Koalas at risk of death once seven-day temperatures rise beyond 27C
4 hours ago
- #wildlife-conservation
- #climate-change
- #koalas
- Koalas face higher death risk when 7-day average max temperature exceeds 27°C.
- Koala hospitalizations or deaths were 1.5 to 3.5 times more likely in weeks averaging above 30°C.
- Study used 11,862 koala admissions in NSW from 2000-2022, correlating with weather records.
- Inland NSW koalas are most exposed to high temperatures, risking local extinctions.
- Gunnedah's koala population is functionally extinct, with remaining animals infertile.
- Koalas use strategies like concentrated urine, tree hugging, and panting to cope with heat.
- Heat causes dehydration, appetite loss, and reduced leaf moisture, making survival difficult.
- Water stations, shade structures, and habitat restoration are suggested conservation measures.
- Eucalyptus trees with higher protein and lower toxins are being bred as nutritional refuges.
- Shady, non-food trees are crucial for koalas to find cooler spots during hot weather.