Environmental manipulation to avoid a unique predator: Drinking hole excavation in the Agile Wallaby, Macropus agilis Ethology

J. S. Doody, R. Sims and M. Letnic
http://aerg.canberra.edu.au/cgi-bin/pubs_archive.cgi?target=G

Changes in the distribution and abundance of saltwater crocodiles (Crocodylus porosus) in the upstream, freshwater reaches of rivers in the Northern T

M. Letnic and G. Connors
Wildlife Research, 33, 7, 529-538,

Since they were declared a protected species in 1971, populations of saltwater crocodiles (Crocodylus porosus) have increased in the tidal rivers, freshwater swamps and marine waters of the Northern Territory. The recovery of the C. porosus population has been accompanied by an increase in the incidence of 'problem crocodiles' that represent a threat to people in freshwater and marine habitats. In this study, we examined the density and body-size structure of C. porosus populations in three freshwater rivers using a combination of data from spotlight and helicopter surveys conducted between the 1980s and 2005, and the inland extent of C. porosus using distribution records in the Northern Territory. Since the 1980s, the density of C. porosus in upstream, freshwater reaches of the Daly and Roper rivers has increased, as has the inland extent of C. porosus on the Daly River. Although C. porosus was not detected in spotlight surveys of the Victoria River, helicopter survey and anecdotal records indicate that C. porosus was present after 1989.
http://search.ebscohost.com/login.aspxdirect=true&db=fzh&AN=02010304799399534008&site=ehost-live

Draft conservation plan for the Daly Basin bioregion

Department of Infrastructure, Planning and Environment,

This draft plan is concerned with ensuring the protection of conservation values, such as providing breeding area, habitat and refuge for important wildlife populations, especially of fish, turtles, insects, waterbirds and crocodiles. The goal of this conservation plan is to ensure that the species, ecosystems and ecological processes present in the Daly Basin are adequately conserved.

This plan discusses the features of the Daly Basin bioregion; geology, soils, water, flora, fauna and the history of human occupation. The key threatening processes in the basin and the proposed mitigation measures are also detailed.

The informative conservation draft plan provides information on a large range of conservation issues within the study basin bioregion, also provided in the plan are control measures that have already been established and suggestions to further developing them.

Changes in the distribution and abundance of saltwater crocodiles (Crocodylus porosus) in the upstream, freshwater reaches of rivers in the NT

Authors: Mike Letnic, Greg Connors
Source: Wildlife Research; 33(7): 529-538; 2006
http://www.publish.csiro.au/nid/144/paper/WR05090.htm