Results 41 to 50 of about 4,391 (197)
In the late‐20th century, golden and Bonelli's eagles suffered population declines on the Iberian Peninsula, partly due to human persecution. Habitat assessments – especially for Bonelli's eagles – always found or assumed strong associations with cliffs that provided nesting sites.
Ryan Baumbusch +5 more
wiley +1 more source
A new acoustic telemetry tag that identifies carrier mortality by monitoring activity level
Abstract We present a new acoustic telemetry tag capable of detecting whether its carrier stops moving for long enough to presume the organism has died, and of reporting the time elapsed since movement ceased. The tag uses existing environmental sensor technology together with an algorithm with user‐specifiable thresholds, and importantly, can separate
Karl P. Phillips +7 more
wiley +1 more source
Classifying behavior from short‐interval biologging data: An example with GPS tracking of birds
Recent advances in digital data collection have spurred accumulation of immense quantities of data that have potential to lead to remarkable ecological insight, but that also present analytic challenges.
Silas Bergen +6 more
doaj +1 more source
SUMMARY A 17‐year‐old, 24‐kg, female greater rhea (Rhea americana) presented with an acute onset of left wing droop. Clinical examination and radiographs revealed an open, simple, displaced, short‐oblique diaphyseal fracture of the distal third of the left humerus.
Pierre Huberdeau +6 more
wiley +1 more source
Tracking pan-continental trends in environmental contamination using sentinel raptors — what types of samples should we use? [PDF]
Biomonitoring using birds of prey as sentinel species has been mooted as a way to evaluate the success of European Union directives that are designed to protect people and the environment across Europe from industrial contaminants and pesticides. No such
Coeurdassier, Michael +18 more
core +9 more sources
EU Action Plan against Wildlife Trafficking : recent Belgian criminal cases [PDF]
The article introduces international, European and Belgian legislation on trade in endangered species of wild animals and plants and discusses the EU Action Plan against Wildlife Trafficking.
Bouquelle, Farah, Lavrysen, Luc
core +2 more sources
We assessed the effectiveness of Wildlife Recovery Centers by comparing dispersal behavior of rehabilitated and wild Spanish imperial eagles using GPS tracking. Rehabilitated individuals initially moved shorter distances, rested more, and hunted less than wild controls, but these differences declined over time and ultimately disappeared.
Unai Ormazabal‐Santa Cruz +8 more
wiley +1 more source
Over much of its range, the bald eagle (Haliaeetus leucocephalus) has substantially recovered from declines in the mid–late 1900s, which resulted from habitat loss, human persecution and disturbance, and contamination by the pesticide DDT.
Daniel A. Airola +6 more
doaj +1 more source
Causes of mortality in eagles submitted to the National Wildlife Health Center 1975–2013
We summarized the cause of death for 2,980 bald eagles (Haliaeetus leucocephalus) and 1,427 golden eagles (Aquila chrysaetos) submitted to the National Wildlife Health Center in Madison, Wisconsin, USA, for diagnosis between 1975 and the beginning of ...
Robin E. Russell, J. Christian Franson
doaj +1 more source

