Comment on a research note reporting new populations of the northern quoll in Western Australia

2016 ◽  
Vol 38 (1) ◽  
pp. 124 ◽  
Author(s):  
M. Westerman ◽  
P. A. Woolley
Keyword(s):  
Mitochondrial Dna ◽  
Gene Flow ◽  
Western Australia ◽  
Dna Sequences ◽  
Research Note ◽  
Range Extension ◽  
Maternal Gene

The recent report by Turpin and Bamford (2015) notes a range extension for northern quolls in the Pilbara Bioregion of Western Australia. Mitochondrial DNA sequences derived from five scats show that the new individuals nest within a clade containing all other Pilbara animals. Northern quolls from the Pilbara Bioregion are genetically distinct from congeners from the Kimberley Bioregion. We note that there is no evidence for maternal gene flow between these two regions.

Inferring population connectivity across the range of the purple-crowned fairy-wren (Malurus coronatus) from mitochondrial DNA and morphology: implications for conservation management

2012 ◽  
Vol 60 (3) ◽  
pp. 199 ◽  
Author(s):  
Anja Skroblin ◽  
Robert Lanfear ◽  
Andrew Cockburn ◽  
Sarah Legge
Keyword(s):  
Mitochondrial Dna ◽  
Gene Flow ◽  
Dna Sequences ◽  
Genetic Divergence ◽  
Conservation Management ◽  
Habitat Degradation ◽  
Morphological Difference ◽  
Population Connectivity ◽  
Isolated Populations ◽  
The Impact

Knowledge of population structure and patterns of connectivity is required to implement effective conservation measures for the purple-crowned fairy-wren (Malurus coronatus), a threatened endemic of northern Australia. This study aimed to identify barriers to dispersal across the distribution of M. coronatus, investigate the impact that the recent declines may have on population connectivity, and propose conservation actions to maintain natural patterns of gene flow. Analysis of mitochondrial DNA sequences from 87 M. coronatus identified two phylogenetic clusters that corresponded with the phenotypically defined western (M. c. coronatus) and eastern (M. c. macgillivrayi) subspecies. The genetic divergence between these subspecies was consistent with isolation by a natural barrier to gene flow, and supports their separate conservation management. Within the declining M. c. coronatus, the lack of genetic divergence and only slight morphological difference between remnant populations indicates that populations were recently linked by gene flow. It is likely that widespread habitat degradation and the recent extirpation of M. c. coronatus from the Ord River will disrupt connectivity between, and dynamics within, remnant populations. To prevent further declines, conservation of M. coronatus must preserve areas of quality habitat and restore connectivity between isolated populations.

MITOCHONDRIAL DNA VARIATION AND MATERNAL GENE FLOW AMONG HUMPBACK WHALES OF THE SOUTHERN HEMISPHERE

1998 ◽  
Vol 14 (4) ◽  
pp. 721-737 ◽  
Author(s):  
C. S. Baker ◽  
L. Florez-Gonzalez ◽  
B. Abernethy ◽  
H. C. Rosenbaum ◽  
R. W. Slade ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Gene Flow ◽  
Southern Hemisphere ◽  
Humpback Whales ◽  
Dna Variation ◽  
Maternal Gene

A new population of the northern quoll (Dasyurus hallucatus) on the edge of the Little Sandy Desert, Western Australia

2015 ◽  
Vol 37 (1) ◽  
pp. 86 ◽  
Author(s):  
Jeff M. Turpin ◽  
Mike J. Bamford
Keyword(s):  
Mitochondrial Dna ◽  
Western Australia ◽  
Dna Analysis ◽  
Species Range ◽  
Range Extension ◽  
Sandy Desert ◽  
Mitochondrial Dna Analysis

A fauna survey was conducted within the Throssell and Broadhurst Ranges in the Little Sandy Desert Bioregion of Western Australia during August and September 2012. The endangered northern quoll (Dasyurus hallucatus) was recorded from two distinct locations of similar habitat: deep dissected rocky gorges containing caves and permanent waterholes. One individual was photographed by a motion-sensitive camera and several scats were collected, with mitochondrial DNA analysis confirming the identification. These records represent a significant range extension (~200 km) and due to habitat restrictions are likely to represent the very eastern extreme of the species’ range.

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