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9 September 2021 Are Northeastern Forests of Bangladesh Empty? Insights from Camera-Trapping into Spatiotemporal Activity Pattern of Mammals in a Semi-Evergreen National Park
Tania Zakir, Harish Debbarma, Rafia Mahjabin, Rasel Debbarma, Zaber Khan, Md. Mizanur Rahman Minu, Fatima Tuz Zahura, Muntasir Akash
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Abstract

Bangladesh holds 191 km2 semi-evergreen northeastern (NE) forests where systematic camera-trapping has never been carried out. An effort of 587 trap nights in Satchari National Park, a NE forest, revealed ten carnivores, two ungulates, two primates, two rodents, and one treeshrew (12 threatened in Bangladesh; of which three globally threatened; dhole and northern treeshrew were new discoveries). Pairwise circadian homogeneity, coefficient of temporal overlap (fi01_01.gif ), and spatial cooccurrence pattern were measured. High values (fi01_01.gif > 0.75) were noted in 36 pairwise comparisons, and positive spatial association (Pgt < 0.05) in five. Anthropogenic activities overlapped with diurnal species (0.65 ≤ fi01_01.gif1 ≤ 0.88) but stood dissimilar (P < 0.05 in the Mardia-Watson-Wheeler test) except for yellow-throated marten–livestock movement (fi01_01.gif1 = 0.70). Although species-specific dietary or temporal preference explains the observed associations, low detection of the jungle cat (2) compared to the leopard cat (56), absence of the fishing cat, homogenous activity (P > 0.05) in yellow-throated marten–crab-eating mongoose (fi01_01.gif1 = 0.83) and rhesus macaque–pig-tailed macaque (fi01_01.gif4 = 0.93) pairs need further research. These insights are remarkable as NE forests, the western cusp of the Indo-Burma biodiversity hotspot, are contrarily deemed ‘empty’, receiving least scientific investments.

© The Mammal Society of Japan
Tania Zakir, Harish Debbarma, Rafia Mahjabin, Rasel Debbarma, Zaber Khan, Md. Mizanur Rahman Minu, Fatima Tuz Zahura, and Muntasir Akash "Are Northeastern Forests of Bangladesh Empty? Insights from Camera-Trapping into Spatiotemporal Activity Pattern of Mammals in a Semi-Evergreen National Park," Mammal Study 46(4), 323-339, (9 September 2021). https://doi.org/10.3106/ms2020-0114
Received: 30 November 2020; Accepted: 1 June 2021; Published: 9 September 2021
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