The content you've requested is available without charge only to active Sigma Xi members and
If you are an active member or an individual subscriber, please log in now in order to access this article.
If you are not a member or individual subscriber, you can:
Conservation biology seeks to maintain both unique species and the genetic diversity within those species. Without the help of molecular genetics, however, it's not necessarily easy to quantify either quality. Using mitochondrial DNA, polymerase chain reaction techniques, and microsatellite DNA, molecular geneticists help biologists determine which species are genetically distinct and whether their DNA are adequately diverse, allowing wise management of endangered species. Examples are cited for the management of black rhinoceroses, owl monkeys, whales, Mexican gray wolves and chimpanzees.
Connect With Us:
An early peek at each new issue, with descriptions of feature articles, columns, and more. Issues contain links to everything in the latest issue's table of contents.News of book reviews published in American Scientist and around the web, as well as other noteworthy happenings in the world of science books.
To sign up for automatic emails of the American Scientist Update and Scientists' Nightstand issues, create an online profile, then sign up in the My AmSci area.
JSTOR, the online academic archive, contains complete back issues of American Scientist from 1913 (known then as the Sigma Xi Quarterly) through 2005.
The table of contents for each issue is freely available to all users; those with institutional access can read each complete issue.
View the full collection here.
Receive notification when new content is posted from the entire website, or choose from the customized feeds available.