3 documents found, page 1 of 1
Birds optimize fruit size consumed near their geographic range limits
Martins, Lucas P; Stouffer, Daniel B; Blendinger, Pedro G; Böhning-Gaese, Katrin; Costa, José Miguel; Dehling, D Matthias; Donatti, Camila IAnimals 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...
Martins, Lucas P; Stouffer, Daniel B; Blendinger, Pedro G; Böhning-Gaese, Katrin; Buitrón-Jurado, Galo; Correia, Marta; Costa, José MiguelSpecies 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...
The database of the PREDICTS (Projecting Responses of Ecological Diversity In C...
Hudson, Lawrence N; Newbold, Tim; Contu, Sara; Hill, Samantha L L; Lysenko, Igor; De Palma, Adriana; Phillips, Helen R P; Alhusseini, Tamera IThe PREDICTS project-Projecting Responses of Ecological Diversity In Changing Terrestrial Systems (www.predicts.org.uk)-has collated from published studies a large, reasonably representative database of comparable samples of biodiversity from multiple sites that differ in the nature or intensity of human impacts relating to land use. We have used this evidence base to develop global and regional statistical mod...