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All Journal BIO PALEMBANICA
Silvi Dwi Anasari
Ecosystem Impact Foundation
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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First record of Spiny Turtle Heosemys spinosa (Gray, 1831) (Testudines: Geoemydidae) on Babi and Lasia Islands, West Sumatran Islands, Indonesia Silvi Dwi Anasari; Muhammad Iqbal; Tom Amey
BIO PALEMBANICA Vol 2 No 2 (2025): Bio Palembanica
Publisher : Lembaga Penelitian, Pengabdian Kepada Masyarakat dan Kepustakaan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36982/bio.v2i2.6171

Abstract

The Spiny Turtle Heosemys spinosa (Gray, 1831) is an endangered freshwater species found in parts of Southeast Asia, but records from offshore islands are scarce. This study documents the first occurrence of H. spinosa on Babi and Lasia Islands, off the west coast of North Sumatra, Indonesia. Between 15 October and 25 December 2023, nine individuals were observed on Lasia Island, and another on Babi Island in August 2025. The species was found in wet forest floors, mangroves, and leaf-littered habitats within protected forests. Both uninhabited islands retain extensive old-growth forest, suggesting they may serve as refuges for H. spinosa. This record expands the species’ known range and highlights the need for further research and conservation on Indonesia’s lesser-studied satellite islands.
Rediscovery of the Simalur Island Flying Fox Pteropus hypomelanus simalurus (Chiroptera: Pteropodidae) after 113 Years Muhammad Iqbal; Elfira Septiansyah; Silvi Dwi Anasari; Asman Adi Purwanto; Nurina Indriyani; Irda Kusuma; Tom Amey
BIO PALEMBANICA Vol 3 No 1 (2026): Bio Palembanica
Publisher : Lembaga Penelitian, Pengabdian Kepada Masyarakat dan Kepustakaan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36982/bio.v3i1.7296

Abstract

The Simalur Island Flying Fox Pteropus hypomelanus simalurus is a poorly known insular taxon historically recorded from Simeulue Island in the early twentieth century. However, since the original record, no confirmed scientific observations had been reported for more than a century, leading to considerable uncertainty regarding its persistence and conservation status. In April 2026, field surveys across Simeulue Island and several surrounding satellite islands documented two colonies of Pteropus sp. within the archipelago. More than 500 individuals were recorded on 9 April 2026 on Linggam Island, while approximately 100 individuals were observed on 17 April 2026 in Labuhan Bakti, Simeulue Island. The observed flying foxes are provisionally assigned to P. h. simalurus based on external morphology and geographic distribution. Individuals closely matched the original description of the taxon, exhibiting a predominantly black head, dark underparts, black back and rump, and a dull golden to chestnut mantle. Although morphometric and molecular confirmation is still required, the observed individuals correspond closely with the historical description and known range of P. h. simalurus. These records represent the first confirmed scientific observations of this taxon in more than a century and provide the strongest available evidence that P. h. simalurus persists within the Simeulue Archipelago.
Co-Authors Asman Adi Purwanto Elfira Septiansyah Irda Kusuma Muhammad Iqbal Nurina Indriyani Tom Amey