Electrophoretic Resolution of Species Boundaries in the Sminthopsis murina Complex (Dasyuridae)

1984 ◽  
Vol 32 (6) ◽  
pp. 823 ◽  
Author(s):  
PR Baverstock ◽  
M Adams ◽  
M Archer

Isozyme electrophoresis of 30 loci was used to characterize 52 individuals in 20 populations of the Sminthopsis murina complex. The populations fell into six groups within which there was genetic uniformity but among which there were extensive differences. These groups correspond to the species S. murina, S. ooldea, S. leucopus, S. dolichura, S. gilberti and S. caniventer.

1988 ◽  
Vol 41 (3) ◽  
pp. 315 ◽  
Author(s):  
M Adams ◽  
TR Reardon ◽  
PR Baverstock ◽  
CHS Watts

Allozyme electrophoresis of 35 loci in 156 specimens of Australian bats belonging to the Molossidae was used to help elucidate the species-level taxonomy of the group in Australia. The electrophoretic data support the current species-level taxonomy of Tadarida australis and Chaerephon jobensis. However, for specimens currently allocated to the genus Mormopterus, the electrophoretic data fail to support any previous species-level account. On the electrophoretic data, a minimum of five species of the genus Mormopterus occur in Australia. A single specimen of a sixth species, whose generic affinities are undetermined, was also found.


1987 ◽  
Vol 40 (4) ◽  
pp. 417 ◽  
Author(s):  
PR Baverstock ◽  
M Adams ◽  
T Reardon ◽  
CHS Watts

Two hundred and sixty two specimens of bats of the tribe Nycticeiini were sampled from throughout Australia, and their tissues subjected to aliozyme electrophoresis with a view towards delineating species boundaries. A total of 30 loci were resolved, detailed analysis of which revealed five species - greyii, sanborni, balstoni, orion and rueppellii. The specific boundaries recognized differ from ali previous treatments of Australian members, but are supported by the taxonomic arrangement proposed by Kitchener and Caputi (1985). The data also support separate generic recognition of rueppe/lii. Finally, the genetic data reveal a high level of population sub structuring in these bats.


1987 ◽  
Vol 40 (2) ◽  
pp. 163 ◽  
Author(s):  
M Adams ◽  
PR Baverstock ◽  
CHS Watts ◽  
T Reardon

Forty-four specimens of the Pipistrellus complex from Australia were analysed for 36 allozyme loci. The data show that four species were represented in the material, two of which are sympatric in the north, and two of which are allopatric in the south. The data are consistent with separate generic status for the two southern species.


1995 ◽  
Vol 18 (1) ◽  
pp. 61
Author(s):  
S.C. Donnellan ◽  
T.B. Reardon ◽  
T.F. Flannery

Allozyme variation at 19-34 loci is used in the present study to define species boundaries in Australian and Papuan New Guinean tube-nosed bats. Current systematic accounts for these bats are in part contradictory and do not provide an adequate basis for distinguishing the species. Results obtained from the allozyme electrophoretic analysis of 178 individuals show that there are a minimum of five species of Nyctimene and one of Paranyctimene in the region. A single species of Nyctimene was found in Australia and at least four species of Nyctimene in the north coastal ranges of Papua New Guinea. Paranyctimene was genetically uniform and was found in sympatry with up to three species of Nyctimene over most of its range. While the scientific names of several of the species were determined, the nomenclature of the remainder requires a morphological analysis of the available material, including type specimens.


1984 ◽  
Vol 32 (3) ◽  
pp. 363 ◽  
Author(s):  
M Adams ◽  
PR Baverstock ◽  
DA Saunders ◽  
R Schodde ◽  
GT Smith

The genetic and evolutionary relationships of the Australian cockatoos (excluding Probosciger) and of the cockatiel, Nymphicus hollandicus, were examined by the technique of isozyme electrophoresis. A cladistic analysis of data from 28 loci showed that Nymphicus is more closely related to cockatoos than to any ofthe non-cockatoos; accordingly Nymphicus should be included within the Cacatuinae, but in a monotypic tribe. The other genera form two well defined groupings. One comprises all of the white cockatoos (Cacatua) and the gang gang Callocephalon fimbriatum, and the other, the black cockatoos (Calyptorhynchus). Within the white cacatuine cockatoos there seem to be at least two minor groups. One, clearly indicated by the electrophoretic data, comprises the galah Cacatua roseicapilla and Australo-Papuan corellas, all of which have short plain crests and usually coloured periophthalmic skin. The other, neither denied nor confirmed biochemically, is a looser assemblage characterized by coloured up-curving crests and plain periophthalmic skin; it included the sulphur-crested cockatoo Cacatua galerita and the pink cockatoo Cacatua leadbeateri, and their allospecies on islands north of Australia. Isozyme electrophoresis of the loci examined in this study could not differentiate members of the Calyptorhynchus funereus superspecies, nor of the Cacatua tenuirostris-pastinator group of corellas. The results are therefore in accord with other studies that show that isozyme electrophoresis has limited application in elucidating species boundaries in birds.


1987 ◽  
Vol 40 (2) ◽  
pp. 143 ◽  
Author(s):  
M Adams ◽  
PR Baverstock ◽  
CHS Watts ◽  
T Reardon

The technique of allozyme electrophoresis is used in the present study to define species boundaries in Australian Eptesicus. Until 1976, only one species of Eptesicus (E. pumilus) was recognized in Australia. More recently, a further four species have been recognised (E. vulturnus, E. regulus, E. sagittula and E. douglasl). Results obtained from an allozyme electrophoretic analysis of 35 loci in 182 individuals show that there are a minimum of nine species of Eptesicus in Australia. Moreover, in some geographic areas, up to four species occur sympatrically. These results highlight the applicability and significance of allozyme electrophoresis for the dissection of species complexes.


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