This NY Regents prep site provides a nice overview of what abiotic and biotic factors of an ecosystem are, as well as a brief description of carrying capacity.

Students correlate graphs of vegetation vigor with those of temperature and precipitation data for four diverse ecosystems, ranging from those near the equator to the poles, to determine which climatic factor is limiting growth.

Students build a model ecosystem to simulate the life and limiting factors of the Terrapin turtle.

This lesson introduces students to their task of designing a permanent guest village within the Saguaro National Park. The design must provide a true desert experience to visitors while also emphasizing sustainable design, protection of...