Record Details

Henderson, Robert W
Aspects of the ecology of the juvenile common iguana (Iguana iguana)
Journal Article
Iguana rhinolopha;Iguana iguana
Juvenile (less than 3 years old) common iguanas (Iguana iguana) were studied for 10.5 months in Belize City, Belize. The study area was located at mangrove edge and lizards were found chiefly in open, sunny situations on low vegetation (primarily Citharexylem and Mimosa). There was a positive correlation between snout-vent length and perch height and it is suggested that this is a function of food preferences of different age groups and thermoregulation. Young and adult iguanas were segregated ecologically in the Belize area. Mean activity range (by the convex polygon method) was 3.24 acres. Activity ranges appear to be restricted and are probably influenced by the distribution of trees and bushes. Population density was estimated to be 0.25-0.41 individuals/are. Mean daily growth rate was 0.22 mm and Iguana probably becomes sexually mature during its 3rd year. The diurnal Iguana may retire to its sleeping perch after dark. The clumped distribution of young iguanas may be due to sociability and/or availability of food. The tail was used for defense by 4- to 5-month-old individuals.