How human activities influence changes in ecosystems Therefore, the student is able to: A. Explain the distribution of ecosystems from local to global scales, as exemplified by being able to Describe ecosystems and the differences between them, using photographs and other media as illustrations (e.g., create collages showing flora and fauna, participate in making student videos of local ecosystems) Explain how and why ecosystems differ from place to place as a consequence of differences in soils, climates, and human and natural disturbances Identify changes in the local ecosystem resulting from human intervention (e.g., river wetlands being replaced by expanded farming activity on a floodplain) B. Explain the functions and dynamics of ecosystems, as exemplified by being able to Identify the flora and fauna of an ecosystem and tell how they are linked and interdependent Explain the flow of energy and the cycling of matter through an ecosystem (e.g., the food chain or the hydrologic cycle) Explain the feeding levels and location of elements in the food chain (e.g., carnivores eating herbivores) C. Explain how physical processes influence ecosystems, as exemplified by being able to Explain how specific populations within ecosystems respond to environmental stress Describe and explain the life cycle of a lake ecosystem, including the process of eutrophication Explain ecosystems in terms of their characteristics and ability of withstand stress caused by physical events (e.g., a river system adjusting to the arrival of introduced plant species such as hydrilla;
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illustrations (e.g., create collages showing flora and fauna, participate in making student videos of local ecosystems ecosystems carnivores the local ecosystem stress collages a river system B. physical processes
Explain differ eating resulting caused showing adjusting Explain explain
how and why ecosystems differ from place to place as a consequence of differences in soils, climates, and human and natural disturbances
to place as a consequence of differences in soils, climates, and human and natural disturbances
herbivores
from human intervention
by physical events
flora and fauna
to the arrival of introduced plant species such as hydrilla
the functions and dynamics of ecosystems
the life cycle of a lake ecosystem, including the process of eutrophication