Extinction‐Colonization Dynamics and Host‐Plant Choice in Butterfly Metapopulations
نویسندگان
چکیده
منابع مشابه
Extinction-colonization dynamics and host-plant choice in butterfly metapopulations.
Species living in highly fragmented landscapes often occur as metapopulations with frequent population turnover. Turnover rate is known to depend on ecological factors, such as population size and connectivity, but it may also be influenced by the phenotypic and genotypic composition of populations. The Glanville fritillary butterfly (Melitaea cinxia) in Finland uses two host-plant species that...
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Little is known about the connection between demography and dispersal in metapopulations. The meta-analysis of the population time series of five butterfly species indicated that (meta)population dynamics are driven by density-dependent factors. Inter-specific comparison reveals a significant inverse relationship between population growth rate and the magnitude of dispersal distance. As the ran...
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Structured populations are of particular interest when discussing disease dynamics. A common approach is to consider metapopulations: a group of coupled, well-mixed patches (also called (sub)populations or households). Two, frequently used ways to realize coupling are to introduce between-patch contact rates and to allow migration. Although these two ways describe different real-life situations...
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Metapopulation theory provides a framework for understanding population persistence in fragmented landscapes and as such has been widely used in conservation biology to inform management of fragmented populations. However, classical metapopulation theory [Levins, R. (1970) Lect. Notes Math. 2, 75-107] ignores metapopulation structure and local population dynamics, both of which may affect extin...
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Subspecies are commonly used taxonomic units to formally describe intraspecific geographic variation in morphological traits. However, the concept of subspecies is not clearly defined, and there is little agreement about what they represent in terms of evolutionary units, and whether they can be used as reliably useful units in conservation, evolutionary theory and taxonomy. We here investigate...
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ژورنال
عنوان ژورنال: The American Naturalist
سال: 2001
ISSN: 0003-0147,1537-5323
DOI: 10.1086/321985