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Tag Archive | "Frog and Toad Survey"

Lend your ear to DNR’s annual frog and toad survey



The wood frog, pictured here, is just one of 13 frog and toad species you might find in Michigan. The Department of Natural Resources is welcoming volunteers to help with its annual spring frog and toad survey, an important data-collection effort that helps wildlife biologists better understand current populations and abundance in different parts of the state. Photo by Michigan DNR.

If you love the sound of deep croaks and rhythmic ribbits, consider helping the DNR with its annual frog and toad survey. Now in its 25th year, Michigan’s survey is the second-longest-running such survey in the nation, after Wisconsin, and relies on volunteers’ keen ears and observations to provide a clearer picture of species abundance and location.

Caitlin Boon, the DNR’s acting Wildlife Action Plan coordinator, said that declining populations of frogs, toads and other amphibians have been well-documented worldwide since the 1980s. Studies suggest that trend is due to habitat loss, pollution, disease and collection.

“This survey work is key to department efforts to understand and manage amphibian populations, and that work couldn’t be completed without the people who volunteer each year,” Boon said. “It’s really a cool opportunity to get out in nature, along back roads and into the fields and forests, and do something a little different and fun that makes a difference for Michigan’s natural resources.”

Volunteer observers cover a statewide system of permanent survey routes, each consisting of 10 wetland sites. Sites are visited three times during spring, when frogs and toads are actively breeding. Observers listen for calling frogs and toads, identify which of Michigan’s 13 species they hear, and then estimate how many frogs and toads are present.

The survey’s continued success depends on strong volunteer support, and help is needed all over the state. Interested volunteers should contact the Wildlife Division at 517-284-9453 or DNR-FrogSurvey@Michigan.gov.

For more information on the frog and toad survey and other projects supported by the Nongame Fish and Wildlife Fund, visit Michigan.gov/Wildlife.

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Volunteers needed for frog and toad survey


Fowler’s toad is one of the species in decline in Michigan.

Fowler’s toad is one of the species in decline in Michigan.

The Michigan Department of Natural Resources is seeking volunteers throughout the state to assist with its annual frog and toad survey.
Declining populations of frogs, toads and other amphibians have been documented worldwide since the 1980s. Studies suggest amphibians are disappearing due to habitat loss, pollution, disease and collection.

Michigan’s annual survey efforts help biologists monitor frog and toad abundance and distribution in the state.

“Fowler’s toads and mink frogs have a limited range in Michigan, unlike most other species that occur statewide,” said Lori Sargent, the DNR’s frog and toad survey coordinator. “Over the past 20 years, through analyzing the survey data collected, we’ve noticed a decline in these two species in Michigan.”

The surveys are conducted by volunteer observers along a statewide system of permanent survey routes, each consisting of 10 wetland sites. These sites are visited three times during spring, when frogs and toads are actively breeding. Observers listen for calling frogs and toads at each site, identify the species present, and make an estimate of abundance.

Sargent said new volunteers are needed in all parts of the state, and the continued success of the survey is dependent on strong volunteer support. Those interested in volunteering should contact Lori Sargent at 517-284-6216 or SargentL@michigan.gov.

Michigan has the second-longest-running such survey in the country, after Wisconsin.

More information on the frog and toad survey and other projects supported by the Nongame Fish and Wildlife Fund is available at mi.gov/wildlife

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DNR’s annual frog survey marks 20th year


OUT-Frog-survey

The Department of Natural Resources announced this week that its 20th annual statewide Frog and Toad Survey would begin this spring. Michigan’s survey is second only to Wisconsin’s in longevity.

The DNR Wildlife Division coordinates and analyzes data for the survey, while volunteers throughout the state conduct the field work for the survey. These annual survey efforts help biologists monitor frog and toad abundance and distribution in the state.

“We have collected a large, valuable data set to help us evaluate Michigan’s frog and toad populations,” said Lori Sargent, the DNR’s survey coordinator. “We’re now able to start watching trends and thinking about how to slow down some of the species’ declines.”

For example, Sargent pointed out that over the past 19 years Michigan has seen a decline in Fowler’s toads and mink frogs, two species that have a limited range in the state, unlike most of the other species that occur statewide.

Declining populations of frogs, toads and other amphibians have been documented worldwide since the 1980s. Studies suggest amphibians are disappearing due to habitat loss, pollution, disease and collection.

Volunteer observers conduct the surveys along a statewide system of permanent survey routes, each consisting of 10 wetland sites. Observers visit these sites three times during spring, when frogs and toads are actively breeding, listening for calling frogs and toads at each site, identifying the species present and making an estimate of abundance.

“We could still use some new volunteers in all parts of the state,” Sargent said. “Please consider joining us for a fun, educational time every spring and adopt a route. The continued success of the program is dependent on strong volunteer support.”

Those interested in volunteering should contact Lori Sargent at SargentL@michigan.gov or 517-284-6216 and provide their name and address.

More information on the Frog and Toad Survey and other projects supported by the Nongame Wildlife Fund is available at www.michigan.gov/wildlife.

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