Record Details

Drummond, Hugh
Adaptiveness of island nest-sites of green iguanas and slider turtles
Journal Article
Iguana iguana
Iguanas in the Lake Gatun area of the Panama Canal commonly make their nests on small islands. Studies of Rand (1968), Rand and Robinson (1969), Rand and Dugan (in prep.) and Sexton (1975) suggest that the chief advantage of the behavior is security from terrestrial nest predators, and that this outweighs the disadvantages associated with relative site scarcity, concentration of nests in space, and migration costs to females. I here present evidence from a natural "experiment" lending support to the above suggestion and extending it to slider turtles, Pseudemys scripta.