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Measures of Sociality, Social Organization and Population Structure in Blackbuck, Antilope cervicapra (Linnaeus, 1758)

Measures of Sociality, Social Organization and Population Structure in Blackbuck, Antilope... Grouping characteristics and population structure of Blackbuck was studied in semi-arid region of Haryana in district Hisar during 48 fortnightly periodic visits from March, 2017 to February, 2019. Following scan sampling method; total 130 blackbuck sightings were recorded varying from one to seven sightings per visit with group size ranging 1 to 58 individuals per sighting. The overall mean group size and mean crowding of blackbuck was 13.19 ± 1.29 S.E. and 29.66 (N = 1715 individuals), respectively. The mean crowding value was approximately two times greater than the mean group size of blackbuck whether solitary animals were included or excluded. Non-significant difference were observed in group size of blackbuck between two years (Mann Whitney U test, P = 0.750). The average adult male: adult female: fawn ratio was 25.54: 100: 10.09 (N = 1062 individuals). Skewed female ratio was recorded. Six different types of social organizations were observed in which unimale-unifemale herd was recorded in Summer and Monsoon seasons reflecting their rutting period. On the basis of food availability, seasonal variations in the habitat preferences of blackbuck were recorded. The constant monitoring of sociality in blackbuck will be helpful in understanding population distribution which further helps in planning and establishment of effective conservation strategies for this endemic species. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Proceedings of the Zoological Society Springer Journals

Measures of Sociality, Social Organization and Population Structure in Blackbuck, Antilope cervicapra (Linnaeus, 1758)

Proceedings of the Zoological Society , Volume 74 (3) – Jul 1, 2021

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Publisher
Springer Journals
Copyright
Copyright © Zoological Society, Kolkata, India 2021
ISSN
0373-5893
eISSN
0974-6919
DOI
10.1007/s12595-021-00371-9
Publisher site
See Article on Publisher Site

Abstract

Grouping characteristics and population structure of Blackbuck was studied in semi-arid region of Haryana in district Hisar during 48 fortnightly periodic visits from March, 2017 to February, 2019. Following scan sampling method; total 130 blackbuck sightings were recorded varying from one to seven sightings per visit with group size ranging 1 to 58 individuals per sighting. The overall mean group size and mean crowding of blackbuck was 13.19 ± 1.29 S.E. and 29.66 (N = 1715 individuals), respectively. The mean crowding value was approximately two times greater than the mean group size of blackbuck whether solitary animals were included or excluded. Non-significant difference were observed in group size of blackbuck between two years (Mann Whitney U test, P = 0.750). The average adult male: adult female: fawn ratio was 25.54: 100: 10.09 (N = 1062 individuals). Skewed female ratio was recorded. Six different types of social organizations were observed in which unimale-unifemale herd was recorded in Summer and Monsoon seasons reflecting their rutting period. On the basis of food availability, seasonal variations in the habitat preferences of blackbuck were recorded. The constant monitoring of sociality in blackbuck will be helpful in understanding population distribution which further helps in planning and establishment of effective conservation strategies for this endemic species.

Journal

Proceedings of the Zoological SocietySpringer Journals

Published: Jul 1, 2021

Keywords: Age structure; Crowding; Flocker 1.0; Group size; Habitat preference

References