The energy transfer between trophic levels is usually around 10%. To support one hawk, you would need to consider the calorie requirements for each species in the food chain.
1. A hawk needs 300 calories per day. Since only 10% of energy is transferred between levels, it needs 3,000 rabbit calories (300 / 0.10 = 3,000).
2. Rabbits have 500 calories each. You need 6 rabbits to provide the necessary calories to the hawk (3,000 / 500 = 6).
3. Each rabbit needs 100 calories per day. To support the 6 rabbits, you need a total of 600 calories from clover (6 * 100 = 600).
4. Clover plants have 10 calories each. So, you need 60 clover plants to support the 6 rabbits (600 / 10 = 60).
Therefore, it takes approximately 60 clover plants per day to support one hawk.
Consider the following food chain: hawk - rabbit - clover. Each species will contain a different amount of calories in its body (clover: 10 calories, rabbit: 500 and hawk: 1200). Each species has a different daily caloric requirement (clover: sunlight, rabbit: 100 calories, hawk: 300).
How many clover plants, per day, does it take to support one hawk?
approximately 600 clover plants
approximately 30 clover plants
approximately 60 clover plants
approximately 3 clover plants
None, clover plants do not support hawks.
I found this---- but not sure if it relates to Hawk needs 300 calories from eating rabbits, so needs 3,000 rabbit calories available since only 10% moves up the food chain. 3,000 rabbit calories (where food energy is 500 calories per rabbit) means you need 6 rabbits to feed the hawk.
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