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Climate Change Causes Plant Dieback at Uluru-Kata Tjuṯa

Confirmed

Science Desk

In Short: Between 2018 and 2021, the most severe drought on record unfolded at Uluru-Kata Tjuṯa, exacerbating the impact of climate change.

Beyond Glaciers: Climate Change Kills Uluru's Desert Plants
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Using novel 360-degree imaging, scientists and Muṯitjulu Mala Rangers discovered that plant dieback, characterized by the death of leaves, shoots, or roots, covered hundreds of square kilometres within Uluru-Kata Tjuṯa National Park.

The dieback followed record-breaking heatwaves in 2019-2020, leading to mass mortality of robust plants such as kurkaṟa (desert oak), wanaṟi (mulga), and pukaṟa (desert heath myrtle).

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Between 2018 and 2021, the most severe drought on record unfolded at Uluru-Kata Tjuṯa, exacerbating the impact of climate change.

This week marks the 41st anniversary of the official handback of Uluru-Kata Tjuṯa to Aṉangu, who bring tens of thousands of years of accumulated knowledge to caring for these lands.

The invasive weed buffel grass is spreading rapidly through Uluru-Kata Tjuṯa, further threatening native plant species and the animals that depend on them.

Aṉangu Rangers and scientists found that plant species died at different rates following the hot drought, suggesting that water use during a drought might explain why some desert species are more likely to die than others.

The findings highlight the urgent need to address the impacts of climate change on this World Heritage-listed site and its unique biodiversity.

Pacific leaders and international delegates have been welcomed to Fiji for Pre-COP31, with a call for discussions to focus on protecting communities, livelihoods, and the ocean from the growing impacts of climate change.

Three key priorities were highlighted for the discussions: keeping the 1.5-degree goal within reach, ensuring climate finance reaches communities that need it, and giving the ocean the prominence it deserves in global climate negotiations.

What this adds

The research underscores the vulnerability of desert ecosystems to climate change and the importance of traditional knowledge in managing these impacts.

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