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Seed size selection by olive baboons.

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Year: 2008 Volume: 49 Issue: 3

Year: 2008 Volume: 49 Issue: 2

Year: 1999 Volume: 40

Year: 1972 Volume: 13

Seed size selection by olive baboons.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Kunz, Britta Kerstin Linsenmair, Karl Eduard
Spatial Coverage	Cote d'Ivoire
Description	Country affiliation: Germany Author Affiliation: Kunz BK ( Department of Animal Ecology and Tropical Biology, Theodor-Boveri Institute of Biosciences, University of Wuerzburg, Am Hubland, 97074 Wuerzburg, Germany. kunz@biozentrum.uni-wuerzburg.de)
Abstract	Seed size is an important plant fitness trait that can influence several steps between fruiting and the establishment of a plant's offspring. Seed size varies considerably within many plant species, yet the relevance of the trait for intra-specific fruit choice by primates has received little attention. Primates may select certain seed sizes within a species for a number of reasons, e.g. to decrease indigestible seed load or increase pulp intake per fruit. Olive baboons (Papio anubis, Cercopithecidae) are known to select seed size in unripe and mature pods of Parkia biglobosa (Mimosaceae) differentially, so that pods with small seeds, and an intermediate seed number, contribute most to dispersal by baboons. We tested whether olive baboons likewise select for smaller ripe seeds within each of nine additional fruit species whose fruit pulp baboons commonly consume, and for larger seeds in one species in which baboons feed on the seeds. Species differed in fruit type and seed number per fruit. For five of these species, baboons dispersed seeds that were significantly smaller than seeds extracted manually from randomly collected fresh fruits. In contrast, for three species, baboons swallowed seeds that were significantly longer and/or wider than seeds from fresh fruits. In two species, sizes of ingested seeds and seeds from fresh fruits did not differ significantly. Baboons frequently spat out seeds of Drypetes floribunda (Euphorbiaceae) but not those of other plant species having seeds of equal size. Oral processing of D. floribunda seeds depended on seed size: seeds that were spat out were significantly larger and swallowed seeds smaller, than seeds from randomly collected fresh fruits. We argue that seed size selection in baboons is influenced, among other traits, by the amount of pulp rewarded per fruit relative to seed load, which is likely to vary with fruit and seed shape.
File Format	HTM / HTML
ISSN	00328332
Issue Number	4
Volume Number	49
e-ISSN	16107365
Journal	Primates
Language	English
Publisher	Springer
Publisher Date	2008-10-01
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Zoology Choice Behavior Physiology Feeding Behavior Papio Anubis Seeds Animals Cote D'ivoire Observation Species Specificity Statistics, Nonparametric Comparative Study Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology

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Seed size selection by olive baboons

Changes in Baboon Feeding Behavior: Maturity-dependent Fruit and Seed Size Selection within a Food Plant Species

Post-copulatory behavior of olive baboons (Papio anubis) infected by Treponema pallidum

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Monoamine Neurotransmitter Metabolites in the Cerebrospinal Fluid of a Group of Hybrid Baboons (Papio hamadryas × P. anubis)

Seed size selection by olive baboons.

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Seed size selection by olive baboons

Changes in Baboon Feeding Behavior: Maturity-dependent Fruit and Seed Size Selection within a Food Plant Species

Post-copulatory behavior of olive baboons (Papio anubis) infected by Treponema pallidum

Electromyography of wrist and finger flexor muscles in olive baboons (Papio anubis).

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Measuring facial symmetry in the wild: a case study in Olive Baboons (Papio anubis)

Dynamic pressure patterns in the hands of olive baboons (Papio anubis) during terrestrial locomotion: implications for cercopithecoid primate hand morphology.

Friendships between males and lactating females in a free-ranging group of olive baboons (Papio hamadryas anubis): evidence from playback experiments

Monoamine Neurotransmitter Metabolites in the Cerebrospinal Fluid of a Group of Hybrid Baboons (Papio hamadryas × P. anubis)

Seed size selection by olive baboons.