Spatial Distribution and Exploitation of Trees Gouged by Common Marmosets (Callithrix jacchus)

Title

Spatial Distribution and Exploitation of Trees Gouged by Common Marmosets (Callithrix jacchus)

Creator

Thompson C L; Robl N J; Melo L C; Valena-Montenegro M M; Valle Y B M; de Oliveira M A B; Vinyard C J

Publisher

International Journal of Primatology

Date

2013
2013-02

Description

Resource distribution shapes many aspects of primate behavioral ecology. Though the spatial patterning of fruits, leaves, and insects has been explored among primate foods, comparatively less is known about exudate distributions. Tree exudates are a renewable resource, provide long-term evidence of exploitation, and may be selectively exploited to manipulate spatial distribution. We assessed the spatial patterning of trees gouged by common marmosets (Callithrix jacchus) to determine if they exhibit a uniform, random, or clumped distribution. We also asked whether marmosets selectively gouge trees in home range centers, which may afford them exclusive access to exudates. We explored whether spatial or physical characteristics of trees predict how intensely gouged trees were exploited. The mean nearest neighbor distance of gouged trees was significantly closer than expected for a random distribution and Ripley's K-function showed that gouged trees were clumped across all spatial scales in our study area. Clumping may enable marmosets to reduce day and home ranges and facilitate repeated gouging of trees. Gouged trees were not closer to marmosets' home range centers than peripheries, nor were centrally located trees more intensely gouged. Increased gouging intensity was associated with larger tree circumferences, although this effect was primarily driven by interspecific differences in circumference. Although marmosets may benefit from exploiting clumped exudates, they do not concentrate gouging in areas where they are more likely to gain exclusive access. Species-specific tree characteristics such as exudate quality and/or bark properties may play a larger role in determining gouging patterns than intergroup feeding competition.

Subject

alouatta-palliata; callitrichids; Exudativory; food resource distribution; GIS; group-size; home-range use; howler monkeys; Intergroup competition; japanese macaques; monkeys erythrocebus-patas; patch size; Renewable; Resource distribution; resources; social-organization; territorial defense; Zoology

Format

Journal Article

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Rights

Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).

Pages

65-85

Issue

1

Volume

34

Citation

Thompson C L; Robl N J; Melo L C; Valena-Montenegro M M; Valle Y B M; de Oliveira M A B; Vinyard C J, “Spatial Distribution and Exploitation of Trees Gouged by Common Marmosets (Callithrix jacchus),” NEOMED Bibliography Database, accessed September 17, 2021, https://neomed.omeka.net/items/show/7347.

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