All six species of sea turtles found in U.S. waters are listed as endangered or threatened, but the exact population sizes of these species are unknown due to a lack of key information regarding birth ...

Scientists at the Cornell Lab of Ornithology have developed a novel way to model whether the populations of more than 500 bird species are increasing or decreasing. The method solves a nagging ...

With a new method developed at the University of Bergen, researchers can now refine the analysis of proteins taking into account population diversity. The study is published in the journal Nature ...

This report deals with methods of obtaining information in population censuses, on the size of the population and its principal characteristics. This is Population Studies No. 4 for the UN Department ...

Virginia Tech researchers have found a new way to identify genetic targets useful for control of mosquito populations, potentially offering an alternative to insecticides. Their study, published in ...

B3 modelling experience and extension to modelling of robust time trends for ASFR/TFR, and adult and old-age mortality data Leontine Alkema. Lessons learned from the B3 development and application to ...

The 1951 Convention and the 1969 OAU Convention provide clear refugee definitions. The fact that more than 140 countries have acceded to the 1951 Convention or its 1967 Protocol, and many of these ...

Objective To quantify US female and male Olympic athletes’ longevity and the years of life lost or saved due to multiple causes of death as compared with the US general population. Methods Former US ...