Engelhardt, Antje

[["dc.bibliographiccitation.firstpage","696"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Hormones and Behavior"],["dc.bibliographiccitation.lastpage","705"],["dc.bibliographiccitation.volume","61"],["dc.contributor.author","Dubuc, Constance"],["dc.contributor.author","Muniz, Laura"],["dc.contributor.author","Heistermann, Michael"],["dc.contributor.author","Widdig, Anja"],["dc.contributor.author","Engelhardt, Antje"],["dc.date.accessioned","2018-11-07T09:10:42Z"],["dc.date.available","2018-11-07T09:10:42Z"],["dc.date.issued","2012"],["dc.description.abstract","In contrast to most mammalian species, female sexual activity is not limited to the fertile phase of the ovarian cycle in anthropoid primates, which has long been proposed to conceal the timing of ovulation to males. It is now generally believed that females are still most attractive during the fertile phase, leading to high-ranking males successfully mate-guarding them specifically during this period. While studies conducted in species exhibiting exaggerated sexual swellings (probabilistic signal of the fertile phase) have generally supported this hypothesis, mixed support comes from others. Here, we investigated whether high-ranking males timed mate-guarding effort towards female fertile phases in rhesus macaques (Macaca mulatto). In this species, adult females do not exhibit sexual swellings, but undergo facial skin colour variation, an alternative oestrogen-dependent graded-signal of female reproductive status. We collected behavioural, hormonal and genetic paternity data during two mating seasons for one group of the free-ranging population of Cayo Santiago. Our results show that mate-guarding by top-ranking males did not completely cover the entire female fertile phase and that this tactic accounted for only 30-40% of all fertilisations observed. Males tended to prolong mate-guarding into the luteal phase (null probability of fertilisation), which mirrors the pattern of male attraction to female facial colour reported in an earlier study. These findings suggest that males may have limited knowledge regarding the exact timing of females' fertile phase in rhesus macaques, which presumably allows females to gain more control over reproduction relative to other anthropoid primate species. (C) 2012 Elsevier Inc. All rights reserved."],["dc.identifier.doi","10.1016/j.yhbeh.2012.03.003"],["dc.identifier.isi","000304339800005"],["dc.identifier.pmid","22449655"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/26552"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Academic Press Inc Elsevier Science"],["dc.relation.issn","1095-6867"],["dc.relation.issn","0018-506X"],["dc.title","Do males time their mate-guarding effort with the fertile phase in order to secure fertilisation in Cayo Santiago rhesus macaques?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["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.issue","6"],["dc.bibliographiccitation.journal","Folia Primatologica"],["dc.bibliographiccitation.volume","82"],["dc.contributor.author","Dubuc, Constance"],["dc.contributor.author","Muniz, Laura"],["dc.contributor.author","Heistermann, Michael"],["dc.contributor.author","Widdig, Anja"],["dc.contributor.author","Engelhardt, Antje"],["dc.date.accessioned","2018-11-07T09:00:14Z"],["dc.date.available","2018-11-07T09:00:14Z"],["dc.date.issued","2011"],["dc.format.extent","336"],["dc.identifier.isi","000304643100029"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/24104"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Karger"],["dc.publisher.place","Basel"],["dc.relation.issn","0015-5713"],["dc.title","Determinants of Paternity in Rhesus Macaques: Influence of the Timing of Mate Guarding with the Fertile Phase"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","338"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Journal of Personality and Social Psychology"],["dc.bibliographiccitation.lastpage","353"],["dc.bibliographiccitation.volume","109"],["dc.contributor.author","Adams, Mark James"],["dc.contributor.author","Majolo, Bonaventura"],["dc.contributor.author","Ostner, Julia"],["dc.contributor.author","Schülke, Oliver"],["dc.contributor.author","de Marco, Arianna"],["dc.contributor.author","Thierry, Bernard"],["dc.contributor.author","Engelhardt, Antje"],["dc.contributor.author","Widdig, Anja"],["dc.contributor.author","Gerald, Melissa S."],["dc.contributor.author","Weiss, Alexander"],["dc.date.accessioned","2017-09-07T11:54:46Z"],["dc.date.available","2017-09-07T11:54:46Z"],["dc.date.issued","2015"],["dc.description.abstract","Why regularities in personality can be described with particular dimensions is a basic question in differential psychology. Nonhuman primates can also be characterized in terms of personality structure. Comparative approaches can help reveal phylogenetic constraints and social and ecological patterns associated with the presence or absence of specific personality dimensions. We sought to determine how different personality structures are related to interspecific variation in social style. Specifically, we examined this question in 6 different species of macaques, because macaque social style is well characterized and can be categorized on a spectrum of despotic (Grade 1) versus tolerant (Grade 4) social styles. We derived personality structures from adjectival ratings of Japanese (Macaca fuscata; Grade 1), Assamese (M. assamensis; Grade 2), Barbary (M. sylvanus; Grade 3), Tonkean (M. tonkeana; Grade 4), and crested (M. nigra; Grade 4) macaques and compared these species with rhesus macaques (M. mulatta; Grade 1) whose personality was previously characterized. Using a nonparametric method, fuzzy set analysis, to identify commonalities in personality dimensions across species, we found that all but 1 species exhibited consistently defined Friendliness and Openness dimensions, but that similarities in personality dimensions capturing aggression and social competence reflect similarities in social styles. These findings suggest that social and phylogenetic relationships contribute to the origin, maintenance, and diversification of personality. (PsycINFO Database Record (c) 2016 APA, all rights reserved)"],["dc.identifier.doi","10.1037/pspp0000041"],["dc.identifier.gro","3151490"],["dc.identifier.pmid","26030054"],["dc.identifier.pmid","26030054"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/8297"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","1939-1315"],["dc.title","Personality structure and social style in macaques"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["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.firstpage","911"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Animal Behaviour"],["dc.bibliographiccitation.lastpage","921"],["dc.bibliographiccitation.volume","82"],["dc.contributor.author","Neumann, Christof"],["dc.contributor.author","Duboscq, Julie"],["dc.contributor.author","Dubuc, Constance"],["dc.contributor.author","Ginting, Andri"],["dc.contributor.author","Irwan, Ade Maulana"],["dc.contributor.author","Agil, Muhammad"],["dc.contributor.author","Widdig, Anja"],["dc.contributor.author","Engelhardt, Antje"],["dc.date.accessioned","2018-11-07T08:51:12Z"],["dc.date.available","2018-11-07T08:51:12Z"],["dc.date.issued","2011"],["dc.identifier.doi","10.1016/j.anbehav.2011.07.016"],["dc.identifier.isi","000295262800040"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/21876"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Academic Press Ltd- Elsevier Science Ltd"],["dc.relation.issn","0003-3472"],["dc.title","Assessing dominance hierarchies: validation and advantages of progressive evaluation with Elo-rating"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.subtype","letter_note"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","20212626"],["dc.bibliographiccitation.issue","1976"],["dc.bibliographiccitation.journal","Proceedings of the Royal Society B: Biological Sciences"],["dc.bibliographiccitation.volume","289"],["dc.contributor.author","Neumann, Christof"],["dc.contributor.author","Kulik, Lars"],["dc.contributor.author","Agil, Muhammad"],["dc.contributor.author","Engelhardt, Antje"],["dc.contributor.author","Widdig, Anja"],["dc.date.accessioned","2022-07-01T07:35:05Z"],["dc.date.available","2022-07-01T07:35:05Z"],["dc.date.issued","2022"],["dc.description.abstract","Coalition formation is one of the most striking forms of cooperation found in animals. Yet, there is substantial variation between taxa regarding the mechanisms by which coalitions can result in fitness consequences. Here, we investigate the influence of coalitions on dominance rank trajectories and subsequently on reproductive success in wild male crested macaques ( Macaca nigra ) at Tangkoko Nature Reserve (Sulawesi, Indonesia). We observed 128 coalition events involving 28 males and tested how a variety of coalition properties and factors related to the social environment influenced future male rank. We further used genetic paternity analysis of 19 infants conceived during the study to assess male reproductive success. Our results show that males participating in coalitions achieved higher-than-expected future ranks, while coalition targets had lower-than-expected future ranks. Additionally, all-up coalitions had stronger effects on rank than all-down and bridging coalitions, and these were modulated by the relative strength of coalition partners versus targets. Finally, higher ranking males were more likely to sire infants than lower ranking males. These results provide important insights regarding the mechanisms underlying coalition formation and support the idea that one major path by which coalitions can affect fitness is through influencing male dominance trajectories."],["dc.description.sponsorship","Saxon State Ministry for Higher Education"],["dc.description.sponsorship"," Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659"],["dc.identifier.doi","10.1098/rspb.2021.2626"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/112081"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-581"],["dc.relation.eissn","1471-2954"],["dc.relation.issn","0962-8452"],["dc.rights.uri","https://royalsociety.org/journals/ethics-policies/data-sharing-mining/"],["dc.title","Temporal dynamics and fitness consequences of coalition formation in male primates"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["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"]]

[["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Scientific Reports"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Higham, James P."],["dc.contributor.author","Heistermann, Michael"],["dc.contributor.author","Agil, Muhammad"],["dc.contributor.author","Perwitasari-Farajallah, Dyah"],["dc.contributor.author","Widdig, Anja"],["dc.contributor.author","Engelhardt, Antje"],["dc.date.accessioned","2022-10-06T13:34:18Z"],["dc.date.available","2022-10-06T13:34:18Z"],["dc.date.issued","2021"],["dc.description.abstract","Abstract\n \n High social status is the primary determinant of reproductive success among group-living male mammals. Primates living in multimale–multifemale groups show the greatest variation in the strength of this link, with marked variation in reproductive skew by male dominance among species, dependent on the degree of female fertile phase synchrony, and the number of competing males. Here, we present data on two groups of wild crested macaques (\n Macaca nigra\n ), living in the Tangkoko Reserve, Sulawesi, Indonesia. We investigated male monopolization of fertile females in 31 cycles of 19 females, and genetic paternity of 14 offspring conceived during the study period. We show that female fertile phase synchrony was low, that females had few mating partners in their fertile phase, and that dominant males monopolized a high proportion of consortships and matings, resulting in marked and steep mating and reproductive skew. We conclude that female cycle asynchrony provides the opportunity for strong direct male–male competition in crested macaques, resulting in monopolization of females by dominant males, consistent with their marked sexual dimorphism. Our study provides a test of the underlying factors that determine the relative occurrence and strength of different mechanisms of sexual selection, and the phenotypes that evolve as a result."],["dc.description.sponsorship"," Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659"],["dc.description.sponsorship","Projekt DEAL"],["dc.identifier.doi","10.1038/s41598-021-81163-1"],["dc.identifier.pii","81163"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/115878"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-602"],["dc.relation.eissn","2045-2322"],["dc.relation.orgunit","Deutsches Primatenzentrum"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Female fertile phase synchrony, and male mating and reproductive skew, in the crested macaque"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","672"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","International Journal of Primatology"],["dc.bibliographiccitation.lastpage","691"],["dc.bibliographiccitation.volume","38"],["dc.contributor.author","Engelhardt, Antje"],["dc.contributor.author","Muniz, Laura"],["dc.contributor.author","Perwitasari-Farajallah, Dyah"],["dc.contributor.author","Widdig, Anja"],["dc.date.accessioned","2020-12-10T14:11:36Z"],["dc.date.available","2020-12-10T14:11:36Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1007/s10764-017-9973-x"],["dc.identifier.eissn","1573-8604"],["dc.identifier.issn","0164-0291"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/71127"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Highly Polymorphic Microsatellite Markers for the Assessment of Male Reproductive Skew and Genetic Variation in Critically Endangered Crested Macaques (Macaca nigra)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]