News tagged with predator prey relationships
Mountain Lion! Stand or Run?
Apr 08, 2009 |
3 / 5 (1) |
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(PhysOrg.com) -- A new UC Davis study of 110 years of mountain-lion attacks on people suggests the conventional wisdom of standing your ground may not always be the right course.
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Scientists find universal rules for food-web stability
Aug 06, 2009 |
5 / 5 (2) |
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The findings, published in this week's issue of Science, conclude that food-web stability is enhanced when many diverse predator-prey links connect high and intermediate trophic levels. The computations also reveal that s ...
Siberian jays use complex communication to mob predators
Jun 08, 2009 |
5 / 5 (2) |
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When mobbing predators, Siberian jays use over a dozen different calls to communicate the level of danger and predator category to other members of their own group. A Swedish study from Uppsala University, published in the ...
Playing Dead Increases Survival Rate at the Expense of Active Neighbors
Apr 30, 2009 |
4 / 5 (1) |
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A study published in the Proceeding of The Royal Society B entitled "Tonically Immobilized Selfish Prey Can Survive By Sacrificing Other", authored by researchers at Okayama University in Japan point out de ...
Novel living system recreates predator-prey interaction
Biology /
Apr 14, 2008 |
4.4 / 5 (7) |
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The hunter-versus-hunted phenomenon exemplified by a pack of lionesses chasing down a lonely gazelle has been recreated in a Petri dish with lowly bacteria.
Fear of predators may be a bigger killer than the predators themselves
Biology /
Aug 19, 2008 |
4.6 / 5 (5) |
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(PhysOrg.com) -- When biologists consider the effects that predators have on their prey, they shouldn’t just count the number of individuals consumed. According to a University of Rhode Island ecologist, they must also examine ...
Birds can tell if you are watching them -- because they are watching you
Biology /
Apr 30, 2008 |
4.4 / 5 (29) |
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In humans, the eyes are said to be the ‘window to the soul’, conveying much about a person’s emotions and intentions. New research demonstrates for the first time that birds also respond to a human’s gaze.
Hidden interactions between predators and prey: evolution causes cryptic dynamics in ecology
Biology /
Sep 04, 2007 |
4.4 / 5 (7) |
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When the populations of two species oscillate together (for example, predators and prey), it’s a good bet that they are tightly coupled ecologically. A famous example is the Canadian lynx and snowshoe hare, ...
Beneficial Nocturnal Insects Help Combat Pests in Texas
Oct 07, 2009 |
not rated yet |
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(PhysOrg.com) -- Agricultural Research Service (ARS) scientists in Texas are staying up late to search for beneficial insects that feed on crops pest eggs at night.
Researcher discover fundamental processes behind nature's constant balancing act
Biology /
Oct 29, 2008 |
4.2 / 5 (10) |
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The natural world behaves a lot like the stock market, with periods of relative stability interspersed with dramatic swings in population size and competition between individuals and species.
Headwater stream nutrient enrichment disrupts food web
Dec 17, 2009 |
4.2 / 5 (6) |
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Human activity is increasing the supply of nutrients, such as nitrogen and phosphorus, to stream systems all over the world. The conventional wisdom -- bolstered by earlier research -- has held that these additional nutrients ...
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