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  Towards understanding multimodal traits of female reproduction in chimpanzees

Kücklich, M., Jänig, S., Kulik, L., Birkemeyer, C., Weiss, B. M., & Widdig, A. (2022). Towards understanding multimodal traits of female reproduction in chimpanzees. Primates.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000A-93D0-4 Version Permalink: https://hdl.handle.net/21.11116/0000-000A-B0A4-5
Genre: Journal Article

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 Creators:
Kücklich, Marlen1, 2, Author           
Jänig, Susann, Author
Kulik, Lars2, Author           
Birkemeyer, , Claudia, Author
Weiss, Brigitte M.1, 2, Author           
Widdig, Anja1, 2, Author           
Affiliations:
1Department of Human Behavior Ecology and Culture, Max Planck Institute for Evolutionary Anthropology, Max Planck Society, ou_2173689              
2Research Group Primate Behavioural Ecology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society, ou_3166785              

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Free keywords: olfactory communication; olfaction; GC-MS; chemical composition; menstrual cycle; anogenital swelling
 Abstract: Although primates have long been regarded as microsmatic, recent studies indicate
that olfaction is an important sensory mode of primate communication, for example, in
the context of reproduction. However, large gaps remain in understanding primate
olfactory traits, especially in great apes. Female chimpanzees (Pan troglodytes)
possess an exaggerated sexual swelling which is an imprecise signal of fertility to
confuse paternity. Even so, some high-ranking males copulating most frequently at
fertile days of females seem to have more precise information on the timing of
ovulation, suggesting the existence of an olfactory fertility trait. In order to provide
evidence of fertility-related information in female chimpanzees, we used gas
chromatography – mass spectrometry to analyze the chemical composition of female
body odor collected across the menstrual cycle from various swelling stages (97
samples of six females). We found that the chemical composition was significantly
affected by swelling stages and detected nine substances that were strongly related to
swelling stages. The existence of an additional olfactory fertility trait could either help
males to fine-tune their sexual behavior or allow females to strengthen concealment of
the exact timing of ovulation, which needs to be further investigated in follow-up
studies. The results of our study add much-needed evidence about the existence of an
olfactory cue related to reproduction in chimpanzees and form a basis for future
studies on the interplay between visual and olfactory information of female fertility.

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Language(s): eng - English
 Dates: 20222022-06-282022
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: -
 Degree: -

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Title: Primates
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Inuyama, Aichi, Japan : Japan Monkey Centre
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: ISSN: 0032-8332