus (spix, 1825) and tropidurus semitaeniatus (spix, 1825) used by the traditional medicine. | tropidurus hispidus and tropidurus semitaeniatus are two lizard species utilized in traditional medicine in northeast brazil. their medicinal use includes diseases related with bacterial infections such as tonsillitis and pharyngitis. they are used in the form of teas (decoctions) for the treatment of illnesses. in this work, we evaluated the antimicrobial activity of the decoctions of t. hispidus (dth) and t. semitaeniatus (dts) against bacterial strains, namely, standard and multiresistant esc ... | 2012 | 21754948 |
| topical anti-inflammatory activity of oil from tropidurus hispidus (spix, 1825). | tropidurus hispidus has been used in traditional medicine in several regions of northeastern region of brazil. its medicinal use involves the treatment of diseases such as warts, sore throat, tonsillitis, chicken pox, varicella, measles, asthma, alcoholism, and dermatomycosis. the present study evaluated the topical anti-inflammatory activity of tropidurus hispidus fat in treating ear edema in an animal model. oil from t. hispidus (oth) was evaluated on its effect against experimental inflammati ... | 2015 | 26664448 |
| gastrointestinal nematodes of the lizard tropidurus hispidus (squamata: tropiduridae) from a semi-arid region of north-eastern brazil. | the tropidurid lizard tropidurus hispidus has a wide distribution in south america. however, knowledge about its helminth fauna is patchy and has been reported for only a few localities along its range of distribution. this study presents data on helminth fauna composition and parameters of infection for a population of t. hispidus from an area within the brazilian caatinga biome (semi-arid physiognomy). we found five nematode species within the gastrointestinal tract of lizards: parapharyngodon ... | 2013 | 23069649 |
| pterygosomatidae and trombiculidae mites infesting tropidurus hispidus (spix, 1825) (tropiduridae) lizards in northeastern brazil. | parasitism of the lizard tropidurus hispidus by geckobiella sp. and by larvae of eutrombicula alfreddugesi was examined in a mountainous area in chapada do araripe (07° 16' s and 39° 26' w), southern ceará state, brazil. of the 56 lizards collected (26 females, 27 males, and 3 juveniles), 40 (total prevalence of 71.42%) were infested by mites. mite-pockets were the sites most heavily infested by e. alfreddugesi larvae, while geckobiella sp. was found uniformly distributed under scales over the h ... | 2011 | 21755176 |
| [inventory of reptiles in 2 semi-arid zones from northeastern of the peninsula de araya, sucre state, venezuela]. | the fauna of reptiles in two localities from northeastern peninsula de araya (guayacán and el morahal), sucre state, venezuela, was evaluated. both zones are characterized by a vegetation of thorny tropical mount type, and semiarid climate of scarce precipitations (less than 700 mm). field trips were made between june 1997 and june 1998. the samples were collected both during day and night, with the aid of conventional accessories. the information was complemented with visual registrations and b ... | 2001 | 11915444 |
| [reptiles from cerro colorado and its surroundings, cumana, sucre state, venezuela]. | an inventory of the reptiles that inhabit in cerro colorado and its surroundings, was performed from march, 1994 to march, 1995. there were reported 8 species of snakes and 7 of lizards enclosed in 4 and 5 families repectively. aspects observed were ecolology as habitat, activity, reproduction and relative abundance. the more abundant species of lizards were: cnemidophorus femniscatus, ameiva bifrontata, (teiidae), tropidurus hispidus (tropiduridae), gonatodes vittatus and hemidactylus mabouia ( ... | 2000 | 11220219 |
| helminth infections in a pair of sympatric congeneric lizard species. | we analyzed parameters of parasitism by helminths in a pair of sympatric congeneric lizard species (tropidurus hispidus and tropidurus semitaeniatus). differences in their supracommunities (richness, composition, and abundance) and the influence of helminthic loads on minimum flight initiation distances and body temperatures were evaluated. we reported new findings of piratuba digiticauda infecting t. hispidus and oochoristica bresslaui infecting t. semitaeniatus. parapharyngodon alvarengai was ... | 2018 | 29128926 |
| characterization of nadph diaphorase- and doublecortin-positive neurons in the lizard hippocampal formation. | the lizard cortex has remarkable similarities with the mammalian hippocampus. both regions process memories, have similar cytoarchitectural properties, and are important neurogenic foci in adults. lizards show striking levels of widespread neurogenesis in adulthood and can regenerate entire cortical areas after injury. nitric oxide (no) is an important regulatory factor of mammalian neurogenesis and hippocampal function. however, little is known about its role in nonmammalian neurogenesis. here, ... | 2016 | 28118619 |
| influence of temporal variation and host condition on helminth abundance in the lizard tropidurus hispidus from north-eastern brazil. | ecological characteristics and environmental variation influence both host species composition and parasite abundance. abiotic factors such as rainfall and temperature can improve parasite development and increase its reproduction rate. the comparison of these assemblages between different environments may give us a more refined analysis of how environment affects the variation of helminth parasite abundance. the aim of the present study was to evaluate how temporal variation, host size, sex and ... | 2017 | 27121487 |
| helminths infection patterns in a lizard (tropidurus hispidus) population from a semiarid neotropical area: associations between female reproductive allocation and parasite loads. | this study reports helminth infection patterns of the lizard tropidurus hispidus from an area of semiarid caatinga in northeastern brazil (ceará state). the lizard population was parasitized by 8 helminth species, and the species composition of the component community resembles that found for other neotropical lizards. the prevalence of parasites was higher for males compared with females, whereas no relation was found between intensity of infection of 2 parasites (parapharyngodon alvarengai and ... | 2014 | 24819893 |
| spatial-temporal variation of parasites in cnemidophorus ocellifer (teiidae) and tropidurus hispidus and tropidurus semitaeniatus (tropiduridae) from caatinga areas in northeastern brazil. | parasites are natural regulators of their host populations. despite this, little is known about variations in parasite composition (spatially or temporally) in environments subjected to water-related periodic stress such as the arid and semiarid regions. the objective of this study was to evaluate the spatial-temporal variation in endoparasite species' abundance and richness in populations of neotropical cnemidophorus ocellifer, tropidurus hispidus, and tropidurus semitaeniatus lizards in the se ... | 2014 | 24481899 |
| low temperature-acclimation impairs cellular migration in the adult cerebral cortex of the tropical lizard, tropidurus hispidus (spix, 1825) (squamata: tropiduridae). | the effects of different temperature-acclimations on cellular proliferation and migration were studied in the cerebral cortex of the tropical lizard, tropidurus hispidus. lizards were divided in two groups: warm-acclimated lizards (wals), maintained at the temperature and photoperiod conditions of their natural habitat (mean temperature 26°c; 12:12 light:dark) and the cold-acclimated lizards (cals), maintained at the same cycle of illumination and a mean temperature of 16°c. animals were injecte ... | 2012 | 22786835 |
| structural organization of the cerebral cortex of the neotropical lizard tropidurus hispidus. | lizards belonging to the tropiduridae family are "sit-and-wait" foragers, relying mainly on visual identification to catch prey that cross their visual fields. little is known about the neurobiology of tropiduridae lizards. we have used neurohistological techniques to study the structural organization of the telencephalon of the neotropical lizard tropidurus hispidus, paying special attention to the cerebral cortex. as revealed by the nissl technique and golgi staining, the telencephalon of t. h ... | 2011 | 21181478 |
| anti-predator behaviour changes following an aggressive encounter in the lizard tropidurus hispidus | avoiding predators may conflict with territorial defence because a hiding territorial resident is unable to monitor its territory or defend it from conspecific intrusions. with persistent intruders, the presence of an intruder in the near past can indicate an increased probability of future intrusions. therefore, following a conspecific-intrusion, territorial residents should minimize costs from future intrusions at the cost of higher predation risks. i conducted experiments with males of the te ... | 1999 | 10693815 |
| the role of habitat shift in the evolution of lizard morphology: evidence from tropical tropidurus. | we compared morphology of two geographically close populations of the tropical lizard tropidurus hispidus to test the hypothesis that habitat structure influences the evolution of morphology and ecology at the population level. t. hispidus isolated on a rock outcrop surrounded by tropical forest use rock crevices for refuge and appear dorsoventrally compressed compared with those in open savanna. a principal components analysis revealed that the populations were differentially distributed along ... | 1997 | 9108063 |
| metropolitan lizards? urbanization gradient and the density of lagartixas (tropidurus hispidus) in a tropical city. | urbanization, with its cohort of environmental stressors, has a dramatic effect on wildlife, causing loss of biodiversity and decline in population abundance customarily associated with increasing levels of impervious surface and fragmentation of native habitats. some studies suggest that faunal species from open habitats, and with higher abundance in natural environments, seem more likely to tolerate and live in urban environments. here i evaluate how the level of urbanization affects lagartixa ... | 2020 | 32128113 |
| molecular screening of plasmodium (haemosporidia: plasmodiidae) parasites from reptiles in brazil. | hemosporidians are a monophyletic group of protozoan parasites infecting all terrestrial vertebrate orders. although plasmodium is the most studied genus within the haemosporidia, this research effort is heavily biased toward mammal and bird hosts. we screened 205 specimens of at least 18 reptile species from brazil using a partial mitochondrial cytochrome b gene marker. positive samples were sequenced and included in a phylogenetic assessment. four positive pcr products matched others identifie ... | 2019 | 31815596 |