Multi-scale processes in metapopulations

Contributions of stage structure, rescue effect, and correlated extinctions

Chris Sutherland, David A. Elston, Xavier Lambin

Research output: Contribution to journalArticle

22 Citations (Scopus)
4 Downloads (Pure)

Abstract

Metapopulations function and persist through a combination of processes acting at a variety of spatial scales. Although the contributions of stage structure, spatially correlated processes and the rescue effect to metapopulation dynamics have been investigated in isolation, there is no empirical demonstration of all of these processes shaping dynamics in a single system. Dispersal and settlement differ according to the life stage involved and therefore stage specific population size may outperform total population size when predicting colonization-extinction dynamics. Synchrony in patch dynamics can lead to accelerated metapopulation extinction although empirical evidence of the interplay between correlated colonization events and correlated extinctions is lacking. Likewise, few empirical examples exist that provide compelling evidence of migration acting to reduce extinction risk (the rescue effect). We parameterize a hierarchy of metapopulation models to investigate these predictions using a 7 year study of a naturally occurring water vole metapopulation. Specifically, we demonstrate the importance of local stage structure in predicting both colonization and extinction events using juvenile and adult population sizes respectively. Using a novel approach for quantifying correlation in extinction events, we compare the scale of synchrony in colonization and extinction. Strikingly, the scale of dispersal acting to synchronize colonization was an order of magnitude larger than that of correlated extinctions (halving distance of the effect = 12.40km and 0.89km respectively). Additionally, we find compelling evidence for the existence of a non-trivial rescue effect. We provide a novel empirical demonstration of a variety of metapopulation processes operating at multiple spatial scales, further emphasizing the need to consider stage structure and local synchrony in the dynamics of spatially dependent, stage structured (meta) populations.
Original languageEnglish
Pages (from-to)2465-2473
Number of pages9
JournalEcology
Volume93
Issue number11
DOIs
Publication statusPublished - Nov 2012

Fingerprint

metapopulation
extinction
colonization
synchrony
population size
patch dynamics
extinction risk
effect
prediction

Cite this

Multi-scale processes in metapopulations : Contributions of stage structure, rescue effect, and correlated extinctions. / Sutherland, Chris; Elston, David A.; Lambin, Xavier.

In: Ecology, Vol. 93, No. 11, 11.2012, p. 2465-2473.

Research output: Contribution to journalArticle

@article{c0f05572df0e4766a013bb37b8155600,
title = "Multi-scale processes in metapopulations: Contributions of stage structure, rescue effect, and correlated extinctions",
abstract = "Metapopulations function and persist through a combination of processes acting at a variety of spatial scales. Although the contributions of stage structure, spatially correlated processes and the rescue effect to metapopulation dynamics have been investigated in isolation, there is no empirical demonstration of all of these processes shaping dynamics in a single system. Dispersal and settlement differ according to the life stage involved and therefore stage specific population size may outperform total population size when predicting colonization-extinction dynamics. Synchrony in patch dynamics can lead to accelerated metapopulation extinction although empirical evidence of the interplay between correlated colonization events and correlated extinctions is lacking. Likewise, few empirical examples exist that provide compelling evidence of migration acting to reduce extinction risk (the rescue effect). We parameterize a hierarchy of metapopulation models to investigate these predictions using a 7 year study of a naturally occurring water vole metapopulation. Specifically, we demonstrate the importance of local stage structure in predicting both colonization and extinction events using juvenile and adult population sizes respectively. Using a novel approach for quantifying correlation in extinction events, we compare the scale of synchrony in colonization and extinction. Strikingly, the scale of dispersal acting to synchronize colonization was an order of magnitude larger than that of correlated extinctions (halving distance of the effect = 12.40km and 0.89km respectively). Additionally, we find compelling evidence for the existence of a non-trivial rescue effect. We provide a novel empirical demonstration of a variety of metapopulation processes operating at multiple spatial scales, further emphasizing the need to consider stage structure and local synchrony in the dynamics of spatially dependent, stage structured (meta) populations.",
author = "Chris Sutherland and Elston, {David A.} and Xavier Lambin",
year = "2012",
month = "11",
doi = "10.1890/12-0172.1",
language = "English",
volume = "93",
pages = "2465--2473",
journal = "Ecology",
issn = "0012-9658",
publisher = "Ecological Society of America",
number = "11",

}

TY - JOUR

T1 - Multi-scale processes in metapopulations

T2 - Contributions of stage structure, rescue effect, and correlated extinctions

AU - Sutherland, Chris

AU - Elston, David A.

AU - Lambin, Xavier

PY - 2012/11

Y1 - 2012/11

N2 - Metapopulations function and persist through a combination of processes acting at a variety of spatial scales. Although the contributions of stage structure, spatially correlated processes and the rescue effect to metapopulation dynamics have been investigated in isolation, there is no empirical demonstration of all of these processes shaping dynamics in a single system. Dispersal and settlement differ according to the life stage involved and therefore stage specific population size may outperform total population size when predicting colonization-extinction dynamics. Synchrony in patch dynamics can lead to accelerated metapopulation extinction although empirical evidence of the interplay between correlated colonization events and correlated extinctions is lacking. Likewise, few empirical examples exist that provide compelling evidence of migration acting to reduce extinction risk (the rescue effect). We parameterize a hierarchy of metapopulation models to investigate these predictions using a 7 year study of a naturally occurring water vole metapopulation. Specifically, we demonstrate the importance of local stage structure in predicting both colonization and extinction events using juvenile and adult population sizes respectively. Using a novel approach for quantifying correlation in extinction events, we compare the scale of synchrony in colonization and extinction. Strikingly, the scale of dispersal acting to synchronize colonization was an order of magnitude larger than that of correlated extinctions (halving distance of the effect = 12.40km and 0.89km respectively). Additionally, we find compelling evidence for the existence of a non-trivial rescue effect. We provide a novel empirical demonstration of a variety of metapopulation processes operating at multiple spatial scales, further emphasizing the need to consider stage structure and local synchrony in the dynamics of spatially dependent, stage structured (meta) populations.

AB - Metapopulations function and persist through a combination of processes acting at a variety of spatial scales. Although the contributions of stage structure, spatially correlated processes and the rescue effect to metapopulation dynamics have been investigated in isolation, there is no empirical demonstration of all of these processes shaping dynamics in a single system. Dispersal and settlement differ according to the life stage involved and therefore stage specific population size may outperform total population size when predicting colonization-extinction dynamics. Synchrony in patch dynamics can lead to accelerated metapopulation extinction although empirical evidence of the interplay between correlated colonization events and correlated extinctions is lacking. Likewise, few empirical examples exist that provide compelling evidence of migration acting to reduce extinction risk (the rescue effect). We parameterize a hierarchy of metapopulation models to investigate these predictions using a 7 year study of a naturally occurring water vole metapopulation. Specifically, we demonstrate the importance of local stage structure in predicting both colonization and extinction events using juvenile and adult population sizes respectively. Using a novel approach for quantifying correlation in extinction events, we compare the scale of synchrony in colonization and extinction. Strikingly, the scale of dispersal acting to synchronize colonization was an order of magnitude larger than that of correlated extinctions (halving distance of the effect = 12.40km and 0.89km respectively). Additionally, we find compelling evidence for the existence of a non-trivial rescue effect. We provide a novel empirical demonstration of a variety of metapopulation processes operating at multiple spatial scales, further emphasizing the need to consider stage structure and local synchrony in the dynamics of spatially dependent, stage structured (meta) populations.

U2 - 10.1890/12-0172.1

DO - 10.1890/12-0172.1

M3 - Article

VL - 93

SP - 2465

EP - 2473

JO - Ecology

JF - Ecology

SN - 0012-9658

IS - 11

ER -