Results 241 to 250 of about 537,485 (280)

Exploring the exploration: implications of leaving or remaining at the natal site during the early stages of independence in a partially migratory bird

open access: yesIbis, EarlyView.
Despite being an important fraction of any animal population, juveniles are a severely understudied group. Juveniles often need to learn an array of skills that allow them to survive independently and do so while undertaking decisions that may impact their fitness, recruitment and survival, having therefore relevant demographic implications.
Manuela S. Rodrigues   +6 more
wiley   +1 more source

Dietary flexibility and high arthropod availability prevent food limitation in a mountain population of breeding Northern Wheatears

open access: yesIbis, EarlyView.
Mountain ecosystems are under strong environmental pressure and are considered highly vulnerable to climate change, which is likely to lead to forest expansion and loss of open alpine grasslands, threatening many specialized species. However, for most alpine birds, even basic ecological knowledge, such as their diet, remains limited, restricting our ...
Camille Mermillon   +6 more
wiley   +1 more source

Impact of climate on the migration phenology of the endangered Little Bustard in Spain

open access: yesIbis, EarlyView.
The phenology of animals is closely tied to seasonal climatic patterns so, by altering temperature and precipitation regimes, climate change disrupts the phenological cycles of species. More specifically, the influence of rising temperatures on the phenology of bird migration has been long studied.
Irene Hernández‐Téllez   +6 more
wiley   +1 more source

Mental disorders in childhood or adolescence and subsequent comprehensive school achievement

open access: yesJournal of Child Psychology and Psychiatry, EarlyView.
Background Childhood mental disorders are associated with poorer school achievement, with potential negative long‐term socio‐economic consequences, but few large‐scale studies have examined this association, particularly the role of age at onset.
Yan Li   +5 more
wiley   +1 more source

Heat exchange rates between adult sockeye salmon (Oncorhynchus nerka) and the environment

open access: yesJournal of Fish Biology, EarlyView.
Abstract Body temperatures of salmon do not always match the temperatures of their immediate environment. We investigated the relationship between varying ambient water temperatures and body temperatures of adult sockeye salmon Oncorhynchus nerka using Newton's law of cooling and non‐linear mixed models.
Avery Dextrase   +2 more
wiley   +1 more source

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