Modeling the origins of mammalian sociality: moderate evidence for matrilineal signatures in mouse lemur vocalizations
| Autor: | Sharon E Kessler, Elke Zimmermann, Lisette M.C. Leliveld, Alida F. Hasiniaina, Leanne T. Nash, Ute Radespiel |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
0106 biological sciences
Microcebus murinus Kin recognition Population Lemur Zoology Kin selection 010603 evolutionary biology 01 natural sciences Ancestral primate Maternal kin Microsatellite Solitary forager Acoustic signature biology.animal Agonistic behaviour 0501 psychology and cognitive sciences 050102 behavioral science & comparative psychology education Ecology Evolution Behavior and Systematics Sociality education.field_of_study biology Mouse lemur Research 05 social sciences biology.organism_classification Animal Science and Zoology |
| Zdroj: | Frontiers in zoology, 11: 14 Frontiers in zoology, 2014, Vol.11(1), pp.14 [Peer Reviewed Journal] Frontiers in Zoology |
| Popis: | Introduction Maternal kin selection is a driving force in the evolution of mammalian social complexity and it requires that kin are distinctive from nonkin. The transition from the ancestral state of asociality to the derived state of complex social groups is thought to have occurred via solitary foraging, in which individuals forage alone, but, unlike the asocial ancestors, maintain dispersed social networks via scent-marks and vocalizations. We hypothesize that matrilineal signatures in vocalizations were an important part of these networks. We used the solitary foraging gray mouse lemur (Microcebus murinus) as a model for ancestral solitary foragers and tested for matrilineal signatures in their calls, thus investigating whether such signatures are already present in solitary foragers and could have facilitated the kin selection thought to have driven the evolution of increased social complexity in mammals. Because agonism can be very costly, selection for matrilineal signatures in agonistic calls should help reduce agonism between unfamiliar matrilineal kin. We conducted this study on a well-studied population of wild mouse lemurs at Ankarafantsika National Park, Madagascar. We determined pairwise relatedness using seven microsatellite loci, matrilineal relatedness by sequencing the mitrochondrial D-loop, and sleeping group associations using radio-telemetry. We recorded agonistic calls during controlled social encounters and conducted a multi-parametric acoustic analysis to determine the spectral and temporal structure of the agonistic calls. We measured 10 calls for each of 16 females from six different matrilineal kin groups. Results Calls were assigned to their matriline at a rate significantly higher than chance (pDFA: correct = 47.1%, chance = 26.7%, p = 0.03). There was a statistical trend for a negative correlation between acoustic distance and relatedness (Mantel Test: g = -1.61, Z = 4.61, r = -0.13, p = 0.058). Conclusions Mouse lemur agonistic calls are moderately distinctive by matriline. Because sleeping groups consisted of close maternal kin, both genetics and social learning may have generated these acoustic signatures. As mouse lemurs are models for solitary foragers, we recommend further studies testing whether the lemurs use these calls to recognize kin. This would enable further modeling of how kin recognition in ancestral species could have shaped the evolution of complex sociality. |
| Databáze: | OpenAIRE |
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