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Life in Extreme Environments: Who is on Top in the Food Chain?
http://tea.armadaproject.org/activity/tea_activity_foodchain.html
From DLESE Community Collection (DCC)
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In this activity, students will design experiments to gain some understanding of the feeding rates of Rotifers and/or Tardigrades (charismatic microfauna). These organisms are the largest found in Lake Hoare in the Taylor Valley, making them the top predator in the food chain of this lake ecosystem. The rate of feeding and the amount of food available may determine population size. Students will use organisms collected locally or provided by the teacher. They will explore differences between their own collected data on feeding rates with that available on the Antarctic organisms that live in Lake Hoare. They will discover if feeding rates of rotifers can serve as an indicator of energy availability and carbon balance in Lake Hoare.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
Type of resource:
  • For the classroom:
    • Lab activity
Subject:
  • Biology
  • Ecology
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
Copyright 1996 - 1998, William Marsh Rice University (WMRU). All rights reserved. Any person or entity may view, copy, print, and distribute this document or any portion, subject to the following: this document, or any portion, may be used for non-commercial informational purposes only; and any copy of this document, or any portion hereof, must include this copyright and disclaimer notice in its entirety. The information in this document may be the subject of other intellectual property rights reserved by WMRU or others and are not licensed hereunder. The information contained herein shall not be construed as an inducement to infringe the patent, copyright, or other intellectual property rights of WMRU or others.
DLESE Catalog ID: DLESE-000-000-005-948
Educational standards:
  • National Science Education Standards (NSES):
    • 9-12:
      • C - Life science:
        • Interdependence of organisms
        • Matter, energy, and organization in living systems
      • D - Earth and space science:
        • Energy in the earth system
Resource contact / Creator / Publisher:
Author: Barbara Schulz
Lakeside School

Publisher: The Armada Project
http://www.armadaproject.org/