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Invertebrates

Franklin's Bumblebee

Bombus franklini · also called Franklin bumblebee

Critically Endangered ↓ herbivore MountainsTemperate grassland

In a mountain meadow on the border of Oregon and California, the last Franklin’s bumblebee anyone saw was working a lupine in 2006, and no one has reliably seen one since.

Overview

Franklin’s bumblebee, Bombus franklini, is a Critically Endangered bumblebee that lived in a tiny area of southern Oregon and northern California. Its sudden decline, with no confirmed sighting since 2006, has made it one of the best-known cases of a pollinator’s rapid disappearance.

A bee that vanished

The fate of Franklin’s bumblebee has become a warning about how quickly a species with a very small range can decline when disease and habitat change strike.

Status

Critically Endangered, with a decreasing population and possibly extinct.

Franklin's Bumblebee: common questions

When was Franklin's bumblebee last seen?

It has not been reliably seen since 2006, and it may be extinct.

Where did Franklin's bumblebee live?

It lived in a small area of southern Oregon and northern California, one of the smallest ranges of any bumblebee.

Why did Franklin's bumblebee decline?

It is thought to have been hit by a disease spread from commercially reared bumblebees.

What did Franklin's bumblebee feed on?

It fed on nectar and pollen from wildflowers such as lupines and poppies.

Sources & further reading