Many lifetime growth trajectories for a single mammal

Abstract Despite their importance in shaping life history tactics and population dynamics, individual growth trajectories have only been rarely explored in the wild because their analysis requires multiple measurements of individuals throughout their lifetime and some knowledge of age, a key timer o...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Lara Veylit, Bernt‐Erik Sæther, Jean‐Michel Gaillard, Eric Baubet, Marlène Gamelon
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	body growth development Gompertz logistic monomolecular Sus scrofa Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/9d4be32d64fb4a19b271474191d79935
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:9d4be32d64fb4a19b271474191d79935
record_format	dspace
spelling	oai:doaj.org-article:9d4be32d64fb4a19b271474191d799352021-11-08T17:10:40ZMany lifetime growth trajectories for a single mammal2045-775810.1002/ece3.8164https://doaj.org/article/9d4be32d64fb4a19b271474191d799352021-11-01T00:00:00Zhttps://doi.org/10.1002/ece3.8164https://doaj.org/toc/2045-7758Abstract Despite their importance in shaping life history tactics and population dynamics, individual growth trajectories have only been rarely explored in the wild because their analysis requires multiple measurements of individuals throughout their lifetime and some knowledge of age, a key timer of body growth. The availability of long‐term longitudinal studies of two wild boar populations subjected to contrasting environments (rich vs. poor) provided an opportunity to analyze individual growth trajectories. We quantified wild boar growth trajectories at both the population and the individual levels using standard growth models (i.e., Gompertz, logistic, and monomolecular models) that encompass the expected range of growth shapes in determinate growers. Wild boar is a rather altricial species, with a polygynous mating system and is strongly sexually dimorphic in size. According to current theories of life history evolution, we thus expect wild boar to display a sex‐specific Gompertz type growth trajectory and lower sexual size dimorphism in the poorer environment. While wild boar displayed the expected Gompertz type trajectory in the rich site at the population level, we found some evidence for potential differences in growth shapes between populations and individuals. Asymptotic body mass, growth rate and timing of maximum growth rate differed as well, which indicates a high flexibility of growth in wild boar. We also found a cohort effect on asymptotic body mass, which suggests that environmental conditions early in life shape body mass at adulthood in this species. Our findings demonstrate that body growth trajectories in wild boar are highly diverse in relation to differences of environmental context, sex and year of birth. Whether the intermediate ranking of wild boar along the precocial–altricial continuum of development at birth may explain the ability of this species to exhibit this high diversity of growth patterns remains to be investigated.Lara VeylitBernt‐Erik SætherJean‐Michel GaillardEric BaubetMarlène GamelonWileyarticlebody growthdevelopmentGompertzlogisticmonomolecularSus scrofaEcologyQH540-549.5ENEcology and Evolution, Vol 11, Iss 21, Pp 14789-14804 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	body growth development Gompertz logistic monomolecular Sus scrofa Ecology QH540-549.5
spellingShingle	body growth development Gompertz logistic monomolecular Sus scrofa Ecology QH540-549.5 Lara Veylit Bernt‐Erik Sæther Jean‐Michel Gaillard Eric Baubet Marlène Gamelon Many lifetime growth trajectories for a single mammal
description	Abstract Despite their importance in shaping life history tactics and population dynamics, individual growth trajectories have only been rarely explored in the wild because their analysis requires multiple measurements of individuals throughout their lifetime and some knowledge of age, a key timer of body growth. The availability of long‐term longitudinal studies of two wild boar populations subjected to contrasting environments (rich vs. poor) provided an opportunity to analyze individual growth trajectories. We quantified wild boar growth trajectories at both the population and the individual levels using standard growth models (i.e., Gompertz, logistic, and monomolecular models) that encompass the expected range of growth shapes in determinate growers. Wild boar is a rather altricial species, with a polygynous mating system and is strongly sexually dimorphic in size. According to current theories of life history evolution, we thus expect wild boar to display a sex‐specific Gompertz type growth trajectory and lower sexual size dimorphism in the poorer environment. While wild boar displayed the expected Gompertz type trajectory in the rich site at the population level, we found some evidence for potential differences in growth shapes between populations and individuals. Asymptotic body mass, growth rate and timing of maximum growth rate differed as well, which indicates a high flexibility of growth in wild boar. We also found a cohort effect on asymptotic body mass, which suggests that environmental conditions early in life shape body mass at adulthood in this species. Our findings demonstrate that body growth trajectories in wild boar are highly diverse in relation to differences of environmental context, sex and year of birth. Whether the intermediate ranking of wild boar along the precocial–altricial continuum of development at birth may explain the ability of this species to exhibit this high diversity of growth patterns remains to be investigated.
format	article
author	Lara Veylit Bernt‐Erik Sæther Jean‐Michel Gaillard Eric Baubet Marlène Gamelon
author_facet	Lara Veylit Bernt‐Erik Sæther Jean‐Michel Gaillard Eric Baubet Marlène Gamelon
author_sort	Lara Veylit
title	Many lifetime growth trajectories for a single mammal
title_short	Many lifetime growth trajectories for a single mammal
title_full	Many lifetime growth trajectories for a single mammal
title_fullStr	Many lifetime growth trajectories for a single mammal
title_full_unstemmed	Many lifetime growth trajectories for a single mammal
title_sort	many lifetime growth trajectories for a single mammal
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/9d4be32d64fb4a19b271474191d79935
work_keys_str_mv	AT laraveylit manylifetimegrowthtrajectoriesforasinglemammal AT bernteriksæther manylifetimegrowthtrajectoriesforasinglemammal AT jeanmichelgaillard manylifetimegrowthtrajectoriesforasinglemammal AT ericbaubet manylifetimegrowthtrajectoriesforasinglemammal AT marlenegamelon manylifetimegrowthtrajectoriesforasinglemammal
_version_	1718441499457224704

Many lifetime growth trajectories for a single mammal

Ejemplares similares