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Recent News and Articles on the Keywords: more productive + queen honeybees + honeybee  Related to the article below (Last Update: 5/5/2008)

New Orleans vs. Dallas, Game 2 recap
SLAM Online, FL - Apr 23, 2008
AS: The Honeybees come out in some orange retro skirts that I?m not feeling. Toney notes that they look like ?regular clothes.? That?s the problem. ...
Source: Google News

… gland secretion of the queen honeybee (Apis mellifera): an egg discriminator pheromone or a queen … -
T Katzav-Gozansky, V Soroker, F Ibarra, W Francke, … - Behavioral Ecology and Sociobiology, 2001 - Springer
... Several features of Dufour?s gland in honeybees sup- port ... sneak in eggs unno- ticed
and gain more fitness by ... would be an arms race between queen and workers ...

Testing genetic variance hypotheses for the evolution of polyandry in the honeybee (Apis mellifera L … -
P Neumann, RFA Moritz - Insectes Sociaux, 2000 - Springer
... and genetic diversity causes more productive colonial phenoty ... kept colonies headed
by naturally mated queens. ... Honeybees, Apis, show an exceptionally high level ...

Honeybee egg-laying workers mimic a queen signal -
T Katzav-Gozansky, V Soroker, W Francke, A Hefetz - Insectes Sociaux, 2003 - Springer
... gland secretion tend to be more aggressed and ... Defining the Cape honeybee: Re- productive
traits of ... the tergal gland secretion of queen honeybees (Apis mellifera ...

Parasitic Mites of Honey Bees: Life History, Implications, and Impact -
D Sammataro, U Gerson, G Needham - Annual Reviews in Entomology, 2000 - Annual Reviews
... and for sale as package bees and queens. ... what prevented it from damaging honey bees
in other ... Nowadays beekeeping is much more productive than in the past, and ...

Nutritional factors affecting the egg sex ratio adjustment by a honeybee queen -
K Sasaki, Y Obara - Insectes Sociaux, 2001 - Springer
... are destined to be either re- productive queens or sterile ... of brood killing and produce
reproductives more efficiently. ... Queen-worker conflict over sex ratio: A ...

The Cape honeybee phenomenon: the sympatric evolution of a social parasite in real time? -
P Neumann, R Moritz - Behavioral Ecology and Sociobiology, 2002 - Springer
... Two or more unre- lated swarms may merge into an ... workers cannot mate and are usually
not re- productive. ... pher- omones, which are derived from the queen and the ...

… regulation of emergency queen rearing in honey bee colonies and the resultant variation in queen … -
S Hatch, DR Tarpy, DJC Fletcher - Insectes Sociaux, 1999 - Springer
... studies of the three re- productive situations (Butler ... then why do the workers construct
more than one ... Events following queen removal in colonies of africanized ...

Intracolonial behavioral variation in worker oviposition, oophagy, and larval care in queenless … -
GE Robinson, RE Page, MK Fondrk - Behavioral Ecology and Sociobiology, 1990 - Springer
... the observed biases in reproduction were more likely due ... occur naturally in populations
of honey bees (Contel et ... Experiment i. Five virgin queen daughters were ...

Worker reproduction in honey-bees (Apis) and the anarchic syndrome: a review -
AB Barron, BP Oldroyd, FL Ratnieks - Behavioral Ecology and Sociobiology, 2001 - Springer
... in the honey-bee reproductive system. The egg-marking pheromone has not been iden-
tified, but the Dufour gland is more developed in queen honey-bees than in ...

Egg-laying, egg-removal, and ovary development by workers in queenright honey bee colonies -
FLW Ratnieks - Behavioral Ecology and Sociobiology, 1993 - Springer
... such as pro- duction of more acceptable eggs ... A. mellifera laying workers produce
queen-like mandibular ... as the possible alternative re- productive strategies of ...

Source: Google Scholar

An answer to the mystery of wanton queen honeybees: Promiscuity produces more productive colonies
By Susan Lang

Why do queen honeybees mate with dozens of males? Does their extreme promiscuity, perhaps, serve a purpose?

An answer to this age-old mystery is proposed in the July 20 issue of Science magazine by Cornell scientists: Promiscuous queens, they suggest, produce genetically diverse colonies that are far more productive and hardy than genetically uniform colonies produced by monogamous queens.

"An intriguing trait of honeybee species worldwide is that each honeybee queen mates with an extraordinarily high number of males," said Heather R. Mattila, a Cornell postdoctoral fellow in neurobiology and behavior and co-author of the article with Thomas D. Seeley, Cornell professor of neurobiology and behavior.

In every honeybee species, say the researchers, queens mate with multiple males. The European honeybee -- the common species in North America -- mates with from six to 20 mates on average, for example, while the giant honeybee in Asia has a reported record of 102 mates.

To study the reasons for honeybees' promiscuity, the Cornell biologists inseminated 12 queens with sperm from 15 drones (a different set for each) and nine additional queens with sperm from a single drone (but a different one in each case). They then prompted the hives to swarm in early June to form new colonies.

"After only two weeks of building new nests, the genetically diverse colonies constructed 30 percent more comb, stored 39 percent more food and maintained foraging levels that were 27 to 78 percent higher than genetically uniform colonies," said Mattila.

By the end of the summer, the genetically diverse colonies had five times more bees, eight times more reproductive males and heavier average body weights, mostly because of larger amounts of stored food.

By winter's end, 25 percent of the genetically diverse colonies survived to their one-year anniversary (only about 20 percent of new honeybee colonies make it that long in upstate New York). But all of the genetically uniform hives starved to death.

"These differences are noteworthy considering colonies had similarly sized worker populations when they were first formed," said Mattila. "Undoubtedly, our results reveal enormous benefits of genetic diversity for the productivity of honeybee colonies."

For example, the researchers found that bees in the genetically diverse colonies used sophisticated mechanisms for communication, including waggle dancing, more often than bees in genetically uniform colonies to discover food sources and direct nest mates to food. Because there was more information available among nest mates about food discoveries, the diverse colonies gained far more weight than did genetically uniform colonies.

Worker bees construct a new comb

Heather R. Mattila

Worker honeybees construct a new comb, an important part of colony founding. Colonies of promiscuous queens tend to be far more successful in such chores and in surviving their first winter than colonies produced by monogamous queens, report Cornell researchers Tom Seeley and Heather Mattila in Science magazine.

 

 
 
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