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Fire frequency matters more than fire size: testing the pyrodiversity-biodiversity paradigm for at-risk small mammals in an Australian tropical savanna

Citation

Griffiths, AD and Garnett, ST and Brook, BW, Fire frequency matters more than fire size: testing the pyrodiversity-biodiversity paradigm for at-risk small mammals in an Australian tropical savanna, Biological Conservation, 186 pp. 337-346. ISSN 0006-3207 (2015) [Refereed Article]

Copyright Statement

Crown Copyright 2015 Published by Elsevier Ltd. All rights reserved.

DOI: doi:10.1016/j.biocon.2015.03.021

Abstract

Patch-mosaic burning is a widely accepted practical approach to managing biodiversity, whereby spatial and temporal diversity of fire is manipulated to benefit biotic diversity. We use simulation experiments based on stochastic population viability analysis to evaluate the implications of contrasting patch-mosaic burning scenarios for the population dynamics and risk of decline of four species of small mammals in northern Australia. Our results, based on models developed from detailed mark-recapture data, suggest that fire frequency has more influence on small-mammal persistence than fire extent. Risk of extinction increased for all four species when fire frequency exceeded once every five years. Under current ambient fire regimes most Australia tropical savannas burn more frequently and therefore seem to have unfavourable consequences for this faunal group and risk precipitating severe future declines.

Item Details

Item Type:Refereed Article
Keywords:fire, mammal, conservation, tropical
Research Division:Environmental Sciences
Research Group:Environmental Science and Management
Research Field:Wildlife and Habitat Management
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Flora, Fauna and Biodiversity at Regional or Larger Scales
Author:Brook, BW (Professor Barry Brook)
ID Code:107164
Year Published:2015
Web of Science® Times Cited:14
Deposited By:Plant Science
Deposited On:2016-03-07
Last Modified:2017-10-31
Downloads:0

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