Question

A student is analyzing data that compare the change in the total number of wading bird nests in the Everglades to the change in rainfall. Wading birds feed primarily on fish. Fewer nests were observed in dry years than wet years.

What is a reasonable inference about the relationship between wading bird reproductive success and water depth in the Everglades?

(1 point)
Responses

Water depth does not affect wading birds' access to food but does affect wading birds' reproductive success.
Water depth does not affect wading birds' access to food but does affect wading birds' reproductive success.

Water depth likely affects wading birds' access to food and thus affects wading birds' reproductive success.
Water depth likely affects wading birds' access to food and thus affects wading birds' reproductive success.

Water depth likely affects wading birds' access to food, but this does not affect wading birds' reproductive success.
Water depth likely affects wading birds' access to food, but this does not affect wading birds' reproductive success.

Water depth does not affect wading birds' access to food and thus does not affect wading birds' reproductive success.

Answer 1

Water depth likely affects wading birds' access to food and thus affects wading birds' reproductive success.

Fewer nests in dry years (less rainfall → lower water depth) and the birds' fish diet imply that changes in water depth alter prey availability, which in turn influences nesting and reproductive success.