Wikelski and Romero (2003)found that large marine iguanas had higher reproductive success than smaller iguanas did.However,the large iguanas were generally in poor body condition because they could not eat enough;at higher temperatures their foraging efficiency improved,allowing them to eat more.Thus,Wikelski and Romero hypothesize that iguana size will _____ as global warming gradually increases air and water temperatures in the Galápagos Islands.

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Wikelski and Romero's study suggests that larger size results in higher reproductive success, but larger iguanas have difficulty obtaining enough food. However, at higher temperatures, their foraging efficiency improves, allowing them to eat more. As global warming gradually increases temperatures in the Galápagos Islands, iguanas may be able to obtain more food more easily, which could lead to an increase in body size and further reproductive success.

Wikelski and Romero (2003)found That Large Marine Iguanas Had Higher