The reproduction and growth of Phrynosoma ditmarsi (sauria: Iguanidae) in captivity
Publication Type: |
Journal Article |
Year of Publication: |
1989 |
Authors: |
Richard R. Montanucci |
Publication/Journal: |
Zoo Biology |
Publisher: |
A Wiley Company, Inc., Wiley Subscription Services |
Keywords: |
horned lizards, reptile husbandry |
ISBN: |
1098-2361 |
Abstract:
Abstract 10.1002/zoo.1430080205.abs Aspects of the reproduction and growth of Phrynosoma ditmarsi from Sonora, Mexico, were observed in captivity. Lizards were maintained indoors with a seasonally adjusted photoperiod. Mating occurred from August through December, with the majority of copulations observed in August, September, and October. Lizards were over-wintered between temperatures of 13°C and 16°C, with occasional drops to 8° C. The female reproductive cycle is not completely understood. Females may have stored sperm over the winter months, with ovulation and fertilization occurring in the following spring. Alternatively, embryogenesis may have been interrupted during the winter. Parturition occurred in June and July. Males became sexually mature at 13 months of age. Females first copulated at this age, resulting in the production of young at 24 months of age. Courtship and non-receptive behaviors were similar to those of other Phrynosoma.