Freshwater degradation as a potential extinction factor of the Japanese river otters
Kanji Tomita, Tamihisa Ohta, Philip J. Manlick, Shingo Kobayashi, Chikage Yoshimizu, Ichiro Tayasu
This study investigates the extinction of Japanese river otters by analyzing their reliance on marine-derived resources through sulfur isotopes, linking habitat degradation to their decline.
bioRxiv · Oct 30, 2025 · PreprintEcology