George Lukacs

An evaluation of ecological information on Australia’s northern tropical rivers and wetlands

The northern tropical river and wetland systems of Australia cover a vast and mostly remote area. Comparably little is known of wetland type, species diversity, ecological processes and ecosystem services. Systematic inventory and classification is lacking and research remains disparate in purpose and coverage. An integrated framework is used to evaluate results from three multidisciplinary studies across various scales to synthesise available knowledge relating to key ecological attributes across both the study region and within focus areas. The utility of geomorphic and hydrological classification at coarse scales is supported but the unavailability of biological data at corresponding and finer spatial and temporal scales constrains the potential for ecological inventory and classification utilising existing information. Future inventory and ecological studies across this and similar vast study areas need to consider the apriori development of a user-driven data framework and the development of specific investigatory tools to overcome technical and other barriers associated with the requirements of multi-scalar ecological studies.

Building global collaboration in tropical wetland research

This article was derived from a SWS symposium held in 2007 and describes research undertaken in the tropics and subtropics by partners in the Global Wetland Consortium. It explores the role of global collaboration in science and tropical wetlands and maps out a pathway for enhanced inter-change and exchange of information and practical experience. Whilst scientific initiatives for a range of earth systems have been previously been developed, a systematic and global research initiative for wetlands that crosses cultural, scientific and economic divides is not yet operational. One option when considering such initiatives is to investigate the utility of using the more than 1800 wetlands designated as internationally important under the Ramsar Convention as the basis of an integrated and multi-node field research and global observation program for detecting and even preempting ecological change in wetlands.