Publications

TitleAbstractYear(sorted ascending)
Filter
PMID
Filter
an unidentified babesia of the domestic cat (felis domesticus).an unidentified babesia was seen in a blood smear from a cat showing signs of anaemia. the cat responded to treatment with diminazene (berenil). the morphology of the parasite is described and a comparison is made with other babesia which have been described from the domestic cat and wild felids. this parasite most closely resembled b. herpailuri described from a jaguarundi in south america.19807241489
echinococcus infections in colombian animals.the results of a survey involving more than 4,000 colombian mammals, carried out to detect echinococcus infections, are presented. adult worms were found in 5 of 121 carnivores: e. oligarthrus in 1 of 11 ocelots, 2 of 9 jaguarundi cats and single puma; and e. vogeli in 1 of 15 domestic dogs. although bush dogs were present, none could be examined. polycystic larvae were found in 96 of 325 pacas (29.5%) and in 6 of 1,168 (0.5%) spiny rats, proechimys spp. none of the 118 agouti showed hydatids bu ...19817325284
a coprological survey of parasites of wild neotropical felidae.in conjunction with an ecological study of jaguars in the cockscomb basin of belize, central america, fecal samples from jaguars (panthera onca), jaguarundis (felis yagouaroundi), ocelots (felix pardalis), and pumas (felix concolor) were examined for parasite products (eggs, larvae, and oocysts). of the 45 samples examined, 39 (86.7%) were positive for parasite products, 23 of 25 (92%) jaguar samples were positive, as were all of the puma (4/4) and ocelot (8/8) samples. four of 6 samples from un ...19863783346
development of embryos produced by intracytoplasmic sperm injection of cat oocytes.development of cat oocytes following intracytoplasmic sperm injection (icsi) and in vitro fertilization (ivf) was compared in two experiments. domestic cat donors (used as a model for wild felids) were treated with 150 iu equine chorionic gonadotrophin (ecg) on treatment day 1 or a total of 10-15 iu of follicle-stimulating hormone (fsh) over four days, followed by 100 iu human chorionic gonadotrophin (hcg) on day 5 and follicular aspiration 24-26 h later. a jaguarundi (herpailurus yaguarondi) fe ...19989835378
development of embryos produced by intracytoplasmic sperm injection of cat oocytes.development of cat oocytes following intracytoplasmic sperm injection (icsi) and in vitro fertilization (ivf) was compared in two experiments. domestic cat donors (used as a model for wild felids) were treated with 150 iu equine chorionic gonadotrophin (ecg) on treatment day 1 or a total of 10-15 iu of follicle-stimulating hormone (fsh) over four days, followed by 100 iu human chorionic gonadotrophin (hcg) on day 5 and follicular aspiration 24-26 h later. a jaguarundi (herpailurus yaguarondi) fe ...19989835378
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 ...200111777601
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 ...200111777601
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 ...200312723802
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 ...200312723802
molecular genetics and evolution of melanism in the cat family.melanistic coat coloration occurs as a common polymorphism in 11 of 37 felid species and reaches high population frequency in some cases but never achieves complete fixation. to investigate the genetic basis, adaptive significance, and evolutionary history of melanistic variants in the felidae, we mapped, cloned, and sequenced the cat homologs of two putative candidate genes for melanism (asip [agouti] and mc1r) and identified three independent deletions associated with dark coloration in three ...200312620197
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 ...200516082932
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 ...200516082932
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 ...200517312763
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 ...200517312763
parasites of free-ranging small canids and felids in the bolivian chaco.parasite surveys of free-ranging wildlife provide important information for monitoring population health. between march 2001 and march 2003, we sampled 10 ocelots (leopardus pardalis), eight geoffroy's cats (oncifelis geoffroyi), a jaguarundi (herpailurus yaguarondi), five pampas foxes (pseudalopex gymnocercus), and three crab-eating foxes (cerdocyon thous) at three sites in the bolivian chaco. the objective of the study was to survey the parasite fauna of these carnivores and compare prevalence ...200617312790
parasites of free-ranging small canids and felids in the bolivian chaco.parasite surveys of free-ranging wildlife provide important information for monitoring population health. between march 2001 and march 2003, we sampled 10 ocelots (leopardus pardalis), eight geoffroy's cats (oncifelis geoffroyi), a jaguarundi (herpailurus yaguarondi), five pampas foxes (pseudalopex gymnocercus), and three crab-eating foxes (cerdocyon thous) at three sites in the bolivian chaco. the objective of the study was to survey the parasite fauna of these carnivores and compare prevalence ...200617312790
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 ...200616772235
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 ...200616772235
seroprevalences of antibodies to neospora caninum and toxoplasma gondii in zoo animals.neospora caninum is an apicomplexan parasite that causes neuromuscular disease in dogs and abortions in cattle. little is known about the prevalence of antibodies to this parasite in zoo animals. sera from 556 animals, from 13 czech and slovak zoos were tested for antibodies to n. caninum and toxoplasma gondii by indirect fluorescent antibody test. antibodies to n. caninum were found in 31 of 556 zoo animals (5.6%), representing 18 of 114 species tested: eurasian wolf (canis lupus lupus), maned ...200616387445
seroprevalences of antibodies to neospora caninum and toxoplasma gondii in zoo animals.neospora caninum is an apicomplexan parasite that causes neuromuscular disease in dogs and abortions in cattle. little is known about the prevalence of antibodies to this parasite in zoo animals. sera from 556 animals, from 13 czech and slovak zoos were tested for antibodies to n. caninum and toxoplasma gondii by indirect fluorescent antibody test. antibodies to n. caninum were found in 31 of 556 zoo animals (5.6%), representing 18 of 114 species tested: eurasian wolf (canis lupus lupus), maned ...200616387445
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 ...200717140683
serosurvey of small carnivores in the bolivian chaco.five species of bolivian carnivores, including nine geoffroy's cats (oncifelis geoffroyi), ten ocelots (leopardus pardalis), one jaguarundi (herpailurus yaguarondi), nine pampas foxes (pseudalopex gymnocercus), and five crab-eating foxes (cerdocyon thous) were sampled between march 2001 and april 2005 and tested for antibodies to common pathogens of domestic carnivores. carnivores were trapped in three areas: a village, the region between human settlements and a protected area, and within kaa-iy ...200717699100
serosurvey of small carnivores in the bolivian chaco.five species of bolivian carnivores, including nine geoffroy's cats (oncifelis geoffroyi), ten ocelots (leopardus pardalis), one jaguarundi (herpailurus yaguarondi), nine pampas foxes (pseudalopex gymnocercus), and five crab-eating foxes (cerdocyon thous) were sampled between march 2001 and april 2005 and tested for antibodies to common pathogens of domestic carnivores. carnivores were trapped in three areas: a village, the region between human settlements and a protected area, and within kaa-iy ...200717699100
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 ...200717469287
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 ...200717469287
efficiency of box-traps and leg-hold traps with several bait types for capturing small carnivores (mammalia) in a disturbed area of southeastern brazil.capturing small carnivores is often necessary for obtaining key ecological data. we compared the efficiency of box and leg-hold traps, using live and dead bait, to capture six carnivore species (herpailurus yagouaroundi (e. geoffroyi, 1803), leopardus tigrinus (schreber, 1775), nasua nasua (linnaeus, 1766), cerdocyon thous (linnaeus, 1766), eira barbara (linnaeus, 1758), and galictis cuja (molina, 1782)). the use of leg-hold traps significantly increased the capture rate of carnivores (5.77%) an ...200718457140
efficiency of box-traps and leg-hold traps with several bait types for capturing small carnivores (mammalia) in a disturbed area of southeastern brazil.capturing small carnivores is often necessary for obtaining key ecological data. we compared the efficiency of box and leg-hold traps, using live and dead bait, to capture six carnivore species (herpailurus yagouaroundi (e. geoffroyi, 1803), leopardus tigrinus (schreber, 1775), nasua nasua (linnaeus, 1766), cerdocyon thous (linnaeus, 1766), eira barbara (linnaeus, 1758), and galictis cuja (molina, 1782)). the use of leg-hold traps significantly increased the capture rate of carnivores (5.77%) an ...200718457140
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 ...200818243562
[occurrence of platynosomum illiciens in enclosured wild cats in the state of bahia, brazil].this paper reports the occurrence of eggs of platynosomum illiciens, found in the feces of three species of wild cats herpailurus yagouaroundi, puma concolor and leopardus tigrinus from material collected at the enclosures of the park zoobotânico getúlio vargas in salvador, bahia, brazil. it is the first record of this parasite in p. onca and l. tigrinus.200819265585
[occurrence of platynosomum illiciens in enclosured wild cats in the state of bahia, brazil].this paper reports the occurrence of eggs of platynosomum illiciens, found in the feces of three species of wild cats herpailurus yagouaroundi, puma concolor and leopardus tigrinus from material collected at the enclosures of the park zoobotânico getúlio vargas in salvador, bahia, brazil. it is the first record of this parasite in p. onca and l. tigrinus.200819265585
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 ...200919569487
cowpox virus outbreak in banded mongooses (mungos mungo) and jaguarundis (herpailurus yagouaroundi) with a time-delayed infection to humans.often described as an extremely rare zoonosis, cowpox virus (cpxv) infections are on the increase in germany. cpxv is rodent-borne with a broad host range and contains the largest and most complete genome of all poxviruses, including parts with high homology to variola virus (smallpox). so far, most cpxv cases have occurred individually in unvaccinated animals and humans and were caused by genetically distinguishable virus strains.200919727399
cowpox virus outbreak in banded mongooses (mungos mungo) and jaguarundis (herpailurus yagouaroundi) with a time-delayed infection to humans.often described as an extremely rare zoonosis, cowpox virus (cpxv) infections are on the increase in germany. cpxv is rodent-borne with a broad host range and contains the largest and most complete genome of all poxviruses, including parts with high homology to variola virus (smallpox). so far, most cpxv cases have occurred individually in unvaccinated animals and humans and were caused by genetically distinguishable virus strains.200919727399
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 ...200919204356
jaguarundi (puma yagouaroundi) (geoffroy, 1803) (carnivora, felidae) food habits in a mosaic of atlantic rainforest and eucalypt plantations of southeastern brazil.food habits of jaguarundi (puma yagouaroundi) (geoffroy, 1803) (carnivora, felidae) were studied between november 2000 and november 2001, in a 24.9 km(2) area of secondary atlantic rainforest and eucalypt plantation, in the serra de paranapiacaba, são paulo state, brazil. analyses of 26 fecal and regurgitate samples, obtained over a stretch of 570.1 km, showed the consumption of 19 prey items and 74 prey occurrences. small mammals were the most frequent food item (42.5%), followed by birds (21%) ...200919802447
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 ...201020134205
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 ...201019913372
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 ...201020472340
isolation and genetic characterisation of toxoplasma gondii from a red-handed howler monkey (alouatta belzebul), a jaguarundi (puma yagouaroundi), and a black-eared opossum (didelphis aurita) from brazil.toxoplasma gondii isolates are highly diverse in domestic animals from brazil. however, little is known about the genetics of this parasite from wild mammals in the same region. reveal genetic similarity or difference of t. gondii among different animal populations is necessary for us to understand transmission of this parasite. here we reported isolation and genetic characterisation of three t. gondii isolates from wild animals in brazil. the parasite was isolated by bioassay in mice from tissu ...201021055880
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 ...201021174262
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 ...201121429118
mesocestoides sp. (eucestoda, mesocestoididae) parasitizing four species of wild felines in southern brazil.leopardus colocolo, leopardus geoffroyi, leopardus tigrinus and puma yagouaroundi are wild feline species endangered mainly due to habitat destruction and vehicle run overs. seventeen felines hit on the roads were collected in southern brazil and examined for parasites. cestodes were identified as mesocestoides sp. the parasites were found in the small intestine of the hosts with a prevalence of 66.7% (l. colocolo and l. tigrinus), 60% (p. yagouaroundi) and 50% (l. geoffroyi). rodents and lizard ...201121722494
quantification and molecular characterization of the feline leukemia virus a receptor.virus receptors and their expression patterns on the cell surface determine the cell tropism of the virus, host susceptibility and the pathogenesis of the infection. feline thiamine transport protein 1 (fthtr1) has been identified as the receptor for feline leukemia virus (felv) a. the goal of the present study was to develop a quantitative, taqman real-time pcr assay to investigate fthtr1 mrna expression in tissues of uninfected and felv-infected cats, cats of different ages, in tumor tissues a ...201121889617
hemoplasmas in wild canids and felids in brazil.hemotropic mycoplasmas, epicellular erythrocytic bacterial parasites lacking a cell wall, are the causative agents of infectious anemia in numerous mammalian species. the presence of hemotropic mycoplasmas in blood samples of neotropical and exotic wild canids and felids from brazilian zoos were recorded using molecular techniques. blood samples were collected from 146 brazilian wild felids, 19 exotic felids, 3 european wolves (canis lupus), and from 97 brazilian wild canids from zoos in the bra ...201122946419
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 ...201122946386
molecular detection of tick-borne bacterial agents in brazilian and exotic captive carnivores.the present study aims to detect and characterize by molecular techniques, the presence of tick-borne pathogens in wild captive carnivore blood samples from brazil. blood was collected from 76 brazilian felids, 23 exotic felids, 3 european wolves (canis lupus), and 97 brazilian canids maintained in captivity in zoos located in são paulo and mato grosso states, brazil. dna of each sample was used in pcr reactions for ehrlichia, anaplasma, and rickettsia identification. the blood from 10/100 (10%) ...201222749737
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 ...201222779223
a new metastrongyloidean species (nematoda) parasitizing pulmonary arteries of puma (herpailurus) yagouaroundi (é. geoffroy, 1803) (carnivora: felidae) from brazil.angiostrongylus felineus n. sp. (nematoda, metastrongyloidea), parasitic in puma (herpailurus) yagouaroundi (é. geoffroy, 1803) (carnivora, felidae) from the municipality of juiz de fora, minas gerais state, brazil, is described and illustrated herein. angiostrongylus felineus n. sp. differs from all congeneric species by having the anterior extremity with accentuated cuticular expansion and by smaller size of spicules. this study describes for the first time a species of angiostrongylus in a wi ...201323016945
a new metastrongyloidean species (nematoda) parasitizing pulmonary arteries of puma (herpailurus) yagouaroundi (é. geoffroy, 1803) (carnivora: felidae) from brazil.angiostrongylus felineus n. sp. (nematoda, metastrongyloidea), parasitic in puma (herpailurus) yagouaroundi (é. geoffroy, 1803) (carnivora, felidae) from the municipality of juiz de fora, minas gerais state, brazil, is described and illustrated herein. angiostrongylus felineus n. sp. differs from all congeneric species by having the anterior extremity with accentuated cuticular expansion and by smaller size of spicules. this study describes for the first time a species of angiostrongylus in a wi ...201323016945
seroprevalence of toxoplasma gondii infection in captive mammals in three zoos in mexico city, mexico.antibodies to toxoplasma gondii were determined in 167 mammals in three zoos in mexico city, mexico, using the modified agglutination test (mat). overall, antibodies to t. gondii were found in 89 (53.3%) of the 167 animals tested. antibodies were found in 35 of 43 wild felidae: 2 of 2 bobcats (lynx rufus); 4 of 4 cougars (puma concolor); 10 of 13 jaguars (panthera onca); 5 of 5 leopards (panthera pardus); 7 of 7 lions (panthera leo); 2 of 3 tigers (panthera tigris); 2 of 3 ocelots (leopardus par ...201324063119
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 ...201323932730
genome-wide comparison of cowpox viruses reveals a new clade related to variola virus.zoonotic infections caused by several orthopoxviruses (opv) like monkeypox virus or vaccinia virus have a significant impact on human health. in europe, the number of diagnosed infections with cowpox viruses (cpxv) is increasing in animals as well as in humans. cpxv used to be enzootic in cattle; however, such infections were not being diagnosed over the last decades. instead, individual cases of cowpox are being found in cats or exotic zoo animals that transmit the infection to humans. both ani ...201324312452
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 ...201324450052
resistance to antibiotics of clinical relevance in the fecal microbiota of mexican wildlife.there are a growing number of reports of antibiotic resistance (atbr) in bacteria living in wildlife. this is a cause for concern as atbr in wildlife represents a potential public health threat. however, little is known about the factors that might determine the presence, abundance and dispersion of atbr bacteria in wildlife. here, we used culture and molecular methods to assess atbr in bacteria in fecal samples from howler monkeys (alouatta palliata), spider monkeys (ateles geoffroyi), tapirs ( ...201425233089
feeding interactions in an assemblage of terrestrial carnivores in central mexico.we evaluated the strategies of resources partitioning among species, dietary overlap and niche breadth in an assemblage of carnivores integrated by top predators (puma concolor and panthera onca) and mesopredators(leoparduspardalis,leoparduswiedii,puma yagouaroundi,nasuanarica andurocyoncinereoargenteus). the aim of this study was to investigate the mechanisms explaining the coexistence among species at a temperate zone in central mexico.201531966103
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, ...201526244644
[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 ...201526666134
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 ...201626827854
exposure of free-ranging wild carnivores and domestic dogs to canine distemper virus and parvovirus in the cerrado of central brazil.human population growth around protected areas increases the contact between wild and domestic animals, promoting disease transmission between them. this study investigates the exposure of free-ranging wild carnivores and domestic dogs to canine distemper virus (cdv) and parvovirus in emas national park (enp) in the cerrado savanna of central brazil. serum samples were collected from 169 wild carnivores, including the maned wolf (chrysocyon brachyurus), crab-eating fox (cerdocyon thous), hoary f ...201627469023
exposure of free-ranging wild carnivores and domestic dogs to canine distemper virus and parvovirus in the cerrado of central brazil.human population growth around protected areas increases the contact between wild and domestic animals, promoting disease transmission between them. this study investigates the exposure of free-ranging wild carnivores and domestic dogs to canine distemper virus (cdv) and parvovirus in emas national park (enp) in the cerrado savanna of central brazil. serum samples were collected from 169 wild carnivores, including the maned wolf (chrysocyon brachyurus), crab-eating fox (cerdocyon thous), hoary f ...201627469023
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 ...201626967127
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 ...201626909626
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 ...201626840582
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 ...201626871745
putative progressive and abortive feline leukemia virus infection outcomes in captive jaguarundis (puma yagouaroundi).feline leukemia virus (felv) is an exogenous gammaretrovirus of domestic cats (felis catus) and some wild felids. the outcomes of felv infection in domestic cats vary according to host susceptibility, virus strain, and infectious challenge dose. jaguarundis (puma yagouaroundi) are small wild felids from south and central america. we previously reported on felv infections in jaguarundis. we hypothesized here that the outcomes of felv infection in p. yagouaroundi mimic those observed in domestic c ...201729149857
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 ...201728880947
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 ...201728842189
molecular detection of viral agents in free-ranging and captive neotropical felids in brazil.we describe molecular testing for felid alphaherpesvirus 1 (fhv-1), carnivore protoparvovirus 1 (cppv-1), feline calicivirus (fcv), alphacoronavirus 1 (feline coronavirus [fcov]), feline leukemia virus (felv), feline immunodeficiency virus (fiv), and canine distemper virus (cdv) in whole blood samples of 109 free-ranging and 68 captive neotropical felids from brazil. samples from 2 jaguars ( panthera onca) and 1 oncilla ( leopardus tigrinus) were positive for fhv-1; 2 jaguars, 1 puma ( puma conc ...201728677421
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 ...201830067785
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 ...201830052676
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 ...201930861045
oslerus (anafilaroides) sp. in a jaguarundi (puma yagouaroundi) from brazil.we report the occurrence of oslerus (anafilaroides) sp. parasitizing the lung of the jaguarundi (puma yagouaroundi) in brazil.201930507335
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 ...201929846454
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 ...202031916410
non-invasive sampling in itatiaia national park, brazil: wild mammal parasite detection.non-invasive sampling through faecal collection is one of the most cost-effective alternatives for monitoring of free-living wild mammals, as it provides information on animal taxonomy as well as the dynamics of the gastrointestinal parasites that potentially infect these animals. in this context, this study aimed to perform an epidemiological survey of gastrointestinal parasites using non-invasive faecal samples from carnivores and artiodactyls identified by stool macroscopy, guard hair morphol ...202032807197
is angiostrongylosis a realistic threat for domestic cats?three species of angiostrongylus have been found in felids thus far, i.e., angiostrongylus chabaudi, angiostrongylus felineus and angiostrongylus vasorum. angiostrongylus chabaudi lives in the right heart and pulmonary arteries of the definitive natural host, the european wildcat (felis silvestris), and non-patent infections have been reported in domestic cats (felis catus). angiostrongylus felineus, described in the puma yaguarondi (herpailurus yagouaroundi), has never been reported in domestic ...202032351980
Displaying items 1 - 76 of 76