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dc.contributor.authorFoster, Vania C.pt_PT
dc.contributor.authorSarmento, Pedropt_PT
dc.contributor.authorSollman, Rahelpt_PT
dc.contributor.authorTorres, Nataliapt_PT
dc.contributor.authorJácomo, Anah T. A.pt_PT
dc.contributor.authorNegrões, Nunopt_PT
dc.contributor.authorFonseca, Carlospt_PT
dc.contributor.authorSilveira, Leandropt_PT
dc.description.abstractJaguars (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 intensive nocturnal and crepuscular activity (0.69 and 0.14 kernel density, respectively, for jaguars; 0.68 and 0.19 kernel density, respectively, for pumas). Only in the Pantanal did we observe a pattern of concentrated diurnal activity for both species. We found little temporal segregation between jaguars and pumas, as they showed similar activity patterns with high coefficients of overlapping (average Δ1 = 0.86; SE = 0.15). We also observed a significant overlap between the activity patterns of the predators and their main prey species, suggesting that both predators adjust their activity to reduce their foraging energy expenditure. Our findings suggest that temporal partitioning is probably not a generalized mechanism of coexistence between jaguars and pumas; instead, the partitioning of habitat/space use and food resources may play a larger role in mediating top predator coexistence. Knowledge about these behavior aspects is crucial to elucidating the factors that enable coexistence of jaguars and pumas. Furthermore, an understanding of their respective activity periods is relevant to management and associated research efforts.pt_PT
dc.description.sponsorshipThis study received financial support from the Earthwatch Institute and The Memphis Zoo (USA). Vania Foster (Applied Biology MSc student at Aveiro University) received a scholarship from the Jaguar Conservation Fund. We are indebted to the entire Jaguar Conservation Fund team and all Earthwatch volunteers and interns for their valuable assistance with fieldwork and picture analysis. Special thanks are dedicated to Samuel Astete for his contribution to field data collection in the Caatinga region.pt_PT
dc.subjectCamera trappingpt_PT
dc.subjectCoefficient of overlappingpt_PT
dc.subjectKernel density estimatorpt_PT
dc.subjectPanthera oncapt_PT
dc.subjectPredator coexistencept_PT
dc.subjectPuma concolorpt_PT
dc.subjectTemporal partitioningpt_PT
dc.titleJaguar and puma activity patterns and predator-prey interactions in four Brazilian biomespt_PT
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