Complexity in behavioural organization and strongylid infection among wild chimpanzees

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F17%3A00478923" target="_blank" >RIV/60077344:_____/17:00478923 - isvavai.cz</a>

Alternative codes found

RIV/68081766:_____/17:00476000 RIV/00216224:14310/17:00100362 RIV/62157124:16170/17:43875487 RIV/62157124:16810/17:43875487

Result on the web

<a href="http://dx.doi.org/10.1016/j.anbehav.2017.06.002" target="_blank" >http://dx.doi.org/10.1016/j.anbehav.2017.06.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.anbehav.2017.06.002" target="_blank" >10.1016/j.anbehav.2017.06.002</a>

Result language

angličtina

Original language name

Complexity in behavioural organization and strongylid infection among wild chimpanzees

Original language description

Objectively measuring the effects of parasitism on animal health is challenging, especially in the wild. Analyses of behavioural organization are increasingly used for this purpose, to identify animals in pathological or otherwise challenged states. Here, we investigated the possible impact of gastrointestinal helminth infection on the behaviour of wild chimpanzees, Pan troglodytes schweinfurthii, by applying fractal analysis to their feeding patterns. We predicted that higher intensity of strongylid infection should be associated with altered organizational complexity in temporal sequences of behaviour. We observed 15 habituated male chimpanzees in Kalinzu Reserve Forest, Uganda, and collected behavioural time series via focal animal sampling. We quantified the number of strongylid eggs per gram of faecal sediment using a modified simple sedimentation method to estimate the intensity of infection with strongylid nematodes. We used detrended fluctuation analysis ( DFA) to explore long-range dependence in binary sequences of feeding behaviour as an index of organizational complexity along a stochastic-deterministic gradient. We then built several generalized linear mixed models to examine the relationship between behavioural organization and strongylid infection. Our results indicate that chimpanzee feeding sequences are long-range dependent and antipersistent, i.e. short bouts tended to be followed by long bouts and vice versa. Furthermore, the complexity of chimpanzee feeding sequences and the intensity of infection with strongylid nematodes were positively related: individuals with more intense infections exhibited more stochastic feeding sequences. In contrast, more conventional analyses did not reveal any relationship between parasitism and chimpanzee behaviour, nor did a survival analysis find variation in the probability of switching between behaviour states across chimpanzees with varying infection phenotypes.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10613 - Zoology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Animal Behaviour

ISSN

0003-3472

e-ISSN

—

Volume of the periodical

129

Issue of the periodical within the volume

July

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

257-268

UT code for WoS article

000405821200028

EID of the result in the Scopus database

2-s2.0-85021310091