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Herpetofauna of a northern Australian monsoon rain forest: seasonal changes and relationships to adjacent habitats

Published online by Cambridge University Press:  10 July 2009

K. C. Martin
Affiliation:
Conservation Commission of the Northern Territory, PO Box 38496, Winnellie, Northern Territory 5789, Australia
W. J. Freeland
Affiliation:
Conservation Commission of the Northern Territory, PO Box 38496, Winnellie, Northern Territory 5789, Australia

Abstract

The herpetofauna of a floodplain monsoon rain forest in northern Australia is composed primarily of species from non rain forest habitats. The majority of frog species use rain forest as a seasonal refuge, and there is a marked increase in numbers during the dry season. Faunal richness lies within limits expected on the basis of the length of the dry season and species richnesses of non-Australian faunas. There are few lizard species and an abundance of frog species (none of which is a rain forest specialist) in comparison to rain forest herpetofaunas in other tropical regions. The impoverished lizard fauna, and the paucity of rain forest specialists may be because (a) seasonal invasion of rain forest by frogs prevents evolution of, or colonization by, specialists or (b) rain forest specialists may not have been able to cross semiarid habitats separating the Northern Territory from eastern Australian rain forests. The herpetofaunas of monsoon forests in Cape York Peninsula may provide a means of distinguishing between these hypotheses.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1988

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References

LITERATURE CITED

Brown, W. C. & Alcala, A. C. 1961. Populations of amphibians and reptiles in the submontane and montane forests of Cuernos de Negros, Philippine Islands. Ecology 42:628636.CrossRefGoogle Scholar
Cogger, H. G. 1975. Reptiles and amphibians of Australia. A. H. & A. W. Reed, Sydney, NSW.Google Scholar
Heatwole, H. & Sexton, O. J. 1966. Herpetofaunal comparisons between two climatic zones in Panama. American Midland Naturalist 75:4560.CrossRefGoogle Scholar
Inger, R. F. 1980. Densities of floor-dwelling frogs and lizards in lowland forests of south-east Asia and central America. American Naturalist 115:761770.CrossRefGoogle Scholar
James, C. & Shine, R. 1985. The seasonal timing of reproduction: a tropical-temperate comparison in Australian lizards. Occologia 67:464474.CrossRefGoogle ScholarPubMed
Kikkawa, J., Webb, L. J., Dale, M. B., Monteith, G. B., Tracey, J. G. & Williams, W. T. 1981. Gradients and boundaries of monsoon forests in Australia. Proceedings of the Ecological Society of Australia 11:3952.Google Scholar
Lloyd, M., Inger, R. F. & King, F. W. 1968. On the diversity of reptile and amphibian species in a Bornean rain forest. American Naturalist 102:497514.CrossRefGoogle Scholar
Morisita, M. 1962. Lδ index, a measure of dispersion of individuals. Research in Population Ecology 4:17.CrossRefGoogle Scholar
Mountford, M. D. 1962. An index of similarity and its application to dassificatory problems. Pp. 4350 in Murphy, P. W. (ed.) Progress in soil zoology.Google Scholar
Schuster, M. N. 1980. Origins and historical biogeography of eastern Australian rainforest Scincidae. Pp. 1721 in Banks, C. & Martin, A. (eds). Proceedings of the Melbourne Herpetologtcal Symposium. Zoological Board of Victoria.Google Scholar
Scott, N. J. 1976. The abundance and diversity of the herpetofaunas of tropical forest litter. Biotropica 8:4158.CrossRefGoogle Scholar
Toft, C. A. 1985. Resource partitioning in Amphibians and Reptiles. Copeia 1985:121.CrossRefGoogle Scholar
Webb, L. J. 1978. A general classification of Australian rain forests. Australian Plants 9:349363.Google Scholar