News tagged with population
From yeast, researchers learn how populations collapse
In the early 1990s, overfishing led to the collapse of one of the most bountiful cod fisheries in the world, off the coast of Newfoundland. Twenty years later, the cod population still has not recovered, dramatically ...
Jun 01, 2012 |
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Mechanical properties of stem cells can foretell what they will become
To become better healers, tissue engineering need a timely and reliable way to obtain enough raw materials: cells that either already are or can become the tissue they need to build. In a new study, Brown ...
May 21, 2012 |
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House mice put endangered petrels at risk of extinction
Common house mice are demolishing what could be the only breeding population of endangered Atlantic petrels in the world, scientists have found.
May 16, 2012 |
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Elephant seal tracking reveals hidden lives of deep-diving animals
Researchers at the University of California, Santa Cruz, who pioneered the use of satellite tags to monitor the migrations of elephant seals have compiled one of the largest datasets available for any marine mammal species, ...
May 15, 2012 |
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Big-mouthed babies drove the evolution of giant island snakes
Some populations of tiger snakes stranded for thousands of years on tiny islands surrounding Australia have evolved to be giants, growing to nearly twice the size of their mainland cousins. Now, new research ...
May 15, 2012 |
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Whale population size, dynamics determined based on ancient DNA
Estimates of whale population size based on genetics versus historical records diverge greatly, making it difficult to fully understand the ecological implications of the large-scale commercial whaling of the 19th and early ...
May 09, 2012 |
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Nutrient supply after algal bloom determines the succession of the bacterial population
Algal blooms can considerably interfere with summer holidays by the sea. In the coastal zone of temperate regions a spring algal bloom is not a sign of excessive nutrient input, but most of all a consequence ...
May 04, 2012 |
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Sharing landscapes with wildlife may be unrealistic
(Phys.org) -- Expecting wild animals to thrive in increasingly fragmented habitats alongside a growing human population may be unrealistic, say scientists.
May 03, 2012 |
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Blood samples show deadly frog fungus at work in the wild
The fungal infection that has killed a record number of amphibians worldwide leads to deadly dehydration in frogs in the wild, according to a new study by University of California, Berkeley and San Francisco State University ...
Apr 25, 2012 |
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Shedding light on debate over organic vs. conventional agriculture: Study calls for combining best of both approaches
(Phys.org) -- Can organic agriculture feed the world?
Apr 25, 2012 |
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Plant perfumes woo beneficial bugs
Scientists funded by the Biotechnology and Biological Sciences Research Council (BBSRC) have discovered that maize crops emit chemical signals which attract growth-promoting microbes to live amongst their roots. This is the ...
Apr 24, 2012 |
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Study finds that mild winters are detrimental to butterflies
The recent mild winter throughout much of the United States was a cause for celebration for many. However, butterfly aficionados shouldn't be joining in the celebration.
Apr 20, 2012 |
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Bats rebound in NY caves first hit by white-nose
(AP) -- Researchers found substantially more bats in several caves that were the first ones struck by white-nose syndrome, giving them a glimmer of hope amid a scourge that has killed millions of bats in ...
Apr 19, 2012 |
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Meat eating led to earlier weaning, helped humans spread across globe
When early humans became carnivores, their higher-quality diet allowed mothers to wean babies earlier and have more children, with potentially profound effects on population dynamics and the course of human evolution, according ...
Apr 18, 2012 |
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Counting penguins from space
A new study using satellite mapping technology reveals there are twice as many emperor penguins in Antarctica than was previously thought. The results provide an important benchmark for monitoring the impact ...
Apr 13, 2012 |
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Population
In biology, a population is the collection of inter-breeding organisms of a particular species; in sociology, a collection of human beings. Individuals within a population share a factor may be reduced by statistical means, but such a generalization may be too vague to imply anything. Demography is used extensively in marketing, which relates to economic units, such as retailers, to potential customers. For example, a coffee shop that wants to sell to a younger audience looks at the demographics of an area to be able to appeal to this younger audience.
For more information about Population, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
