Population dynamics
hidePopulation dynamics is the branch of life sciences that studies short- and long-term changes in the size and age composition of populations, and the biological and environmental processes influencing those changes. Population dynamics deals with the way populations are affected by birth and death rates, and by immigration and emigration, and studies topics such as aging populations or population decline.
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News tagged with population dynamics
Birth control could help combat climate change
Sep 18, 2009 |
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(AP) -- Giving contraceptives to people in developing countries could help fight climate change by slowing population growth, experts said Friday.
Agricultural methods of early civilizations may have altered global climate, study suggests
Space & Earth / Earth Sciences
Aug 17, 2009 |
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Massive burning of forests for agriculture thousands of years ago may have increased atmospheric carbon dioxide enough to alter global climate and usher in a warming trend that continues today, according to a new study that ...
The value of variation: Ecologists consider the causes and consequences
Jul 22, 2009 |
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Consider the case of the three-spine stickleback. These tiny fish that thrive in oceans and in fresh water might appear to be the same, yet ecologists are finding that they are actually a diverse collection of very specialized ...
Human Movement Plays Critical Role in Disease Transmission
Jul 21, 2009 |
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To control mosquito-borne diseases like dengue, researchers need to look at the behavior of people, not just the insect that transmits the disease, according to new research by Steven Stoddard of the University ...
A connected world gives viruses the edge
May 27, 2009 |
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That's one conclusion from a new study that looked at how virulence evolves in parasites. The research examined whether parasites evolve to be more or less aggressive depending on whether they are closely ...
Seeing beyond the invisible: Scientists find formula to uncover our planet’s past and help predict its future
May 27, 2009 |
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(PhysOrg.com) -- Studies of climate evolution and the ecology of past-times are often hampered by lost information - lost variables needed to complete the picture have been long thought untraceable but scientists ...
Do zoo programs help save endangered species?
Apr 13, 2009 |
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Do zoos have serious programs to save endangered species, besides putting a few captives on display for everyone to see? (Kelly Traw, Seattle)
Physicists Show that Correlated Environmental Variations Can Quicken Extinctions
Jan 13, 2009 |
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(PhysOrg.com) -- In general, population extinction is a natural process. For one reason or another, an estimated 99.9% of all species that have lived on Earth are now extinct. However, the reasons for a species ...
Studies of small water fleas help ecologists understand population dynamics
Biology /
Oct 30, 2008 |
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A study of populations of tiny water fleas is helping ecologists to understand population dynamics, which may lead to predictions about the ecological consequences of environmental change.
