Results 111 to 120 of about 15,406 (254)
Ethology, EarlyView.This conceptual figure uses Directed Acyclic Graphs (DAG) to represent the hypothesized biological mechanism in which age and/or plumage traits affect reproductive success, and social interactions mediate these relationships. It highlights the predicted decomposition of (a) the total effect into the direct and indirect effects under scenarios of (b ...
Zachary M. Laubach +4 more
wiley +1 more source
Ecology of Passerine birds wintering at Utah Lake [PDF]
, 1951 During the period of October to April of the winter of 1950-51, an ecological study was undertaken of a population or passerine birds wintering in a segment of the Utah Lake Shore.
Murphy, Joseph R.
core
A systematic review and meta‐analysis of variation in nest predation of ground‐nesting birds
Ibis, EarlyView.Predation and communities of predators of ground‐nesting bird nests and fledglings have been studied across multiple groups of ground‐nesting birds, such as waders, waterbirds, gamebirds and passerines, and habitats, but differences and similarities between groups are less studied.
Mari D. Klaussen +5 more
wiley +1 more source
Trans‐oceanic migration and wind utilization by Amur Falcons (Falco amurensis)
Ibis, EarlyView.The Amur Falcon Falco amurensis performs one of the world's longest raptor migrations, involving a non‐stop crossing of the Indian Ocean of approximately 2800 km. While the existence of this route is known, the mechanistic details of wind exploitation and seasonal navigation remain to be fully elucidated.
Bernd‐Ulrich Meyburg +3 more
wiley +1 more source
Ibis, EarlyView.Sympatric species are expected to use resources differently along one or more ecological dimensions. This can be complex when there is partial separation along multiple dimensions, such as where bird species exhibit similarities in habitat use and diet.
S. R. Davies +5 more
wiley +1 more source
Towards a unified publicly accessible database of avian type specimens
Ibis, EarlyView.Type specimens represent the crucial physical reference for any scientific bird name, but type material is scattered widely across the globe, and there is still no one comprehensive source documenting the presence, status and condition of all avian type specimens, as well as associated information on nomenclature and the validity of individual names ...
Guy M. Kirwan +6 more
wiley +1 more source
Avian Conservation and Ecology, 2010 Long-distance migrants wintering in tropical regions face a number of critical conservation threats throughout their lives, but seasonal estimates of key demographic parameters such as winter survival are rare.
Anna M. Calvert +2 more
doaj
The European Zoological JournalDuring studies of avian breeding biology, ecology and population dynamics, researchers have to breach nesting territories, which can potentially lead to various disturbances resulting in altered relationships in the predator-prey system.
J. Płóciennik, B. Czyż, L. Hałupka
doaj +1 more source
Seasonal variation in preen gland secretions of Tristram's Storm Petrel (Hydrobates tristrami)
Ibis, EarlyView.Preen gland secretions are known to vary depending on sex, season and species and are thought to play essential roles in avian life history. However, their chemical composition and functions remain largely unclear in Procellariiform seabirds with well‐developed olfactory senses. Storm petrels, known for their distinctive body odour, may use preen gland
Taiki Terajima +2 more
wiley +1 more source
Ecology and EvolutionDietary variation among cohorts can have a major impact on how populations adapt to environmental variation. Although variation in diet between cohorts and across habitats has been studied in many taxa, this is not true for most birds, especially smaller
J. R. Coomes +5 more
doaj +1 more source