ArticleOecologia2019
Age-dependent effects of predation risk on night-time hypothermia in two wintering passerine species.
Article in Oecologia, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
11 citing papers in PubMed, 29 citations in OpenAlex.
- Torpor-assisted migration: Regular use of shallow torpor reduces rest-phase energy expenditure for songbirds during migration.The Journal of animal ecology · 2026Article
- Heterospecific Dominance Hierarchy in Roosting Site Selection at a Shared Nest Resource.Ecology and evolution · 2026Article
- Endotherms trade body temperature regulation for the stress response.Proceedings. Biological sciences · 2023Article
- Interactive effects of rising temperatures and urbanisation on birds across different climate zones: A mechanistic perspective.Global change biology · 2023Review
- Variation in reproductive investment increases body temperature amplitude in a temperate passerine.Oecologia · 2021Article
- Predictability of food supply modulates nocturnal hypothermia in a small passerine.Biology letters · 2020Article
- Age differences in night-time metabolic rate and body temperature in a small passerine.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2020Article
- Rest-Phase Hypothermia Reveals a Link Between Aging and Oxidative Stress: A Novel Hypothesis.Frontiers in physiology · 2020Article
- Frequent nocturnal torpor in a free-ranging Australian honeyeater, the noisy miner.Die Naturwissenschaften · 2019Article
- Age-dependent effects of predation risk on night-time hypothermia in two wintering passerine species.Oecologia · 2019Article
- Torpor use in response to predation risk in a small, free-living bird.Behavioral ecology : official journal of the International Society for Behavioral EcologyArticle
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Small animals that winter at northern latitudes need to maximize energy intake and minimize energy loss. Many passerine birds use night-time hypothermia to conserve energy. A potential cost of night-time hypothermia with much theoretical (but little empirical) support is increased risk of night-time predation, due to reduced vigilance and lower escape speed in hypothermic birds. This idea has never been tested in the wild. We, therefore, increased perceived predation risk in great tits (Parus major) and blue tits (Cyanistes caeruleus) roosting in nest boxes during cold winter nights to measure any resultant effect on their use of night-time hypothermia. Roosting birds of both species that experienced their first winter were less prone to use hypothermia as an energy-saving strategy at low ambient temperatures when exposed to increased perceived predation risk either via handling (great tits) or via predator scent manipulation (blue tits). However, we did not record such effects in birds that were in their second winter or beyond. Our results suggest that effects of increased predation risk are age- and temperature specific. This could be caused by age-related differences in experience and subsequent risk assessment, or by dominance-related variation in habitat quality between young and old birds. Predation risk could, through its effect on use and depth of night-time hypothermia, be important for total energy management and winter survival for resident birds at northern latitudes.
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