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Latest Vespoidea Stories

471d9c5e7d3d1c767e3182c590a63d061
2008-07-23 09:05:00

The results of a new study suggest that past climate changes and sea level fluctuations may have promoted the formation of new species in the Amazon region of South America. Today, the Amazon basin is home to the richest diversity of life on earth, yet the reasons why this came to be are not well understood. A team of American and Brazilian researchers studied three species of leafcutter ants from Central and South America to determine how geography and climate affect the formation of new...

2008-04-26 10:15:57

This Behind the Scenes article was provided to LiveScience in partnership with the National Science Foundation. Dressed in a white beekeeper suit and full face mask, I pour a small amount of ether into the exit hole of a yellow jacket nest. Too much ether might kill many of the colony inhabitants, too little might allow them enough mobility to attack me, but just the right amount should send the yellow jackets into dreamland. After a few minutes, my students and I quickly dig up the...

356e1c4b87a9dd3b367ae1b0dd110eaa1
2008-04-08 08:45:00

New study shows the age of victims determines how fire ants respond to aggressorsPretending to be dead is an effective self-defense strategy adopted by young fire ant workers under attack from neighboring colonies. This tactic makes them four times more likely to survive aggression than older workers who fight back. As a result, these young workers are able to contribute to brood care and colony growth to ensure the survival and fitness of their queen. These findings by Dr. Deby Cassill from...

feb550b7a847a8a723ea1493c7c209cc1
2008-03-11 18:00:23

Which came first, social dominance or big brains? Wasps may tell There's new evidence supporting the idea that bigger brains are better. A study of a tropical wasp suggests that the brainpower required to be dominant drives brain capacity. University of Washington researchers have found that key processing regions in the brains of both males and females of one wasp species not only increased in size with age but were also associated with being dominant. The study also showed different...

df3adcea655410ef73dc3f1f654465811
2008-03-11 13:00:00

Far from being a model of social cooperation, the ant world is riddled with cheating and corruption "“ and it goes all the way to the top, according to scientists from the Universities of Leeds and Copenhagen.Ants have always been thought to work together for the benefit of the colony rather than for individual gain. But Dr Bill Hughes from Leeds' Faculty of Biological Sciences has found evidence to shatter this illusion.With Professor Jacobus Boomsma from the University of Copenhagen,...

df60710a44a3d3d19f4348f502ff97151
2008-02-18 12:35:00

Colonies exhibit extreme cooperation and caste systemMichael Goodisman could be called the Maury Povich of the yellow jacket world. In his laboratory, Goodisman determines the paternity of yellow jackets to study family dynamics within a colony. Even though only one family lives within a colony, each yellow jacket queen mates with several males, creating a complex family tree."Social insects such as yellow jackets have been described as one of the greatest achievements of evolution because of...

ac52b0bbd928f3f4e1d70f2805a6b92b1
2008-01-23 14:45:00

ANN ARBOR, Mich. -- Ever since a forward-thinking trio of physicists identified the phenomenon known as self-organized criticality -- a mechanism by which complexity arises in nature -- scientists have been applying its concepts to everything from economics to avalanches.Now, researchers at the University of Michigan and the University of Toledo have shown that clusters of ant nests on a coffee farm in Mexico also adhere to the model. Their work, which has implications for controlling coffee...

80253574fb34848edc8fb3942aefdf1d1
2008-01-11 10:30:00

The term "circle of life" may ring more true than some would think. For years, scientists have been studying the decline in large herbivores in Africa, and ten years ago, they decided to find out the effect of that decline on plant life.The African acacia tree, a thorny African shrub has been providing food and shelter to aggressive biting ants for years. These ants, in turn protect the trees by attacking large herbivores and other animals that try and eat their leaves. This practice, called...

13d92c9c5917771c76477384c096139b1
2007-04-13 19:05:00

PARIS -- Ambushing locals as they return home from work, foreign invaders are dismembering French natives and feeding them to their young. This horror scenario is playing out in France's beehives, where an ultra-aggressive species of Asian hornets - who likely migrated in pottery shipped from China - may be threatening French honey production. The hornets are thought to have reached France in 2004 after stowing away on a cargo boat, said Claire Villemant, a lecturer at Paris' Natural History...

2006-08-24 14:30:23

By Anne Harding NEW YORK (Reuters Health) - A yellow jacket sting can be more dangerous if a certain species of the insect is doing the stinging, a new study shows. Of the two most common yellow jacket species found in the eastern US, Vespula maculifrons -- which tends to live in large underground nests -- is much more likely to cause a systemic reaction than is Vespula germanica, Dr. David B. K. Golden of the Johns Hopkins Asthma and Allergy Center in Baltimore and colleagues...


Latest Vespoidea Reference Libraries

0_1b176b063c37655d81f4ab248352d3de
2005-09-12 11:56:41

A wasp is any insect of the order Hymenoptera and suborder Apocrita that is not a bee, sawfly, or an ant. The less familiar suborder Symphyta includes the sawflies and wood wasps, which differ from the Apocrita by having a broad connection between the thorax and abdomen. Also, Symphyta larvae are mostly herbivorous and "caterpillarlike", whereas those of Apocrita are largely predatory or parasitic. Most familiar wasps belong to the Aculeata, a division of the Apocrita whose ovipositors are...

40_6890040c3881a91ffa9ae5832977676d
2005-09-12 10:21:44

Spider wasps, also called pompilid wasps or spider-hunting wasps, are insects belonging to a diverse family named Pompilidae, of the order Hymenoptera. Spider wasps are sometimes distinct from other wasps in features such as eye structure (no notch as in Family Vespidae), legs modified for grooming, and in having a groove dividing the mesopleuron (a region of the thorax) into halves. Larvae can also be identified by physical examination. Females are often larger than the males, with...

40_2a82afe2a926ff17f8a6767143261c5b
2005-09-08 12:09:25

Yellowjackets are typically black-and-yellow wasps of the genus Vespula or Dolichovespula (though some can be black-and-white, the most notable of these being the bald-faced hornet, Dolichovespula maculata). They are characterized mostly by their distinctive combination of black-and-yellow color, small size (slightly larger than a bee), and entirely black antennae. They live in colonies and build globular paper nests. Workers are around 12-20 mm in length, depending on species, and feed on...

40_f0d9886e30d819cc3f9700977b463e08
2005-08-25 09:20:52

Paper Wasps are social wasps and make up the genus Polistes. They form small colonies with umbrella-shaped nests in sheltered spots, and are quite mild-mannered. They feed on caterpillars and other soft-bodied insects, most of them pests. Despite the use of the proper name, most social wasps make nests from paper, although some tropical wasp species such as Listenogaster Flavolineata use mud, a far more easy resource for the wasp to collect. The larger colonial species, Yellowjackets,...

40_e84b7351a70d1d2195a6554703b4a633
2005-08-25 08:44:29

A wasp is any insect of the order Hymenoptera and suborder Apocrita that is not a bee, sawfly, or an ant. Less familiar, the suborder Symphyta includes the sawflies and wood wasps, which differ from the Apocrita by having a broad connection between the thorax and abdomen. Also, Symphyta larvae are mostly herbivorous and "caterpillar-like", whereas those of Apocrita are largely predatory or parasitic. Most familiar wasps belong to the Aculeata, a division of the Apocrita whose ovipositors...

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Word of the Day
baudekin
  • A rich embroidered or brocaded silk fabric woven originally with a warp of gold thread.
'Baudekin' seems to be an alternative form of 'baldachin,' from the Italian 'Baldacco,' Baghdad, the city where the material was made.
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