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

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

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 ...

Sifaka positional behavior: ontogenetic and quantitative genetic approaches.

In many primate species, hands and feet are large relative to neonatal body weight, and they subsequently exhibit negative allometric growth during ontogeny. Here, data are presented showing that this pattern holds for a wild population of lemur, Verreaux's sifaka (Propithecus verreauxi verreauxi). Using morphometric data collected on this population, it is shown that younger animals possess re...

Intergroup relations and home range use in Verreaux's sifaka (Propithecus verreauxi).

Relationships between neighboring groups feature prominently in socioecological theory, but few empirical studies have focused on the effects of neighbors on the behavior of primates. Interactions between neighboring groups are most conspicuous during intergroup encounters, but the likelihood of encounters with neighbors can also affect ranging and activity patterns indirectly, and, as a result...