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All Journal Biodiversitas Journal of Biological Diversity
NATCHA SUTJARITJAI
Queen Sirikit Botanic Garden, the Botanical Garden Organization. Mae Rim 50180, Chiang Mai, Thailand
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Diversity, distribution, ethnobotany, and taxonomic revision of the genus Senegalia (Fabaceae) in Thailand PRATEEP PANYADEE; RODRIGO DUNO DE STEFANO; CHARAN LEERATIWONG; SAKUNTALA NINKAEW; WITSANU SAISORN; JIRATTHI SATTHAPHORN; NATCHA SUTJARITJAI; HENRIK BALSLEV
Biodiversitas Journal of Biological Diversity Vol. 27 No. 2 (2026)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d270236

Abstract

Abstract. Panyadee P, De Stefano RD, Leeratiwong C, Ninkaew S, Saisorn W, Satthaphorn J, Sutjaritjai N, Balslev H. 2026. Diversity, distribution, ethnobotany, and taxonomic revision of the genus Senegalia (Fabaceae) in Thailand. Biodiversitas 27 (2): d270236. https://doi.org/10.13057/biodiv/d270236. Senegalia (Fabaceae) represents the most diverse group of armed legumes in Thailand and has not been taxonomically revised since Nielsen’s (1985) treatment under Acacia. Here, we present the first comprehensive taxonomic revision of Senegalia in Thailand, integrating morphological and ethnobotanical evidence in accordance with current generic concepts. Field surveys and extensive herbarium studies revealed 14 species comprising 16 taxa, belonging to two sections, sect. Senegalia and sect. Monacanthea. Two taxa (Senegalia catechu and Senegalia pennata subsp. pennata) are introduced and now naturalized, while 13 species are native to the country. Senegalia pennata subsp. insuavis, previously regarded as exotic, is confirmed as native based on its occurrence in undisturbed habitats, whereas S. pruinescens is excluded due to misidentification. Species richness is highest in northern and peninsular Thailand. Six taxa (five species) have documented ethnobotanical uses, including food, medicine, dyes, and fish poison. Vegetative characters, particularly petiole gland morphology, leaflet venation, and stipule form prove reliable for field identification and are emphasized to facilitate practical use. This revision presents an updated taxonomic framework and serves as a reference for botanical, ethnobotanical, and conservation studies of Senegalia in Thailand.
Long-term dynamics of fire-affected pine-dipterocarp forest in Northern Thailand RAPEEPORN KANTASRILA; JANJIRA MUENREW; WORANART THAMMARONG; NATCHA SUTJARITJAI; WIRATA RUJICHAIPIMON; SARAYUT RAKARCHA; WITTAYA PONGAMORNKUL; KRITTAPON MOOLLA; PRATEEP PANYADEE
Biodiversitas Journal of Biological Diversity Vol. 27 No. 2 (2026)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d270211

Abstract

Abstract. Kantasrila R, Muenrew J, Thammarong W, Sutjaritjai N, Rujichaipimon W, Rakarcha S, Pongamornkul W, Moolla K, Panyadee P. 2026. Long-term dynamics of fire-affected pine-dipterocarp forest in Northern Thailand. Biodiversitas 27 (2): d270211. https://doi.org/10.13057/biodiv/d270211. Fire disturbance is a critical ecological driver in Southeast Asian tropical forests, yet long-term empirical evidence of repeated fire regime remains limited. This study examined 13-year post-fire dynamics in a pine-dipterocarp forest using a 1-ha permanent plot at Queen Sirikit Botanic Garden, Northern Thailand. Trees with Diameter at Breast Height (DBH) ≥ 4.5 cm were monitored in 2012 and 2025, along with saplings (1.5-4.4 cm DBH) in the latter census. Species richness increased from 40 to 47 species, and basal area rose from 22.52 to 26.06 m² ha-¹, indicating structural recovery. Recruitment (1.63% yr-¹) exceeded mortality (1.15% yr⁻¹), suggesting demographic resilience. While dominant canopy species such as Pentacme siamensis, Quercus kingiana, Dipterocarpus obtusifolius, and Pinus kesiya persisted, the sapling layer was dominated by fast-growing deciduous species (Dalbergia suthepensis, Wendlandia tinctoria, and Lithocarpus sootepensis), indicating contrasting regeneration composition between life stages under repeated fire. Aboveground biomass increased from 135.57-159.21 to 148.05-173.62 t ha-¹ across allometries, with carbon stocks rising from 80.92-95.03 to 88.37-103.63 t C ha-¹. These results reflect net accumulation of biomass and carbon between 2012 and 2025 in the fire-affected forest. The study provides the first long-term evidence of demographic and carbon recovery in a fire-prone forest ecosystem in Thailand, underscoring the importance of permanent plot monitoring for adaptive fire management and climate change mitigation.
Co-Authors CHARAN LEERATIWONG HENRIK BALSLEV JANJIRA MUENREW JIRATTHI SATTHAPHORN KRITTAPON MOOLLA PRATEEP PANYADEE RAPEEPORN KANTASRILA RODRIGO DUNO DE STEFANO SAKUNTALA NINKAEW SARAYUT RAKARCHA WIRATA RUJICHAIPIMON WITSANU SAISORN WITTAYA PONGAMORNKUL WORANART THAMMARONG