Results 151 to 160 of about 442,174 (304)

Inferring breeding phenology and reproductive success from the emergence of juveniles in population monitoring

Oikos, EarlyView.
Phenological shifts caused by climate change are increasingly documented in wild populations. These events may be inferred by examining changes in population abundance and age structure throughout the breeding season, often using citizen science. However, several gaps still limit optimal use of such data.
Paul Cuchot, Luis‐Miguel Chevin
wiley   +1 more source

Linking differences in personality to demography in the wandering albatross

Oikos, EarlyView.
Population dynamics are shaped by individual differences. With a good understanding of the relationships between individual differences and vital rates, population models can be improved to yield more realistic and detailed demographic projections. Personality is expected to shape individual differences in performance.
Joanie Van de Walle, Silke van Daalen, Samantha C. Patrick, Christophe Barbraud, Karine Delord, Henri Weimerskirch, Jack Thorley, Stéphanie Jenouvrier   +7 more
wiley   +1 more source

Fruit use and fruit processing by euphonias, specialized avian frugivores

Oikos, EarlyView.
Euphonias (Neotropical passerines in the genera Euphonia and Chlorophonia) form the quintessential example of a specialized avian frugivore, combining a high reliance on fruit as food and the restriction of fruit taxa exploited. To understand their specialization, we explored the integration of fruit morphological and nutritional traits with their ...
Marco A. Pizo, Paulo H. A. Camargo, Ana C. Crestani, Tobias N. Rojas   +3 more
wiley   +1 more source

Global analysis of annual survival among shorebirds reveals a negative effect of migration distance and a decline in recent decades

Oikos, EarlyView.
Annual survival is a key demographic parameter driving population trends in wildlife populations. However, despite numerous species‐specific or regional studies, global reviews of the factors affecting the survival of declining taxa remain scarce. Here, we investigated annual survival of fledged immature and adult shorebirds, a globally‐distributed and
Guillaume Dillenseger, Christopher H. J. Sparkes, Tamás Székely, Brett K. Sandercock, Robert P. Freckleton, Vojtěch Kubelka   +5 more
wiley   +1 more source

Foraging and movement flexibility shape seed dispersal by an arboreal primate in a modified landscape

Oikos, EarlyView.
As habitats change, the effectiveness of animal‐mediated seed dispersal increasingly depends on animal responses to altered structure and resources. With habitat loss and degradation accelerating across the tropics, understanding how dispersers' foraging behavior and movement influence seed removal and deposition is critical to promoting forest ...
Anaid Cárdenas‐Navarrete, Sarie Van Belle, Onja H. Razafindratsima   +2 more
wiley   +1 more source

Identifying avian influenza hotspots in wild birds in the Netherlands. [PDF]

PLoS One
Petie R, Costa EF, Kampichler C, Slaterus R, Gonzales JL.   +4 more
europepmc   +1 more source

The niche variation hypothesis predicts hunting returns across human cultures

Oikos, EarlyView.
The niche variation hypothesis (NVH) proposes that a broader population niche arises from greater individual specialization. Despite decades of empirical testing, research remains constrained to non‐human foragers, and the generality of NVH may extend beyond wildlife. The analysis of > 8000 hunting records from 12 human societies across four continents
Raul Costa‐Pereira
wiley   +1 more source

Occurrence of diverse circoviruses in wild birds in Hungary. [PDF]

Vet Res
Pataki A, Máté D, Kaszab E, Bali K, Ursu K, Fehér E.   +5 more
europepmc   +1 more source

Matching habitat choice could be brightness‐based instead of hue‐based in green‐brown polymorphic grasshoppers

Oikos, EarlyView.
Some prey species have evolved background matching, that is they resemble their surrounding environment in terms of colour and/or brightness. When prey populations inhabit patchy environments, they may even have evolved specialised phenotypes: each phenotype matching a specific subset of patches.
Lilian Cabon, Holger Schielzeth
wiley   +1 more source

Seroprevalence and Risk Analysis of Toxoplasma Gondii in Wild Birds of District Lahore Punjab, Pakistan. [PDF]

Vet Med Sci
Ali S, Imran F, Lilak AA, Latif T, von Fricken ME, Tayyub M, Saeed U, Iftikhar A.   +7 more
europepmc   +1 more source