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<p><i>Tidestromia oblongifolia</i>, Arizona honeysweet, is the most heat-tolerant plant species on Earth. The environmental factors controlling the ecological niche preference of <i>T. oblongifolia</i> are not yet known. Its performance under extreme heat makes it a model species for studying the impact of climate change. Its current distribution is in the Mojave and Sonoran deserts of North America. Species distribution models combined with climate projections from the CMIP6 predict future habitat suitability and range shifts under climate change. This study employs an ensemble of three CMIP6 general circulation models to project the impacts of climate change on <i>T. oblongifolia</i> for 2050 and 2070 under multiple shared socioeconomic pathways (SSPs). The model results suggest that climate change led to a net positive shift in habitat suitability, with substantial range expansion. <i>T. oblongifolia</i> has great potential to advance sustainable agriculture and eco-restoration at the forefront of the climate change crisis.</p>

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Modelling Climate Driven Potential Distributional Changes in Tidestromia oblongifolia: Implications for the World's Most Heat-Tolerant Species

  • 期刊论文

  • 发表日期：

    2026年7月31日

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  • Maloth Mounika,
  • R. Nandhini,
  • Shalini Mudalkar,
  • Reeja Sundaram,
  • Rachapudi Venkata Sreeharsha,
  • C. Sudhakar Reddy

摘要

Tidestromia oblongifolia, Arizona honeysweet, is the most heat-tolerant plant species on Earth. The environmental factors controlling the ecological niche preference of T. oblongifolia are not yet known. Its performance under extreme heat makes it a model species for studying the impact of climate change. Its current distribution is in the Mojave and Sonoran deserts of North America. Species distribution models combined with climate projections from the CMIP6 predict future habitat suitability and range shifts under climate change. This study employs an ensemble of three CMIP6 general circulation models to project the impacts of climate change on T. oblongifolia for 2050 and 2070 under multiple shared socioeconomic pathways (SSPs). The model results suggest that climate change led to a net positive shift in habitat suitability, with substantial range expansion. T. oblongifolia has great potential to advance sustainable agriculture and eco-restoration at the forefront of the climate change crisis.