COLLETES BHUTANICUS — RARE HIMALAYAN BEE RECORDED IN INDIA

PRERNA FOR IAS

         Mehnat Aapki, Guidance Humari

         Roz ki Prelims Practice — Experts ke Saath

COLLETES BHUTANICUS — RARE HIMALAYAN BEE RECORDED IN INDIA

Why in News

Scientists of the Zoological Survey of India (ZSI) have recorded the rare Himalayan solitary bee Colletes bhutanicus in Tawang district of Arunachal Pradesh for the first time in India. Earlier, the species was known from Bhutan and China, including the Xizang region. The new record expands its known geographical distribution in the Eastern Himalayas.

Background

Colletes bhutanicus was first described from Bhutan in 2003. It belongs to the family Colletidae and is commonly described as a plasterer bee. Unlike social honeybees, it is a solitary bee. Individual females generally make separate nests rather than living in large colonies.

Key Features and Ecological Importance

The species has been recorded in Tawang at elevations of about 1,500–3,800 metres, showing its adaptation to Himalayan conditions. ZSI researchers observed it visiting 25 flowering plant species belonging to 10 botanical families, including mustard, buckwheat, coriander, beans, chilli and eggplant. This indicates its potentially important role in both wild-plant and crop pollination.

India’s Significance

The discovery highlights the rich but still incompletely documented biodiversity of the Eastern Himalayas. It also shows why scientific surveys of insects and pollinators are important for understanding ecosystem health, agriculture and climate-sensitive mountain habitats.

Current Status and Way Forward

This is a new record for India, not a newly discovered species. Further surveys are required to understand its population size, habitat requirements and conservation status. Protecting flowering diversity, reducing pesticide misuse and maintaining connected Himalayan habitats will be important for conserving such native pollinators.

Analytical Questions

1. Why is the first Indian record of Colletes bhutanicus important if the species was already known from Bhutan and China?

Answer: It expands the known range of the species and improves our understanding of Eastern Himalayan biodiversity. Such records can reveal ecological links across political borders. They also help scientists identify important habitats and plan conservation. A species need not be new to science to be important for India.

2. Why are solitary bees important even though they do not produce honey on the scale of common honeybees?

Answer: Their value lies mainly in pollination, not honey production. Solitary bees can pollinate wild plants and crops and often work in conditions where managed honeybees may be less effective. They add diversity to the pollinator community and make agricultural and natural ecosystems more resilient.

3. How can pesticide misuse threaten a pollinator such as Colletes bhutanicus?

Answer: Pesticides can kill bees directly or affect their navigation, feeding and reproduction. Since solitary females manage their own nests, the loss of one female can mean loss of an entire reproductive line. Safer pesticide use, proper timing and reduced chemical dependence can therefore protect both crops and pollinators.

4. Why is altitude important when studying this Himalayan bee?

Answer: Altitude affects temperature, flowering season, rainfall and available vegetation. A bee adapted to high mountains may have a narrow ecological range. Climate change can shift these conditions upward. If suitable habitat shrinks, the species may face pressure. So altitude data helps assess future conservation risk.

5. If you were a district administrator in Tawang, what practical steps would you take to protect native pollinators?

Answer: I would first support scientific mapping of nesting and feeding areas. I would promote reduced pesticide use, protect flowering plants and avoid unnecessary habitat disturbance. Farmers should be involved because pollinators support crops. Conservation would work best when it improves both biodiversity and local agricultural productivity.