Captive assurance colonies for amphibian species facing extinction from chytrid fungus require careful welfare management to maintain healthy populations for potential reintroduction.
Captive assurance colonies for endangered amphibians serve an irreplaceable conservation function, but the welfare of individual animals in these programmes deserves serious attention. Amphibians kept in suboptimal humidity, temperature, or substrate conditions develop skin problems that are painful and life-limiting. Social species kept in isolation show stress behaviours. The challenge is that many assurance colony holders are conservation biologists rather than animal welfare specialists, and welfare monitoring may not be systematic. Integrating welfare assessment — body condition monitoring, stress behaviour observation, and environmental quality checks — into standard assurance colony protocols improves both individual welfare and the quality of animals available for reintroduction.