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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Age structure of two marsupial species in a Brazilian restinga.

Didelphis aurita – Wikipedia, la enciclopedia libre

Greene, ; Hagmann, Using information from other South American Didelphids like common opossumsfemales can have 2 to 3 litters per breeding didelphiw, with an average of 7. The ability of Didelphis aurita to climb may explain the high fruit occurrence in its diet Santori etal Survival variation within and between functional groups of small mammal, the African multimammate rat Mastomys natalensis.

Emmons, ; Greene, ; Mattison, In response to aurifa predator, big-eared opossums may act like their relative Virginia opossums and “play possum”, or feign death to fool a predator.

The decline in reproductive value at the senescent age class is due to the increased mortality at that time. Demographic window to aging in the wild: Santori etal found the Collared lizard Tropidurus torquatus to be their most frequent prey.


Didelphos differentiation between Neotropical black-eared opossums, Didelphis marsupialis and D. Therefore, females defend areas with sufficient resources and males seeking mates roam to find them. Biology and natural history of brazilian Atlantic forest small mammals. A second possibility is related to the reproductive strategy of marsupials, with little investment in gestation and a large investment in lactation.

Big-eared opossum

Adult males range from 1, to 1, grams during the reproductive season. Food habitats, home range and activity of Didelphis aurita Mammalia, Marsupialia in a forest fragment of southern Brazil. Studies on Neotropical Fauna and Environment 36 2: Big-eared opossums have prominent facial markings and a conspicuous black line down the center of their forehead. Spatial dynamics among didelphus not studied here may be an important component in the population turnover each year.

Lawrence, The American Society of Mammalogists, 47p. Studies on Neotropical Fauna and Environment36 2: Analysis of vertebrate populations. Diet and vertical space use of three sympatric opossums in a Aurota Atlantic forest reserve. Page last updated August 3, Also, the net reproductive rate R 0 tended to values below 1. The use of scanning electron microscopy allows the specific characterization of the species within this genus.

The fur at the base of their tail is about as long as their hind legs and is at least half black and half white; the black portion is sometimes longer.


Mammal Species of the World: Age specificity and ecological theory. To cite this page: Gray mouse opossum T.

Didelphis aurita was long considered a subspecies of Didelphis marsupialis, however recent DNA evidence places Didelphis aurita as its own species. It is found in ArgentinaBrazil and Paraguay. Thus, it was not possible to establish life tables for these two cohorts. Zeitschrift fur Saugetierkunde In the case of D.

Nogueira and Castro, Interactions between aroids and arboreal mammals aaurita the Brazilian Atlantic rainforest.

Birds, mammals and amphibians of Latin America”, ; Emmons, Diet composition of Metachirus nudicaudatus E. Frequency of movements of small mammals among Atlantic coastal forest fragments in Brazil. Females were used for life table construction and only females that were marked while young and still within the pouch were used, comprising eight cohorts: It looks like your browser does not have JavaScript enabled.

Kalinowski’s mouse opossum H. Cuhna and Vieira, ; Gentile, et al. Eisenberg and Redford, ; Gentile, et al.