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Latest Antipredator adaptations Stories

Plants Respond To Leaf Vibrations Caused By Chewing Caterpillars
2014-07-02 03:34:36

[ Watch The Video: Plants Respond To Leaf Vibrations Caused By Insects’ Chewing ] University of Missouri-Columbia Previous studies have suggested that plant growth can be influenced by sound and that plants respond to wind and touch. Now, researchers at the University of Missouri, in a collaboration that brings together audio and chemical analysis, have determined that plants respond to the sounds that caterpillars make when eating plants and that the plants respond with more...

2014-02-10 11:05:48

When people see a skunk, the reaction usually is “Eww,” but when they see a group of meerkats peering around, they often think “Aww.” Why some animals use noxious scents while others live in social groups to defend themselves against predators is the question that biologists Tim Caro of the University of California, Davis and Theodore Stankowich of California State University, Long Beach  and sought to answer through a comprehensive analysis of predator-prey interactions among...

Extracting Plant DNA From Grasshopper Guts Improves Understanding Of Plant-insect Interactions
2014-02-06 14:12:58

[ Watch the Video: Demonstration of Grasshopper Dissection ] American Journal of Botany Grasshoppers may be small, but the damages they are causing to the US agriculture industry are anything but. Every year, they feed on crops and on rangelands needed for raising livestock, costing landowners millions of dollars. Although they pose a major threat, grasshopper populations play a positive role in cycling nutrients from decomposing plant matter back into the soil. A new method to...

Effectiveness Of Camouflage Types
2013-09-11 11:08:04

Brett Smith for redOrbit.com - Your Universe Online From military personnel to potential prey, camouflage has proven to be an effective way to evade detection. However, a new study from the University of Exeter has found that some ‘predators’ can learn to read certain types of camouflage more easily than other types. Using human volunteers as their 'predators' in a video game-like simulation, study researchers discovered that high contrast markings on virtual moths, similar to the...

Beetles Defeat Plant Defenses With Help From Microbes
2013-09-10 11:03:44

Penn State Some symbiotic bacteria living inside Colorado potato beetles can trick plants into reacting to a microbial attack rather than that of a chewing herbivore, according to a team of Penn State researchers who found that the beetles with bacteria were healthier and grew better. "For the last couple of decades, my lab has focused on induced defenses in plants," said Gary W. Felton, professor and head of entomology. "We had some clues that oral secretions of beetles suppressed...

New Way Fish Camouflage Themselves In The Ocean Discovered
2013-06-03 18:58:18

University of Texas at Austin Lookdowns outperforms by up to 80 percent the 'mirror' strategy that was previously thought to be state-of-the-art in fish camouflage Fish can hide in the open ocean by manipulating how light reflects off their skin, according to researchers at The University of Texas at Austin. The discovery could someday lead to the development of new camouflage materials for use in the ocean, and it overturns 40 years of conventional wisdom about fish camouflage. The...

Butterfly Evolution Can Also Be Driven By Spiders
2013-03-13 05:09:24

April Flowers for redOrbit.com - Your Universe Online Butterflies are vibrant and colorful insects, with colorations designed to deflect predators. A new study from the University of Florida reveals that some of these predator driven defenses may be caused by enemies one-tenth the size of the butterfly. Since Darwin sailed on the Beagle over 150 years ago, scientists have theorized that the main influence on the evolution of coloration in butterflies came from large predators such as...

Wildlife Critters Inspire Scientists To Build Deceptive Robots
2012-12-04 12:36:57

April Flowers for redOrbit.com - Your Universe Online Researchers from the Georgia Institute of Technology have used the deceptive behavior patterns of squirrels and birds to develop robots that are able to deceive each other. Professor Ronald Arkin, who led the study, suggests the applications could be implemented by the military in the future. Arkin and his team reviewed biological research results to learn that squirrels gather acorns and store them in specific locations. The...

City Birds Adjust To Their New Predators
2012-11-07 13:05:06

FECYT - Spanish Foundation for Science and Technology Faced with the same threat, city and country birds do not react in the same way despite being from the same species. According to a new study, urban birds have changed their anti-predator behavior in new environments. When a bird is faced with a predator, its only objective is to escape. However, city birds do not react in the same way as their countryside counterparts, despite being from the same species. Urbanization plays an...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.