First records of Mops johorensis (Dobson, 1873), Northern Free-tailed Bat (Chiroptera, Molossidae), from Borneo, with new information on their genetics and echolocation calls

Faisal Ali, Anwarali Khan and Muhd Amsyari, Morni and Julius William, Dee and Jayaraj Vijaya, Kumaran and Emy Ritta, Jinggong and Praveena, Rajasegaran and Qhairil Shyamri, Rosli and Norfarhana, Mazlan and Wan Nursyafinaz, Wan Azman and Siti Nurbaidzuri, Reli @ Raily and Ummu Safiyyah, Daud and Amirrah, Amat and Lawrence Alan, Bansa and Azniza, Mahyudin and Noor Haliza, Hasan and Juliana, Senawi and Isham, Azhar (2025) First records of Mops johorensis (Dobson, 1873), Northern Free-tailed Bat (Chiroptera, Molossidae), from Borneo, with new information on their genetics and echolocation calls. Check List, 21 (5). pp. 1047-1058. ISSN 1809-127X

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Abstract

This study presents the first confirmed records of Mops johorensis (Dobson, 1873) (Chiroptera, Molossidae) from Borneo. Specimens were recorded at three sites: Sabah (Sungai Kangkawat, 50 m a.s.l) and Sarawak (Lubok Antu, 30 m a.s.l and Mount Penrissen, 1200 m a.s.l). Echolocation analysis revealed site-based variation in call frequencies. Morphological comparisons showed subtle differences between Bornean and Peninsular populations. Genetic analysis using the mitochondrial COI gene showed minimal divergence between Bornean and Peninsular individuals. Spatial modelling identified hotspots for Molos-sidae in northern Sabah and central Sarawak, with habitat suitability strongly influenced by bat and cave density, climate, and land use.

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