Gender bending bumblebees

Researchers at the University of Southampton’s School of Biological Sciences have discovered that inbreeding in threatened bumblebee species results in female worker bees changing sex.


Many bumblebee species have become rare in recent years, and their last populations are confined to nature reserves, which effectively act as islands amidst a sea of intensively farmed land. In small, isolated bumblebee populations where there are very few individuals, relatives may mate with each other.

Now the Southampton researchers have discovered that this inbreeding has significant consequences. They have studied a number of species, including the Moss Carder Bee (Bombus muscorum), at various sites across the UK, from the Hebrides in Scotland to Dungeness on the Kent coast.

A bumblebee queen usually produces a large number of worker daughters to help in the nest and with gathering nectar and pollen. But if she mates with a relative, then many of her offspring which are genetically female develop into sterile males instead. This change in sex may ultimately threaten their survival.

‘Since male bumblebees do no work, and have only one purpose – mating – a sterile male is worse than useless. If the queen is producing sterile sons instead of worker daughters, the nest is probably doomed. This means that, even on well-protected nature reserves, the last populations of these rare insects may be driven to extinction,’ explains Dr Dave Goulson, who led the research study.

Media Contact

Sarah Watts alfa

More Information:

http://www.soton.ac.uk

All latest news from the category: Ecology, The Environment and Conservation

This complex theme deals primarily with interactions between organisms and the environmental factors that impact them, but to a greater extent between individual inanimate environmental factors.

innovations-report offers informative reports and articles on topics such as climate protection, landscape conservation, ecological systems, wildlife and nature parks and ecosystem efficiency and balance.

Back to home

Comments (0)

Write a comment

Newest articles

First-of-its-kind study uses remote sensing to monitor plastic debris in rivers and lakes

Remote sensing creates a cost-effective solution to monitoring plastic pollution. A first-of-its-kind study from researchers at the University of Minnesota Twin Cities shows how remote sensing can help monitor and…

Laser-based artificial neuron mimics nerve cell functions at lightning speed

With a processing speed a billion times faster than nature, chip-based laser neuron could help advance AI tasks such as pattern recognition and sequence prediction. Researchers have developed a laser-based…

Optimising the processing of plastic waste

Just one look in the yellow bin reveals a colourful jumble of different types of plastic. However, the purer and more uniform plastic waste is, the easier it is to…