25 documents found, page 1 of 3

Birds optimize fruit size consumed near their geographic range limits

Animals can adjust their diet to maximize energy or nutritional intake. For example, birds often target fruits that match their beak size because those fruits can be consumed more efficiently. We hypothesized that pressure to optimize diet-measured as matching between fruit and beak size-increases under stressful environments, such as those that determine species' range edges. Using fruit-consumption and trait ...

Global and regional ecological boundaries explain abrupt spatial discontinuitie...

Species interactions can propagate disturbances across space via direct and indirect effects, potentially connecting species at a global scale. However, ecological and biogeographic boundaries may mitigate this spread by demarcating the limits of ecological networks. We tested whether large-scale ecological boundaries (ecoregions and biomes) and human disturbance gradients increase dissimilarity among plant-fru...

Dietary expansion facilitates the persistence of a large frugivore in fragmente...

Management of vampire bats and rabies: a precaution for rewilding projects in t...

Made available in DSpace on 2021-06-25T10:22:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01; Changes in animal population dynamics and community composition following species (re)introduction may have unanticipated consequences for a variety of downstream ecosystem processes, including infectious disease transmission. Due the lessons learned from ongoing projects, we present a novel approach on...

Prey choice of introduced species by the common vampire bat (Desmodus rotundus)...

Small vertebrates are key elements in the frugivory networks of a hyperdiverse ...

A question of size and fear: competition and predation risk perception among fr...

Rewilding defaunated Atlantic Forests with tortoises to restore lost seed dispe...

The extinction of frugivores has been considered one of the main drivers of the disruption of important ecological processes, such as seed dispersal. Many defaunated forests are too small to restore function by reintroducing large frugivores, such as tapirs or Ateline monkeys, and the long-term fate of large-seeded plants in these areas is uncertain. However, such small fragments still host many species and pla...

Hyper abundant mesopredators and bird extinction in an Atlantic forest island

Islands can serve as model systems for understanding how biological invasions affect native species. Here we & examine the negative effects of mesopredator mammals on bird richness at Anchieta Island, an 826 ha offshore island in the coast of Brazil. Anchieta Island has the highest density of mammals of the entire Atlantic forest, especially nest predators such as marmosets and coatis, introduced more than 20 y...

Forest legislative changes and their impacts on mammal ecology and diversity in...

Forest ecosystems within Brazil host one of the highest levels of mammalian diversity on Earth, much of which within legally required forest set-asides in private landholdings. The Legal Reserves (RLs) and Permanent Protected Areas (APPs) of the Brazilian Forest Code provide an important strategy to maintain this diversity. Yet a proposed amendment to Brazil's 1965 forestry code would reduce protection of Brazi...