A5014013346- Wildlife Ecology and Conservation
- Primate Behavior and Ecology
- Animal Behavior and Welfare Studies
- Wildlife-Road Interactions and Conservation
- Animal Ecology and Behavior Studies
- Genetic and phenotypic traits in livestock
- Ecology and Vegetation Dynamics Studies
- Vector-borne infectious diseases
- Evolution and Paleontology Studies
- Bat Biology and Ecology Studies
- Human-Animal Interaction Studies
- Viral Infections and Vectors
- Fire effects on ecosystems
- Rabies epidemiology and control
- Avian ecology and behavior
- Parasite Biology and Host Interactions
- Species Distribution and Climate Change
- Hydrology and Sediment Transport Processes
- Rangeland Management and Livestock Ecology
- Genetic diversity and population structure
- Fish Ecology and Management Studies
- Amphibian and Reptile Biology
- Bee Products Chemical Analysis
- Veterinary Pharmacology and Anesthesia
- Ecology and biodiversity studies
Federal University of São João del-Rei
2015-2024
Instituto Pró-Carnívoros
2011-2023
Universidade Vale do Rio Doce
2022
Universidade Federal de Goiás
2020
Pontifícia Universidade Católica do Rio Grande do Sul
2015
Universidade Federal do Rio Grande do Sul
2015
University of Idaho
2003-2007
Florida International University
2007
Big cat genomes reveal a history of interspecies admixture and adaptive evolution genes underlying development sensory perception.
Abstract The jaguar is the top predator of Atlantic Forest (AF), which a highly threatened biodiversity hotspot that occurs in Brazil, Paraguay and Argentina. By combining data sets from 14 research groups across region, we determine population status propose spatial prioritization for conservation actions. About 85% jaguar’s habitat AF has been lost only 7% remains good condition. Jaguars persist around 2.8% live very low densities most areas. jaguars probably lower than 300 individuals...
ABSTRACT Depredation of livestock by large carnivores is an important but poorly understood source human‐carnivore conflict. We examined patterns depredation jaguars ( Panthera onca ) and pumas Puma concolor on a ranch‐wildlife reserve in western Brazil to assess factors contributing prey mortality. predicted would kill greater proportion calves than yearling adult cattle that proximity suitable habitat increase mortality risk. further speculated exposure predation risk promote grouping...
ABSTRACT Understanding coexistence between sympatric felines with similar body sizes, such as jaguars Panthera onca and pumas Puma concolor , requires knowledge of the way these predators consume partition food resources. Yet importance livestock predation on jaguar puma is poorly known. I investigated habits patterns depredation in Iguaçu National Park (INP) southern Brazil. From 1997 to 2001, collected scats opportunistically trails roads INP visited ranches border INP. found that relied...
Abstract Animal activity patterns correspond to the individual diel cycle time and is an important attribute of species coexistence in ecological communities. However, most Neotropical are still poorly understood. Based on 8‐year camera‐trapping survey conducted between 2009 2017, we evaluated puma ( Puma concolor ) a human‐modified landscape Southeastern Brazil. Our objectives were determine pattern pumas verify influence main prey anthropogenic factors their behavior. We categorized all...
Abstract Ecological communities are shaped, in part, by the manner which similar species consume and partition food resources. To better understand structure of a mammalian carnivore community from prairie habitat central North America, we determined dietary breadth overlap sympatric American badgers Taxidea taxus , coyotes Canis latrans red foxes Vulpes vulpes raccoons Procyon lotor striped skunks Mephitis mephitis via stomach content analysis 411 carcasses salvaged as part predator control...
Abstract The field of movement ecology has rapidly grown during the last decade, with important advancements in tracking devices and analytical tools that have provided unprecedented insights into where, when, why species move across a landscape. Although there been an increasing emphasis on making animal data publicly available, also conspicuous dearth availability such large carnivores. Globally, predators are conservation concern. However, due to their secretive behavior low densities,...
Tick-borne bacteria were investigated in 10 free-living jaguars and their ticks the Pantanal biome, Brazil. Jaguar sera tested by indirect fluorescent antibody assays using Rickettsia rickettsii, parkeri, amblyommii, rhipicephali, felis, bellii, Ehrlichia canis, Coxiella burnetii as crude antigens. All jaguar reacted (titer ≥ 64) to at least one species; 4 3 with E. canis C. burnetii, respectively. One presented titer R. parkeri fourfold higher than those any of other five antigens,...
Semen and blood samples were obtained from free-living (n = 6) captive 8) jaguars (Panthera onca) to compare reproductive characteristics between the two populations. analysed for volume (ml), percentage of motile spermatozoa, rate forward progression (0-5), concentration (10(6) ml(-1)), total sperm count (10(6)) morphology. Serum testosterone was determined by radioimmunoassay. Although ejaculate greater in 47 samples) than 7 (P < 0.05), produced more spermatozoa (59.3 +/- 12.8 versus...
While once abundant in the subtropical forest of Iguaçu National Park (INP) Brazil, white-lipped and collared peccary seem to have declined considerably last decade. Basic information on influence anthropogenic factors abundance INP is scarce. To assess conservation status peccaries surrounding areas, we recorded encounter rates from 1997 2000 along transects eight study sites subjected different levels illegal hunting vehicle traffic. The average rate for was 0.022±0.021 (±SD). Despite our...
Abstract Advances in the understanding of ecological factors determining predator–prey interactions have provided a strong theoretical background on diet preferences predators. We examined patterns jaguar predation caiman southern P antanal, B razil. investigated affecting rates and vulnerability to by jaguars. recorded 114 mortality incidents. Predation accounted for 62.3% ( n = 71) all found dead, while other causes (nonpredation) 37.7% 43). that jaguars prey broad size range body was...
Male vertebrates are believed to be disproportionately vulnerable parasites, but empirical support for this contention is mixed. We tested the hypothesis of higher levels parasitism in males with use counts gastrointestinal helminths 5 sympatric mammalian carnivores (American badgers, coyotes, red foxes, raccoons, striped skunks) from central Saskatchewan. Parasite burdens females and each host species were compared prevalence (percentage hosts infected), intensity (parasites per infected...
Context Human–wildlife competition is a worldwide problem. In the Brazilian Pantanal, between livestock and large cats, such as jaguar (Panthera onca) puma (Puma concolor). Only few studies have been conducted in region indicated low levels of cattle predation. addition to paucity information on predation levels, local ranchers’ understanding limited. Aims To investigate people’s perceptions cats husbandry practices order understand some causes extent jaguar–livestock interaction Pantanal....
Habitat loss and fragmentation are important threats to carnivores worldwide, can be especially intense for large predators. Jaguars have already been extirpated from over half of their original area distribution, few regions still maintain populations. For these, detailed understanding is crucial setting appropriate recovery targets in impacted areas. The Pantanal among the best examples a region with jaguar population healthy environment. Here, we analyzed 12 microsatellite loci...
Abstract Most large felids are classified as solitary species, with only lions ( Panthera leo ) and cheetahs Acinonyx jubatus exhibiting social, collaborative behaviours. Herein, we present evidence of the formation male coalitions by jaguars onca ), based on data from five studies conducted camera trapping, GPS telemetry, direct observations in Venezuelan Llanos Brazilian Pantanal. Out 7062 records obtained traps or visual observations, detected 105 cases male-male interactions, which 18...
This is the first report of cannibalism in a free-ranging population jaguars (Panthera onca). An encounter among unfamiliar may have provoked social stress, behavior reported other carnivores.