At BiMa-Lab, Bird and Mammal Evolution, Systematics and Ecology Lab, we study several aspects of vertebrate evolution, systematics, ecology and conservation. Currently, our projects focus on factors affecting patterns of diversity in ecosystems, assemblages, populations and species traits, and the scales of approach go from local to global. Most of our work is applied to ecosystem and animal conservation and management, always keeping in mind the human dimensions of wildlife, under a logic of sustainability.
We are based at the Department of Zoology of the Universidade Federal do Rio Grande do Sul, Brazil.
BiMa-Lab’s paper – Who’s calling? Acoustic identification of Brazilian bats – highlited at the UFRGS scientific dissemination portal.
BiMa-Lab is organizing the 2nd Bioacoustics Symposium at UFRGS in November 2018. Here
Eating down the food chain: generalism is not an evolutionary dead end for herbivores
A new study published in Ecology Letters (http://onlinelibrary.wiley.com/doi/10.1111/ele.12911/full) by Danny Rojas (Departamento de Ciencias Naturales y Matemáticas de la Pontificia Universidad Javeriana Cali, Colômbia) Maria João Ramos Pereira (PPGBAN-BiMaLab, Universidade Federal do Rio Grande do Sul), Carlos Fonseca (CESAM, Universidade de Aveiro) and Liliana Dávalos (Stony Brook University, EUA)
elucidates the relationship between diet and speciation.
Here we found that a highly varied herbivorous diet (including for example fruits, nectar and pollen) or a predominantly herbivorous diet that includes some animal resources increases the formation of new species. In contrast, when bats specialize in a single type of plant product, the rate of formation of new species tends to decline. Therefore, general herbivory or a moderately insectivorous omnivory favors the increase of species diversity in an evolutionary setting, possibly because this strategy is a form of insurance against the erratic and unpredictable patterns of flowering and fruiting of plants in the Neotropics. The study has already had repercussion in the international scientific media,