Prospecting and informed dispersal: Understanding and predicting their joint eco‐evolutionary dynamics

Abstract The ability of individuals to leave a current breeding area and select a future one is important, because such decisions can have multiple consequences for individual fitness, but also for metapopulation dynamics, structure, and long‐term persistence through non‐random dispersal patterns. I...

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Autores principales: Aurore Ponchon, Alice Scarpa, Greta Bocedi, Stephen C. F. Palmer, Justin M. J. Travis
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Publicado: Wiley 2021
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spelling oai:doaj.org-article:17b780295a124e7a97fc7eb9ff2682752021-11-08T17:10:41ZProspecting and informed dispersal: Understanding and predicting their joint eco‐evolutionary dynamics2045-775810.1002/ece3.8215https://doaj.org/article/17b780295a124e7a97fc7eb9ff2682752021-11-01T00:00:00Zhttps://doi.org/10.1002/ece3.8215https://doaj.org/toc/2045-7758Abstract The ability of individuals to leave a current breeding area and select a future one is important, because such decisions can have multiple consequences for individual fitness, but also for metapopulation dynamics, structure, and long‐term persistence through non‐random dispersal patterns. In the wild, many colonial and territorial animal species display informed dispersal strategies, where individuals use information, such as conspecific breeding success gathered during prospecting, to decide whether and where to disperse. Understanding informed dispersal strategies is essential for relating individual behavior to subsequent movements and then determining how emigration and settlement decisions affect individual fitness and demography. Although numerous theoretical studies have explored the eco‐evolutionary dynamics of dispersal, very few have integrated prospecting and public information use in both emigration and settlement phases. Here, we develop an individual‐based model that fills this gap and use it to explore the eco‐evolutionary dynamics of informed dispersal. In a first experiment, in which only prospecting evolves, we demonstrate that selection always favors informed dispersal based on a low number of prospected patches relative to random dispersal or fully informed dispersal, except when individuals fail to discriminate better patches from worse ones. In a second experiment, which allows the concomitant evolution of both emigration probability and prospecting, we show the same prospecting strategy evolving. However, a plastic emigration strategy evolves, where individuals that breed successfully are always philopatric, while failed breeders are more likely to emigrate, especially when conspecific breeding success is low. Embedding information use and prospecting behavior in eco‐evolutionary models will provide new fundamental understanding of informed dispersal and its consequences for spatial population dynamics.Aurore PonchonAlice ScarpaGreta BocediStephen C. F. PalmerJustin M. J. TravisWileyarticlebreeding failurebreeding habitat selectionconspecific breeding successenvironmental changespopulation dynamicssocial informationEcologyQH540-549.5ENEcology and Evolution, Vol 11, Iss 21, Pp 15289-15302 (2021)
institution DOAJ
collection DOAJ
language EN
topic breeding failure
breeding habitat selection
conspecific breeding success
environmental changes
population dynamics
social information
Ecology
QH540-549.5
spellingShingle breeding failure
breeding habitat selection
conspecific breeding success
environmental changes
population dynamics
social information
Ecology
QH540-549.5
Aurore Ponchon
Alice Scarpa
Greta Bocedi
Stephen C. F. Palmer
Justin M. J. Travis
Prospecting and informed dispersal: Understanding and predicting their joint eco‐evolutionary dynamics
description Abstract The ability of individuals to leave a current breeding area and select a future one is important, because such decisions can have multiple consequences for individual fitness, but also for metapopulation dynamics, structure, and long‐term persistence through non‐random dispersal patterns. In the wild, many colonial and territorial animal species display informed dispersal strategies, where individuals use information, such as conspecific breeding success gathered during prospecting, to decide whether and where to disperse. Understanding informed dispersal strategies is essential for relating individual behavior to subsequent movements and then determining how emigration and settlement decisions affect individual fitness and demography. Although numerous theoretical studies have explored the eco‐evolutionary dynamics of dispersal, very few have integrated prospecting and public information use in both emigration and settlement phases. Here, we develop an individual‐based model that fills this gap and use it to explore the eco‐evolutionary dynamics of informed dispersal. In a first experiment, in which only prospecting evolves, we demonstrate that selection always favors informed dispersal based on a low number of prospected patches relative to random dispersal or fully informed dispersal, except when individuals fail to discriminate better patches from worse ones. In a second experiment, which allows the concomitant evolution of both emigration probability and prospecting, we show the same prospecting strategy evolving. However, a plastic emigration strategy evolves, where individuals that breed successfully are always philopatric, while failed breeders are more likely to emigrate, especially when conspecific breeding success is low. Embedding information use and prospecting behavior in eco‐evolutionary models will provide new fundamental understanding of informed dispersal and its consequences for spatial population dynamics.
format article
author Aurore Ponchon
Alice Scarpa
Greta Bocedi
Stephen C. F. Palmer
Justin M. J. Travis
author_facet Aurore Ponchon
Alice Scarpa
Greta Bocedi
Stephen C. F. Palmer
Justin M. J. Travis
author_sort Aurore Ponchon
title Prospecting and informed dispersal: Understanding and predicting their joint eco‐evolutionary dynamics
title_short Prospecting and informed dispersal: Understanding and predicting their joint eco‐evolutionary dynamics
title_full Prospecting and informed dispersal: Understanding and predicting their joint eco‐evolutionary dynamics
title_fullStr Prospecting and informed dispersal: Understanding and predicting their joint eco‐evolutionary dynamics
title_full_unstemmed Prospecting and informed dispersal: Understanding and predicting their joint eco‐evolutionary dynamics
title_sort prospecting and informed dispersal: understanding and predicting their joint eco‐evolutionary dynamics
publisher Wiley
publishDate 2021
url https://doaj.org/article/17b780295a124e7a97fc7eb9ff268275
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AT justinmjtravis prospectingandinformeddispersalunderstandingandpredictingtheirjointecoevolutionarydynamics
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