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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

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Peer reviewed Peer reviewed
ERIC Number: EJ154217
Record Type: CIJE
Publication Date: 1977
Pages: N/A
Abstractor: N/A
Reference Count: 0
An Ecological Triangle
Styron, C. E.
American Biology Teacher, 39, 2, 102-104, Feb 77
Describes a simplified model for summarizing ecological relationships. The components of the ecological triangle are biotic, abiotic materials, and abiotic conditions. Discusses three-way component interactions, population studies, limiting factors of pollution on humans, and difficulties in establishing casual relationships in field research. (CS)
Publication Type: N/A
Education Level: N/A
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Language: N/A
Sponsor: N/A
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