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Livro Vermelho dos Mamíferos de Portugal Continental

A publicação deste Livro Vermelho, o primeiro inteiramente dedicado aos mamíferos, teve a ambição de ir bastante além do seu objetivo central – avaliar o risco de extinção das espécies de Portugal Continental. Entre os objetivos suplementares deste projeto incluem-se: (i) compilar toda a informação existente sobre a ocorrência de mamíferos no território nacional, como dados museológicos, resultados de censos e ...

Livro Vermelho dos Mamíferos de Portugal Continental

MAMMALS IN PORTUGAL: A data set of terrestrial, volant, and marine mammal occur...

Mammals are threatened worldwide, with 26% of all species being included in the IUCN threatened categories. This overall pattern is primarily associated with habitat loss or degradation, and human persecution for terrestrial mam mals, and pollution, open net fishing, climate change, and prey depletion for marine mammals. Mammals play a key role in maintaining ecosystems func tionality and resilience, and theref...

MAMMALS IN PORTUGAL : A data set of terrestrial, volant, and marine mammal occu...

Mammals are threatened worldwide, with 26% of all species being includedin the IUCN threatened categories. This overall pattern is primarily associatedwith habitat loss or degradation, and human persecution for terrestrial mam-mals, and pollution, open net fishing, climate change, and prey depletion formarine mammals. Mammals play a key role in maintaining ecosystems func-tionality and resilience, and therefore...

MAMMALS in Portugal: A data set of terrestrial, volant, and marine mammal occur...

Mammals are threatened worldwide, with 26% of all species being includedin the IUCN threatened categories. This overall pattern is primarily associatedwith habitat loss or degradation, and human persecution for terrestrial mam-mals, and pollution, open net fishing, climate change, and prey depletion formarine mammals. Mammals play a key role in maintaining ecosystems func-tionality and resilience, and therefore...

Wild dogs at stake: Deforestation threatens the only Amazon endemic canid, the ...

The persistent high deforestation rate and fragmentation of the Amazon forests are the main threats to their biodiversity. To anticipate and mitigate these threats, it is important to understand and predict how species respond to the rapidly changing landscape. The short-eared dog Atelocynus microtis is the only Amazon-endemic canid and one of the most understudied wild dogs worldwide. We investigated short-ear...

Jaguar and puma activity patterns and predator-prey interactions in four Brazil...

Jaguars (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

Camera 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...

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...