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Results 1 - 10 from 482 for age structure in 0.286 sec.
COPA - PCBs and Superfund in Bloomington, Indiana
PCBs and Health (David Carpenter, MD, 1998) New PCB research from Dan Sparks & Diane Henshell Age structure & growth of Creek Chub in PCB-contaminated streams External Heart Deformities in Passerine Birds exposed ...
www.copa.org
Argument - Population Intervention Possibilities
Chinese population. China currently has more than 419 million children and young adults under the age of 20, making up one-third ... levels of fertility and mortality, China's population would already shrink, if the very young age structure were not generating a large number of births. This structural effect is called "population momentum ...
www.iiasa.ac.at
COPA, Inc.
Baker, June 12 Margo Blackwell Mike Baker New PCB research from Dan Sparks & Diane Henshell Age structure & growth of Creek Chub in PCB-contaminated streams External Heart Deformities in Passerine Birds exposed ...
copa.org
U.S. Global Change Research Information Office
In other words, in countries that are already poor, rapid ...
gcrio.org
Consequences (vol. 1, No.2) - Global and U.S. National Population Trends
The TFR for several representative developing countries ... when couples have only two children. Most developing nations are characterized by a very young age structure that ensures that large numbers of young people will enter the parenting ages for the ...
gcrio.org
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People in the Great Lakes Region
Both Canada and the United States are experiencing similar age structure changes as the post-war baby boom bulge advances. A new baby boom is likely ...
www.great-lakes.net
USGS National Wetlands Research Center: Dendroecology
Click Here Research Age Structure and Climate-growth Relations of Sand Pine (Pinus clausa) Communities in Florida (Dr. Thomas W. Doyle) Age Structure and Health of Baldcypress at Caddo Lake ...
www.nwrc.usgs.gov
National Coalition for Marine Conservation's position statements on current fishery management issues such as longline fisheries, offshore aquaculture, marine protected areas and ecosystem-based management
US must enhance our ability to catch swordfish in a selective ...
savethefish.org
Forest Composition and Structure on the Colorado Plateau
Colorado Front Range. Journal of Biogeography 25: 743-755. Menzel, J. P. 1996. Historical changes in forest structure in ... Service, Washington, D.C., 56 pp. Stein, S. J. 1988. Explanations of the imbalanced age structure and scattered distribution of ponderosa pine within a high-elevation mixed coniferous forest. Forest ...
www.cpluhna.nau.edu
Chart - China's Total Population & Sex Ratio by Age, 1990
Data - Population China's Total Population by Sex and Age, Census 1990 This population pyramid from the 1990 census tells ... age in 1990 (that is, they were born between 1959 and 1963) is substantially smaller than the generations before and afterwards. This severe "cut" in China's age structure ... again. The largest cohorts were 16 and 26 years of age in 1990 - that is they where born between 1964 and ...
www.iiasa.ac.at
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