3 documents found, page 1 of 1
Jaguar and puma activity patterns and predator-prey interactions in four Brazil...
Foster, Vania C.; Sarmento, Pedro; Sollman, Rahel; Torres, Natalia; Jácomo, Anah T. A.; Negrões, Nuno; Fonseca, Carlos; Silveira, LeandroJaguars (Panthera onca) and pumas (Puma concolor) coexist throughout the Neotropics. Using camera trapping in four Brazilian biomes, we compare the daily activity patterns of the jaguar and puma, and their relationships with their main prey species. We used a kernel density method to quantify daily activity patterns and to investigate overlap between these predators and their main prey. Both cats showed intensi...
One or two cameras per station? Monitoring jaguars and other mammals in the Amazon
Negrões, Nuno; Sollmann, Rahel; Fonseca, Carlos; Jácomo, Anah T. A.; Revilla, Eloy; Silveira, LeandroCamera trapping has become a popular technique to monitor carnivore populations due to its usefulness in estimating abundance. Nevertheless, there are a number of problems associated with study design which are motivating researchers to search for a compromise that ensures improvement of precision while being cost-effective. We have used data from a capture– recapture study in a forested area in central Brazil t...
Use of camera-trapping to estimate puma density and influencing factors in cent...
Negrões, Nuno; Sarmento, Pedro; Cruz, Joana; Eira, Catarina; Revilla, Eloy; Fonseca, Carlos; Sollmann, Rahel; Tôrres, Natália M.; Furtado, Mariana M.We used remotely triggered cameras to collect data on Puma (Puma concolor) abundance and occupancy in an area of tropical forest in Brazil where the species’ status is poorly known. To evaluate factors influencing puma occupancy we used data from 5 sampling campaigns in 3 consecutive years (2005 to 2007) and 2 seasons (wet and dry), at a state park and a private forest reserve. We estimated puma numbers and den...