First-Ever Map of NSW Estuary Life Reveals Surprising Species Discoveries
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📰 The quick summary: Scientists and Indigenous rangers have created the first comprehensive biodiversity map of NSW estuaries using environmental DNA technology, revealing unexpected species like platypus in areas where they hadn’t been seen for years.
📈 One key stat: The survey detected 68 invasive species including cane toads spreading further south than previously known, highlighting the changing ecological dynamics in these vital coastal ecosystems.
💬 One key quote: “We were surprised to find platypus in places they had not been seen for years. We also identified elusive native species such antechinus and rakali, and 68 invasive or pest species including cane toads – spreading further south than previously thought.”
1️⃣ The big picture: Scientists partnered with Indigenous rangers from six language groups to conduct the first comprehensive biodiversity mapping of NSW estuaries using environmental DNA technology. They surveyed 34 estuaries to catalog all living species from microbes to mammals. This innovative approach allowed them to detect both native species in unexpected locations and track the spread of invasive species like cane toads. The resulting interactive map is now publicly available online, offering valuable data for authorities, scientists, and the general public to understand these vital ecosystems where rivers meet the sea.
2️⃣ Why is this good news: This groundbreaking collaboration between scientists and Indigenous rangers combines traditional ecological knowledge with cutting-edge DNA technology to protect critical coastal environments. The surprising discovery of platypus in areas where they were thought to have disappeared gives hope for conservation efforts. The comprehensive biodiversity database provides an essential baseline for measuring responses to extreme weather events and habitat restoration activities. By making this data freely accessible to everyone online, the project empowers communities to better understand and protect their local waterways. The research strengthens Indigenous rangers’ ability to monitor their Country independently in the future.
3️⃣ What’s next: Researchers plan to compare data collected following Tropical Cyclone Alfred to their baseline survey, helping identify which species were most affected by extreme weather. The project will continue supporting Indigenous groups in caring for their Country through two-way knowledge sharing. This biodiversity database will serve as a reference point for scientists and authorities responding to environmental impacts for decades.
Read the full story here: The Conversation – From surprise platypus to wandering cane toads, here’s what we found hiding in NSW estuaries
