Testing for a historical population bottleneck in wild Verreaux's sifaka (Propithecus verreauxi verreauxi) using microsatellite data.

BRIEF REPORT Testing for a Historical Population Bottleneck in Wild Verreaux’s Sifaka (Propithecus verreauxi verreauxi ) Using Microsatellite Data

The degree to which historical human activities negatively impacted past and present lemur species is a long-standing question in primatology. At present, most evidence addressing this issue comes from archaeology, paleontology, and behavioral studies. Genetic data provide another source of evidence. In this study, six microsatellite loci, genotyped on more than 360 wild Verreaux’s sifaka, are ...

Morphological integration and natural selection in the postcranium of wild verreaux's sifaka (Propithecus verreauxi verreauxi).

Morphological integration manifests as strong phenotypic covariation among interacting traits. In this study, a graph-theory approach is used to analyze patterns of morphological integration in a wild population of Verreaux's sifaka (Propithecus verreauxi verreauxi). The motivation for this study is to determine the relative roles of development versus function in shaping patterns of morphologi...

Intrasexual selection in Verreaux's sifaka (Propithecus verreauxi verreauxi).

Studies of sexual selection show that both female choice and male-male competition can influence the evolution and expression of male phenotypes. In this regard, it is important to determine the functional basis through which male traits influence variation in male reproductive success. In this study, we estimate the strength and type of sexual selection acting on adult males in a population of...

One reserve, three primates: applying a holistic approach to understand the interconnections among ring-tailed lemurs (<i>Lemur catta</i>), Verreaux's sifaka (Propithecus verreauxi), and humans (<i>Homo sapiens</i>) at Beza Mahafaly Special Reserve, Madag

Fitness and extra-group reproduction in male Verreaux's sifaka: An analysis of reproductive success from 1989-1999.

Adult males in social groups often compete with other male group members for access to adult females. In some primate species, males also seek mating opportunities in neighboring social groups. Such extra-group fertilizations (EGFs) provide an additional source of variation in male fitness. This additional component of fitness provided by EGFs must be incorporated into analyses that investigate...