Population dynamics

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Population 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.

For more information about Population dynamics, read the full article at Wikipedia.
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News tagged with population dynamics


Blue whale

Blue whales singing with deeper voices

Biology / Plants & Animals

created Dec 08, 2009 | popularity 4.3 / 5 (7) | comments 8

(PhysOrg.com) -- Blue whales, the largest animals on earth, are singing with deeper voices every year, but scientists are unsure of the reason.





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Spotting evidence of directed percolation

Spotting evidence of directed percolation

Physics / General Physics

created Nov 17, 2009 | popularity 3.5 / 5 (2) | comments 0

A team of physicists has, for the first time, seen convincing experimental evidence for directed percolation, a phenomenon that turns up in computer models of the ways diseases spread through a population ...


Researchers look at water-energy impacts of climate change

Space & Earth / Environment

created Dec 01, 2009 | popularity 4 / 5 (4) | comments 1

(PhysOrg.com) -- Climate projections for the next 50 to 100 years forecast increasingly frequent severe droughts and heat waves across the American Southwest, sinking available water levels even as rising mercury drives up ...


A mechanical model of vocalization

Physics / General Physics

created Nov 23, 2009 | popularity not rated yet | comments 1

When people speak, sing, or shout, they produce sound by pushing air over their vocal folds -- bits of muscle and tissue that manipulate the air flow and vibrate within it. When someone has polyps or some other problem with ...


Severity of H1N1 flu in US during current flu season may be less than feared

Medicine & Health / Diseases

created Dec 08, 2009 | popularity not rated yet | comments 1

A new study from researchers at the UK Medical Research Council and the Harvard School of Public Health (HSPH) projects that the severity of the H1N1 flu during the autumn-winter flu season in the U.S. will likely be less ...


Drinks industry supplanting government role in alcohol policies in Sub-Saharan Africa

Medicine & Health / Health

created 3 hours ago | popularity not rated yet | comments 0

A recent comparison of proposed national alcohol policies in Lesotho, Malawi, Uganda, and Botswana shows that the drinks industry has assumed a significant and detrimental role in designing national alcohol policies in Sub-Saharan ...



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