Monday, June 17, 2013

In frogs’ croaks, volunteer hears environment’s pulse

Half an hour past sunset in rural western Hennepin County, Madeleine Linck strains her ears. She’s listening, believe it or not, for the sounds of courtship. Frog courtship, that is.

Linck is helping with a state Department of Natural Resources survey gauging the presence of the state’s 14 frog and toad species. She’s listening for the male mating call.

... The survey started 19 years ago due to concerns worldwide that amphibian populations were in decline due to habitat destruction, disease and other factors. Results show the state’s frog and toad population is relatively stable with the exception of grey tree frogs and spring peepers, where the number of calls heard is down.

InForum News
14 Jun 2013
D Olson

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