Variations in adult body mass in roe deer: the effects of population density at birth and of habitat quality

Autor: Daniel Maillard, Daniel Delorme, Nathalie Pettorelli, Guy Van Laere, Jean-Michel Gaillard, Patrick Duncan, Olof Liberg, Petter Kjellander
Přispěvatelé: Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS), Biodémographie évolutive, Département écologie évolutive [LBBE], Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), CNERA Cervidés Sanglier, Office National de la Chasse et de la Faune Sauvage, Centre d'Études Biologiques de Chizé (CEBC), Centre National de la Recherche Scientifique (CNRS), Grimsö Wildlife Research Station, Department of Ecology, Swedish University of Agricultural Sciences (SLU)-Swedish University of Agricultural Sciences (SLU), Centre National d'Etudes et de Recherches Appliquées sur les Cervidés-Sangliers (ONCFS), Office National de la Chasse et de la Faune Sauvage (ONCFS), Centre d'études biologiques de Chizé (CEBC)
Rok vydání: 2002
Předmět:
Male
0106 biological sciences
Ungulate
Population
Environment
010603 evolutionary biology
01 natural sciences
Population density
General Biochemistry
Genetics and Molecular Biology
habitat quality
Capreolus
biology.animal
Animals
ungulates
education
General Environmental Science
Population Density
Analysis of Variance
education.field_of_study
General Immunology and Microbiology
biology
Deer
cohort variation
Body Weight
long-term monitoring
delayed density-dependence
General Medicine
15. Life on land
biology.organism_classification
[SDE.ES]Environmental Sciences/Environmental and Society
010601 ecology
Roe deer
Geography
Cohort
Delayed density dependence
Capreolus capreolus
Female
Median body
France
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
General Agricultural and Biological Sciences
Research Article
Demography
Zdroj: Proceedings of the Royal Society B: Biological Sciences
Proceedings of the Royal Society B: Biological Sciences, 2002, 269, pp.747-753. ⟨10.1098/rspb.2001.1791⟩
Proceedings of the Royal Society B: Biological Sciences, Royal Society, The, 2002, 269, pp.747-753. ⟨10.1098/rspb.2001.1791⟩
ISSN: 1471-2954
0962-8452
DOI: 10.1098/rspb.2001.1791
Popis: International audience; Body mass is a key determinant of ® tness components in many organisms, and adult mass varies considerably among individuals within populations. These variations have several causes, involve temporal and spatial factors, and are not yet well understood. We use long-term data from 20 roe deer cohorts (1977± 96) in a 2600 ha study area (Chize , western France) with two habitats contrasting in quality (rich oak forest in the North versus poor beech forest in the South) to analyse the effects of both cohort and habitat quality on adult mass (i.e. median body mass between 4 and 10 years of age) of roe deer (Capreolus capreolus). Cohort strongly in¯ uenced the adult body mass of roe deer in both sexes: males born in 1994 were 5.2 kg heavier when aged between 4 and 10 years old than males born in 1986, while females born in 1995 were 4.7 kg heavier between 4 and 10 years old than females born in 1982. For a given cohort, adult males were, on average, 0.9 kg heavier in the rich oak forest than in the poor beech forest. A similar trend occurred for adult females (0.5 kg heavier in the oak forest). The effects of cohort and habitat were additive and accounted for ca. 40% of the variation observed in the adult mass of roe deer at Chize (males: 41.2%; females: 40.2%). Population density during the spring of the birth accounted for about 35% of cohort variation, whereas rainfall in May± June had no effect. Such delayed effects of density at birth on adult body mass probably affect population dynamics, and might constitute a mechanism by which delayed density-dependence occurs in ungulate populations.
Databáze: OpenAIRE
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