---
title: "Uluru Desert Plant Dieback Event Studied"
url: https://newscentral.site/uluru-desert-plant-dieback-event-studied/
language: en
publisher: "News Central Site"
section: "Science"
published: 2026-10-27T09:00:01.000Z
updated: 2026-10-27T10:47:56.412Z
id: b89b3cc1-9be1-4364-a12d-5244e3dff3f6
source: "Phys.org https://phys.org/news/2026-10-anangu-traditional-owners-scientists-mass.html"
attribution: "Link to https://newscentral.site/uluru-desert-plant-dieback-event-studied/ and name News Central Site when you quote or summarize this story."
---

# Uluru Desert Plant Dieback Event Studied

A research collaboration between Anangu traditional owners and plant scientists has analyzed physiological traits that allowed some desert plants to survive a mass dieback event in Australia's Uluru-Kata Tjuta National Park from 2018 to 2019.

A groundbreaking research collaboration between the traditional owners of Uluru, the Anangu people, and plant scientists has shed light on the physiological traits that allowed some desert plants to survive a devastating mass dieback event in Australia.

The event, which occurred from 2018 to 2019, was a record-breaking hot drought that caused widespread plant mortality in Uluru-Kata Tjuta National Park. The extreme weather conditions had a profound impact on the ecosystem, prompting concerns among the Anangu people about the long-term consequences for their cultural heritage.

The research project brought together the expertise of Anangu traditional owners and Western plant scientists to investigate the responses of desert plants to extreme heat and drought. According to Jay Nicholson, coauthor of the study, "Anangu were concerned about these impacts and wanted to know why important plants were dying."

As part of the collaborative effort, the research team surveyed nine species of desert plants during both mild-temperature spring seasons and extreme-temperature summer seasons, measuring a range of physiological traits for each species. The focus was on keystone species chosen by the Anangu people that are essential for food, habitat, and tool-making, including wanari (Acacia aneura), tjanpi (Triodia pungens), and kurkara (Allocasuarina decaisneana).

The study analyzed various physiological traits of these species to determine why some were more likely to survive extreme weather than others.

Leaf measurements, leaf water content, and leaf carbon-nitrogen ratio were among the factors assessed in order to evaluate their impact on survival rates.

Researchers found that plants using drought-tolerance strategies tended to have higher dieback rates compared to those employing drought-avoidance strategies.

Drought-tolerant species can continue growing during dry periods but risk severe dehydration under extreme conditions, whereas drought-avoiding species conserve water by reducing growth, though prolonged drought can exhaust carbon reserves and increase mortality risk.

The trait that best predicted dieback severity was the maintenance of leaf relative water content, a component of drought avoidance.

The harsh conditions of the desert have led many to assume that plants adapted to these environments are naturally resilient to heat and drought. However, research suggests this is not always the case.

When extreme temperatures and drought occur simultaneously, even plants with adaptations can be vulnerable to mass mortality. This phenomenon has been observed in areas where both drought-tolerant and drought-avoiding strategies have failed.

The collaboration between Anangu traditional owners and scientists on the Uluru project has shed light on the importance of working together to understand environmental issues. By combining Western knowledge of plant physiology with Anangu expertise, researchers have gained a deeper understanding of the complex relationships between plants, fire, and landscape change.

The study highlights the potential benefits of community-led conservation efforts, such as cultural burning and community plant nurseries. These initiatives not only help restore culturally significant plants but also maintain connections to traditional knowledge and practices.

Reducing the impact of drought-driven dieback will ultimately require a comprehensive approach that addresses the root causes of climate change.

A comprehensive approach is needed to address the root causes of climate change and reduce its impact on drought-driven dieback at Uluru. This involves understanding the physiological strategies employed by different plant species in response to extreme weather conditions.

Research has shown that ecological and culturally significant Australian desert plants exhibit varying mortality rates following a hotter drought. The study's findings highlight the importance of considering these differences when developing conservation strategies for the region.

---
Source: [Phys.org](https://phys.org/news/2026-10-anangu-traditional-owners-scientists-mass.html)  
Published by News Central Site: https://newscentral.site/uluru-desert-plant-dieback-event-studied/