Seasonal Variation in the Diet of Himalayan Grey Langur (Semnopithecus ajax) in Machiara National Park, Azad Jammu and Kashmir, Pakistan

Asif, Fiza; Awan, M. S.; Ashraf, Noman; Shafi, Nuzhat; Rauf, Abdul; Bano, Khizra; Razzaq, Muhammad Yasar; Dar, Naeem Iftikhar

doi:10.17582/journal.pjz/2019.51.6.2353.2358

Cited by 1 publication

(1 citation statement)

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“…One such species, first reported by Sir Walter R. Lawrence (Lawrence, 1895), is the Endangered Kashmir gray langur Semnopithecus ajax (Photograph 1, for additional photographs refer to supporting information) (https://www.iucnredlist.org/species/39833/17943210), occurring in the North‐Western Himalaya and extending from Himachal Pradesh in the east (Singh & Thakur, 2020) to Jammu and Kashmir (Jahangeer et al, 2019; Khaleel, 2020; Minhas et al, 2012; Mir et al, 2022; Sharma & Ahmed, 2017) in the west. Despite a recent integrative taxonomic study (Arekar et al, 2021) proposing that Himalayan langurs should be considered a single species ( Semnopithecus schistaceus ), the International Union for Conservation of Nature (IUCN) continues to identify langurs from Northwestern Himalayas as a separate species, known as the Kashmir gray langur ( S. ajax ).…”

Section: Introductionmentioning

confidence: 99%

Population assessment of the Endangered Kashmir Gray Langur (Semnopithecus ajax, Pocock 1928) using the double‐observer method

Hameed,

Bashir,

Ali

et al. 2024

American J Primatol

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Primates are among the most threatened taxa globally, therefore, there is a need to estimate and monitor their populations. Kashmir Gray Langur Semnopithecus ajax is an endangered species for which there is no population estimate. We used double‐observer method to estimate its population size in the Kashmir region of North‐Western Himalaya. We walked 1284 km across 31 survey blocks spanning all three divisions of Kashmir viz., North, Central, and South Kashmir, covering an area of 411 km2. We counted a minimum of 1367 individual langurs from 27 groups. The detection probability for observer 1 (0.719) and observer 2 (0.656) resulted in a population estimate of 1496 (95% confidence interval [CI] 1367–1899) across 30 groups (with a mean group size of 51), giving a density estimate of 3.64 (3.33–4.62) langurs/km². We found double‐observer surveys to be suitable for the population estimation of langurs, and we make recommendations on how to effectively conduct primate surveys, especially in mountainous ecosystems. Our records extend the species distribution range beyond stated by the International Union for Conservation of Nature. Our findings also highlight that the Kashmir Himalaya is a stronghold of the species, where conservation efforts should focus.

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