Navigation Links
Why do some queen bees eat their worker bee's eggs?

Worker bees, wasps, and ants are often considered neuter. But in many species they are females with ovaries, who although unable to mate, can lay unfertilized eggs which turn into males if reared. For some species, such as bumble bees, this is the source of many of the males in the species. But in others, like the honeybee, workers "police" each other ?killing eggs laid by workers or confronting egg-laying workers.

In 1964 the English biologist William Hamilton put forward his "relatedness hypothesis", a major landmark in kin selection theory. His hypothesis was that worker bees, wasps and ants do not reproduce because most workers are half sisters. Instead the workers favor the queen's male progeny, since she has mated with multiple males, ensuring variation in the species. According to this theory, a species where the mother queen mates with multiple males would have more worker policing. This theory is widespread and in animal behavior textbooks.

However, Hamilton's relatedness hypothesis was challenged in 2004 by researchers from the University of Lausanne, Switzerland. They compared 50 species and found no evidence that multiple mating by the queen correlated with reduced rearing of workers' sons or greater worker reproductive policing. Were the textbooks wrong"

A new study appearing in the current issue of The American Naturalist strongly supports Hamilton's original theory. Tom Wenseleers and Francis Ratnieks (University of Sheffield) compared 90 species and found that workers' sons are reared 100 times less in species with a queen mated to multiple males. They also found worker policing by the queen, with the queen eating working-laid eggs, in all species with multiple-mated queens, but in only 20 percent with single-mated queens.

"It seems that the textbooks do not need rewriting," write the authors. "Kin selection theory is important when studying relatedness in social behavior. Social insects, with their great varia tion in kinship, have been a key test bed of the theory, and the theory has revolutionized our understanding of insect societies."
'"/>

Source:University of Chicago Press Journals


Related biology news :

1. Sexual cooperation: Mating increases longevity in ant queens
2. Beauty queens urge girls not to sacrifice their bones
3. Priming embryonic stem cells to fulfill their promise
4. Protein offers way to stop microscopic parasites in their tracks
5. Flocking together: Study shows how animal groups find their way
6. Where bacteria get their genes
7. Chickadees can help humans get their bearings
8. Bacteria use hosts immune response to their competitive advantage
9. Structures of marine toxins provide insight into their effectiveness as cancer drugs
10. Researchers learn how blood vessel cells cope with their pressure-packed job
11. Stem cells electric abilities might help their safe clinical use

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/11/2017)... BEACH GARDENS, Fla. , April 11, 2017 ... identity management and secure authentication solutions, today announced ... contract by Intelligence Advanced Research Projects Activity (IARPA) ... for IARPA,s Thor program. "Innovation has ... onset and IARPA,s Thor program will allow us ...
(Date:4/5/2017)...  The Allen Institute for Cell Science today announces ... portal and dynamic digital window into the human cell. ... application of deep learning to create predictive models of ... a growing suite of powerful tools. The Allen Cell ... publicly available resources created and shared by the Allen ...
(Date:3/30/2017)... March 30, 2017  On April 6-7, 2017, Sequencing.com ... Genome hackathon at Microsoft,s headquarters in ... will focus on developing health and wellness apps that ... Hack the Genome is the first hackathon for ... world,s largest companies in the genomics, tech and health ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... The ... three Winners and six Finalists of the 2017 Blavatnik Regional Awards for Young ... Family Foundation and administered by the New York Academy of Sciences to honor ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... States multicenter, prospective clinical study that demonstrates the accuracy of the FebriDx® ... identifying clinically significant acute bacterial and viral respiratory tract infections by testing ...
(Date:10/12/2017)... ... October 12, 2017 , ... AMRI, a global contract research, ... improve patient outcomes and quality of life, will now be offering its impurity ... to new regulatory requirements for all new drug products, including the finalization of ...
(Date:10/11/2017)... ... October 11, 2017 , ... At its national ... Dr. Suneel I. Sheikh, the co-founder, CEO and chief research scientist of Minnesota-based ... selected for membership in ARCS Alumni Hall of Fame . ASTER Labs ...
Breaking Biology Technology: