News tagged with dominant species
Tennessee foresters helping to return chestnuts to American forests
Sep 23, 2009 |
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The American chestnut was a dominant species in eastern U.S.'s forests before a blight wiped it out in the early 1900s. Today it's being returned to the landscape thanks in part to work by a University of ...
Jellyfish joyride a threat to the oceans
Jun 08, 2009 |
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Early action could be crucial to addressing the problem of major increases in jellyfish numbers, which appears to be the result of human activities.
Invasive Parasite Spreading Among West Coast Estuaries
Feb 26, 2009 |
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(PhysOrg.com) -- A parasitic isopod that scientists identified five years ago has all but decimated mud shrimp populations in coastal estuaries ranging from British Columbia to northern California - with the ...
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Symmetrical brains can be an advantage
Oct 01, 2009 |
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(PhysOrg.com) -- Many studies have found widespread asymmetry in the brains of different species, including humans, and most have assumed asymmetry is advantageous. A new paper, published in the Proceedings of ...
Females decide whether ambitious males float or flounder
Biology /
Jan 30, 2008 |
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Aggression, testosterone and nepotism don’t necessarily help one climb the social ladder, but the support of a good female can, according to new research on the social habits of an unusual African species of fish.
Female monkeys more dominant in groups with relatively more males
Biology /
Jul 16, 2008 |
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Female monkeys are more dominant when they live in groups with a higher percentage of males. This is caused by self-organisation. This surprising discovery was made by researchers at the University of Groningen. What makes ...
The faster they come: How social status is negotiated among fishes
Jun 28, 2009 |
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Being the neighbourhood bully has its obvious advantages, but it becomes useless if your authority is continuously being challenged. In many animal species, however, stable hierarchies are routinely formed in which some individuals ...
New fish discovered in the Bellingshausen Sea
Mar 06, 2009 |
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(PhysOrg.com) -- The new species of Antarctic fish, Gosztonyia antarctica, has been discovered at a depth of 650 metres in the Bellingshausen Sea in the Antarctic Ocean, an area which has not been studied ...
Which came first, social dominance or big brains? Wasps may tell
Biology /
Mar 11, 2008 |
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There’s new evidence supporting the idea that bigger brains are better. A study of a tropical wasp suggests that the brainpower required to be dominant drives brain capacity.
The importance of being helpful -- Cooperative cichlids boost their own reproductive success
May 15, 2009 |
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Subordinate individuals living within a group of vertebrates sometimes assist a more dominant pair by helping to raise the dominant pair's offspring and this has been shown to occur among subordinate female ...
Genomes reveal bacterial lifestyles
Sep 07, 2009 |
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Sampling just a few genes can reveal not only the "lifestyle" of marine microbes but of their entire environments, new research suggests.
Dogs provide insight into human evolution
Biology /
Mar 05, 2007 |
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German scientists say many species, not just humans, can draw inferences about the intentions of other individuals to cooperate in complex tasks.
Lake Michigan fish populations threatened by decline of tiny creature
Biology /
Feb 19, 2009 |
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The quick decline of a tiny shrimp-like species, known scientifically as Diporeia, is related to the aggressive population growth of non-native quagga mussels in the Great Lakes, say NOAA scientists. As invasive mussel numbe ...
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