Gold dots and blue squares indicate where native frogs are presumed extinct. View image Migratory Bird Population Changes in North Dakota Go to the article Figure. Distribution of the original 130 quarter-sections in North Dakota. View image Native Ranid Frogs in California Go to the article Fig. Historical and current distribution of the foothill yellow-legged frog, spotted frog, and Yavapai leopard frog in California based on 3,316 museum records and 171 records from other sources.
Dots indicate locality records based on verified museum specimens.
Red dots and green squares denote localities where native frogs are extant. Gold dots and blue squares indicate where native frogs are presumed extinct. View image Ecosystem Trends in the Colorado Rockies Go to the article Fig. 2. Trends in Rocky Mountain National Park visitors, agricultural impacts, moose invasion, elk population, forest recovery, air pollution, Estes Park population, and global change in carbon dioxide. View image Native Ranid Frogs in California Go to the article Fig.