Background While the gene flow in some organisms is strongly affected by physical barriers
and geographical distance, other highly mobile species are able to overcome such …

Ecological theory predicts that animals with similar foraging strategies should not be able to
co‐exist without segregating either in space, time or diet. In communities, intra‐specific …

Individual size and body condition determine the breeding success in many species of birds.
We here present morphometric data and describe the relationships between body size, …

Haematology and plasma biochemistry values are useful tools for ecological research. They
have been used to investigate the physiological state and the adaptation of individuals to …

Species-specific population estimates are fundamental for many aspects of ecology, evolution,
and conservation, yet they are lacking for most species. Aiming to fill this gap, Callaghan …

Space-based tracking technology using low-cost miniature tags is now delivering data on
fine-scale animal movement at near-global scale. Linked with remotely sensed environmental …

Background During the non-breeding period, many birds migrate to milder areas, found
closer to the equator than their breeding sites. Opposite movements are very rare. In the …

… Juan F. Masello and Petra Quillfeldt received financial support from the German Research
Foundation, (DFG SPP 1158, MA2574/6–1, QU148/5-1). FCT - Portugal provided financial …

We present the first data on the breeding biology of wild Burrowing Parrots (Cyanoliseus
patagonus). We studied chick growth and breeding success at the largest colony of the species …

Penguins lost the ability to fly more than 60 million years ago, subsequently evolving a hyper-specialized
marine body plan. Within the framework of a genome-scale, fossil-inclusive …