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Phylogeography of Saproxylic and Forest Floor Invertebrates from Tallaganda, South-eastern Australia

Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520, USA
Present address: Department of Biology, University of Mississippi, University, MS 38677, USA
Department of Evolution, Ecology and Genetics, Research School of Biology, Australian National University, Canberra, ACT 0200, Australia
Australian Centre for Biodiversity, School of Biological Sciences, Monash University, Clayton, VIC 3800, Australia
Author to whom correspondence should be addressed.
Insects 2012, 3(1), 270-294;
Received: 3 January 2012 / Revised: 21 February 2012 / Accepted: 22 February 2012 / Published: 29 February 2012
(This article belongs to the Special Issue Phylogeographic Syntheses)
The interaction between physiogeographic landscape context and certain life history characteristics, particularly dispersal ability, can generate predictable outcomes for how species responded to Pleistocene (and earlier) climatic changes. Furthermore, the extent to which impacts of past landscape-level changes ‘scale-up’ to whole communities has begun to be addressed via comparative phylogeographic analyses of co-distributed species. Here we present an overview of a body of research on flightless low-mobility forest invertebrates, focusing on two springtails and two terrestrial flatworms, from Tallaganda on the Great Dividing Range of south-eastern Australia. These species are distantly-related, and represent contrasting trophic levels (i.e., slime-mold-grazers vs. higher-level predators). However, they share an association with the dead wood (saproxylic) habitat. Spatial patterns of intraspecific genetic diversity partly conform to topography-based divisions that circumscribe five ‘microgeographic regions’ at Tallaganda. In synthesizing population processes and past events that generated contemporary spatial patterns of genetic diversity in these forest floor invertebrates, we highlight cases of phylogeographic congruence, pseudo-congruence, and incongruence. Finally, we propose conservation-oriented recommendations for the prioritisation of areas for protection. View Full-Text
Keywords: biodiversity; dead wood; endemism; montane refuges; population genetics biodiversity; dead wood; endemism; montane refuges; population genetics
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Garrick, R.C.; Rowell, D.M.; Sunnucks, P. Phylogeography of Saproxylic and Forest Floor Invertebrates from Tallaganda, South-eastern Australia. Insects 2012, 3, 270-294.

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