The lemuroid ringtail possum (''Hemibelideus lemuroides''), also known as the lemur-like ringtail possum or the brushy-tailed ringtail, is a truly singular member of the ringtail possum group. It was once thought that they were

gliding possums Gliding is a recreational activity and competitive air sport in which pilots fly unpowered aircraft known as gliders or sailplanes using naturally occurring currents of rising air in the atmosphere to remain airborne. The word ''soaring'' is a ...

(''Petauroides volans''); ''Hemibelideus'' literally translates as "half-glider" (''belideus'' being a diminutive form of '' Petaurus'', meaning "glider"). They are similar to lemurs in their facial characteristics, with short snouts, large, forward-facing eyes and small ears, but similar to gliders in their musculo-skeletal adaptations to accommodate a leaping lifestyle. Their long, prehensile tail is a further adaptation to their arboreal habitat. Hemibelideus lemuroides -Queensland-8

It has a bushier tail when compared to other ringtails, and can be distinguished from the greater glider by its lack of gliding membrane and much shorter, hairless ears. It is a social possum, and is found in two main colour forms: the more common brownish-gray form, with a yellowish underbelly, and a rare white form, which occurred in the

Daintree Rainforest The Daintree Rainforest is a region on the northeast coast of Queensland, Australia, north of Mossman and Cairns. At around , the Daintree is a part of the largest continuous area of tropical rainforest on the Australian continent. The Daintr ...

and was last seen in 2005 in

Mount Lewis National Park Mount Lewis National Park is national park in both the Shire of Mareeba and Douglas Shire of Far North Queensland, Australia. It is adjacent to both Daintree National Park and Mount Spurgeon National Park. It is part of the Wet Tropics of Queens ...

, and in 2008 believed to have been nearly extinct. This possum is found in a small area of only about 300,000 hectares in total, between Ingham and Cairns in

Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , establishe ...

, Australia, and in an isolated population on the Mount Carbine Tableland, both within the

Wet Tropics World Heritage Area The Wet Tropics of Queensland World Heritage Site consists of approximately 8,940 km2 of Australian wet tropical forests growing along the north-east Queensland portion of the Great Dividing Range. The Wet Tropics of Queensland meets all f ...

. They are strictly arboreal and live in the high canopies of mature forests and favour particular tree types, usually found above 480–900 metres in elevation. Body length is 30–38 cm and tail length 30–35 cm, weighing between 810 and 1140 grams. Stephen Williams, researcher on climate change and biodiversity at the Centre for Tropical Biodiversity and Climate Change at James Cook University,

, stated that none were seen for several years after the

heat wave A heat wave, or heatwave, is a period of excessively hot weather, which may be accompanied by high humidity, especially in oceanic climate countries. While definitions vary, a heat wave is usually measured relative to the usual climate in the ...

s of 2005, when first a few were spotted (three were observed in the Daintree National Park, on

Cape York Peninsula Cape York Peninsula is a large peninsula located in Far North Queensland, Australia. It is the largest unspoiled wilderness in northern Australia.Mittermeier, R.E. et al. (2002). Wilderness: Earth’s last wild places. Mexico City: Agrupació ...

in 2009) then increasing numbers as they slowly recovered. Williams said in 2009 that there was no reason to believe the white variant would be impacted more than the brown. Then the next heatwave in struck in November 2018, when the Cairns region was hit by the highest temperatures since records began – even the highest mountain in the wet tropics reached 39 °C. Many tropical species cannot cope with extreme heat, not having evolved mechanisms to cool their bodies down, according to Williams; they can die from temperatures above 29 degrees. He said that over the past 15 years systematically species have started to disappear from the lower elevations, causing the total populations to decline as they are constrained to smaller areas at higher elevations. This puts pressure on creatures living in the mountain summits such as the lemuroid possum, which have nowhere else to go; the nearest rainforest is 1000 kilometres away.

References

External links

''Hemibelideus lemuroides'' on Animal Diversity Web
{{Taxonbar, from=Q672916 Possums Mammals of Queensland Mammals described in 1884 Species endangered by climate change