Spatial scales of desert locust gregarization.

Spatial scales of desert locust gregarization. Research Abstract Details 

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Spatial scales of desert locust gregarization. Abstract Text:

M Collett,E Despland,S J Simpson,D C Krakauer,

Central to swarm formation in migratory locusts is a crowding-induced change from a "solitarious" to a "gregarious" phenotype. This change can occur within the lifetime of a single locust and accrues across generations. It represents an extreme example of phenotypic plasticity. We present computer simulations and a laboratory experiment that show how differences in resource distributions, conspicuous only at small spatial scales, can have significant effects on phase change at the population level; local spatial concentration of resource induces gregarization. Simulations also show that populations inhabiting a locally concentrated resource tend to change phase rapidly and synchronously in response to altered population densities. Our results show why information about the structure of resource at small spatial scales should become key components in monitoring and control strategies.

Spatial scales of desert locust gregarization. Publishing Authors By Initials

M Collett,E Despland,SJ Simpson,DC Krakauer,

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Spatial scales of desert locust gregarization. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Proceedings of the National Academy of Sciences of

VOLUME: 95

Page Numbers: 13052-5

Journal Abbreviation: Proc. Natl. Acad. Sci. U.S.A.

ISSN: 0027-8424

DAY: 27

MONTH: Oct

YEAR: 1998

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LANGUAGE: eng

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AFFILIATION: Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, United Kingdom.

Country: United States

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MEDLINETA: Proc Natl Acad Sci U S A

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