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white eared opossum

white eared opossum
: Hernan Tolosa (saguzar) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1095 W: 72 N: 1394] (7202)
: Animals
: 2006-01-27
: Mammals
: Zenith 12 XP, Tair 300mm
Exposure: f/8, 1/250
: Argentinian Mammals [view contributor(s)]
: 2006-02-08 15:26
: 4749
: 2
[Note Guidelines]
D. albiventris is a small mammal with black fur covering the majority of the body. The face is covered with black and white guard hairs, predominately white.
Breeding interval
These animals probably breed once or twice annually.
Breeding season
Breeding occurs in the rainy season.
Number of offspring
6 (average)
Age at sexual or reproductive maturity (female)
9 months (average)
Information on mating systems is not known. However, males of this genus are thought to be intollerant of and aggressive to one another, suggesting that females might not have the opportunity to mate with more than one male. (Nowak, 1999)
Didelphis albiventris reproduction is seasonal, but varies according to rainfall patterns. Reproduction occurs from September through May. Offspring in this genus are born very small and undeveloped. The offspring develop in the pouch of females for approximately 46 days. (Nowak, 1999; Talamoni and Dias, 1999)
The average litter size of D. albiventris is six. The size of the litter is dependent upon the age of the mother and the stage of lactation. Females become sexually mature at nine months. (Tyndale-Biscoe and Mackenzie, 1976)

No information found on the lifespan of D. albiventris. However, within the genus. lifespan seems to fairly short. Females of the related species D. virginiana only reproduce for two seasons, and very few of that species reach more than three years of age. Although D. albiventris may live somewhat longer, it is not likely that they have a really long life. (Nowak, 1999)
Didelphis albiventris is a nocturnal animal. During the day, these creatures find shelters to sleep in trees and other structures.
D. albiventris is an omnivorous species. During fecal analysis, scientists found invertebrates in their diet. The invertebrates consisted mainly of insects. Fruits, seeds, and vertebrates were also found to be a part of the diet of these animals. (Caceres, 2002)
One of the vertebrates consumed by D. albiventris is the pitviper Bothrops jararaca. One study showed how D. albiventris systematically attack these snakes. The opossum would kill the snake with a bite in the neck or head region. (Ermelinda Oliveira and Tadeu Santori, 1999)
Didelphis albiventris is not protected under CITES or IUCN

Data from:http://animaldiversity.ummz.umich.edu

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Critique [ ] 
Thread Starter
To marmottelolo: marsupialsaguzar 1 02-10 14:55

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bonjour hernan
dommage qu'elle soit un peu sombre car la nettet semble bonne,peut tre que tu aurait pu l'eclaicir un peu!

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