Results 61 to 70 of about 4,505 (195)

Fire‐induced shifts in activity patterns of predators and prey in the Brazilian Pantanal

The Journal of Wildlife Management, EarlyView.
Using camera trap data, we observed that 5 of 6 prey species showed statistically significant changes in temporal activity patterns, while jaguars were the only predator species to adjust activity when comparing pre‐fire and post‐fire periods in an isolated rocky formation in the Pantanal region.
Sergio Eduardo Barreto de Aguiar, Grasiela Edith Oliveira de Porfirio, Leonardo França do Nascimento, Josiel de Oliveira Coelho, Mariana Alves Carvalho Queiroz, Geovani Vinco Tonolli, Wener Hugo Arruda Moreno, Diego Francis Passos Viana, Rocío Bardales, Matthew Hyde, Ricardo Daniel Ortiz‐Hoyos, Nayara Yoshie Sano, Filipe Martins Santos   +12 more
wiley   +1 more source

Behavioral responses of black bears to human presence and infrastructure in Yosemite National Park

The Journal of Wildlife Management, EarlyView.
Using GPS collar data from black bears in Yosemite National Park, we examined how bear spatiotemporal activity in relation to human development shifted during the COVID‐19 park closure in 2020. In the absence of visitors, bears maintained consistent landscape‐scale space use but altered fine‐scale spatial and temporal behaviors.
Jennifer R. Green, Caitlin Lee‐Roney, Kathleen Patrick, Rachel Mazur, Robert Lester, Erin Degutis, Ryan Leahy, Tal Avgar, Naomi B. Schwartz, Kaitlyn M. Gaynor   +9 more
wiley   +1 more source

Surplus killing by pumas Puma concolor: rumours and facts

Mammal Review, 2018
Abstract Surplus killing (i.e. predation in which predators kill more prey than necessary to satiate their hunger) appears to be widespread in carnivores and has the potential to exacerbate human–carnivore conflict. Nevertheless, little is known about the frequency of surplus killing or about its impact on livestock.
Lucherini, Mauro, Guerisoli, Maria de Las Mercedes, Luengos Vidal, Estela Maris   +2 more
openaire   +2 more sources

Cat, cougar, and jaguar spermatogenesis: a comparative analysis

Brazilian Archives of Biology and Technology, 2006
This work presents a comparative review about the spermatogenic process in cats (Felis domestica), jaguars (Panthera onca) and cougars (Puma concolor), with emphasis on testicular biometry, gonadossomatic index, volumetric proportion of testicular ...
Deiler Sampaio Costa, Tarcízio Antônio Rêgo Paula, Sérgio Luiz Pinto da Matta   +2 more
doaj   +1 more source

This is fine: Mule deer and elk do not substantially change their behavior in response to active wildfires

The Journal of Wildlife Management, EarlyView.
During an outbreak of 7 wildfires in eastern Oregon, USA, we analyzed the home range and movement patterns of mule deer and elk before, during, and immediately after wildfires. Mule deer maintained high site fidelity during the wildfire but used their home range more uniformly and had higher daily displacement than deer unaffected by wildfire.
Jacob W. Dittel, Darren A. Clark
wiley   +1 more source

Cougar density on the Oregon Coast: Using dead recovery modeling in an open population

The Journal of Wildlife Management, EarlyView.
The primary objective of this study was to determine cougar density in western Oregon. Our results demonstrate that integrating DNA collected via bio‐darting, mandatory hunter‐harvest check‐ins, and GPS collar data into the OPCR2 is a reliable method for estimating cougar densities in densely forested coastal systems.
Jason A. Kirchner, Joel S. Ruprecht, Jennifer R. Adams, Lisette P. Waits, Gregory C. Reed   +4 more
wiley   +1 more source

Genetic and phylogenetic divergence of feline immunodeficiency virus in the puma (Puma concolor) [PDF]

Journal of Virology, 1996
Feline immunodeficiency virus (FIV) is a lentivirus which causes an AIDS-like disease in domestic cats (Felis catus). A number of other felid species, including the puma (Puma concolor), carry a virus closely related to domestic cat FIV. Serological testing revealed the presence of antibodies to FIV in 22% of 434 samples from throughout the geographic ...
Carpenter, Margaret A., Brown, Eric W., Culver, Melanie, Johnson, Warren E., Pecon-Slattery, Jill, Brousset, Dulce, O'Brien, Stephen J.   +6 more
openaire   +2 more sources

El jabalí europeo (Sus scrofa): Un invasor biológico como presa reciente del puma (Puma concolor) en el sur de Chile The European wild boar (Sus scrofa): A biological invader as a recent prey of the American puma (Puma concolor) in southern Chile

Revista Chilena de Historia Natural, 2012
Se estudió la dieta del puma (Puma concolor)en los anos 1988 y 2004 en los faldeos de los volcanes Mocho y Choshuenco, pluviselva valdiviana, sur de Chile, a través de la identificación de ítemes-presas en sus heces y la búsqueda en terreno de carcasas ...
OSCAR SKEWES, CLAUDIO A MORAGA, PATRICIO ARRIAGADA, JAIME R RAU   +3 more
doaj  

Colheita farmacológica de sêmen de onças-pardas (Puma concolor: Mammalia: Carnivora: Felidae) [PDF]

Arquivo Brasileiro de Medicina Veterinária e Zootecnia
RESUMO Objetivou-se, por meio do presente estudo, avaliar o método de colheita farmacológica de sêmen com sondagem uretral, em machos de onças-pardas (Puma concolor) mantidos em cativeiro.
G.R. Araujo, T.A.R. Paula, T. Deco-Souza, R.G. Morato, L.C.F. Bergo, L.C. Silva, P.N. Jorge-Neto, B.F.B. Sampaio   +7 more
doaj   +2 more sources

Familiarity and aggression shape long‐term associations and mortality risk in a solitary ungulate

Oikos, EarlyView.
Periodic social interactions are important to animal fitness, even in solitary species. For solitary species, these interactions can be unexpected and shaped by previous encounters. Despite being aggressive and largely solitary, black rhinoceroses Diceros bicornis are commonly seen in groups, suggesting they may engage in more social behaviours than ...
Rachel M. Stein, Adrian M. Shrader
wiley   +1 more source