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- Red list of ecosystems
- Shrub encroachment as a legacy of native mammal decline
- Foraging and habitat ecology of the yellow-tailed black-cockatoo
- Tackling prey naïveté in Australia’s threatened mammals
- Biodiversity sampling in Strzelecki Regional Reserve
- The reintroduction of locally extinct mammals: The landscape ecosystem approach
- The persistence of common wombats in road impacted environments
- Temperate highland peat swamps on sandstone
- Cumberland plain woodland restoration
- Strategic adaptive management
- Limit to climate change adaption in floodplain wetlands - Macquarie Marshes
- Managing for ecosystem change in the greater blue mountains world heritage area
- Adaptive management of Ramsar Wetlands
- Managing for biodiversity in boom and bust cycle environments
- Submission on Biodiversity Act Review
- Marine ecosystems
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Remote sensing and GIS
- Mangrove response to climatic variability
- Using radar satellite imagery to detect and monitor flooding in arid Australian wetlands
- Supporting continental retrieval of vegetation biophysical attributes
- The Injune Landscape Collaborative Project
- Tree species shifts in response to environmental change
- Regrowth mapping
- Regional biodiversity responses to climate change
- Will climate change affect the ecology of temporary lakes in Australia?
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- Changes to the Darling River and Menindee Lakes – past, present and future
- Lowbidgee wetlands of the Murray-Darling Basin - The Nimmie-Caira
- A stitch in time – synergistic impacts to platypus metapopulation extinction risk
- Tube fishway project
- National waterbird survey
- Eastern Australian waterbird survey
- Feather map of Australia
- Life history and dynamics of a platypus (Ornithorhynchus anatinus) population: four decades of mark-recapture surveys
- Adequacy of environmental assessment of the proposed Macquarie River pipeline to the city of Orange
- Increasing production from inland aquaculture in Papua New Guinea for food and income security
- Aquaculture and environmental planning group
- Understanding soil-related constraints on aquaculture production in the highlands of Papua New Guinea
- Improving technologies for inland aquaculture in Papua New Guinea (ACIAR Project FIS2014062)
- Drying of ancient Thirlmere Lakes caused by human activities
- Application of GIS and remote sensing to assess sustainable mariculture and protect conservation zones
- Improving the sustainability of rice-shrimp farming systems in the Mekong Delta, Vietnam
- A SWOT analysis of Papua New Guinea’s inland fisheries and aquaculture sectors
- Carbon and floodplain biota in the Macquarie marshes
- Micro-invertebrate community dynamics and flooding in the Macquarie marshes
- Just add water? The effectiveness of environmental flows during wetland vegetation restoration
- Application of motion sensing cameras as a tool for monitoring riparian fauna
- Captive or wild?
- Brolga and Sarus crane diet comparison
- Lake Brewster pelican banding
- Aquatic invertebrate strategies for coping with drought
- Submission on Draft Lake Eyre Basin Strategic Plan
- The Menindee Lakes Water Savings Project – an example of poor decision-making
- Flow-MER
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Terrestrial ecosystems
- Post-fire recovery of threatened ecological communities
- Environment Recovery Project: Australian bushfires
- Community stability of upland swamp vegetation
- An innovative approach to maximising catchment water yield in a changing climate
- Post-fire seed production in Hakea Gibbosa
- Managing fire regimes with thresholds to save threatened flora and fauna
- Stopping the toad
- Trophic cascades in NSW North Coast forests
- Individual hunting behavior in feral cats
- Mallee Ecosystem Dynamics
- Investigating artificial waterhole utilisation and management in north-eastern Botswana
- Investigating the spatial ecology, habitat use, behaviour, and ecosystem engineering of hippopotamus (Hippopotamus amphibius), a keystone species in the Okavango Delta and Chobe River, northern Botswana
- Does overgrazing reduce ecosystem functions
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- Platypus breeding
- Maximising establishment success in reintroduced populations
- PhD scholarship saving our species - patch value, viability and resilience
- PhD scholarship – mechanics of species irruptions
- Conservation ecology of Greater bilby: survival, reproductive success and movement ecology in a breeding sanctuary in NSW
- Scientia PhD scholarship - Identifying healthy burning practices for Australia’s threatened plant species
- Scientia PhD scholarship - Ecosystem restoration through rewilding
- Platypus population health and dynamics
- Tackling prey naiveté in Australia’s endangered mammals
- Testate amoebae: a new biomarker of climate change and human impact in peatlands
- Surface water dynamics as a function of climate and river flow data
- Multisensor integration for environmental flows
- Response of northern Australian mangroves to climatic variability
- Comparative effects of extreme heat on threatened desert mammals
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- Home
- About us
-
Our research
Conservation practice
- Water Information System for the Environment (WISE)
- Red list of ecosystems
- Shrub encroachment as a legacy of native mammal decline
- Foraging and habitat ecology of the yellow-tailed black-cockatoo
- Tackling prey naïveté in Australia’s threatened mammals
- Biodiversity sampling in Strzelecki Regional Reserve
- The reintroduction of locally extinct mammals: The landscape ecosystem approach
- The persistence of common wombats in road impacted environments
- Temperate highland peat swamps on sandstone
- Cumberland plain woodland restoration
- Strategic adaptive management
- Limit to climate change adaption in floodplain wetlands - Macquarie Marshes
- Managing for ecosystem change in the greater blue mountains world heritage area
- Adaptive management of Ramsar Wetlands
- Managing for biodiversity in boom and bust cycle environments
- Submission on Biodiversity Act Review
Remote sensing and GIS
- Mangrove response to climatic variability
- Using radar satellite imagery to detect and monitor flooding in arid Australian wetlands
- Supporting continental retrieval of vegetation biophysical attributes
- The Injune Landscape Collaborative Project
- Tree species shifts in response to environmental change
- Regrowth mapping
- Regional biodiversity responses to climate change
- Will climate change affect the ecology of temporary lakes in Australia?
Rivers and wetlands
- Changes to the Darling River and Menindee Lakes – past, present and future
- Lowbidgee wetlands of the Murray-Darling Basin - The Nimmie-Caira
- A stitch in time – synergistic impacts to platypus metapopulation extinction risk
- Tube fishway project
- National waterbird survey
- Eastern Australian waterbird survey
- Feather map of Australia
- Life history and dynamics of a platypus (Ornithorhynchus anatinus) population: four decades of mark-recapture surveys
- Adequacy of environmental assessment of the proposed Macquarie River pipeline to the city of Orange
- Increasing production from inland aquaculture in Papua New Guinea for food and income security
- Aquaculture and environmental planning group
- Understanding soil-related constraints on aquaculture production in the highlands of Papua New Guinea
- Improving technologies for inland aquaculture in Papua New Guinea (ACIAR Project FIS2014062)
- Drying of ancient Thirlmere Lakes caused by human activities
- Application of GIS and remote sensing to assess sustainable mariculture and protect conservation zones
- Improving the sustainability of rice-shrimp farming systems in the Mekong Delta, Vietnam
- A SWOT analysis of Papua New Guinea’s inland fisheries and aquaculture sectors
- Carbon and floodplain biota in the Macquarie marshes
- Micro-invertebrate community dynamics and flooding in the Macquarie marshes
- Just add water? The effectiveness of environmental flows during wetland vegetation restoration
- Application of motion sensing cameras as a tool for monitoring riparian fauna
- Captive or wild?
- Brolga and Sarus crane diet comparison
- Lake Brewster pelican banding
- Aquatic invertebrate strategies for coping with drought
- Submission on Draft Lake Eyre Basin Strategic Plan
- The Menindee Lakes Water Savings Project – an example of poor decision-making
- Flow-MER
Terrestrial ecosystems
- Post-fire recovery of threatened ecological communities
- Environment Recovery Project: Australian bushfires
- Community stability of upland swamp vegetation
- An innovative approach to maximising catchment water yield in a changing climate
- Post-fire seed production in Hakea Gibbosa
- Managing fire regimes with thresholds to save threatened flora and fauna
- Stopping the toad
- Trophic cascades in NSW North Coast forests
- Individual hunting behavior in feral cats
- Mallee Ecosystem Dynamics
- Investigating artificial waterhole utilisation and management in north-eastern Botswana
- Investigating the spatial ecology, habitat use, behaviour, and ecosystem engineering of hippopotamus (Hippopotamus amphibius), a keystone species in the Okavango Delta and Chobe River, northern Botswana
- Does overgrazing reduce ecosystem functions
-
Study with us
Postgraduate research projects
- Platypus breeding
- Maximising establishment success in reintroduced populations
- PhD scholarship saving our species - patch value, viability and resilience
- PhD scholarship – mechanics of species irruptions
- Conservation ecology of Greater bilby: survival, reproductive success and movement ecology in a breeding sanctuary in NSW
- Scientia PhD scholarship - Identifying healthy burning practices for Australia’s threatened plant species
- Scientia PhD scholarship - Ecosystem restoration through rewilding
- Platypus population health and dynamics
- Tackling prey naiveté in Australia’s endangered mammals
- Testate amoebae: a new biomarker of climate change and human impact in peatlands
- Surface water dynamics as a function of climate and river flow data
- Multisensor integration for environmental flows
- Response of northern Australian mangroves to climatic variability
- Comparative effects of extreme heat on threatened desert mammals
- Our Impact
- News
- Wild Deserts
- Flow-MER

Date: Tuesday, November 13, 2018
Project: Eastern Australian Waterbird Survey
Observer: John Porter
The final day of aerial survey for 2018 dawns clear and cool – we start early, hoping to beat the heat as we head into the Gwydir wetlands again to complete our counting. Our first count is along the main channel of the Gwydir River
Counting along the main channel of the Gwydir River
As we progress over the wetlands we encounter a team of OEH scientists monitoring waterbirds on the ground and give them a friendly wave from above

OEH scientists monitoring waterbirds on the Gwydir (Photo: Terry Korn)
Again we see the benefits of environmental “community” water as we fly across pockets of emerald green in an otherwise extremely dry landscape. There are moderate numbers of Egrets, Grey teal, Black duck, Pacific and White faced herons.
Waterbirds on the Gwydir near Westholme (Photo: Terry Korn)
Stubble bales awaiting collection on the edge of an irrigated field (Photo: Terry Korn)
Counting in the Gwydir wetlands near Westholme
Our counts on the Gwydir now complete, we gain altitude and head for the northern end of the Macquarie Marshes. We arrive at the marshes to find another delivery of environmental “community” water doing a great job of recharging parched wetlands and providing a refuge for aquatic biota in the surrounding dry landscapes.
We methodically work our way back and forth across the marshes but encounter only low numbers of waterbirds. Despite checking as many colonial nesting sites as we can, we can see no signs of breeding activity. This year we have seen very low numbers of birds breeding across the study area in Queensland, NSW, Victoria and South Australia.
Macquarie marshes community water flowing through a parched landscape (Photo: Terry Korn)
Macquarie marshes open water in dense reed beds (Photo: Terry Korn)

Macquarie marshes water spreading across floodplain (Photo: Terry Korn)
Counting over the Maquarie Marshes
Macquarie River at the southern extremity of the marshes (Photo: Terry Korn)
We complete our last transect, and wrap up the 2018 Waterbird and wetlands aerial survey field program. We owe a debt of gratitude to our Pilot (Tim Dugan NSW National Parks & Wildlife) and intrepid aerial observers (Terrry Korn, Stuart Halse & Andrea White) and to our new trainees for the year (Shannon Dundas, Terry Korodaj, Amelia Selles, Jason Higham, Karl Hillyard, Jody O’Connor and Heath Dunstan)
Thanks also to our funding partners in NSW Office of Environment & Heritage, South Australian Department of Environment, Water and Natural Resources, the Queensland Department of Environment and Heritage Protection, the Victorian Department of Environment, Land, Water & Planning , the Victorian Game Management Authority and the Murray Darling Basin Authority
Special thanks to Terry Korn, one of UNSW Aerial Survey’s longest serving waterbird observers, navigators and logistics advisors (Photo: John Porter)