Hybridization is not always limited to two species; often multiple species are interbreeding.
In birds, there are numerous examples of species that hybridize with multiple other species …

The ultimate field guide to the birds of Argentina, an indispensable companion for any
traveller to the region. This spectacular new field guide is the ultimate reference to the birds …

Quaternary climatic changes have been invoked as important drivers of species
diversification worldwide. However, the impact of such changes on vegetation and animal …

Citizen science initiatives contain a large volume of observations that can be useful to
address ecological questions for a wide array of organisms. However, one limitation of …

Background Quaternary climate fluctuations have been acknowledged as major drivers of
the geographical distribution of the extraordinary biodiversity observed in tropical biomes …

Gene flow, the exchange of genetic material between populations is an important biological
process, which shapes and maintains biodiversity. The successful movement of individuals …

Island biogeography is one of the most powerful subdisciplines of ecology: its mathematical
predictions that island size and distance to mainland determine diversity have withstood the …

Over the last approximately 2.6 Myr, Earth's climate has been dominated by cyclical ice ages
that have profoundly affected species' population sizes, but the impact of impending …

Aim Madagascar is renowned for its exceptional species diversity and endemism. The
island's mountainous regions are thought to have played a role in lineage and species …

Human beings have a strong, innate desire to classify and name things. We like things to be
clear-cut. The way we approach classification of birds is as good an example as any of this …