Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/98747
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- Title
- Morphological dispersion of Rhytidoponera assemblages : the importance of spatial scale and null model
- Related
- Ecology, Vol. 85, No. 10 (2004), p.2728-2736
- DOI
- 10.1890/03-0741
- Publisher
- Ecological Society of America
- Date
- 2004
- FoR/RFCD Code(s)
-
060200 Ecology
- Author/Creator
- Nipperess, David P
- Author/Creator
- Beattie, Andrew J
- Description
- A series of spatially nested assemblages of Rhytidoponera operational taxonomic units (OTUs) (Formicidae: Hymenoptera) from Sturt National Park, New South Wales, Australia, were examined for patterns of dispersion in multivariate morphological space. Morphological overdispersion within an assemblage, relative to a null model, is hypothesized to be a result of the structuring influence of interspecific competition. We compared up to 45 observed assemblages, from across multiple spatial scales, to two null models. Meta-analysis of the null model analyses indicated a general trend to morphological overdispersion, particularly so at restricted scales. Larger scale assemblages were overdispersed relative to only one of the two null models, which we tentatively interpret as being indicative of different competition-driven mechanisms operating at different spatial scales. We also demonstrate that the observed assemblages represent a larger number of species groups than expected by chance, and that this pattern of phylogenetic overdispersion is closely related to the observed morphological patterns.
- Description
- 9 page(s)
- Subject Keyword
- 060200 Ecology
- Subject Keyword
- assembly rules
- Subject Keyword
- competition
- Subject Keyword
- ecomorphology
- Subject Keyword
- Formicidae
- Subject Keyword
- morphological dispersion
- Subject Keyword
- Rhytidoponera
- Subject Keyword
- Sturt National Park
- Subject Keyword
- New South Wales
- Subject Keyword
- Australia
- Resource Type
- journal article
- Organisation
- Macquarie University. Dept. of Biological Sciences
- Identifier
- http://hdl.handle.net/1959.14/98747
- Identifier
- ISSN:0012-9658
- Identifier
- mq-rm-2004020364
- Language
- eng
- Rights
- Copyright by the Ecological Society of America. Article published in Ecology, Vol. 85, No. 10, pp. 2728-2736 by David P. Nipperess and Andrew J. Beattie.
- Full Text
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