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Variability in Population Abundance is Associated with Thresholds between Scaling Regimes

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dc.contributor.author Wardwell, Donald
dc.contributor.author Allen, Craig R.
dc.date.accessioned 2010-01-21T20:42:32Z
dc.date.available 2010-01-21T20:42:32Z
dc.date.issued 2009 en_US
dc.identifier.uri https://hdl.handle.net/10535/5412
dc.description.abstract "Discontinuous structure in landscapes may result in discontinuous, aggregated species bodymass patterns, reflecting the scales of structure available to animal communities within a landscape. The edges of these body-mass aggregations reflect transitions between available scales of landscape structure. Such transitions, or scale breaks, are theoretically associated with increased biological variability. We hypothesized that variability in population abundance is greater in animal species near the edge of bodymass aggregations than it is in species that are situated in the interior of body-mass aggregations. We tested this hypothesis by examining both temporal and spatial variability in the abundance of species in the bird community of the Florida Everglades sub-ecoregion, USA. Analyses of both temporal and spatial variability in population abundance supported our hypothesis. Our results indicate that variability within complex systems may be non-random, and is heightened where transitions in scales of process and structure occur. This is the first explicit test of the hypothetical relationship between increased population variability and scale breaks." en_US
dc.language English en_US
dc.subject spatial analysis en_US
dc.subject birds en_US
dc.subject Everglades en_US
dc.subject scale en_US
dc.title Variability in Population Abundance is Associated with Thresholds between Scaling Regimes en_US
dc.type Journal Article en_US
dc.type.published published en_US
dc.type.methodology Case Study en_US
dc.coverage.region North America en_US
dc.coverage.country United States en_US
dc.subject.sector Wildlife en_US
dc.identifier.citationjournal Ecology and Society en_US
dc.identifier.citationvolume 14 en_US
dc.identifier.citationnumber 2 en_US
dc.identifier.citationmonth unknown en_US

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