Homing through ecological barriers in Balkan pond turtles

Area of Science:

• Animal behavior
• Ecology
• Navigation

Background:

• Homing behavior, the ability to return home, is crucial for survival but extensively studied in birds.
• Reptilian navigation, particularly in semi-aquatic species, remains under-researched.
• Understanding navigation in diverse taxa is vital for ecological and evolutionary insights.

Purpose of the Study:

• To investigate the homing behavior and navigation capabilities of the Balkan pond turtle (Mauremys rivulata).
• To assess the influence of environmental factors on turtle navigation.
• To establish the Balkan pond turtle as a model organism for navigation research and conservation.

Main Methods:

• Utilized the ATLAS tracking system to monitor the movements of 36 displaced Balkan pond turtles.
• Displaced turtles up to 2.5 km from their original capture locations.
• Developed a correlated random-walk model to simulate and compare turtle movement patterns.

Main Results:

• Most displaced turtles successfully homed or moved towards their home range within 1-3 days.
• Homing turtles exhibited more direct paths and shorter delays compared to simulated or undisplaced individuals.
• Water conduits acted as significant eco-hydrological barriers, impeding turtle movement.

Conclusions:

• The Balkan pond turtle demonstrates significant navigation capabilities.
• This species can serve as a valuable model for studying navigation and for conservation biology.
• Balkan pond turtles can be used as indicators of wetland connectivity.