Feeding Ecology of Trachypithecus pileatus in India

Solanki, G. S.; Kumar, Awadhesh; Sharma, B. K.

doi:10.1007/s10764-008-9234-0

Cited by 25 publications

(17 citation statements)

References 15 publications

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“…The three study species consumed fruits mostly in the wet season, although the consumption of some fruit items by lion-tailed macaques was highly seasonal, irrespective of their availability. It has been reported earlier, however, that, unlike Hanuman langurs, some other colobine monkeys, such as capped langurs, consumed flowers as much as fruits [Solanki et al, 2008]. During the post-monsoon season, flowers were a major resource for lion-tailed macaques and bonnet macaques in other parts of the Western Ghats also [Ganesh and Davidar, 1997;Sushma, 2004].…”

Section: Discussionmentioning

confidence: 99%

Diet and Dietary-Niche Breadth of Diurnal Rain Forest Primates in the Central Western Ghats, India

Roy¹,

Singh²,

Singh³

2012

IJFP

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We studied the feeding ecology of 3 sympatric primate species, the lion-tailed macaque (Macaca silenus), bonnet macaque (Macaca radiata) and Hanuman langur (Semnopithecus entellus), in a tropical rain forest of the Central Western Ghats, India. Since the availability of leaves is much higher than that of fruits, we expected that the primarily folivorous langurs would use a larger number of resources than the primarily frugivorous macaques. Since fruits are a relatively total resource, unlike leaves, of which only selected parts are consumed, we expected that the primarily frugivorous macaques would use resources more proportionately than the folivorous langurs, resulting in a wider food niche breadth in macaques. We collected data on these primate species over a period of 2 years using scan sampling in a contiguous rain forest. We calculated Levin’s standardised food niche breadth for each species. Langurs used a larger number of tree species than macaques, but their niche breadth was narrower than that of macaques. The majority of their diet (over 50%) came from only a few trees in the case of all three primate species. Long-term data are provided herein for the first time on the feeding ecology of bonnet macaques and Hanuman langurs in a tropical rain forest.

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Section: Discussionmentioning

confidence: 99%

Diet and Dietary-Niche Breadth of Diurnal Rain Forest Primates in the Central Western Ghats, India

Roy¹,

Singh²,

Singh³

2012

IJFP

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“…Barring the predominantly terrestrial stump-tailed and rhesus macaques, all the primates are mostly arboreal, with the hoolock gibbon being entirely so. The capped langur is mainly folivorous (Solanki et al 2008), whereas the remaining species are primarily frugivorous (Roonwal & Mohnot 1977). Insects and roots, however, constitute a significant part of pigtailed and stump-tailed macaque diets, respectively (N.S., personal observation).…”

Section: Study Areamentioning

confidence: 99%

Local and Landscape Correlates of Primate Distribution and Persistence in the Remnant Lowland Rainforests of the Upper Brahmaputra Valley, Northeastern India

Sharma

Madhusudan

Sinha

2013

Conservation Biology

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Habitat fragmentation affects species distribution and abundance, and drives extinctions. Escalated tropical deforestation and fragmentation have confined many species populations to habitat remnants. How worthwhile is it to invest scarce resources in conserving habitat remnants within densely settled production landscapes? Are these fragments fated to lose species anyway? If not, do other ecological, anthropogenic, and species-related factors mitigate the effect of fragmentation and offer conservation opportunities? We evaluated, using generalized linear models in an information-theoretic framework, the effect of local- and landscape-scale factors on the richness, abundance, distribution, and local extinction of 6 primate species in 42 lowland tropical rainforest fragments of the Upper Brahmaputra Valley, northeastern India. On average, the forest fragments lost at least one species in the last 30 years but retained half their original species complement. Species richness declined as proportion of habitat lost increased but was not significantly affected by fragment size and isolation. The occurrence of western hoolock gibbon (Hoolock hoolock) and capped langur (Trachypithecus pileatus) in fragments was inversely related to their isolation and loss of habitat, respectively. Fragment area determined stump-tailed (Macaca arctoides) and northern pig-tailed macaque occurrence (Macaca leonina). Assamese macaque (Macaca assamensis) distribution was affected negatively by illegal tree felling, and rhesus macaque (Macaca mulatta) abundance increased as habitat heterogeneity increased. Primate extinction in a fragment was primarily governed by the extent of divergence in its food tree species richness from that in contiguous forests. We suggest the conservation value of these fragments is high because collectively they retained the entire original species pool and individually retained half of it, even a century after fragmentation. Given the extensive habitat and species loss, however, these fragments urgently require protection and active ecological restoration to sustain this rich primate assemblage.

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“…Previous studies also have shown that Asian colobines spend larger proportions of time resting (Stanford 1991;Davies and Oates 1994;Huang et al 2003;Li and Rogers 2004;Zhou et al 2007). For example, the white-headed langurs (Trachypithecus leucocephalus) and capped langurs (T. pileatus) spent 50% and 53% of their day resting, respectively (Li et al 2003;Solanki et al 2008). The activity patterns of primates can be affected by the seasonal changes in food availability (Oates 1987).…”

Section: Discussionmentioning

confidence: 98%

Short Communication: Activity budget and diet in silvery lutung Trachypithecus cristatus at Gunung Padang, West Sumatra, Indonesia

et al. 2019

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Abstract. Akbar MA, Rizaldi, Novarino W, Perwitasari-Farajallah D, Tsuji Y. 2019. Activity budget and diet in silvery lutung Trachypithecus cristatus at Gunung Padang, West Sumatra, Indonesia. Biodiversitas 20: 719-724. We studied the activity budget and diet of a group of wild silvery lutungs (Trachypithecus cristatus) in Gunung Padang, West Sumatra, Indonesia, with special attention to age-and sex-related differences. We conducted behavioral observations between July and October 2016, and found that resting constituted the greatest proportion of their daily activities (46%), followed by moving (38%), feeding (12%), and grooming (4%). Resting peaked between 11 am and 1 pm, while moving decreased in this period. The juveniles showed higher percentage of moving and lower percentage of feeding than the adults. The adult males showed higher percentage of grooming than the adult females. Finally, the nursing females showed lower percentage of resting and higher percentage of grooming than single females. During the study, we recorded 14 plant species consumed by the lutungs. Their dietary composition was composed of 63% foliage and 37% fruit. Both the foliage and fruits of Ficus variegata, a plant species belonging to the family Moraceae, was the most consumed. Foliage was frequently consumed by the nursing females and juveniles. The adult males were frequently observed to eat fruit during the study period. No fruit was consumed by the nursing females.

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Feeding Ecology of Trachypithecus pileatus in India

Cited by 25 publications

References 15 publications

Diet and Dietary-Niche Breadth of Diurnal Rain Forest Primates in the Central Western Ghats, India

Diet and Dietary-Niche Breadth of Diurnal Rain Forest Primates in the Central Western Ghats, India

Local and Landscape Correlates of Primate Distribution and Persistence in the Remnant Lowland Rainforests of the Upper Brahmaputra Valley, Northeastern India

Short Communication: Activity budget and diet in silvery lutung Trachypithecus cristatus at Gunung Padang, West Sumatra, Indonesia

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