Results 41 to 50 of about 4,808 (155)

The influence of environmental conditions on the selection of spring migration routes by caribou

open access: yesEcosphere, Volume 17, Issue 2, February 2026.
Abstract Animal migrations influence key ecological processes such as predator–prey dynamics, nutrient and energy cycling, and community structure. Long‐distance migrations are declining worldwide, and a better understanding of the factors influencing animal space use during migrations is essential to maintain this behavior in the wild.
Cassandra Mac Hugh   +4 more
wiley   +1 more source

Arctic‐breeding black‐legged kittiwakes show individual variation in foraging responses to glacial conditions without consequences for reproductive output

open access: yesOikos, Volume 2026, Issue 1, January 2026.
Behavioural plasticity is likely to influence how individuals continue to access resources under rapid climate change. Plasticity will be particularly important at highly dynamic, prey‐rich foraging areas such as upwelling fronts of marine‐terminating glaciers in the high Arctic, where profitability varies significantly across space and time ...
Frederick C. Mckendrick   +18 more
wiley   +1 more source

Nest-site habitat partitioning by Arctic, Common, and Roseate terns

open access: yesAvian Conservation and Ecology
When closely related species that share aspects of their habitat niches nest in sympatry, selection is expected to favor species-specific differences in nest-site selection that allow birds to partition habitat. We tested habitat-partitioning theory in a
Nicholas Knutson   +5 more
doaj   +1 more source

Source amplitude increases with body‐mass across avian genera

open access: yesIbis, Volume 168, Issue 1, Page 127-139, January 2026.
Amplitude, or intensity, of sound is a fundamental characteristic of acoustic communication, with relevance in many scientific fields. The amplitude of an animal's acoustic signal at its source (‘source amplitude’) may be particularly relevant in the field of acoustic allometry, where relationships between species' physical and acoustic features (e.g ...
Morgan A. Ziegenhorn   +5 more
wiley   +1 more source

Primer registro continental de Gaviotín Ártico (Sterna paradisaea) en Argentina: evidencia de su cruce del Océano Pacífico al Atlántico

open access: yesEl hornero, 2017
En este trabajo se presenta el primer registro continental para Argentina del Gaviotín Ártico (Sterna paradisaea), realizado en una laguna de la localidad de Santo Domingo, provincia de Neuquén, en octubre de 2015. El registro resulta una evidencia de la
Mauro Bianchini, Gonzalo González C.
semanticscholar   +1 more source

The impacts of sleep disturbance on birds: a review of the knowledge gaps

open access: yesJournal of Avian Biology, Volume 2025, Issue 5, September 2025.
Sleep is an evolutionarily conserved behaviour critical to animal function. While the exact functions of sleep are still unclear, the ubiquity of sleep behaviour and its potential high costs (e.g. reduction in foraging time, increased vulnerability to predators) suggest sleep serves a critical role for animals.
Kamya Patel   +3 more
wiley   +1 more source

Adjustment of the annual cycle to climatic change in a long-lived migratory bird specie

open access: yesCurrent Zoology, 2009
Climate change has advanced the phenology of many organisms. Migratory animals face particular problems because climate change in the breeding and the wintering range may be asynchronous, preventing rapid response to changing conditions. Advancement in
A. P. MØLLER   +2 more
doaj  

Risk posed by the HPAI virus H5N1, Eurasian lineage goose/Guangdong clade 2.3.4.4b. genotype B3.13, currently circulating in the US

open access: yesEFSA Journal, Volume 23, Issue 7, July 2025.
Abstract The emergence of highly pathogenic avian influenza (HPAI) A(H5N1), clade 2.3.4.4b, genotype B3.13 in U.S. dairy cattle marks a significant shift in the virus' host range and epidemiological profile. Infected cattle typically exhibit mild clinical signs, such as reduced milk production, mastitis and fever, with morbidity generally below 20% and
European Food Safety Authority (EFSA)   +9 more
wiley   +1 more source

Commons are cared for: Coexistence between humans and wild birds on the island of Kihnu, Estonia

open access: yesPeople and Nature, Volume 7, Issue 5, Page 960-973, May 2025.
Abstract Local knowledge is an essential dimension of humanity's relationship with the environment. Investigating the interdependence between humans and wild birds holds value in fostering a mutually beneficial relationship with avian populations. Gathering bird eggs is a significant practice for Kihnu islanders in Estonia.
Raivo Kalle   +10 more
wiley   +1 more source

Migration of black terns Chlidonias niger and common terns Sterna hirundo between south Sweden and the Atlantic coast of Africa

open access: yesJournal of Avian Biology, Volume 2025, Issue 3, May 2025.
Light‐level geolocators were used to record the annual migration cycles of black terns Chlidonias niger (9 individuals, 11 journeys) and common terns Sterna hirundo (7 individuals, 11 journeys) breeding in southernmost Sweden. The black terns used two different non‐breeding (Oct–Mar) regions along the Atlantic coast of Africa, either north of the ...
Thomas Alerstam   +5 more
wiley   +1 more source

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