Macropus giganteus

Poole, W. E.

doi:10.2307/3504005

Cited by 22 publications

(21 citation statements)

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“…M. giganteus is also one of the largest and most commonly observed macropod species, having a wide and almost continuous distribution down the east coast of Australia, where annual rainfall is more than 250 mm (Figure 1; Poole, 1982). Two subspecies are recognized, based on differences in skull morphology and pelage; M. g. giganteus from mainland Australia (QLD, NSW, SA and VIC), and M. g. tasmaniensis from northeast Tasmania (TAS) (Figure 1; Kirsch and Poole, 1972).…”

Section: Introductionmentioning

confidence: 99%

Intraspecific variation, sex-biased dispersal and phylogeography of the eastern grey kangaroo (Macropus giganteus)

2003

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Genetic information has played an important role in the development of management units by focusing attention on the evolutionary properties and genetics of populations. Wildlife authorities cannot hope to manage species effectively without knowledge of geographical boundaries and demic structure. The present investigation provides an analysis of mitochondiral DNA and microsatellite data, which is used to infer both historical and contemporary patterns of population structuring and dispersal in the eastern grey kangaroo (Macropus giganteus) in Australia. The average level of genetic variation across sample locations was one of the highest observed for marsupials (h ¼ 0.95, H E ¼ 0.82). Contrary to ecological studies, both genic and genotypic analyses reveal weak genetic structure of populations, where high levels of dispersal may be inferred up to 230 km. The movement of individuals was predominantly male-biased (average N e m ¼ 22.61, average N f m ¼ 2.73). However, neither sex showed significant isolation by distance. On a continental scale, there was strong genetic differentiation and phylogeographic distinction between southern (TAS, VIC and NSW) and northern (QLD) populations, indicating a current and/or historical restriction of gene flow. In addition, it is evident that northern populations are historically more recent, and were derived from a small number of southern founders. Phylogenetic comparisons between M. g. giganteus and M. g. tasmaniensis indicated that the current taxonomic status of these subspecies should be revised as there was a lack of genetic differentiation between the populations sampled.

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Section: Introductionmentioning

confidence: 99%

Intraspecific variation, sex-biased dispersal and phylogeography of the eastern grey kangaroo (Macropus giganteus)

2003

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“…Therefore, because both forms were recorded at Cement Mills, Bartholomai (1977) suggested that the assemblage may have been time averaged, with the accumulation possibly occurring during both Pleistocene and Recent times. However, the dwarfing hypothesis is poorly tested (Dawson, 2006) and a growing number of physically dated Pleistocene sites (e.g., Lake Victoria, Wellington Caves, Main Fossil Chamber, Lancefield Swamp) (Poole, 1982;Dawson and Flannery, 1985;Reed and Bourne, 2000;Dawson, 2006) are beginning to demonstrate that the Pleistocene contemporaneity of both forms was actually genuine and not simply an artefact of temporal mixing. Similarly, Bartholomai (1977) also noted the co-occurrence at Cement Mills of small-and large-sized marsupial 'tapirs' (Palorchestes spp.).…”

Section: Cement Mills Gorementioning

confidence: 98%

New U/Th ages for Pleistocene megafauna deposits of southeastern Queensland, Australia

Price

Zhao

Feng

et al. 2009

Journal of Asian Earth Sciences

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“…Also, some animal species show seasonal reproductive behavior which has to be taken into consideration in any study of wild animal. It has been reported that the Northern great grey kangaroo (Macropus giganteus giganteus) may live up to 25 years in captivity and could weigh up to 85 kg [2].…”

Section: Introductionmentioning

confidence: 99%

Histological Description of the Testis, Epididymis and Ductus Deferens of the Northern Great Grey Kangaroo (Macropus giganteus giganteus)

Khamas¹,

Al-Tikriti²,

Albayati³

et al. 2014

J Cytol Histol

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The Tunica albuginea surrounding the testis of the great grey kangaroo was thick and there were large number of Leydig cells present in between the seminiferous tubules. These findings were the striking features among other histological findings of an 18 year old kangaroo which was kept in captivity in Los Angeles zoo all his life. Eighteen year old great grey kangaroo testes, epididymis and ductus deferens were collected and processed using standard histologic techniques. The animal was kept all his life in captivity in LA zoo. Two different stains were used to differentiate tissues and cells. Histological characteristics of all organs under study were found to be similar to other animal species of younger age with few striking exceptions. The Tunica albuginea was very thick and large number of Leydig cells was present between the seminiferous tubules. Animals in captivity with excellent care and veterinary services will continue to be fertile and actively producing sperms when compared to animals of the same age live in the wild.

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Macropus giganteus

Cited by 22 publications

References 0 publications

Intraspecific variation, sex-biased dispersal and phylogeography of the eastern grey kangaroo (Macropus giganteus)

Intraspecific variation, sex-biased dispersal and phylogeography of the eastern grey kangaroo (Macropus giganteus)

New U/Th ages for Pleistocene megafauna deposits of southeastern Queensland, Australia

Histological Description of the Testis, Epididymis and Ductus Deferens of the Northern Great Grey Kangaroo (Macropus giganteus giganteus)

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