Aquatic Invasions (2021) Volume 16, Issue 3: 542–570 CORRECTED PROOF Research Article Non-native pond sliders cause long-term decline of native Sonora mud turtles: a 33-year before-after study in an undisturbed natural environment Charles A. Drost1,*, Jeffrey E. Lovich1, Philip C. Rosen2, Matthew Malone3 and Steven D. Garber4 1U.S. Geological Survey, Southwest Biological Science Center, 2255 N. Gemini Drive, Flagstaff, AZ 86001, USA 2School of Natural Resources and the Environment, University of Arizona, Tucson, AZ 85721, USA 3UCCB International Consultancy, Amalienstrasse 16, D-96047 Bamberg, Germany 4Department of Homeland Security, Federal Emergency Management Agency, 329 Vine Road, Stamford, CT 06905, USA Author e-mails:
[email protected] (CAD),
[email protected] (JEL),
[email protected] (PCR),
[email protected] (MM),
[email protected] (SDG) *Corresponding author Citation: Drost CA, Lovich JE, Rosen PC, Malone M, Garber SD (2021) Non-native Abstract pond sliders cause long-term decline of native Sonora mud turtles: a 33-year Using a before-after study design in a stable, largely undisturbed pond habitat and a before-after study in an undisturbed natural dataset spanning 33 years, we document and describe the decline of native Sonora environment. Aquatic Invasions 16(3): mud turtles (Kinosternon sonoriense) after the introduction of non-native pond sliders 542–570, https://doi.org/10.3391/ai.2021.16.3.10 (Trachemys scripta). The Sonora mud turtle population in Montezuma Well in central Received: 12 May 2020 Arizona, USA, declined to less than 25% of previous numbers, from 372 ± 64 in Accepted: 11 January 2021 1983 to 80 ± 21 in 2011.