The Basin Watering Strategy includes a target for waterbirds that seeks to increase their abundance and maintain current species diversity. Releasing water in the Murray-Darling Basin for environmental purposes is often aimed at supporting the breeding activities of waterbirds to sustain and expand their populations. We know broadly where waterbirds gather to breed in the Basin, and the kinds of water flows that are needed to support nesting and chick-rearing.
When we talked to water managers about waterbirds, they wanted to know more about the habitats that provide food for growing chicks and newly fledged juveniles, and how flows can boost and support these habitats. They also wanted more information about site choices, nest success and recruitment, and how best to manage nesting habitats.
As a result of these discussions we are investigating the influence of flow regimes on waterbird recruitment (chick to adulthood). We want to be able to maximise the recruitment of young waterbirds into the adult population, and this depends on the number of healthy chicks that fledge from each nesting colony. Breeding success relies on water managers protecting and maintaining nesting habitats between and during floods. We are focusing our attention on colonial-breeding waterbirds such as ibis and spoonbills because they are important species for water management, are easily surveyed, and have known breeding locations. Between them, they represent a range of feeding and nesting habitats, and are considered to be a reasonable model for other waterbirds in the Basin.
How our waterbird work fits within the Basin Plan:
The Waterbirds research program will help managers to identify, maintain or restore key habitats, and better understand the scale of habitats and environmental flows that are required for successful breeding, and for survival of juveniles and adults between breeding events. It will also produce practical information for better managing water, vegetation and feral animals, to ensure ‘event readiness’ at nesting sites during and between floods to maximise recruitment. The research will also identify key nesting habitats and foraging sites, and equip managers with the information they need to maintain or restore them.
You can see our Waterbird researcher Heather McGinness talking about her work as part of a community discussion on the importance of wetlands in the video below, as well as exploring stories featured in the RipRap Magazine: Thrive: nature, water and wellbeing.
Our MDB EWKR Waterbird Team:
Waterbird Theme Leader
|Dr McGinness is an Ecologist who conducts research aiming to inform sustainable natural resource management practices. With a background in riverine and floodplain landscape ecology, her interdisciplinary work integrates aquatic and terrestrial ecology in a range of agricultural, mixed and natural ecosystems. Research areas include the effects of changes in landuse, hydrology and flooding upon biodiversity and productivity; the ecological influence of variability and connectivity in river systems and their catchments; and the adaptive management and rehabilitation of ephemeral creeks, floodplains and wetlands in multi-use landscapes.
University of Canberra
|Ralph Mac Nally is a world leader in whole-of-catchment ecology. No other Australian has contributed so much to the understanding of summit-to-sea ecology as he by integrating thinking and fundamental research on terrestrial, freshwater, floodplain and estuarine ecosystems. He has led the seamless assimilation of large-scale experiments, extensive survey programs and sophisticated spatial modelling to erect and test hypotheses on the factors that control patterns of biodiversity and ecological processes in ways that have been intractable previously. Mac Nally has developed these approaches to understand and predict the consequences of climate and land-use change at continental and decadal scales.
University of NSW
|Richard is one of Australia’s best known freshwater ecologists. Richard is currently Director of the Centre for Ecosystem Science at the University of NSW where he continues to undertake research on river and wetland ecology, waterbirds and the impacts of management.|