Isabelle Lackman-Ancrenaz

TL;DR: Using the largest-ever genetic sample from wild orang-utan populations, strong evidence is shown for a recent demographic collapse in North Eastern Borneo and it is demonstrated that this signature is independent of the mutation and demographic models used.

TL;DR: It was found that migration between samples from the same side of the river had a high probability indicating that orang‐utans used to move relatively freely between neighbouring areas, which strongly suggests that there is a need to maintain migration between isolated forest fragments.

TL;DR: It is shown that the number of nests detected during aerial surveys is directly related to the estimated true animal density and that a helicopter is an efficient tool to provide robust estimates of orangutan numbers.

TL;DR: In this article, helicopter surveys were used to assess the distribution of orang-utans in the multiple-use forests of the Kinabatangan floodplain (Sabah, Malaysia) and were a major advantage in the precise estimation of the size of the population surviving in this region.

TL;DR: In this article, the authors examined patterns of relatedness and parentage in a wild orang-utan population in Borneo using noninvasively collected DNA samples from animals observed to defecate, and microsatellite markers to assess dispersal and mating strategies.