Ecological Observations on the Ezo Brown Frog (Rana pirica Matsui, 1991) on Hokkaido Island, Japan
Sergius L. Kuzmin, Takanori Sato, Shigehiro Nakabayashi, Irina V. Maslova, Nobuyuki Narumi
Abstract
Observations on reproductive ecology in Rana pirica were conducted in several sites of Hokkaido Island, Japan. Data on adult sizes, phenology, migrations, habitat use, temperatures, and spatial distribution of clutches are discussed in comparison with those on taxonomically related continental species, Rana dybowskii from Russia.