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P. S. Bhatnagar , R. Mathur

Abstract

A rare and prolonged intergeneric association between Rhesus and Langur was observed at Ambagarh Reserve Forest, Jaipur, Northern India. Behavioural observations include grooming of Rhesus males by Langur female and vice-versa and mounting Langur female by Rhesus males. This interaction appears to have a cost-benefit aspect. Advantages to Langur and Rhesus were: assistance to Langurs by Rhesus in crisis situations and benefits of living with a social group to Rhesus. The likely costs to Langurs included stress due to aggression of Rhesus and reduced access to places of shelter and food. Rhesus had the loss in opportunity to interact and mate with a diverse range of conspecifics and stress along with possible brisk of injury and mortality while interacting with dogs and Langurs.

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R. K. Sharma , R. Mathur , Sanjay Sharma

Abstract

The paper reports the annual census record of some reptilian, mammalian, insect and avifauna in the river Chambal falling under National Chambal Sanctuary in Madhya Pradesh. An area of 425 km from Pali to Bhare was surveyed between 25.1.94 to 12.2.94. The complete stretch was divided into eleven sub-stretches and the number of sightings of Gharial, Muggers, Turtles, Dolphins, Otters and Birds were recorded. The survey revealed that in the sanctuary area the number of Gharial and Turtles is plenty followed by Muggers, Dolphins and Otters. The insect fauna was collected from different stretches and were groupwise identified. The hemipteran species dominated in the insect fauna followed by odonates, coleopterans, dipterans and ephemeropterans respectively.

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P. K. Wahal ¹, V. Prakash ¹, D. K. Hazra ¹, R. Mathur ²

Affiliations
1 Affiliation not given, IN
2 Department of Medicine, S.N. Medical College, Agra, IN

Abstract

Abstract not Given.

Keywords

No Keywords given

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P. S. Bhatnagar ¹, R. Mathur ²

Affiliations
1 Zoological Survey of India, M-Block, New Alipore, Kolkata-700 053, IN
2 Department of Zoology, University of Rajasthan, Jaipur 302004, IN

Abstract

Piny behaviour in free-living langurs has been studied at Ambagnrh Reserve Forest, near Jaipur, India using focal sampling (Altmann, 1974) for 317 hours on a unimale group of langurs of 102 individuals. Infants were classified as young (dark pelage, birth < 6 months) and old (grey pelage, 6 months to 12-15 months). Observations were recorded in 3 states: infant with mother (state 0), infant less than 2 feet away from mother (state 1) and infant more than 2 feet away from mother (state 2). Unlike old infants, young infants played while on mother and old infants played away from mother and in state 2, play alone, play with other infant and play with juvenile differed significantly (x² = 18.01, df = 2, p < 0.01). Both natural and sexual .selection seem to have played a role. Those patterns have evolved, which are adaptive. Play is replaced by grooming (which strengthens social bonding) in non-human primate and socialization in humans.These traits help in selecting potential mates. Comparison of human and langur infants indicates that young langur infants are comparable to 1st year and toddlers while old langur infants are similar in play profile to preschoolars and elementary . Influences of habitat quality on play behaviour in primates have been discussed.

Keywords

Comparntive Play, Infant, Langur, Human, Habitat Quality.

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