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Tag: "ant" at biology news

Researchers find 24 species believed new to science in Suriname rainforest

...ecies, six species of fish, 12 dung beetles and an ant species. The scientists also found 27 species endemic to the Guayana Shield region comprising Suriname and neighboring Guyana, French Guiana and northern Brazil, including a rare armored catfish, Harttiella crassicauda, feared extinct because gold mi...

Ants show us how to make super-highways

...y specialised behaviour performed by a minority of ant workers can improve the performance of the majorit...my ants’ trails to see how well different sizes of ant matched different sizes of pot hole. Indeed, they fit beautifully", explained Franks. Overall, t...

Some caterpillers just don't want to grow up

... both years do not always compete because infected ant colonies avoid re-infection in the next season ?favor evolutionary stable fractions of slow developers up to 50%. However, among all arguments suggested so far, only a "priority effect" ?the competitive asymmetry between last year's slow and this yea...

How ants find their way

...Now scientists have discovered how the humble wood ant navigates over proportionally huge distances, usin...lier ants. This is a slow way of travelling as the ant needs to walk with its antennae to the ground. However, this initial route forms the basis of an eff...

Biotech cotton provides same yield with fewer pesticides

...ated area. That allowed the researchers to compare ant and beetle biodiversity among the various cotton fields and the uncropped areas. The team used Geographical Information Systems (GIS) and LANDSAT satellite imagery to map the fields and evaluate plant growth in the non-cultivated areas. Plant growt...

Fire ant-attacking fly spreading rapidly in Texas

...their victims. Researchers place traps around fire ant mounds along roads and analyze the flies they catc...2001, says Dr. Larry Gilbert, director of the fire ant research program and professor of integrative biology, but they are now spreading three-to-10 miles ...

Fire ants: Their true story told by the scientist who loves them

... Then there's Walter R. Tschinkel. An ardent fire ant fan and one of its foremost researchers for more t...ety of pesthood has certainly created a large fire ant folklore and scores of amusing factoids," he writes, though that same notoriety has generated substa...

Study reveals classic symbiotic relationship between ants, bacteria

...ng together for tens of millions of years. "Every ant species [that we have examined] has different, hig...m removed the external blooms of bacteria from two ant species in the genus Cyphomyrmex and examined the exoskeleton beneath with a high-powered microscope...

First demonstration of 'teaching' in non-human animals

Certain species of ant use a technique known as 'tandem running' to lead another ant from the nest to a food source. Signals between the two ants control both the speed and course of th...

Ancient DNA provides clues to the evolution of social behavior

...id development of social behavior in the Argentine ant when it colonized North America, she says, and even in ancient human populations. At the very least, combining ancient and modern DNA with population models will help geneticists understand the role population size and structure play in the maintenan...

A bug's life: Exceptional genomic stability yet rapid protein evolution in a carpenter ant mutualist

...nia, which has lived inside Camponotus and related ant genera for the past 30 million years or more. The bacteria may utilize the ant host for basic metabolic functions, including the initiation of DNA replication. In turn, the microb...

Ants, not evil spirits, create devil's gardens in the Amazon rainforest, study finds

For the first time, scientists have identified an ant species that produces its own natural herbicide to... D. hirsuta saplings to grow, thereby allowing the ant colony to expand as it occupies new nesting sites in the saplings," Frederickson explains. To test ...

Ants win a waxy race

...ves from ants and other insects. Only one specific ant is capable of running up and down the stem, in ord...ion A 7.68 and A7.70]. The legs of the specialist ant Crematogaster contains two claws and an adhesive pad. Bruening performed experiments with ants runni...

Insects, viruses could hold key for better human teamwork in disasters

...lication has yet been found that applies models of ant behavior under threatening situations for any give... propagate alarms and the interactions produced in ant colonies can be used to model complex systems and cascading effects," Robinson said. ...

Sexual cooperation: Mating increases longevity in ant queens

...openhagen, Denmark, show that queens of the social ant Cardiocondyla obscurior actually benefit from mati...mating and reproduction throughout their lifetime, ant queens in social species mate only during a short period early in life and store and use the sperm o...

Falling ants glide back to trunk to avoid dangers of forest floor

... UC Berkeley, and zoologist Michael E. Kaspari, an ant ecologist at the University of Oklahoma, Norman, r...orests are flooded as much as half the year, so an ant falling into the water will most likely end up as fish food. "That's what I think is the major evol...

Ants Genetic Engineering Leads To Species Interdependency

... certain stage in her development.In virtually all ant species, it is the environment in which a femaleis...hichcaste she will adopt.However, in two harvester ant populations in southern New Mexico,queens and workers from the same colonies are genetically verydif...

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