Fickenscher, Gisela

[["dc.bibliographiccitation.firstpage","652"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","International Journal of Primatology"],["dc.bibliographiccitation.lastpage","668"],["dc.bibliographiccitation.volume","32"],["dc.contributor.author","Patzelt, Annika"],["dc.contributor.author","Zinner, Dietmar"],["dc.contributor.author","Fickenscher, Gisela"],["dc.contributor.author","Diedhiou, Sarany"],["dc.contributor.author","Camara, Becaye"],["dc.contributor.author","Stahl, Daniel"],["dc.contributor.author","Fischer, Julia"],["dc.date.accessioned","2017-09-07T11:47:11Z"],["dc.date.available","2017-09-07T11:47:11Z"],["dc.date.issued","2011"],["dc.description.abstract","Baboon social systems are among the most studied in primates. Solid knowledge of the hamadryas and savannah baboon systems has accumulated, leading to a dichotomic view of baboon social systems. Hamadryas baboons live in multilayered troops based on 1-male units whereas savannah baboons live in multimale multifemale groups based on a network of related females. Less attention has been paid to their West African congenerics, the Guinea baboons, Papio papio. To fill this gap, in 2007 we initiated a long-term study of a baboon troop ranging in the Niokolo Koba National Park in southeastern Senegal. Earlier studies suggested a tendency for a multilayered social system in Guinea baboons, similar to the hamadryas baboon organization. Therefore, as a first approach to analyzing variability in party size and composition, we observed members of the troop crossing an open area from a fixed point for 3 mo during the dry and wet seasons. We counted individuals and recorded changes in composition of both arriving and departing parties. Party size and composition were highly variable on both a daily and a seasonal basis; 45.9% of the arriving parties changed in composition while crossing the open area, either splitting into smaller parties or fusing into larger ones, suggesting a fluid organization. Our data support the existence of neither a hamadryas baboon-like multilayered social organization nor a stable medium-sized multimale multifemale group as in savannah baboons. In light of our data we may need to revise the dichotomic view of baboon social systems and include space for greater variability of their social systems."],["dc.identifier.doi","10.1007/s10764-011-9493-z"],["dc.identifier.gro","3150642"],["dc.identifier.pmid","21654901"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/6657"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/7422"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.relation.issn","0164-0291"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject","Fixed-point observation; Guinea baboons; Papio papio; Social organization"],["dc.title","Group Composition of Guinea Baboons (Papio papio) at a Water Place Suggests a Fluid Social Organization"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","e24490"],["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","PLoS ONE"],["dc.bibliographiccitation.lastpage","8"],["dc.bibliographiccitation.volume","6"],["dc.contributor.author","Fischer, Julia"],["dc.contributor.author","Semple, Stuart"],["dc.contributor.author","Fickenscher, Gisela"],["dc.contributor.author","Jürgens, Rebecca"],["dc.contributor.author","Kruse, Eberhard"],["dc.contributor.author","Heistermann, Michael"],["dc.contributor.author","Amir, Ofer"],["dc.contributor.editor","Halsey, Lewis George"],["dc.date.accessioned","2017-09-07T11:47:16Z"],["dc.date.available","2017-09-07T11:47:16Z"],["dc.date.issued","2011"],["dc.description.abstract","The human voice provides a rich source of information about individual attributes such as body size, developmental stability and emotional state. Moreover, there is evidence that female voice characteristics change across the menstrual cycle. A previous study reported that women speak with higher fundamental frequency (F0) in the high-fertility compared to the low-fertility phase. To gain further insights into the mechanisms underlying this variation in perceived attractiveness and the relationship between vocal quality and the timing of ovulation, we combined hormone measurements and acoustic analyses, to characterize voice changes on a day-to-day basis throughout the menstrual cycle. Voice characteristics were measured from free speech as well as sustained vowels. In addition, we asked men to rate vocal attractiveness from selected samples. The free speech samples revealed marginally significant variation in F0 with an increase prior to and a distinct drop during ovulation. Overall variation throughout the cycle, however, precluded unequivocal identification of the period with the highest conception risk. The analysis of vowel samples revealed a significant increase in degree of unvoiceness and noise-to-harmonic ratio during menstruation, possibly related to an increase in tissue water content. Neither estrogen nor progestogen levels predicted the observed changes in acoustic characteristics. The perceptual experiments revealed a preference by males for voice samples recorded during the pre-ovulatory period compared to other periods in the cycle. While overall we confirm earlier findings in that women speak with a higher and more variable fundamental frequency just prior to ovulation, the present study highlights the importance of taking the full range of variation into account before drawing conclusions about the value of these cues for the detection of ovulation."],["dc.format.extent","8"],["dc.identifier.doi","10.1371/journal.pone.0024490"],["dc.identifier.gro","3150670"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8022"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/7451"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.relation.issn","1932-6203"],["dc.rights","CC BY 2.5"],["dc.rights.uri","https://creativecommons.org/licenses/by/2.5"],["dc.title","Do Women's Voices Provide Cues of the Likelihood of Ovulation? The Importance of Sampling Regime"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","American Journal of Physical Anthropology"],["dc.bibliographiccitation.lastpage","10"],["dc.bibliographiccitation.volume","147"],["dc.contributor.author","Yang, Mouyu"],["dc.contributor.author","Yang, Yeqin"],["dc.contributor.author","Cui, Duoying"],["dc.contributor.author","Fickenscher, Gisela"],["dc.contributor.author","Zinner, Dietmar"],["dc.contributor.author","Roos, Christian"],["dc.contributor.author","Brameier, Markus"],["dc.date.accessioned","2022-10-06T13:34:37Z"],["dc.date.available","2022-10-06T13:34:37Z"],["dc.date.issued","2011"],["dc.identifier.doi","10.1002/ajpa.21618"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/115954"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-602"],["dc.relation.issn","0002-9483"],["dc.relation.orgunit","Deutsches Primatenzentrum"],["dc.title","Population genetic structure of Guizhou snub-nosed monkeys (Rhinopithecus brelichi) as inferred from mitochondrial control region sequences, and comparison with R. roxellana and R. bieti"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]