A presentation by Dr Brendan Ebner TropWATER, James Cook University

Showing 2 of 2 dates for this event.
Dates available from 23 Apr 2019 until 23 Apr 2019

Event date: 23Apr 2019

Tuesday 23 Apr 2019

Cairns Institute Building D003-003 (Ground floor meeting room)

  • 12:00 pm

James Cook University, Cairns QLD

Event date: 23Apr 2019

Tuesday 23 Apr 2019

ATSIP Seminar Room 030, Building 145

  • 12:00 pm

James Cook University, Townsville QLD

More information

Please join us for this Tropical Landscapes Joint Venture Seminar Series

Abstract

Freshwater crabs are relatively common and widespread in ephemeral waterways in Northern Australian landscapes, however, many species await study and even taxonomic description. Intensive survey work conducted on two cattle stations on the western edge of the Kimba Plateau on Cape York Peninsula, led to learnings of the ecology of arguably Australia’s most spectacular inland crab species, the Freshwater tiger crab, Austrothelphusa tigrina.

Surveys were used to enumerate populations of the Tiger Crab and the related Inland freshwater crab (Austrothelphusa wasselli), in relation to control and treatment sites with before and after cattle fencing of a creek. In total, 522 Freshwater tiger crabs and 269 Inland freshwater crabs were collected from the pre and post fence surveys. The presentation is used to convey differences in habitat use and size structure of the two crab species particularly at the mesohabitat scale. Cattle did not appear to be having a major impact on the crabs, however, a number of potentially threatening processes including invasive species were unveiled by this pioneering study. Preliminary conceptualisation of these threatening processes intersecting with the Tiger crab life cycle, is to be discussed.

Thimo Ruethers.

Biography

Dr Brendan Ebner is an aquatic ecologist with TropWATER, James Cook University. He specialises in researching the habitat use and behaviour of rare and threatened aquatic species. He combines field based study of faunal distribution and abundance with behavioural observations of individuals and assemblages under field and captive conditions. Through his work at TropWATER and CSIRO he has promoted the use of unusual animals in developing flagship species for aquatic systems and including remote freshwater ecosystems.

Enquiries

ATSIP Reception:

t – +61 7 4753 8500

eatsipadmin@csiro.au