Assessing endemism at multiple spatial scales with an example from the Australian vascular flora Laffan, Shawn en_US Crisp, Michael en_US 2021-11-25T13:09:57Z 2021-11-25T13:09:57Z 2003 en_US
dc.description.abstract Aim To develop an approach for assessing the spatial scale of centres of endemism among species level data. Location Australia. Methods Endemism is inherently scale dependent. Therefore, the Corrected Weighted Endemism (CWE) index used by Crisp et al. [J. Biogeogr. (2001)28:183] is extended to account for species samples in local neighbourhoods as a Spatial CWE index. This then allows an analysis of how the degree of endemism of a location (cell) changes with spatial scale. The quality of the Spatial CWE index results are assessed using three spatial randomizations at the species level with and without preserving species richness and distributional patterns. We show that CWE is equivalent to beta diversity and predict that it should show high rates of change around centres of endemism. Results Similar patterns to those found by Crisp et al. using a data set of vascular flora from Australia are retrieved, but the extent to which they are scale dependent is more easily identified. For example, the Central Australian centre discounted by Crisp et al. is identified when a three-cell radius neighbourhood is used. However, the level of endemism in this centre is no greater than in the margins of many of the coastal centres of endemism. Most of the identified centres of endemism are better than random at all scales and are increasingly so as the spatial scale increases. As predicted, the highest rate of change in Spatial CWE (beta diversity) is most often between zero- and one-cell radius neighbours in most centres of endemism. Main conclusions The explicit incorporation of geographical space in analyses allows for a greater understanding of the scale-dependence of phenomena, in this case endemism and beta diversity. en_US
dc.identifier.issn 0305-0270 en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.subject.other Biodiversity en_US
dc.subject.other endemism en_US
dc.subject.other spatial analysis en_US
dc.subject.other spatial scale en_US
dc.subject.other species richness en_US
dc.title Assessing endemism at multiple spatial scales with an example from the Australian vascular flora en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.description.notePublic Original inactive link: en_US
unsw.relation.faculty Science
unsw.relation.ispartofjournal Journal of Biogeography en_US
unsw.relation.ispartofpagefrompageto 511-520 en_US
unsw.relation.ispartofvolume 30 en_US
unsw.relation.originalPublicationAffiliation Laffan, Shawn, Biological, Earth & Environmental Sciences, Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Crisp, Michael en_US School of Biological, Earth & Environmental Sciences *
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