Market effects offset the reciprocation of grooming in free-ranging redfronted lemurs, Eulemur fulvus rufus
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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 ...
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...
متن کاملSex-specific reproductive strategies of redfronted lemurs (Eulemur fulvus rufus, Primates, Lemuridae)
In order to characterize the endocrine changes associated with ovarian function and pregnancy in wild redfronted lemurs (Eulemur fulvus rufus), profiles of immunoreactive 5α-pregnane-3α-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 lemurs and s...
متن کاملSpatial variations in Eulemur fulvus rufus and Lepilemur mustelinus densities in Madagascar.
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...
متن کاملEdge effects and their influence on lemur density and distribution in Southeast Madagascar.
Edge effects are caused by the penetration of abiotic and biotic conditions from the matrix into forest interiors. Although edge effects influence the biogeography of many tropical organisms, they have not been studied directly in primates. Edge effects are particularly relevant to lemurs due to the loss of 80-90% of forests in Madagascar. In this study, data are presented on how biotic edge ef...
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تاریخ انتشار 2008