AnAge entry for Didelphis aurita. Classification (HAGRID: ). Taxonomy Genus: Didelphis; Species: Didelphis aurita; Common name: Big-eared opossum . Didelphis aurita was long considered a subspecies of Didelphis marsupialis, however recent DNA evidence places Didelphis aurita as its own species. Parasitol Res. Jan;(1) doi: /s Epub Dec 1. Identification of opossums Didelphis aurita (Wied-Neuweid, ).

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Population monitoring and demographic analyses of Didelphis may be of fundamental importance to understand community structure, especially in disturbed areas, where they may reach very large population sizes.

Reproduction Reproduction in D.

Didelphis aurita – Vertebrate Collection | UWSP

The proportion of females recaptured after weaning l x was small in all cohorts Tab. Population dynamics of four marsupials and its relation to resource production in the Atlantic forest in Southeastern Brazil. Ingested vertebrates include rufous-bellied thrushesthe snake Liotyphlops beui ayrita, southeastern four-eyed opossumsfish and other small mammals.


There aurta activity period was the first hours of the night. The average litter size in eastern Columbia is 6.


Reproductive value increased to the third or fourth age classes, after which it declined Fig. Accessed February 11, at http: ADW doesn’t cover all species in the world, nor does it include all the latest scientific information about organisms we describe.

Survival variation within and between functional groups of small mammal, the African multimammate rat Mastomys natalensis. Journal of Zoology The population dynamics of D. Adult males range from 1, to 1, grams during the reproductive season.

Subgenus Caluromys Bare-tailed woolly didelhpis C. Didelphis aurita big-eared opossum Facebook. Mammal Review 5 3: Age structure of two marsupial species in a Brazilian restinga.

Studies on Neotropical Fauna and Environment 29 4: John Hopkins University Press. Sex ratio in the pouch was 1: Journal of Zoology Studies aaurita Neotropical Fauna and Environment In fragmented forest areas, specifically where large predators are absent, species of Didelphis tend to increase in abundance.

Didelphis aurita – Wikipedia, la enciclopedia libre

Mortality was negatively correlated with reproductive value, aurta the third hypothesis that high mortality rates reduce the contribution to future generations. They have yolk-sac placentas.


These details are fundamental for understanding life-history strategies, ecology and persistence of populations. If a male is placed with a female that is not in estrous, she becomes aggressive, but the male does not return her attacks Nowak The longest lived individual survived days 20 months.

Age structure of two didelphhis species in a Brazilian restinga. Bishop’s slender opossum M.

Demographic window to aging in the wild: Fecundity was inversely correlated with survival, reproductive value was inversely correlated with mortality and residual reproductive value was inversely correlated with fecundity. Opossums are solitary and antisocial animals and usually avoid one another or act aggressively.

In other words, Central and South America.