Results 1 to 10 of about 31,615 (305)
Avian migration clocks in a changing world. [PDF]
AbstractAvian long-distance migration requires refined programming to orchestrate the birds’ movements on annual temporal and continental spatial scales. Programming is particularly important as long-distance movements typically anticipate future environmental conditions. Hence, migration has long been of particular interest in chronobiology. Captivity
Helm B, Liedvogel M.
europepmc +5 more sources
A multi-sensor array for detecting and analyzing nocturnal avian migration [PDF]
Avian migration has fascinated humans for centuries. Insights into the lives of migrant birds are often elusive; however, recent, standalone technological innovations have revolutionized our understanding of this complex biological phenomenon.
Alva I. Strand +5 more
doaj +3 more sources
A weather surveillance radar view of Alaskan avian migration. [PDF]
Monitoring avian migration within subarctic regions of the globe poses logistical challenges. Populations in these regions often encounter the most rapid effects of changing climates, and these seasonally productive areas are especially important in supporting bird populations—emphasizing the need for monitoring tools and strategies.
Sivakumar AH +4 more
europepmc +3 more sources
Diet of breeding Eleonora's falcon Falco eleonorae in Algeria: Insights for the autumn trans‐Mediterranean avian migration [PDF]
How environmental changes are affecting bird population dynamics is one of the most challenging conservation issues. Dietary studies of top avian predators could offer scope to monitor anthropogenic drivers of ecosystem changes.
Boudjéma Samraoui +6 more
doaj +2 more sources
The Alps are a natural barrier for avian broad‐front migration in Central Europe. While most birds that approach the Alps are deflected and circumvent the mountains, some choose to make the crossing.
Simon Hirschhofer +4 more
doaj +2 more sources
Arctic migration presents unique challenges to circadian physiology. In addition to the metabolic cost of maintaining a relatively high body temperature (Tb) above ambient temperature, migratory birds are also exposed to rapidly changing light conditions
Götz Eichhorn +10 more
doaj +1 more source
High individual repeatability of the migratory behaviour of a long-distance migratory seabird
Background Understanding the evolution of migration requires knowledge of the patterns, sources, and consequences of variation in migratory behaviour, a need exacerbated by the fact that many migratory species show rapid population declines and require ...
Nathalie Kürten +6 more
doaj +1 more source
Avian influenza is one of the largest known threats to domestic poultry. Influenza outbreaks on poultry farms typically lead to the complete slaughter of the entire domestic bird population, causing severe economic losses worldwide.
Artem Blagodatski +12 more
doaj +1 more source
Occurrence of sperm whale (Physeter macrocephalus) in the Russian Arctic
We report two sperm whale (Physeter macrocephalus) strandings observed in the south-east corner of the Barents Sea (i.e., Pechora Sea) in 2018, unusually far from the species’ hitherto known distribution.
Igor Popov, Götz Eichhorn
doaj +1 more source
Blackpoll Warblers ( Setophaga striata ) have declined precipitously according to the North American Breeding Bird Survey, but that survey’s coverage of the boreal breeding range is limited.
Erica H Dunn +5 more
doaj +1 more source

