Header

UZH-Logo

Maintenance Infos

Copulation calls in female chimpanzees (Pan troglodytes schweinfurthii) convey identity but do not accurately reflect fertility


Townsend, Simon William; Deschner, Tobias; Zuberbühler, Klaus (2011). Copulation calls in female chimpanzees (Pan troglodytes schweinfurthii) convey identity but do not accurately reflect fertility. International Journal of Primatology, 32(4):914-923.

Abstract

Copulation calls are a relatively common feature of female primate behavior thought to function in the advertisement of female receptivity and subsequent incitation of male-male competition. To date, the majority of work on copulation calling behavior has focused on various monkey species, with little empirical evidence from the great apes. Previous research on wild chimpanzees (Pan troglodytes schweinfurthii) has suggested that estrous females produce copulation calls to avoid monopolization by single males and to minimize competition from other females. We here extended these findings by investigating to what degree these social demands were reflected in the calls' acoustic structure. We recorded and acoustically analyzed 71 copulation call bouts from 6 adult female chimpanzees in the Budongo Forest, Uganda. We did not find any acoustic differences in calls given by females in fertile and nonfertile periods, as assessed by their hormonal profiles. However, the calls' acoustic structure did reliably encode identity cues of the calling female. We propose that, in chimpanzees, the use and morphology of copulation calls have jointly been shaped by the selective advantage of concealing fertility. Owing to the low visibility conditions associated with chimpanzees' natural forest habitat and their dispersed social system, providing identity cues may be of particular biological relevance for these nonhuman primates

Abstract

Copulation calls are a relatively common feature of female primate behavior thought to function in the advertisement of female receptivity and subsequent incitation of male-male competition. To date, the majority of work on copulation calling behavior has focused on various monkey species, with little empirical evidence from the great apes. Previous research on wild chimpanzees (Pan troglodytes schweinfurthii) has suggested that estrous females produce copulation calls to avoid monopolization by single males and to minimize competition from other females. We here extended these findings by investigating to what degree these social demands were reflected in the calls' acoustic structure. We recorded and acoustically analyzed 71 copulation call bouts from 6 adult female chimpanzees in the Budongo Forest, Uganda. We did not find any acoustic differences in calls given by females in fertile and nonfertile periods, as assessed by their hormonal profiles. However, the calls' acoustic structure did reliably encode identity cues of the calling female. We propose that, in chimpanzees, the use and morphology of copulation calls have jointly been shaped by the selective advantage of concealing fertility. Owing to the low visibility conditions associated with chimpanzees' natural forest habitat and their dispersed social system, providing identity cues may be of particular biological relevance for these nonhuman primates

Statistics

Citations

Dimensions.ai Metrics
9 citations in Web of Science®
11 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

35 downloads since deposited on 05 Dec 2018
33 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:National licences > 142-005
Dewey Decimal Classification:Unspecified
Uncontrolled Keywords:Acoustic structure, Chimpanzees, Female–female competition, Information content
Language:English
Date:1 August 2011
Deposited On:05 Dec 2018 19:08
Last Modified:24 Sep 2019 23:45
Publisher:Springer
ISSN:0164-0291
OA Status:Green
Publisher DOI:https://doi.org/10.1007/s10764-011-9510-2
Related URLs:https://www.swissbib.ch/Search/Results?lookfor=nationallicencespringer101007s1076401195102 (Library Catalogue)

Download

Green Open Access

Download PDF  'Copulation calls in female chimpanzees (Pan troglodytes schweinfurthii) convey identity but do not accurately reflect fertility'.
Preview
Content: Published Version
Language: English
Filetype: PDF (Nationallizenz 142-005)
Size: 203kB
View at publisher