Raffray New Guinea nasal purse
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Raffray New Guinea Noseband ( Peroryctes raffrayana ) |
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| ( Milne-Edwards , 1878) |
The Raffray New Guinea nasal sac ( Peroryctes raffrayana ) is a species of marsupial that is widespread in New Guinea.
Systematics and distribution
The species is divided into two subspecies. The nominate form, Peroryctes raffrayana raffrayana , is found in the Central New Guinea Mountains, in parts of the northern coastal mountains, in the north of the Vogelkop Peninsula and on Yapen , Peroryctes raffrayana rothschildi lives on the Huon Peninsula in northeast New Guinea. The art epithet honors the French diplomat, entomologist and explorer Achille Raffray .
features
The nominate form of the Raffray New Guinea nasal bag is dark brown, P. r. rothschildi more reddish brown in color. The peritoneum is white and clearly set off from the rest of the coloration of the animals. The tail is dark and largely hairless. The ears stand out clearly. The head body length is 27.5 to 39 cm, plus a 13.2 to 18 cm long tail. The weight is between 650 and 1100 g. Adult males are about 20% heavier than the females. Young animals of both subspecies are reddish in color and get darker with age.
Way of life
The animals live mainly in undisturbed primary forests at altitudes of 1,000 to 2,000 meters, but also occur in older secondary forests and overgrown gardens, and occasionally in lowland rainforests. They are missing in the savannas on the Fly . On the Huon Peninsula, P. r. rothschildi has already been detected at an altitude of 3900 meters. Trees are very small there. Otherwise the vegetation is characterized by heather, shrubs, tree ferns and tussok grasses. Raffray New Guinea nosebags are crepuscular and nocturnal and are most active between 7:00 p.m. and 2:00 a.m. The diet has not yet been studied in detail, but like other nasal purifiers the Raffray New Guinea nasal purse is certainly omnivorous . The fruits that are eaten by the animals include figs and those of the screw trees .
Reproduction
The females with young animals in the pouch have so far been caught and examined in the months of March, June, August, September, November and December. There is probably no specific breeding season and the animals reproduce all year round. The bag, which contains eight teats, opens to the rear. However, only one or two young animals are born per litter.
Danger
The IUCN lists the Raffray New Guinea noseband because of its wide distribution area as "Least Concern". In some areas the species is heavily hunted by humans. However, it is not yet known whether this has a decisive influence on the population of the animals.
Individual evidence
- ↑ a b c d Christopher Dickman: Family Peramelidae (Bandicoots and Echymiperas). in Don E. Wilson , Russell A. Mittermeier : Handbook of the Mammals of the World - Volume 5. Monotremes and Marsupials. Lynx Editions, 2015, ISBN 978-84-96553-99-6 , page 393
- ↑ Peroryctes raffrayana in the Red List of Endangered Species of the IUCN 2016. Posted by: Leary, T., Wright, D., Hamilton, S., Singadan, R., Menzies, J., Bonaccorso, F., Helgen, K. , Seri, L., Allison, A., Aplin, K., Dickman, C. & Salas, L., 2016. Retrieved August 22, 2018.