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| Content Provider | Springer Nature Link |
|---|---|
| Author | Jolly, Clifford J. Phillips Conroy, Jane E. Kaplan, Jay R. Mann, J. John |
| Copyright Year | 2008 |
| Abstract | We used a cross-sectional sample to compare ontogenetic trajectories in the concentrations of monoamine neurotransmitter metabolites in cerebrospinal fluid of wild anubis (Papio anubis, n = 49) and hamadryas (P. hamadryas, n = 54) baboons to test the prediction that they would differ, especially in males, in association with their distinct behavioral ontogenies. Values of all 3 metabolites [3-methoxy-4-hydroxyphenylglycol (MHPG), the norepinephrine metabolite; 5-hydroxyindoleacetic acid (5-HIAA), the serotonin metabolite; and homovanillic acid (HVA), the dopamine metabolite] declined consistently with dentally-calibrated maturation, and few taxon-related differences were apparent among juveniles. Adult females were too few for adequate comparison, but a discriminant function suggested that they might differ by taxon. Adult males of the 2 species differed strikingly from juveniles and from each other. Contrary to our initial hypothesis, adult male anubis had significantly lower HVA and MHPG, and higher 5-HIAA levels, than predicted from the overall, age-related trend, and MHPG continued to decline with age among adults. As young adults, male hamadryas had low 5-HIAA and a high HVA/5-HIAA ratio, while older males [normatively one-male unit (OMU) leaders] showed a reversal in the trend, with 5-HIAA rising and the HVA/5-HIAA ratio tending to fall. We speculate that the results are related to the dispersing and philopatric ontogenies of anubis and hamadryas males, respectively. Adult male anubis, whose fitness depends on building social networks with nonkin, have high relative serotonin activity, commonly associated with greater social circumspection and skill. Young adult male hamadryas, living among agnatic kin and mating opportunistically, exhibit low 5-HIAA levels, generally associated with impulsivity and social irresponsibility. This reverses as a male approaches the age at which he is normatively the leader of a one-male unit (OMU), and his fitness depends on his maintaining stable relationships with other leaders and with females. |
| Starting Page | 1549 |
| Ending Page | 1566 |
| Page Count | 18 |
| File Format | |
| ISSN | 01640291 |
| Journal | International Journal of Primatology |
| Volume Number | 29 |
| Issue Number | 6 |
| e-ISSN | 15738604 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2008-12-02 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | baboon cerebrospinal fluid monoamine metabolites ontogeny Papio anubis Papio hamadryas Animal Genetics and Genomics Zoology Anthropology Human Genetics Evolutionary Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
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