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The interactive effect of ambient temperature and brood size manipulation on nestling body mass in blue tits: an exploratory analysis of a long-term study.
Arct, Aneta; Drobniak, Szymon M; Dubiec, Anna; Martyka, Rafal; Sudyka, Joanna; Gustafsson, Lars; Cichon, Mariusz.
Afiliação
  • Arct A; Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, ul. Slawkowska 17, 31-016, Kraków, Poland. aneta.arct@gmail.com.
  • Drobniak SM; Department of Animal Ecology/Ecology and Genetics, Evolutionary Biology Centre, Uppsala University, 752 36, Norbyvägen 18 DUppsala, Sweden. aneta.arct@gmail.com.
  • Dubiec A; Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland.
  • Martyka R; Evolution and Ecology Research Centre, School of Biological, Environmental and Earth Sciences, University of New South Wales, Kensington, 2052, Australia.
  • Sudyka J; Museum and Institute of Zoology, Polish Academy of Sciences, Wilcza 64, 00-679, Warszawa, Poland.
  • Gustafsson L; Institute of Nature Conservation, Polish Academy of Sciences, Mickiewicza 33, 31-120, Kraków, Poland.
  • Cichon M; Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland.
Front Zool ; 19(1): 9, 2022 Feb 28.
Article em En | MEDLINE | ID: mdl-35227275
ABSTRACT

BACKGROUND:

Relatively few studies have examined the interactive effects of ecological factors on physiological responses in wild animals. Nearly all of them have been short-term investigations that did not include experimental manipulations, limiting our ability to understand how climate change will affect natural populations. Using a 10-year brood size manipulation experiment in wild blue tits (Cyanistes caeruleus), we quantified the impact of weather conditions and brood competition on the body mass and structural size (tarsus length) of nestlings just prior to leaving the nest.

RESULTS:

We found that variation in nestling body mass on day 14 after hatching was explained by an interactive effect between average ambient temperature experienced during nestling period and brood size treatment. Specifically, in control broods nestling body mass was correlated with temperature in a non-linear manner (concave) with the vertex point (maximum body mass) at ca. 13 °C. In contrast, in enlarged broods nestling body mass permanently increased (also non-linearly) as temperature advanced.

CONCLUSIONS:

Our results highlight the importance of considering the effects of brood rearing conditions alongside other environmental factors experienced during growth while investigating early-life environmental effects on body condition.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Front Zool Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Polônia

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Front Zool Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Polônia