AI Article Synopsis
- Researchers collected fecal samples from white-headed langurs in southwestern Guangxi, China, to study genetic relatedness within and between groups.
- They identified two main group structures: one-male/multi-female groups (OMGs) and all-male groups (AMGs), with specific dynamics observed in the AMG group.
- The study found that resident males had a high reproductive success rate, fathering 95% of the offspring in OMGs, while non-resident males had limited mating opportunities.
Article Abstract
We collected fecal samples of white-headed langurs from 3 of the 4 remaining habitat fragments (Fa, Fb and CZ) located in southwestern Guangxi, China in Nov 2005, and used 5 microsatellite loci and the SRY gene to assess the relatedness between 46 langurs within and between groups. We observed 2 forms of group structure: one-male/multi-female groups (OMGs) and all-male groups (AMGs). One AMG in Fa was composed of 2 generations, included a father, 2 sons and 1 unrelated male, and all OMGs in all 3 habitats included 1 resident male, several adult females and offspring. Of the 21 identified father-offspring cases, the resident male fathered 20 (95%) and the non-resident male sired 1 (5%), suggesting that adult males had overwhelming priority of access to females as the resident male in an OMG, while the non-resident male may also have the opportunity to adopt surreptitious mating strategies.
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| http://dx.doi.org/10.1111/1749-4877.12048 | DOI Listing |
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