Results 71 to 80 of about 6,751 (259)

Calf mortality of semi-domesticated reindeer (Rangifer tarandus tarandus) in the Finnish reindeer-herding area [PDF]

open access: yes, 2013
During 1999-2008 calf mortality was studied in six reindeer-herding cooperatives in Northern Finland, where 3942 semi-domesticated reindeer (Rangifer tarandus tarandus) calves were equipped with radio mortality collars.
Maijala, Veikko   +2 more
core   +7 more sources

Conservation Status of Breeding Eagles in France

open access: yesПернатые хищники и их охрана, 2018
Seven species of eagle breed in France: Golden Eagle (Aquila chrysaetos), Lesser spotted Eagle (Aquila pomarina), Bonelli’s Eagle (Aquila fasciata), Booted Eagle (Hieraaetus pennatus), Short-toed Eagle (Circaetus gallicus), Osprey (Pandion haliaetus) and
Marie-Françoise Canevet   +4 more
doaj  

Assessing potential impacts of black bear predation on neonatal mortality in boreal caribou

open access: yesThe Journal of Wildlife Management, Volume 90, Issue 1, January 2026.
We used simulations to show that even if caribou give birth in areas with the least chance of encountering a black bear, there are so many bears on the landscape that predation risk for caribou calves can still be quite high. Bear densities used in our simulation were typical for the boreal forest.
Liam G. Horne   +6 more
wiley   +1 more source

Pronounced Seasonal Diet Diversity Expansion of Golden Eagles (Aquila chrysaetos) in Northern Greece during the Non-Breeding Season: The Role of Tortoises [PDF]

open access: gold, 2022
Lavrentis Sidiropoulos   +5 more
openalex   +1 more source

Predators and scavengers: Polar bears as marine carrion providers

open access: yesOikos, Volume 2026, Issue 1, January 2026.
Scavenging is a foraging strategy widely used across the animal kingdom and apex predators provide a large amount of energy in a food web by provisioning carrion. In the harsh environmental conditions of the Arctic, apex predators such as polar bears Ursus maritimus can provide scavenging opportunities for many species. Carrion can act as a buffer when
Holly E. L. Gamblin   +5 more
wiley   +1 more source

Беркут в Алтайском крае

open access: yesПернатые хищники и их охрана, 2018
Беркут (Aquila chrysaetos) в настоящее время населяет горную и предгорную части Алтайского края. Раньше этот орел гнездился также в лесных массивах равнинной части региона (ленточных и приобских борах), но, по всей вероятности, почти полностью исчез там ...
Sergey V. Vazhov   +7 more
doaj  

Um modelo de caracterização e avaliação ecológica para o planeamento e gestão [PDF]

open access: yes, 1996
Decorrem actualmente na Universidade de Évora diversos projectos de investigação visando o desenvolvimento de metodologias de caracterização e avaliação ecológica com vista ao planeamento e gestão do território.
Baptista, P.J.   +3 more
core  

Unusual raptor nests around the world [PDF]

open access: yes, 2009
From surveys in many countries, we report using unusual nesting materials (e.g., paper money, rags, metal, antlers, and large bones) and unusual nesting situations. For example, we documented nests of Steppe Eagles [Aquila nipalensis] and Upland Buzzards
Anderson, Daniel W.   +14 more
core   +2 more sources

Unruffling the global feather trade: a comparative analysis of CITES and LEMIS records of feathers and bird skins

open access: yesWildlife Biology, Volume 2026, Issue 1, January 2026.
During the 18th and 19th centuries, bird feathers (class: Aves) were harvested from wild populations and sold globally in enormous quantities to meet the rising demand of the fashion industry. Although many laws now prevent similar widescale harvest, there is a paucity of studies on the trade that has continued to occur since the 20th century.
Jasmin Broadbridge   +2 more
wiley   +1 more source

Species identification of avian feathers in Japanese Habouki using feather morphological and molecular testing

open access: yesForensic Science International: Reports
Habouki is a tool used in Japanese tea ceremonies consisting of a bundle of feathers from birds of prey and waterfowl. Habouki often include feathers from avian species that are legally protected. In this study, we examined three types of Habouki (Zabaki,
Nana Ushine   +6 more
doaj   +1 more source

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