Suppose You Are Studying the Nitrogen Cycling in a Pond

Multiple Choice

Suppose you are studying the nitrogen cycling in a pond ecosystem over the course of a month. While you are collecting data, a flock of 100 migrating Canada geese lands and spends the night. How could you account for the effect of this event on the pond's nitrogen cycling?

A) Find out how much nitrogen is consumed in plant material by a Canada goose over about a 12-hour period, multiply this number by 100, and add that amount to the total nitrogen in the ecosystem.
B) Find out how much nitrogen is eliminated by a Canada goose over about a 12-hour period, multiply this number by 100, and subtract that amount from the total nitrogen in the ecosystem.
C) Find out how much nitrogen is consumed and eliminated by a Canada goose over about a 12-hour period and multiply this number by 100; enter the net value of nitrogen associated with the goose visitation into the nitrogen budget of the ecosystem.
D) Do nothing. The Canada geese visitation to the lake would have a negligible impact on the nitrogen budget of the pond.
E) Put a net over the pond so that no more migrating flocks can land on the pond and alter the nitrogen balance of the pond.