Seasonal reproductive cycle of the Galápagos tortoise (Geochelone nigra) in captivity

Abstract 10.1002/(SICI)1098-2361(1998)17:63.3.CO;2-V The reproductive physiology of nine Galápagos tortoises (Geochelone nigra) was studied from February 1988 to May 1989. The study encompassed the annual reproductive cycle to include complete mating and nesting sequences. Male (n = 4) and female (n = 5) seasonal reproductive changes were determined throughout the study with endocrine analysis and ultrasonographic […]

Age and body size of captive hawksbill turtles at the onset of follicular development

The aim of this study was to record the age and body size of 23 captive female hawksbill turtles at the onset of follicular development. The age, straight carapace length (SCL), and body mass (BM) of the turtles were recorded between 2006 and 2014 at follicular development (determined via ultrasonography) these parameters were 17.7 ± 1.7 years […]