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<p>This commentary critically evaluates the paper by Chowdhary et al. (2026) regarding the expansion of pine and decline of Himalayan oak forests. It argues that the authors have overlooked the principal ecological driver underlying oak–pine dynamics in the Himalayas, viz. chronic anthropogenic disturbance. The spread of chir pine into oak-dominated landscapes is not primarily a consequence of climate change, allelopathy, or genetic erosion, but rather the result of long-term human use of oak forests through fuelwood extraction, lopping, grazing, litter removal, and recurrent fire. This paper highlights a taxonomic error in the original study, noting that the oak species discussed is <i>Quercus leucotrichophora</i> A.Camus and not <i>Quercus oblongata</i> D.Don. The commentary further questions the overreliance on species distribution models divorced from socio-ecological realities and emphasizes the need to integrate disturbance ecology, autecology, and accurate taxonomy into future Himalayan forest research and conservation planning.</p>

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Commentary on ‘Pinus roxburghii Sarg. expansion drives genetic erosion and ecological collapse of keystone Quercus oblongata D. Don forests in the Western Himalaya’ (Chowdhary et al. 2026)

  • 期刊论文

  • 发表日期：

    2026年5月14日

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  • Rajesh Thadani

摘要

This commentary critically evaluates the paper by Chowdhary et al. (2026) regarding the expansion of pine and decline of Himalayan oak forests. It argues that the authors have overlooked the principal ecological driver underlying oak–pine dynamics in the Himalayas, viz. chronic anthropogenic disturbance. The spread of chir pine into oak-dominated landscapes is not primarily a consequence of climate change, allelopathy, or genetic erosion, but rather the result of long-term human use of oak forests through fuelwood extraction, lopping, grazing, litter removal, and recurrent fire. This paper highlights a taxonomic error in the original study, noting that the oak species discussed is Quercus leucotrichophora A.Camus and not Quercus oblongata D.Don. The commentary further questions the overreliance on species distribution models divorced from socio-ecological realities and emphasizes the need to integrate disturbance ecology, autecology, and accurate taxonomy into future Himalayan forest research and conservation planning.