Results 41 to 50 of about 4,391 (197)

Nests in trees are as good as or better than cliffs for two formerly persecuted, primarily cliff nesting eagles in Spain: a cautionary tale in defining the habitat of range‐restricted or threatened species

open access: yesWildlife Biology, EarlyView.
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

open access: yesMethods in Ecology and Evolution, EarlyView.
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

open access: yesEcology and Evolution, 2022
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

Handbuch der Oologie. [PDF]

open access: yes
v.1:Lf.13(p.769 ...
Meise, W.   +1 more
core   +2 more sources

Surgical management of an open humeral fracture in a greater rhea (Rhea americana): Internal placement of a locking compression plate and post‐operative complications

open access: yesVeterinary Record Case Reports, Volume 14, Issue 2, May 2026.
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]

open access: yes, 2016
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]

open access: yes, 2020
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

Short‐term effects of wildlife rehabilitation disappear over time in the wild: A case study on Spanish imperial eagles

open access: yesConservation Science and Practice, Volume 8, Issue 5, May 2026.
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

Bald eagle population increase, reproductive success, and nesting habitat in central interior California

open access: yesCalifornia Fish and Wildlife Journal
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

open access: yesWildlife Society Bulletin, 2014
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

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