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Predators Current Events | Predators News
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What are 3-D spider webs for?
The classic radial or "orb" spider web captures flying insects efficiently with a small amount of silk but such flat webs leave spiders exposed to their own predators. The derived "araneoid sheet web weavers" transformed the flat orb web into, usually, three-dimensional cobwebs and sheet webs. These webs surround spiders with tangles of silk that... view more... (2003-01-02)
To deter a predator, kill its young!
Prey have evolved a suite of tricks to avoid falling victim to a predator. They may escape, hide, protect, become toxic/inedible or defend themselves. In principle, they could also scare the predator away, but this is risky when predators are big. Recent work led by a Dutch research team and published in the July issue of Ecology Letters revealed... view more... (2002-07-11)
Female guppies risk their lives to avoid too much male attention
Sexual harassment is a burden that females of many species face, and some may go to extreme lengths to avoid it. view more (2006-05-15)
Fishing kills Fijian coral reefs
Outbreaks of a coral-eating starfish have occurred in Fiji resulting from overexploitation of the predatory fishes that normally limit its numbers. The impacts of the starfish are dramatic, with previously pristine coral reefs being turned into dull algal mats. Worryingly, Dulvy, Freckleton and Polunin - the authors of a study in the May issue of... view more... (2004-05-04)
Skunk's Strategy Not Just Black and White
Predators with experience of skunks avoid them both because of their black-and-white coloration and their distinctive body shape, according to UC Davis wildlife researcher Jennifer Hunter. view more (2009-11-11)
Squid Skin Reveals Hidden Messages
In the animal world, squid are masters of disguise. Pigmented skin cells enable them to camouflage themselves-almost instantaneously-from predators. view more (2006-09-22)
Flighty yet mighty
Those heading to the moors on August 12 may not be aware they are pitting their guns against the most powerful muscles on the planet. Leeds researcher Dr Graham Askew has calculated the muscle power generated by game birds such as quail, pheasant and grouse when taking flight, and found it to be the highest measured in any animal. Game birds... view more... (2003-08-11)
Predators ignore peculiar prey
Rare traits persist in a population because predators detect common forms of prey more easily. view more (2009-05-13)
Alien predators are more dangerous than native predators
Introduced predators such as foxes and cats are twice as deadly as native predators to Australia's unique native animals, a new study has found. view more (2007-03-14)
Zoologists challenge longstanding theory that 'eyespots' mimic the eyes of predators' enemies
Circular markings on creatures such as butterflies are effective against predators because they are conspicuous features, not because they mimic the eyes of the predators' own enemies, according to research published today in the journal, Behavioral Ecology. view more (2008-02-22)
Poison dart frog mimics gain when birds learn to stay away
Studying neotropical poison dart frogs, biologists at the University of Texas at Austin uncovered a new way that the frog species can evolve to look similar, and it hinges on the way predators learn to avoid the toxic, brightly colored amphibians. view more (2006-03-09)
Prey not hard-wired to fear predators
Are Asian elk hard-wired to fear the Siberian tigers who stalk them" When wolves disappear from the forest, are moose still afraid of them? view more (2007-06-21)
Sexy or Repulsive? Butterfly Wings Can Be Both To Mates and Predators
Butterflies seem able to both attract mates and ward off predators using different sides of their wings, according to new research by Yale University biologists. view more (2009-04-02)
Catastrophic shift in species diversity and productivity of an ecosystem
Ecology and environmental management is largely predicated on the view that ecosystems respond to environmental changes in a smooth and straightforward way. However, in Ecology Letters, May, Schmitz reports on a long-term field experiment that may prompt a hard, critical look at this reigning view. In the experimental system, top predators... view more... (2004-05-04)
Hind wings help butterflies make swift turns to evade predators, study finds
New tires allow race cars to take tight turns at high speeds. Hind wings give moths and butterflies similar advantages: They are not necessary for basic flight but help these creatures take tight turns to evade predators. view more (2009-01-09)
Why are cod stocks collapsing?
Sudden collapses in many ecological systems are the rule rather than exceptions to the rule. This is shown by Professor Lennart Persson of Ume'å University, Sweden, in the latest issue of the scientific journal Proceedings of the National Academy of Sciences. Among other things, the article provides an explanation for the collapses in cod... view more... (2002-09-23)
Small rodents encourage the formation of scrubland in Spain
After two years of research over five degraded landscapes in the National Park of Sierra Nevada (Granada), scientists have established for the first time that field mice base their diet on holm oak and pine seeds, causing a deterioration of the habitats and an extension of scrubland in the forests. view more (2009-08-28)
Looking different 'helps animals to survive'
In the animal kingdom, everything is not as it seems. Individuals of the same species can look very different from each other - what biologists term 'polymorphism.' view more (2009-07-24)
Will lemmings fall off climate change cliff?
Contrary to popular belief, lemmings do not commit mass suicide by leaping off of cliffs into the sea. In fact, they are quite fond of staying alive. view more (2007-04-23)
Migrating songbirds learn survival tips on the fly
Migrating songbirds take their survival cues from local winged residents when flying through unfamiliar territory, a new Queen's University-led study shows. view more (2008-06-26)
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