Programma Vigoni Collaborazione Italia-Germania 2011-2012 Nocturnally migratory birds interrupt migration temporarily if they have depleted energy reserves and find suitable ‘refuelling’ sites. Besides weather conditions, a major determinant of whether a bird rests or continues migration is body fat. We are interested in understanding which physiological mechanisms switch on and off nocturnal migration during and after refuelling at a stop-over site. We have identified a candidate hormone, ghrelin, that may be a major player in influencing decisions to migrate or not. The aim of this project is to substantiate (or disprove) the evidence for the role of ghrelin in the regulation of migratory behavior
Many species of diurnal birds migrate nocturnally. Here, a series of studies of the blackcap (Sylvia...
Migration is a critical life history stage for a large number of bird species. This event involves m...
Abstract Introduction: A remarkable aspect of bird migration is its nocturnality, particularly commo...
Billions of birds migrate long distances to either reach breeding areas or to spend the winter at mo...
Billions of birds migrate long distances to either reach breeding areas or to spend the winter at mo...
In both captive and free-living birds, the emergence of the migratory phenotype is signalled by rapi...
Several species of diurnal birds are nocturnal migrants. The activation of nocturnal activity requir...
During migration, a number of bird species rely on stopover sites for resting and feeding before and...
During migration, a number of bird species rely on stopover sites for resting and feeding before and...
During migration, a number of bird species rely on stopover sites for resting and feeding before and...
During migration, a number of bird species rely on stopover sites for resting and feeding before and...
During migration, a number of bird species rely on stopover sites for resting and feeding before and...
During migration, a number of bird species rely on stopover sites for resting and feeding before and...
During migration, birds spend more than 80 % of the time at stopover sites to rest and refuel before...
A large number of passerine species migrate at night, although most of them are diurnal outside the ...
Many species of diurnal birds migrate nocturnally. Here, a series of studies of the blackcap (Sylvia...
Migration is a critical life history stage for a large number of bird species. This event involves m...
Abstract Introduction: A remarkable aspect of bird migration is its nocturnality, particularly commo...
Billions of birds migrate long distances to either reach breeding areas or to spend the winter at mo...
Billions of birds migrate long distances to either reach breeding areas or to spend the winter at mo...
In both captive and free-living birds, the emergence of the migratory phenotype is signalled by rapi...
Several species of diurnal birds are nocturnal migrants. The activation of nocturnal activity requir...
During migration, a number of bird species rely on stopover sites for resting and feeding before and...
During migration, a number of bird species rely on stopover sites for resting and feeding before and...
During migration, a number of bird species rely on stopover sites for resting and feeding before and...
During migration, a number of bird species rely on stopover sites for resting and feeding before and...
During migration, a number of bird species rely on stopover sites for resting and feeding before and...
During migration, a number of bird species rely on stopover sites for resting and feeding before and...
During migration, birds spend more than 80 % of the time at stopover sites to rest and refuel before...
A large number of passerine species migrate at night, although most of them are diurnal outside the ...
Many species of diurnal birds migrate nocturnally. Here, a series of studies of the blackcap (Sylvia...
Migration is a critical life history stage for a large number of bird species. This event involves m...
Abstract Introduction: A remarkable aspect of bird migration is its nocturnality, particularly commo...