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| **Queen angelfish at the Florida reef,                                         NOAA Photo Library. Click image to enlarge.**
Biodiversity**Tracer Bullet 97-5**- Scope 
- Introduction 
- Subject Headings 
- Basic Texts 
- Specialized Titles 
- Related Titles 
- Additional Reference Sources 
- Conference Proceedings 
- Government Publications 
- Technical Reports 
- Selected Technical Reports
- Bibliographies 
- Abstracts and Indexes 
- Journals 
- Representative Journal Articles 
- Selected Materials 
- Additional Sources of Info
- Selected Internet Resources
**Unless otherwise noted, the Internet sites listed in this               directory are provided by organizations other than the Library of               Congress. These links are being offered as a convenience and for               informational purposes only; they do not constitute an endorsement               or an approval by the Library of Congress of any of the products,               services, or opinions of the corporation, organization or individual.               The Library of Congress bears no responsibility for the accuracy,               legality, or content of the external site or for that of subsequent               links. Contact the external site for answers to questions regarding               its content.****SCOPE**Biodiversity, or biological diversity, is usually defined               as the variety and variability of living organisms and the biological               communities in which they live, plus the ecological and evolutionary               processes that keep them functioning. There are four levels of diversity:               genetic, species, ecosystem, and landscape. Biodiversity is directly               and indirectly affected by human activities, which sometimes lead               to unintended reductions in diversity. Many scientists and conservationists               think the loss of biodiversity should already be considered a crisis               and will accelerate in the near future. They argue that biodiversity               must be maintained because of the ecosystem services, economic benefits,               and evolutionary potential it provides, as well as for esthetic               and ethical reasons. Not intended to be a comprehensive bibliography,               this guide is designed--as the name of the series implies--to put               the reader "on target." **INTRODUCTIONS TO THE TOPIC**
Myers, Norman. *Tackling mass extinction of species: a great               creative challenge*. Berkeley, University of California, College               of Natural Resources, Dept. of Forestry and Resource Management,               1986. 40 p. (The Horace M. Albright lectureship in conservation,               26)                  S900.H6 no. 26 

Wildlife conservation. In *Environmental viewpoints: selected               essays and excerpts on issues in environmental protection*.               v. 1. Detroit, Gale Research, c1992. p. 473-504.                  TD169.E656 <SciRR> 

Wilson, Edward O. *Threats to biodiversity*. Scientific               American, v. 261, Sept. 1989: 108-112, 114, 116.                  T1.S5 

TOP OF PAGE
**SUBJECT HEADINGS**
Subject Headings used by the Library of Congress, under which books               on biodiversity can be located in most card, book, and online catalogs,               include the following: 
**Highly relevant** |