Age-Dependent Enclosure Use in Juvenile Chinese Crocodile Lizards, Shinisaurus crocodilurus crocodilurus
Publication Type: |
Journal Article |
Year of Publication: |
2021 |
Authors: |
Kimberley C Carter, James J Hicks, Daniel Kane, Benjamin Tapley, Christopher J Michaels |
Publication/Journal: |
Journal of Zoological and Botanical Gardens |
Keywords: |
animal welfare, captive management, niche use, resource |
Abstract:
This study compared the resource use of juvenile zoo-living Chinese crocodile lizards, Shinisaurus crocodilurus crocodilurus across three observation windows, spanning nine months, accounting for time of day and lizard age, and under consistent environmental conditions. Lizards showed a significant difference in proportionate resource use, quantified using a modified spread of participation indices between the second and final sampling period, such that with increasing age, resources were more equally utilised. The time of day did not have a significant effect on resource use. Lizards in this study significantly increased their use of water bodies and branches outside the bask zone and decreased their use of the land areas within the bask zones over time. Resource use data suggests the importance of providing enclosures which cater to ontogenetic shifts in captive individuals or within mixed age groupings.