Engelhardt, Antje

[["dc.bibliographiccitation.firstpage","1615"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Behavioral Ecology and Sociobiology"],["dc.bibliographiccitation.lastpage","1627"],["dc.bibliographiccitation.volume","65"],["dc.contributor.author","Dubuc, Constance"],["dc.contributor.author","Muniz, Laura"],["dc.contributor.author","Heistermann, Michael"],["dc.contributor.author","Engelhardt, Antje"],["dc.contributor.author","Widdig, Anja"],["dc.date.accessioned","2018-11-07T08:53:44Z"],["dc.date.available","2018-11-07T08:53:44Z"],["dc.date.issued","2011"],["dc.description.abstract","In mammals, when females are clumped in space, male access to receptive females is usually determined by a dominance hierarchy based on fighting ability. In polygynandrous primates, as opposed to most mammalian species, the strength of the relationship between male social status and reproductive success varies greatly. It has been proposed that the degree to which paternity is determined by male rank decreases with increasing female reproductive synchrony. The priority-of-access model (PoA) predicts male reproductive success based on female synchrony and male dominance rank. To date, most tests of the PoA using paternity data involved nonseasonally breeding species. Here, we examine whether the PoA explains the relatively low reproductive skew in relation to dominance rank reported in the rhesus macaque, a strictly seasonal species. We collected behavioral, genetic, and hormonal data on one group of the free-ranging population on Cayo Santiago (Puerto Rico) for 2 years. The PoA correctly predicted the steepness of male reproductive skew, but not its relationship to male dominance: the most successful sire, fathering one third of the infants, was high but not top ranking. In contrast, mating success was not significantly skewed, suggesting that other mechanisms than social status contributed to male reproductive success. Dominance may be less important for paternity in rhesus macaques than in other primate species because it is reached through queuing rather than contest, leading to alpha males not necessarily being the strongest or most attractive male. More work is needed to fully elucidate the mechanisms determining paternity in rhesus macaques."],["dc.identifier.doi","10.1007/s00265-011-1172-8"],["dc.identifier.isi","000293379400013"],["dc.identifier.pmid","21874084"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7309"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22493"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0340-5443"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Testing the priority-of-access model in a seasonally breeding primate species"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1117"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Behavioral Ecology and Sociobiology"],["dc.bibliographiccitation.lastpage","1130"],["dc.bibliographiccitation.volume","70"],["dc.contributor.author","Kerhoas, Daphne"],["dc.contributor.author","Kulik, Lars"],["dc.contributor.author","Perwitasari-Farajallah, Dyah"],["dc.contributor.author","Agil, Muhammad"],["dc.contributor.author","Engelhardt, Antje"],["dc.contributor.author","Widdig, Anja"],["dc.date.accessioned","2018-11-07T10:11:06Z"],["dc.date.available","2018-11-07T10:11:06Z"],["dc.date.issued","2016"],["dc.description.abstract","In promiscuous primates, interactions between adult males and infants have rarely been investigated. However, recent evidence suggests that male affiliation towards infants has an influence on several aspects of the infants' life. Furthermore, affiliations may be associated with male reproductive strategy. In this study, we examined which social factors influenced male-infant affiliation initiated by either male or infant, in wild crested macaques (Macaca nigra). We combined behavioral data and genetic paternity analysis from 30 infants living in three wild groups in Tangkoko Reserve, Indonesia. Our results indicate that adult males and infants do not interact at random, but rather form preferential associations. The social factors with the highest influence on infant-initiated interactions were male rank and male association with the infant's mother. While infants initiated affiliations with males more often in the absence of their mothers, adult males initiated more affiliations with infants when their mothers were present. Furthermore, males initiated affiliations more often when they were in the same group at the time the infant was conceived, when they held a high dominance rank, or when they had a close relationship with the mother. Interestingly, paternity did not affect male-infant affiliation despite being highly skewed in this species. Overall, our results suggest that adult males potentially associate with an infant to secure future mating with the mother. Infants are more likely to associate with a male to receive better support, suggesting a strategy to increase the chance of infant survival in a primate society with high infant mortality. We explore social relationships between males and infants in a promiscuous primate, the wild crested macaque. Our novel approach addresses the nature of affiliations both from males' and infants' perspectives. The results show that males and infants form preferential associations. Male-female affiliation, but not paternity, was a significant predictor of interactions initiated both by males and infants. Males initiated more interactions towards infants when the mother was in proximity, while infants initiated more interactions in her absence. Finally, high-ranking males were more likely to initiate interactions towards infants. We demonstrated that paternity is not a good predictor of male-infant affiliations, even in a species with a high reproductive skew and a relatively high confidence of paternity. Our paper is one of the first to show that infants are active agents in establishing and maintaining preferential relationships with males."],["dc.identifier.doi","10.1007/s00265-016-2116-0"],["dc.identifier.isi","000380266000001"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14320"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/39983"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1432-0762"],["dc.relation.issn","0340-5443"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Mother-male bond, but not paternity, influences male-infant affiliation in wild crested macaques"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","e69383"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","PLoS ONE"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Neumann, Christof"],["dc.contributor.author","Agil, Muhammad"],["dc.contributor.author","Widdig, Anja"],["dc.contributor.author","Engelhardt, Antje"],["dc.date.accessioned","2018-11-07T09:21:24Z"],["dc.date.available","2018-11-07T09:21:24Z"],["dc.date.issued","2013"],["dc.description.abstract","Animal personalities, i.e. consistent differences in behavior across time and/or context, have received increased attention of behavioral biologists over the last years. Recent research shows that personalities represent traits on which natural and sexual selection work and which can have substantial fitness consequences. The aim of this study is to establish the personality structure of crested macaque (Macaca nigra) males as foundation for future studies on its adaptive value. We collected behavioral data through focal animal sampling and additionally conducted two sets of playback experiments. Results of a factor analysis on the behavioral data revealed a four factor structure with components we labeled Anxiety, Sociability, Connectedness and Aggressiveness. Results from the experiments revealed an additional and independent Boldness factor but the absence of Neophilia. Overall, this structure resembles other macaque and animal species with the exception of Connectedness, which might be a consequence of the species' tolerant social style. Our results thus not only form the basis for future studies on the adaptive value of personality in crested macaques but also contribute an important data point for investigating the evolution of personality structure from a comparative perspective by refining, for example, which personality factors characterized the last common ancestor of hominids and macaques."],["dc.identifier.doi","10.1371/journal.pone.0069383"],["dc.identifier.isi","000324465000012"],["dc.identifier.pmid","23940517"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/9207"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/29094"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Public Library Science"],["dc.relation.issn","1932-6203"],["dc.rights","CC BY 2.5"],["dc.rights.uri","https://creativecommons.org/licenses/by/2.5"],["dc.title","Personality of Wild Male Crested Macaques (Macaca nigra)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]