Himalayan Birch Habitat Shrinking

Himalayan birch, or Bhojpatra, a tree with historical significance for writing and crafts, is projected to lose nearly half of its climatically suitable habitat in the Western Himalayas by the end of the century. This projection, based on a high-emission fossil-fuelled development scenario, indicates a substantial reduction in its range by 2081-2100.

The study forecasts a consistent upward shift in the tree's suitable habitat. While some new areas may become suitable, the researchers caution that these are minimal and fragmented, leading to limited colonization opportunities. The species' distribution is significantly influenced by winter precipitation and dry-season moisture, with reduced snowfall and winter precipitation under warming conditions posing a threat.

These findings underscore the urgency for climate-informed conservation planning. Previous efforts, such as planting saplings and establishing nurseries, may need to be enhanced to address the predicted habitat shifts and fragmentation. The cultural and economic importance of Bhojpatra, recently highlighted by Prime Minister Modi, makes its conservation a critical endeavor.