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<p>The atmospheric climate warming of Earth is a critical factor in the survival of life forms, as it disrupts ecosystems and alters biodiversity patterns. Among the various indicators, a prominent climate-warming signal is the upward migration of plant species to higher latitudes, a trend increasingly observed in montane habitats. The present study documents a notable instance of such a species range shift: the poleward (i.e., latitudinally upward) migration of the rare lichen species <i>Cladonia nitida</i> Ahti. The study hereby reports the recently extended range of this rare lichen species from the Eastern Himalayas to the Western Himalayas. The reported latitudinal migration of <i>C. nitida</i> serves as a proxy for climate change-induced warming in the region. Observed alterations in atmospheric temperature and moisture patterns in the Himalayas have validated the range shift. The finding emphasises the importance of monitoring such latitudinal migrations, which help elucidate the ecological consequences of warming in sensitive mountain ecosystems such as the Himalayas.</p>

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Range Extension of a Rare Lichen Species: Evidence of Climate Change-Linked Warming in the Himalayas

  • 期刊论文

  • 发表日期：

    2025年10月16日

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  • Himanshu Rai,
  • Sahaj Kaur,
  • Sanjeeva Nayaka,
  • Dalip Kumar Upreti,
  • Omesh Bajpai,
  • Sudipta Chatterjee

摘要

The atmospheric climate warming of Earth is a critical factor in the survival of life forms, as it disrupts ecosystems and alters biodiversity patterns. Among the various indicators, a prominent climate-warming signal is the upward migration of plant species to higher latitudes, a trend increasingly observed in montane habitats. The present study documents a notable instance of such a species range shift: the poleward (i.e., latitudinally upward) migration of the rare lichen species Cladonia nitida Ahti. The study hereby reports the recently extended range of this rare lichen species from the Eastern Himalayas to the Western Himalayas. The reported latitudinal migration of C. nitida serves as a proxy for climate change-induced warming in the region. Observed alterations in atmospheric temperature and moisture patterns in the Himalayas have validated the range shift. The finding emphasises the importance of monitoring such latitudinal migrations, which help elucidate the ecological consequences of warming in sensitive mountain ecosystems such as the Himalayas.