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Is there confusion over what is meant by 'open population'?

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Show simple item record Johnson, Mark en 2009-10-27T16:05:50Z en 2009-10-27T16:05:50Z en 2005 en
dc.identifier.citation Johnson, M. P. 2005. Is there confusion over what is meant by 'open population'? Hydrobiologia 533, 333-338. en
dc.identifier.uri en
dc.description.abstract Marine species possessing widely dispersing larvae are often considered to have open populations. However, two concepts are covered by the phrase 'open population'. One concept stresses the supply of recruits from outside the local population (genetically open) while the alternative use describes situations where recruitment rate is independent of the local population size (demographically open). These two concepts are not necessarily equivalent. A review of recent literature suggests that there is no consensus on whether a demographic or genetic concept is associated with the use of the phrase 'open population'. The different meanings of open population are never formally acknowledged. Explicit recognition of the different concepts of openness would remove an ambiguity from the literature and may aid communication between disciplines. Processes in natural populations, such as gregarious settlement and homing behaviour, are more clearly described by distinguishing between demographic and genetic degrees of openness. Changes in spatial scale will affect the degree of population openness. However, demographic and genetic aspects of population structure will not necessarily respond in the same ways to changes in scale. This provides further support for the explicit separation of genetic and demographic concepts of openness. en
dc.format application/pdf en
dc.language.iso en en
dc.publisher Springer Verlag en
dc.subject Larvae en
dc.subject Demographic en
dc.subject Genetic en
dc.subject Definitions en
dc.subject Models en
dc.subject.lcsh Marine biology en
dc.subject.lcsh Larvae en
dc.title Is there confusion over what is meant by 'open population'? en
dc.type Article en
dc.local.publishedsource en
dc.description.peer-reviewed peer-reviewed en

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