Bumblebee Location and IUCN Status: UPSC Current Affairs

Description

Why In News

A research published in Science reveals that bumble bees can recognize and adapt to rhythmic patterns across different tempos, an ability previously thought to be limited to only a few mammals and birds.

What are Bumblebees?

Bumblebees are large, fuzzy insects belonging to the family Apidae. While they are cousins to the common Honeybee (Apis mellifera), they possess distinct biological and behavioral traits:

Physicality: They are larger, "fuzzier" (covered in dense pile/hair), and have distinct black and yellow bands.

Thermoregulation (Endothermy): Unlike most insects, bumblebees can regulate their body temperature.

They "shiver" their flight muscles to generate heat, allowing them to fly in cold, high-altitude environments (up to 5,000m) where honeybees cannot survive.

Social Structure: They are eusocial but form annual colonies, not perennial ones.

A single queen hibernates through winter underground and starts a new colony every spring.
They do not store harvestable honey in large quantities.

Buzz Pollination

Bumblebees are the only major pollinators capable of sonication.

They grab a flower and vibrate their flight muscles at a specific frequency (middle C), forcibly shaking pollen out of anthers.
This is critical for crops like Tomatoes, Brinjals, Potatoes (Solanaceae family), and Blueberries. Honeybees cannot do this.

Habitat in India

India is home to approximately 48–57 species of Bumblebees, predominantly found in the Indian Himalayan Region (IHR).

Western Himalayas (HP, J&K, Uttarakhand): Dominated by species like Bombus haemorrhoidalis and Bombus tunicatus. These are vital for the apple and fruit orchards of Himachal Pradesh.
Eastern Himalayas (Sikkim, Arunachal Pradesh): A biodiversity hotspot with high endemism. Recent surveys identified 21 species, including Bombus breviceps.

IUCN Status

Global: Many species (e.g., Bombus affinis in North America) are Critically Endangered.

India: Most Indian bumblebee species are listed as "Data Deficient" or "Not Evaluated" by the IUCN Red List due to a lack of comprehensive surveys.

Source: SCIENCE

Attempt Daily Quiz

PRACTICE QUESTION

Q. With reference to Bumblebees (Bombus species), consider the following statements:

Unlike honeybees, bumblebees are capable of thermoregulation (endothermy), allowing them to forage in cold, high-altitude environments.
They are the primary source of commercial honey production in the Indian Himalayas.
They possess a unique ability called "sonication", which is essential for crops like tomatoes and brinjals.

Which of the statements given above is/are correct?

A) 1 only

B) 1 and 3 only

C) 2 and 3 only

D) 1, 2, and 3

Answer: B) 1 and 3 only

Statement 1 is Correct: Bumblebees can "shiver" their flight muscles to generate heat, enabling them to fly in temperatures where honeybees would freeze.

Statement 2 is Incorrect: Bumblebees do not store surplus honey like honeybees (Apis species). Their colonies are annual, not perennial, so they don't need large food stores for winter.

Statement 3 is Correct: They vibrate their muscles to release pollen from "poricidal anthers" in Solanaceae crops, a feat honeybees cannot perform.

Frequently Asked Questions (FAQs)

Launched in February 2026, it is an infrastructure policy by the National Highways Authority of India aimed at building "Ecological Infrastructure". It mandates planting native, nectar-rich trees in clusters every 500m to 1km along highways to prevent habitat fragmentation and support wild pollinator populations.

Unlike honeybees, bumblebees are warm-blooded (endothermic), allowing them to survive in freezing high-altitude Himalayan environments. They do not store harvestable honey or form perennial colonies. Additionally, they are uniquely capable of "buzz pollination."

Buzz pollination is a process where bumblebees bite a flower and vibrate their flight muscles at a specific acoustic frequency. This violent shaking forcibly dislodges tightly packed pollen, a mechanism crucial for fertilizing crops like tomatoes, brinjals, and potatoes.