Schnoell, Anna Viktoria

[["dc.bibliographiccitation.firstpage","61"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","American Journal of Physical Anthropology"],["dc.bibliographiccitation.lastpage","67"],["dc.bibliographiccitation.volume","153"],["dc.contributor.author","Schnoell, Anna Viktoria"],["dc.contributor.author","Hübner, Franziska"],["dc.contributor.author","Kappeler, Peter"],["dc.contributor.author","Fichtel, Claudia"],["dc.date.accessioned","2017-09-07T11:47:05Z"],["dc.date.available","2017-09-07T11:47:05Z"],["dc.date.issued","2014"],["dc.description.abstract","The dominant use of one hand is a striking feature of humans, but manual lateralization can be found in a variety of other species as well. In primates, the lateralization in hand use varies among species and several theories such as the \"postural origin,\" \"task complexity,\" or \"development theory\" have been suggested to explain this variation. In order to contribute comparative data on this phenomenon from a basal primate, we studied manual lateralization in wild redfronted lemurs (Eulemur rufifrons). Data were collected on four groups at Kirindy Forest, western Madagascar, during spontaneous actions and by confronting them with artificial feeding boxes. The lemurs did not exhibit manual lateralization on a group level in either condition. More individuals showed a hand preference in the experimental task, and the preferences were stronger compared to spontaneous actions. The direction of individual hand preferences was not consistent across the two conditions. The results of this study show that measuring manual laterality in different contexts can yield different results. Manual lateralization in wild redfronted lemurs therefore seems to be flexible and situation dependent and probably not ecologically relevant in their natural habitat."],["dc.identifier.doi","10.1002/ajpa.22403"],["dc.identifier.gro","3150596"],["dc.identifier.pmid","24318942"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/7373"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.issn","0002-9483"],["dc.subject","hand use; handedness; strepsirrhine"],["dc.title","Manual lateralization in wild redfronted lemurs (Eulemur rufifrons) during spontaneous actions and in an experimental task"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","65"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Ethology"],["dc.bibliographiccitation.lastpage","73"],["dc.bibliographiccitation.volume","124"],["dc.contributor.author","Fichtel, Claudia"],["dc.contributor.author","Schnoell, Anna Viktoria"],["dc.contributor.author","Kappeler, Peter"],["dc.date.accessioned","2018-02-09T08:52:18Z"],["dc.date.available","2018-02-09T08:52:18Z"],["dc.date.issued","2018"],["dc.description.abstract","Social tolerance crucially affects the life of group-living animals as it can influence, among other things, their competitive regimes, access to food, learning behavior, and recruitment. However, social tolerance tests were mainly conducted in semi-free or captive populations, and we know little about the behavioral mechanisms and consequences of social tolerance under natural conditions. We therefore developed a co-feeding experiment to measure social tolerance in groups of wild and captive animals across two primate species. Specifically, we recorded the social tolerance level of redfronted lemurs (Eulemur rufifrons, four wild, one captive group) and ringtailed lemurs (Lemur catta, three wild, three captive groups) by presenting a clumped food resource in an experimental arena, and recorded patterns of resource use during the experiment. Because redfronted lemurs exhibit lower levels of decided conflicts than ringtailed lemurs, we predicted that they would be socially more tolerant. The probability for an individual to feed in the arena was higher in redfronted lemurs than in ringtailed lemurs. In addition, in both species, the probability for an individual to feed in the arena was higher in the captive populations than in their wild counterparts, suggesting that proximate factors, such as a relaxation of feeding competition in captivity, may adapt species-specific levels of social tolerance to local levels of food availability. Hence, the number of individuals co-feeding on a valuable food resource appears to be a useful proxy of social tolerance that could be measured with this experimental setup in other wild and captive species as well."],["dc.identifier.doi","10.1111/eth.12706"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/12085"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.title","Measuring social tolerance: An experimental approach in two lemurid primates"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]