Seed-eating by red leaf monkeys (Presbytis rubicunda) in dipterocarp forest of northern borneo

Davies, Glyn

doi:10.1007/bf02547577

Cited by 152 publications

(102 citation statements)

References 32 publications

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“…Feeding ecology Granivorous, frugivorous/folivorous; 37.6% leaves, 30.1% seeds, 49.3% fruit, 11.1% fl owers, and 1.1% others (Davies 1984), 61% of diet fruit and seeds (van Schaik et al 1992). Ate seeds from 48 species of trees and lianas and whole fruits from 24 plant species.…”

Section: Maroon Leaf Monkey Presbytis Rubicundamentioning

confidence: 99%

Section: Maroon Leaf Monkey Presbytis Rubicundamentioning

confidence: 99%

“…Population status and densities on Borneo Very common; estimated at >1,000,000 individuals by Nijman and Meijaard (unpubl. ); density: 18.9 individuals/km 2 (Davies 1984); average density of 3 studies is 20.7 (van Schaik et al 1992); average group density of 3 studies is 2.4 groups/km 2 (van Schaik et al 1992); average group size: 7.0 (range 3-10) (Davies 1984); 6.1 (range 3-8) (Supriatna et al 1986); average group size of 3 studies is 8.0 (van Schaik et al 1992).…”

Section: Maroon Leaf Monkey Presbytis Rubicundamentioning

confidence: 99%

“…These were also largely exploited for their seeds (Davies 1991). Analyses imply that Red Leaf Monkeys select for leaves that are high in protein and low in digestibility-retarding fi bre ; seeds had very low levels of condensed tannins and low acid detergent fi bre levels, with correspondingly high digestibility (Davies 1991); fi gs only contribute 1% of diet (Davies 1991); minor diet items (<1%) include soil from termite mounds, bamboo pith, and insects (generally termites) (Bennett & Davies 1994;Davies 1991).Social structure One male harems/ extra male groups (Davies 1984); 88.9% one male groups; 11.1% monogamous (Supriatna et al 1986); Average group size: 7.0 (range 3-10) (Davies 1984); 6.1 (range 3-8) (Supriatna et al 1986); Average of 3 studies is 8.0 (van Schaik et al 1992).Breeding ecology Unimale social system and a polygynous mating system (Davies 1987; Suprianta et al 1986). Groups are composed of one adult male, one or more adult females, subadults, juveniles, and infants (Suprianta et al 1986).…”

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Life after logging: reconciling wildlife conservation and production forestry in Indonesian Borneo

Meijaard¹,

Sheil²,

Nasi³

et al. 2005

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This book has been published with fi nancial support from UNESCO, ITTO, and SwedBio. The authors are responsible for the choice and presentation of the facts contained in this book and for the opinions expressed therein, which are not necessarily those of CIFOR, UNESCO, ITTO, and SwedBio and do not commit these organisations. The review and synthesis refl ect inputs from many organisations, including MoF, LIPI, WCS, TNC, WWF and CIRAD. This review has also benefi ted from research, and related activities, supported by grants from ITTO, the European Commission, the World Bank, and the MacArthur Foundation. The opinions expressed in this book are not endorsed by any of these organisations. ISBN 979-3361-56-5The Center for International Forestry Research (CIFOR) was established in 1993 as part of the Consultative Group on International Agricultural Research (CGIAR) in response to global concerns about the social, environmental and economic consequences of forest loss and degradation. CIFOR research produces knowledge and methods to improve the well-being of forest-dependent people and to help countries manage their forests wisely for sustainable benefi ts. This research is conducted in more than two dozen countries, in collaboration with numerous partners. Since it was founded, CIFOR has also played a central role in infl uencing global and national forestry policies. National Library of Indonesia Cataloging-in-Publication DataLife after logging: Reconciling wildlife conservation and production forestry in Indonesian Borneo/ Meijaard, E., Sheil, D., Nasi, R., Augeri, D., Rosenbaum, B., Iskandar, D., Setyawati, T., Lammertink, M., Rachmatika, I., Wong, A., Soehartono, T., Stanley, S. and O'Brien, T. 308Life after logging | ix Figure 9. Sundasciurus lowii, seen here feeding on Artocarpus fruits, is a common squirrel of undisturbed and disturbed lowland forests 78 Figure 10. Malay Civet (Viverra tangalunga), one of the Bornean civet species that are negatively affected by the effects of timber harvest 87 Figure 11. Limnonectes leporinus, a Bornean endemic generally found near large or medium-sized streams 101 Figure 12. Numbers of amphibians found in an unlogged area in Danum Valley, a area under reduced impact logging (RIL), and an area under conventional logging (CL) 102 Figure 13. Box-and-whiskers plot of logging tolerance in relation to species age 118 Figure 14. Discriminant analysis of 3 variables (number of small Sundaic islands on which species occurs (after Meijaard 2003b), number of species per genus, and number of subspecies per species) and their predictive value for the sensitivity of mammal species to logging 119 Figure 15. Box-and-whiskers plot of categories for tolerance to logging in relation to distribution on small islands 120 Figure 16. Box-and-whiskers plot of categories for tolerance to logging in relation to number of young per nest or litter 120 Figure 17. Column charts of sensitivity to logging in relation to distribution range 121 Figure 18. Column charts of sensitivity to logging in relat...

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Section: Maroon Leaf Monkey Presbytis Rubicundamentioning

confidence: 99%

Section: Maroon Leaf Monkey Presbytis Rubicundamentioning

confidence: 99%

Section: Maroon Leaf Monkey Presbytis Rubicundamentioning

confidence: 99%

mentioning

confidence: 99%

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Life after logging: reconciling wildlife conservation and production forestry in Indonesian Borneo

Meijaard¹,

Sheil²,

Nasi³

et al. 2005

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“…Nevertheless, BrandonJones et al (2004) synonymised T. cristatus with T. auratus on the basis of the similarity of pelage color of some Borneo specimens of T. cristatus with those of T. auratus from east Java. The second reason was that the red or maroon surili (Presbytis rubicunda), another leaf monkey, occurs in Sabah where it is in some locations sympatric with T. cristatus (Davies, 1991). These sources of possible confusion led Harding (2010) This is about 250 river km, or 115 straight-line km, up the river.…”

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Red morph of silvered lutung (<i>Trachypithecus cristatus</i>) rediscovered in Borneo, Malaysia

Harding

2011

TAPROBANICA

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Seed handling in chimpanzees (Pan troglodytes) and redtail monkeys (Cercopithecus ascanius): Implications for understanding hominoid and cercopithecine fruit-processing strategies and seed dispersal

Lambert

1999

Am. J. Phys. Anthropol.

144

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Primates are confronted with an array of constraints in feeding on fruit, including the removal of adhesive, energy-rich pulp from seeds. In this paper, I discuss how primates meet this challenge and present data on the fruit-processing and seed-handling behavior of chimpanzees and redtail monkeys in Kibale National Park, Uganda. These data are then related to these species' services as seed dispersers. Particular attention was paid to the methods by which primates removed pulp from seeds, the density of seed clumps that they deposited (by spitting, dropping, or defecating) to the forest floor, and the distance seeds were moved from parent trees. Distance and density differences in chimpanzee and redtail seed dispersal resulted from distinct fruit-processing and seed-handling methods. It was observed, in general, that redtail monkeys engaged in fine oral processing and were seed spitters: most seeds were dispersed in close proximity to parent trees (84% of spat seeds < 10 m of parent tree), and deposited singly (100% seeds spat singly). In contrast, chimpanzees were coarse fruit processors and seed swallowers: seeds were defecated in denser clumps (e.g., a mean of 149 large seeds/dung sample and hundreds of small seeds/dung sample), far from parent trees. I evaluate the factors that shape patterns of fruit processing in hominoids and cercopithecines, and argue that the observed seed handling differences can be attributed to differences in digestive retention times, oral anatomy, and alternative mechanisms by which to avoid the cost of seed ballast.

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Seed-eating by red leaf monkeys (Presbytis rubicunda) in dipterocarp forest of northern borneo

Cited by 152 publications

References 32 publications

Life after logging: reconciling wildlife conservation and production forestry in Indonesian Borneo

Life after logging: reconciling wildlife conservation and production forestry in Indonesian Borneo

Red morph of silvered lutung (<i>Trachypithecus cristatus</i>) rediscovered in Borneo, Malaysia

Seed handling in chimpanzees (Pan troglodytes) and redtail monkeys (Cercopithecus ascanius): Implications for understanding hominoid and cercopithecine fruit-processing strategies and seed dispersal

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