Social interactions of Hanuman langur (Semnopithecus entellus) at Keshabpur and Manirampur of Jessore district of Bangladesh

Alam, Mehtab; Jaman, Mohammad Firoj; Hasan, Md. Mahedi; Rahman, Mokhlesur; Alam, Shayer Mahmood Ibney; Khatun, Ummay Habiba

doi:10.3329/bjz.v42i2.23364

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…The highest proportion of the activity time budget on resting and feeding might be related to easy food availability. As emphasized by Alam et al (2014), resting comprised the highest proportion of the overall activity time budget (41.04%) followed by feeding (33.75%) and grooming (11.73%) in langurs in forest patches under varied human disturbance. High resting and foraging in langurs even in the wild, might be attributed to a habitat condition with enough resources (Minhas et al, 2010;Alam et al, 2014).…”

Section: Activity Budget Of the Captive Langursmentioning

confidence: 96%

“…As emphasized by Alam et al (2014), resting comprised the highest proportion of the overall activity time budget (41.04%) followed by feeding (33.75%) and grooming (11.73%) in langurs in forest patches under varied human disturbance. High resting and foraging in langurs even in the wild, might be attributed to a habitat condition with enough resources (Minhas et al, 2010;Alam et al, 2014). Resting also varies based on the temperature; animals rest more at high and low temperatures than during moderate temperatures and it constitutes the highest proportion of the activity budget in langurs (Li et al, 2020).…”

Section: Activity Budget Of the Captive Langursmentioning

confidence: 96%

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Determinants of Grooming Behavior in Captive Langurs under Human Disturbance: A Case Study from the Central Zoo, Kathmandu, Nepal

Sharma¹,

Shrestha²,

Pandey³

et al. 2022

PUJZ

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of various types, such as playing, huddling, sexual behavior, affiliative behavior (grooming), aggressive behavior, etc. (Kaplan et al., 1991;Khan, 2013). Socio-ecological and hormonal factors are the major drivers of sex-difference in social behavior performance among a wide range of animal species (Meredith, 2013). Social behavior (e.g., grooming) is performed for strong bonding among the group members (social bonding hypothesis) (Arlet et al., 2015), cope with stress (social stress hypothesis) (Marty et al., 2019), and as an indication of willingness to interact (immediate investment hypothesis) (Allanic et al., 2020).

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Section: Activity Budget Of the Captive Langursmentioning

confidence: 96%

Section: Activity Budget Of the Captive Langursmentioning

confidence: 96%

Determinants of Grooming Behavior in Captive Langurs under Human Disturbance: A Case Study from the Central Zoo, Kathmandu, Nepal

Sharma¹,

Shrestha²,

Pandey³

et al. 2022

PUJZ

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Time budget of daily activity of silvery lutung (Trachypithecus cristatus) in coastal forest habitat at Gunung Padang, West Sumatra

Akbar

Perwitasari-Farajallah

Rizaldi

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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Primate’s time budgets are the important aspect to investigate their ecological influences in their habitat. This study collected data on daily activities in a group of silvery lutung (Trachypithecus cristatus) in coastal forest habitat at Gunung Padang, West Sumatra, Indonesia from August 2018 – July 2019, using instantaneous scan sampling method with 10-min intervals. This study analyzed the activity of wild silvery lutungs in study site, with emphasis on the age-sex differences and montly changes in their activity budget. This group spent most of time resting in their daily activity (average 47.50% of the total daytime resting), then followed by moving, feeding, grooming and other activities (conflict, nursing, urinating-defecating, playing, etc.). Resting peaked simultaneously in the morning and peaked back in the afternoon while moving and feeding decreased in this period. Their time budgets showed significant monthly variation: they spent a higher value of time feeding from September - Oktober 2018. They also differed among different sex-age classes: nursing females spent more time for actively moving, whereas adult male and single females devoted more time to resting, feeding, and grooming. These differences in their time budgets may reflect fundamental differences in reproductive biology, parental investment and development among the different age-sex classes.

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The effect of urban and rural habitats on activity budgets of the endangered Northern Plains sacred langur, Semnopithecus entellus (Dufresne, 1797) in Jessore, Bangladesh

et al. 2018

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The Northern Plains sacred langurs are characterized by their ability to adapt to a variety of habitats. We compared activity budgets of two langur groups, one living in the rural area and the other in the center of Keshabpur town. Data was collected from September, 2012 to August, 2013 through continuous focal animal sampling. Types of different food items and its availability in two habitats were mainly responsible for the variations in activity budgets. We found time spent feeding and resting were significantly higher in the urban group whereas, langurs of the rural group spent more time in moving. There were no significant differences in time spent on grooming and other social interactions. Seasonal variations in all major behaviors were significantly affected by groups. Langurs of both groups spent greater time on feeding and resting in the winter than other seasons while moving was at its peak in the summer. Females spent more time in grooming than males while males spent more time in vigilance and interaction than females. The langurs showed a considerable behavioral plasticity in response to variation of habitat and resources, and the knowledge of these differences is important for the conservation and management of this species.

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Social interactions of Hanuman langur (Semnopithecus entellus) at Keshabpur and Manirampur of Jessore district of Bangladesh

Cited by 3 publications

References 16 publications

Determinants of Grooming Behavior in Captive Langurs under Human Disturbance: A Case Study from the Central Zoo, Kathmandu, Nepal

Determinants of Grooming Behavior in Captive Langurs under Human Disturbance: A Case Study from the Central Zoo, Kathmandu, Nepal

Time budget of daily activity of silvery lutung (Trachypithecus cristatus) in coastal forest habitat at Gunung Padang, West Sumatra

The effect of urban and rural habitats on activity budgets of the endangered Northern Plains sacred langur, Semnopithecus entellus (Dufresne, 1797) in Jessore, Bangladesh

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