|Life in Extreme Environments: Who is on Top in the Food Chain?|
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:
Type of resource:
No specific technical requirements, just a browser required
Cost / Copyright:
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DLESE Catalog ID: DLESE-000-000-005-948
Resource contact / Creator / Publisher:
Author: Barbara Schulz
Publisher: The Armada Project