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40
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Text
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<a href="http://doi.org/10.1007/s10764-012-9647-7" target="_blank" rel="noreferrer noopener">http://doi.org/10.1007/s10764-012-9647-7</a>
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Pages
65-85
Issue
1
Volume
34
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Title
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Spatial Distribution and Exploitation of Trees Gouged by Common Marmosets (Callithrix jacchus)
Publisher
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International Journal of Primatology
Date
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2013
2013-02
Subject
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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
Creator
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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
Description
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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.
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<a href="http://doi.org/10.1007/s10764-012-9647-7" target="_blank" rel="noreferrer noopener">10.1007/s10764-012-9647-7</a>
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Journal Article
2013
alouatta-palliata
callitrichids
de Oliveira M A B
Exudativory
food resource distribution
GIS
group-size
home-range use
howler monkeys
Intergroup competition
international journal of primatology
japanese macaques
Journal Article
Melo L C
monkeys erythrocebus-patas
patch size
Renewable
Resource distribution
resources
Robl N J
social-organization
territorial defense
Thompson C L
Valena-Montenegro M M
Valle Y B M
Vinyard C J
Zoology