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There is a critical weight range for Australia's declining tropical mammals

Murphy, Brett (2014). There is a critical weight range for Australia's declining tropical mammals. Global Ecology and Biogeography,23(9):1058-1061.

Document type: Journal Article
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IRMA ID 75039815xPUB915
Title There is a critical weight range for Australia's declining tropical mammals
Author Murphy, Brett
Journal Name Global Ecology and Biogeography
Publication Date 2014
Volume Number 23
Issue Number 9
ISSN 1466-822X   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-84905915571
Start Page 1058
End Page 1061
Total Pages 4
Place of Publication United Kingdom
Publisher Wiley-Blackwell Publishing Ltd.
HERDC Category C1 - Journal Article (DIISR)
Abstract Many mammals in Australia's tropical north are in severe decline, yet understanding of the drivers of this decline is remarkably limited. Recently, Fisher et al. (Global Ecology and Biogeography, 2014, 23, 181−190) examined the traits that are associated with declining marsupial species in northern Australia. They concluded that, in this region, declines are most pronounced in the smallest species (those with the lowest body mass). This is in strong contrast to the significant declines that occurred earlier in central and southern Australia before the mid 20th century, which were most pronounced in medium-sized species, the so-called ‘critical weight range’ (35−5500 g). Here we show that Fisher et al. have misinterpreted their dataset; in northern Australia, the pattern of mammal decline in relation to body mass is remarkably similar to that in central and southern Australia, with mammal decline strongly concentrated in the critical weight range, suggesting fundamentally similar drivers between north and south.
Keywords Critical weight range
extinction
feral cat
mammal
marsupial
predation
red fox
rodent
DOI http://dx.doi.org/10.1111/geb.12173   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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