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Connectivity among thermal habitats buffers the effects of warm climate on life‐history traits and population dynamics

1. Contemporary climate change affects population dynamics, but its influence varies with landscape structure. It is still unclear whether landscape fragmentation buffers or amplifies the effects of climate on population size and the age and body size of individuals composing these populations. 2. T...

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Autores principales: Pellerin, Félix, Bestion, Elvire, Winandy, Laurane, Di Gesu, Lucie, Richard, Murielle, Aguilée, Robin, Cote, Julien
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9828496/
https://www.ncbi.nlm.nih.gov/pubmed/36131637
http://dx.doi.org/10.1111/1365-2656.13814
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author Pellerin, Félix
Bestion, Elvire
Winandy, Laurane
Di Gesu, Lucie
Richard, Murielle
Aguilée, Robin
Cote, Julien
author_facet Pellerin, Félix
Bestion, Elvire
Winandy, Laurane
Di Gesu, Lucie
Richard, Murielle
Aguilée, Robin
Cote, Julien
author_sort Pellerin, Félix
collection PubMed
description 1. Contemporary climate change affects population dynamics, but its influence varies with landscape structure. It is still unclear whether landscape fragmentation buffers or amplifies the effects of climate on population size and the age and body size of individuals composing these populations. 2. This study aims to investigate the impacts of warm climates on lizard life‐history traits and population dynamics in habitats that vary in their connectivity. 3. We monitored common lizard Zootoca vivipara populations for 3 years in an experimental system in which both climatic conditions and connectivity among habitats were simultaneously manipulated. We considered two climatic treatments (i.e. present‐day climate and warm climate [+1.4°C than present‐day climate]) and two connectivity treatments (i.e. a connected treatment in which individuals could move from one climate to the other and an isolated treatment in which movement between climates was not possible). We monitored survival, reproduction, growth, dispersal, age and body size of each individual in the system as well as population density through time. 4. We found that the influence of warm climates on life‐history traits and population dynamics depended on connectivity among thermal habitats. Populations in warm climates were (i) composed of younger individuals only when isolated; (ii) larger in population size only in connected habitats and (iii) composed of larger age‐specific individuals independently of the landscape configuration. The connectivity among habitats altered population responses to climate warming likely through asymmetries in the flow and phenotype of dispersers between thermal habitats. 5. Our results demonstrate that landscape fragmentation can drastically change the dynamics and persistence of populations facing climate change.
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spelling pubmed-98284962023-01-10 Connectivity among thermal habitats buffers the effects of warm climate on life‐history traits and population dynamics Pellerin, Félix Bestion, Elvire Winandy, Laurane Di Gesu, Lucie Richard, Murielle Aguilée, Robin Cote, Julien J Anim Ecol Research Articles 1. Contemporary climate change affects population dynamics, but its influence varies with landscape structure. It is still unclear whether landscape fragmentation buffers or amplifies the effects of climate on population size and the age and body size of individuals composing these populations. 2. This study aims to investigate the impacts of warm climates on lizard life‐history traits and population dynamics in habitats that vary in their connectivity. 3. We monitored common lizard Zootoca vivipara populations for 3 years in an experimental system in which both climatic conditions and connectivity among habitats were simultaneously manipulated. We considered two climatic treatments (i.e. present‐day climate and warm climate [+1.4°C than present‐day climate]) and two connectivity treatments (i.e. a connected treatment in which individuals could move from one climate to the other and an isolated treatment in which movement between climates was not possible). We monitored survival, reproduction, growth, dispersal, age and body size of each individual in the system as well as population density through time. 4. We found that the influence of warm climates on life‐history traits and population dynamics depended on connectivity among thermal habitats. Populations in warm climates were (i) composed of younger individuals only when isolated; (ii) larger in population size only in connected habitats and (iii) composed of larger age‐specific individuals independently of the landscape configuration. The connectivity among habitats altered population responses to climate warming likely through asymmetries in the flow and phenotype of dispersers between thermal habitats. 5. Our results demonstrate that landscape fragmentation can drastically change the dynamics and persistence of populations facing climate change. John Wiley and Sons Inc. 2022-10-03 2022-11 /pmc/articles/PMC9828496/ /pubmed/36131637 http://dx.doi.org/10.1111/1365-2656.13814 Text en © 2022 The Authors. Journal of Animal Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Society. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
spellingShingle Research Articles
Pellerin, Félix
Bestion, Elvire
Winandy, Laurane
Di Gesu, Lucie
Richard, Murielle
Aguilée, Robin
Cote, Julien
Connectivity among thermal habitats buffers the effects of warm climate on life‐history traits and population dynamics
title Connectivity among thermal habitats buffers the effects of warm climate on life‐history traits and population dynamics
title_full Connectivity among thermal habitats buffers the effects of warm climate on life‐history traits and population dynamics
title_fullStr Connectivity among thermal habitats buffers the effects of warm climate on life‐history traits and population dynamics
title_full_unstemmed Connectivity among thermal habitats buffers the effects of warm climate on life‐history traits and population dynamics
title_short Connectivity among thermal habitats buffers the effects of warm climate on life‐history traits and population dynamics
title_sort connectivity among thermal habitats buffers the effects of warm climate on life‐history traits and population dynamics
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9828496/
https://www.ncbi.nlm.nih.gov/pubmed/36131637
http://dx.doi.org/10.1111/1365-2656.13814
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