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Pacific Conservation Biology Pacific Conservation Biology Society
A journal dedicated to conservation and wildlife management in the Pacific region.
RESEARCH ARTICLE

Quality not quantity: conserving species of low mobility and dispersal capacity in south-western Australian urban remnants

Leanda Denise Mason A C , Grant Wardell-Johnson A and Barbara York Main B
+ Author Affiliations
- Author Affiliations

A Department of Environment and Agriculture, Curtin University, PO Box U1987, Bentley, WA 6845, Australia.

B School of Animal Biology, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia.

C Corresponding author. Email: leanda.denise.mason@gmail.com

Pacific Conservation Biology 22(1) 37-47 https://doi.org/10.1071/PC15044
Submitted: 23 November 2015  Accepted: 9 February 2016   Published: 11 March 2016

Abstract

Urban remnant vegetation is subject to varying degrees of disturbance that may or may not be proportional to the size of the patch. The impact of disturbance within patches on species with low mobility and dispersal capabilities was investigated in a survey targeting nemesiid species of the mygalomorph spider clade in the Perth metropolitan area, south-western Australia. Nemesiid presence was not influenced by patch size, but presence did negatively correlate with higher degrees of invasive grass and rabbit disturbance. Further, patch size was significantly positively correlated with degree of disturbance caused by rabbits. Compared with quadrats, patches were not as effective as sample units in determining the impact of disturbance on nemesiid presence.

Additional keywords: conservation planning, fragmented landscapes, mygalomorph spider, urbanisation.


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