Morphological Variation in Populations of Eulemur albocollaris and E. fulvus rufus
نویسندگان
چکیده
منابع مشابه
Costs and benefits of multi-male associations in redfronted lemurs (Eulemur fulvus rufus).
The evolution of group-living has fascinated but also puzzled researchers from the inception of behavioural ecology. We use a simple optimality approach to examine some of the costs and benefits of group-living in redfronted lemurs (Eulemur fulvus rufus). We show that dominant males profit from accepting subordinates within their groups, as the latter significantly decrease the likelihood that ...
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I present data on variations in Eulemur fulvus rufus and Lepilemur mustelinus densities as well as tree characteristics (height, diameter and stem frequency) between edge and interior forest habitats in southeastern Madagascar. Line transect surveys were conducted from June 2003 to November 2005 in edge and interior forest habitats in the Vohibola III Classified Forest. Although E. f. rufus den...
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A variety of anthropoids travel efficiently from one food source to another, although there is disagreement over how this is accomplished over large-scale space. Mental maps, for example, require that animals internally represent space, geometrically locate landmarks, use true distance and direction, and generate novel shortcuts to resources. Alternately, topological or route-based maps are bas...
متن کاملPopulation demography and social structure changes in Eulemur fulvus rufus from 1988 to 2003.
Eulemur fulvus rufus has been described as having stable multi-male/multi-female groups, a male-biased sex ratio, and female philopatry. However, in a 16-year study of this subspecies we documented a great deal of demographic change as several groups permanently fissioned, some groups disappeared, and new groups formed. We split the dataset into two periods, 1988 to 1993 and 1994 to 2003, which...
متن کاملEndocrine characterization of female reproductive status in wild redfronted lemurs (Eulemur fulvus rufus).
In order to characterize the endocrine changes associated with ovarian function and pregnancy in wild redfronted lemurs (Eulemur fulvus rufus), profiles of immunoreactive 5alpha-pregnane-3alpha-ol-20-one (5-P-3OH) and total estrogens (E(t)) in feces were generated during the breeding season and gestation. HPLC data confirmed the presence of high amounts of 5-P-3OH in the feces of redfronted lem...
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ژورنال
عنوان ژورنال: International Journal of Primatology
سال: 2005
ISSN: 0164-0291,1573-8604
DOI: 10.1007/s10764-005-8858-6