Dispersal polymorphism and the speed of biological invasions.

The speed at which biological range expansions occur has important consequences for the conservation management of species experiencing climate change and for invasion by exotic organisms. Rates of dispersal and population growth are known to affect the speed of invasion, but little is known about t...

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Autores principales:	Elizabeth C Elliott, Stephen J Cornell
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/bcfbe397f919456c8054862b2e356025
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spelling	oai:doaj.org-article:bcfbe397f919456c8054862b2e3560252021-11-18T07:11:45ZDispersal polymorphism and the speed of biological invasions.1932-620310.1371/journal.pone.0040496https://doaj.org/article/bcfbe397f919456c8054862b2e3560252012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22911701/?tool=EBIhttps://doaj.org/toc/1932-6203The speed at which biological range expansions occur has important consequences for the conservation management of species experiencing climate change and for invasion by exotic organisms. Rates of dispersal and population growth are known to affect the speed of invasion, but little is known about the effect of having a community of dispersal phenotypes on the rate of range expansion. We use reaction-diffusion equations to model the invasion of a species with two dispersal phenotypes into a previously unoccupied landscape. These phenotypes differ in both their dispersal rate and population growth rate. We find that the presence of both phenotypes can result in faster range expansions than if only a single phenotype were present in the landscape. For biologically realistic parameters, the invasion can occur up to twice as fast as a result of this polymorphism. This has implications for predicting the speed of biological invasions, suggesting that speeds cannot just be predicted from looking at a single phenotype and that the full community of phenotypes needs to be taken into consideration.Elizabeth C ElliottStephen J CornellPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 7, p e40496 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Elizabeth C Elliott Stephen J Cornell Dispersal polymorphism and the speed of biological invasions.
description	The speed at which biological range expansions occur has important consequences for the conservation management of species experiencing climate change and for invasion by exotic organisms. Rates of dispersal and population growth are known to affect the speed of invasion, but little is known about the effect of having a community of dispersal phenotypes on the rate of range expansion. We use reaction-diffusion equations to model the invasion of a species with two dispersal phenotypes into a previously unoccupied landscape. These phenotypes differ in both their dispersal rate and population growth rate. We find that the presence of both phenotypes can result in faster range expansions than if only a single phenotype were present in the landscape. For biologically realistic parameters, the invasion can occur up to twice as fast as a result of this polymorphism. This has implications for predicting the speed of biological invasions, suggesting that speeds cannot just be predicted from looking at a single phenotype and that the full community of phenotypes needs to be taken into consideration.
format	article
author	Elizabeth C Elliott Stephen J Cornell
author_facet	Elizabeth C Elliott Stephen J Cornell
author_sort	Elizabeth C Elliott
title	Dispersal polymorphism and the speed of biological invasions.
title_short	Dispersal polymorphism and the speed of biological invasions.
title_full	Dispersal polymorphism and the speed of biological invasions.
title_fullStr	Dispersal polymorphism and the speed of biological invasions.
title_full_unstemmed	Dispersal polymorphism and the speed of biological invasions.
title_sort	dispersal polymorphism and the speed of biological invasions.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/bcfbe397f919456c8054862b2e356025
work_keys_str_mv	AT elizabethcelliott dispersalpolymorphismandthespeedofbiologicalinvasions AT stephenjcornell dispersalpolymorphismandthespeedofbiologicalinvasions
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Dispersal polymorphism and the speed of biological invasions.

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