Predation
hideIn ecology, predation describes a biological interaction where a predator (an organism that is hunting) feeds on its prey, (the organism that is attacked). Predators may or may not kill their prey prior to feeding on them, but the act of predation always results in the death of the prey. The other main category of consumption is detritivory, the consumption of dead organic material (detritus). It can at times be difficult to separate the two feeding behaviors, for example where parasitic species prey on a host organism and then lay their eggs on it for their offspring to feed on its decaying corpse. The key characteristic of predation however is the predator's direct impact on the prey population. On the other hand, detritivores simply eat what is available and have no direct impact on the "donor" organism(s).
Selective pressures imposed on one another has led to an evolutionary arms race between prey and predator, resulting in various antipredator adaptations.
For more information about Predation, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
News tagged with prey
Acid test: Study reveals both losers and winners of CO2-induced ocean acidification
Space & Earth / Earth Sciences
Dec 01, 2009 |
4.3 / 5 (12) |
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(PhysOrg.com) -- As the world’s seawater becomes more acidic due to rising atmospheric carbon dioxide, some shelled marine creatures may actually become bigger and stronger, according to a new study.
Lizards change their diet to avoid predators
Dec 02, 2009 |
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A scientist from the University of Salamanca and another from Yale University have shown that the presence of predators affects the behaviour of Acanthodactylus beershebensis, a lizard species from the Ne ...
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How fake sites trick search engines to hit the top
3 hours ago |
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(AP) -- Even search engines can get suckered by Internet scams. With a little sleight of hand, con artists can dupe them into giving top billing to fraudulent Web sites that prey on consumers, making unwitting ...
Wolf recovery at crossroads in the Southwest
Dec 06, 2009 |
1 / 5 (1) |
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(AP) -- A decade has passed since the federal government began releasing Mexican wolves into the wild in an effort to return the endangered animal to its historic range in the Southwest. It hasn't worked ...
In Taiwan, bird catchers turn bird watchers
Dec 04, 2009 |
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When Yeh You-chin was a boy half a century ago, he ate migratory birds with relish, but now he is at the forefront of efforts to preserve the feathered visitors to his south Taiwan home.
Mathematical model of a simple circuit in a chicken brain raises fundamental questions
Dec 01, 2009 |
4.6 / 5 (28) |
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(PhysOrg.com) -- The Web site Neuroanthropology asks visitors to complete this quote, "One of the difficulties in understanding the brain is ...". In addition to the typical facetious remarks, such as "so ...
New forensic technique gives clues about sharks from bite damage
Dec 01, 2009 |
5 / 5 (1) |
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Hit-and-run attacks by sharks can be solved with a new technique that identifies the culprits by the unique chomp they put on their victims, according to a University of Florida researcher and shark expert.
Bacterial gut symbionts are tightly linked with the evolution of herbivory in ants
Dec 01, 2009 |
5 / 5 (1) |
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Broadly speaking, ants have two different feeding strategies. A large proportion of all species are "carnivorous," meaning that they are generalist predators feeding on other small animals or scavenging on ...
First comprehensive review of the state of Antarctica's climate
Space & Earth / Earth Sciences
Dec 01, 2009 |
3.7 / 5 (11) |
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The first comprehensive review of the state of Antarctica's climate and its relationship to the global climate system is published this week by the Scientific Committee on Antarctic Research (SCAR). The review - Antarctic ...
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