Eastern Massasauga Rattlesnake

Species Introduction and Ecology

The Eastern Massasauga Rattlesnake (Sistrurus catenatus catenatus) is a small- to medium-sized pit viper that occurs in the Great Lakes Basin. It is one of two venomous snake species occurring in the region and the only venomous snake found in Michigan. Recently, the Eastern Massasauga Rattlesnake (EMR) was federally listed by […]

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Status and Protection

Effective as of October 31, 2016, the Eastern Massasauga Rattlesnake (EMR) is protected under the U.S. Fish and Wildlife Service list of Threatened Species covered by The Federal Endangered Species Act of 1973 (ESA).This act protects threatened and endangered species and their habitats by prohibiting […]

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Threats and Management

Habitat destruction, degradation, and fragmentation are among the most serious causes of EMR past and current EMR population declines. Development linked to urbanization and agricultural conversion eliminates not only critical EMR wetland habitats, but also the connectivity between those and […]

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