Exercise 1. Look at the virtual field trip to the lake and create an ecosystem d
ID: 5960 • Letter: E
Question
Exercise 1. Look at the virtual field trip to the lake and create an ecosystem diagram containing the producers, herbivores, carnivores, and predators.Virtual Lake Field Trip
Now compare this ecosystem with the grasslands ecosystem in the virtual field trip in the link below. (comparative essay for Exercise 1)
Virtual Grassland Field Trip
Exercise 2.
Understanding The Ecological Processes
During Ecosystem Formation and Development
In this ecology exercise, you will discover and understand the ecological processes that often take place during pond succession or pond ecosystem development. You will discover and understand how fauna and flora interact with each other and with the components of the physical environment (abiotic factors) during the various stages of ecosystem development and how these processes affect the existence of a given biological community.
Procedures:
1. Here are 5 diagrams that represent the five stages of pond succession. Study the five diagrams and arrange them in correct order of succession. Then label them accordingly as " Stage I, Stage II, Stage III Stage IV, Stage V. Use tables 4, 5, 6, and 7 to record your observations.
Stage 1 – Picture A Stage 3- Picture E Stage 5 – Picture D
Stage 2 – Picture C Stage 4 – Picture B
2. Using the scale of 1 cm = 3 meters, measure using a metric ruler, the depth and the length of the pond in each diagram.
3. Count and record the total number of organisms, the number of different kinds of organisms, and the number of trees in each diagram. Then measure the height of the trees and record their range in each diagram.
4. Identify at least three abiotic factors in each diagram that affect life within that ecosystem.
5. Identify the producers, herbivores (consumers), predators (consumers), and the decomposers (consumers) in each diagram.
6. Identify the number of food chains in each diagram. Then, identify the trophic levels in each diagram.
7. In detail, describe the changes that take place in the pond ecosystem as presented in the five diagrams. Include the following in your description : change in the size of the pond, the number and kinds of fauna and flora, and the range of the height of the trees, the number of food chains, and the number of trophic levels. (essay/description as well as the three tables filled in are required for Exercise 2)
Table 1. The Five Ecosystems and the living organisms that inhabit them
Type of Ecosystem Relative number of Organisms Names of Organisms
Flora Fauna
Table 2. Mode of Nutrition among organisms in identified Ecosystems
Identified Ecosystem Relative number of Organisms Kinds of organisms Mode of Nutrition
Herbivores Mode of Nutrition
Carnivores Mode of Nutrition
Omnivores Mode of Nutrition
Decomposrs
Table 3. Trophic Levels in the Identified Ecosystems
Identified Ecosystem First trophic level
example Second trophic level
example Third trophic level
example Fourth trophic level
example Fifth trophic level (!?)
example
Exercise 3. It has been said that life activities that characterize living organisms require an expenditure of energy. Use food chains to identify and illustrate the pathways of energy through the living parts of each of five ecosystems. (Relate all tables back to energy usage within a short essay.)
Explanation / Answer
Exercise 1. Look at the virtual field trip to the lake and create an ecosystem diagram containing the producers, herbivores, carnivores, and predators. Virtual Lake Field Trip Now compare this ecosystem with the grasslands ecosystem in the virtual field trip in the link below. (comparative essay for Exercise 1) Virtual Grassland Field Trip YOUR LINK DOESN'T WORK. CAN YOU TRY TO IT AGAIN
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