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Perhaps you meant tropic levels?

Search results for "trophic levels"

Filters: 2001 2001 ×
Viewing 1 - 5 of 5 results by relevance
Consensus Study Report

A Risk-Management Strategy for PCB-Contaminated Sediments  (2001)

Consensus Study Report

Envisioning the Agenda for Water Resources Research in the Twenty-First Century  (2001)

Consensus Study Report

Marine Protected Areas: Tools for Sustaining Ocean Ecosystems  (2001)

Consensus Study Report

Enhancing NASA's Contributions to Polar Science: A Review of Polar Geophysical Data Sets  (2001)

Carving Our Destiny: Scientific Research Faces a New Millennium  (2001)