dc.contributorUniversidade Federal de Goiás (UFG)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:19:37Z
dc.date.available2014-05-27T11:19:37Z
dc.date.created2014-05-27T11:19:37Z
dc.date.issued1998-10-01
dc.identifierEnvironmental Entomology, v. 27, n. 5, p. 1094-1101, 1998.
dc.identifier0046-225X
dc.identifierhttp://hdl.handle.net/11449/65527
dc.identifier2-s2.0-0006043662
dc.identifier7251053552637553
dc.description.abstractMacroecology evaluates the partitioning of physical space and resources among organisms through correlation among ecological variables, such as geographical range size and shape, body size, and population density, measured at large geographical and taxonomic scales. In this article, we analyzed the spatial patterns in worker body size and geographic range size for the 27 described species of honey ants, genus Myrmecocystus Wesmael, in the United States and Mexico, and especially the relationship between these 2 variables after statistically removing their spatial patterns. The 2 variables are correlated, but also displayed significant spatial patterns, as detected by trend surface and spatial autocorrelation analyses. After removing these spatial effects, worker body size and geographic range size were still positively correlated. The relationship, therefore, is not a consequence of spatial effects and it does follow Brown's model, which predicts that the geographic range size will have a positive slope on body size. In this model, the lower population densities caused by foraging activities and local territorial competition are associated with a large geographic range, avoiding stochastic extinction. Although this constraint in local population density does not necessarily hold for small organisms such as insects that could achieve high densities even in very small areas and patchy habitats, it may hold for social insects, especially ants, because of the local competition among colonies.
dc.languageeng
dc.relationEnvironmental Entomology
dc.relation1.661
dc.rightsAcesso restrito
dc.sourceScopus
dc.subjectBody size
dc.subjectGeographic range
dc.subjectHoney ants
dc.subjectMacroecology
dc.subjectMyrmecocystus
dc.subjectTrend surfaces
dc.titleHoney Ants (Genus Myrmecocystus) Macroecology: Effect of Spatial Patterns on the Relationship between Worker Body Size and Geographic Range Size
dc.typeArtículos de revistas


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