The Spotted Frog Census: Log Cabin area near the Skagway summit represents the northern extent of the Spotted Frogs' range. Our class assist Lee Manell,, a local naturalist , in three spring census activities in the region. Students are provided a seminar on spotted frog mating processes, the habitat they prefer and the care to be taken in the census process.
Student groups are given groups of small lakes in the summit area to survey. They first find the lake following a compass bearing, then walk around the lake looking for egg masses or breeding groups. Spotted frogs breed in the flooded grassy margins of these high elevation ponds. The location of the egg mass is plotted on the particular lake, egg development stage is noted, the number of egg clusters and the specifics of the pond margins they use for breeding. Measures are taken of the pond depth and the depth of the escape channels are measured.
Students have sketched the back pattern of captured frogs held in a special tray that reduces trauma for the frog. This sketch system or photographs identifies individuals and may help in identifying information about specific breeding and development.
Student groups are given groups of small lakes in the summit area to survey. They first find the lake following a compass bearing, then walk around the lake looking for egg masses or breeding groups. Spotted frogs breed in the flooded grassy margins of these high elevation ponds. The location of the egg mass is plotted on the particular lake, egg development stage is noted, the number of egg clusters and the specifics of the pond margins they use for breeding. Measures are taken of the pond depth and the depth of the escape channels are measured.
Students have sketched the back pattern of captured frogs held in a special tray that reduces trauma for the frog. This sketch system or photographs identifies individuals and may help in identifying information about specific breeding and development.