Occurrences

County Name	Number of Occurrences	Year Last Observed
Jackson	1	1970
Washtenaw	1	1970

Updated 05/08/2013. Information is summarized from MNFI's database of rare species and community occurrences. Data may not reflect true distribution since much of the state has not been thoroughly surveyed.

Natural Community Types

• Floodplain forest
• Mesic southern forest
• Dry-mesic southern forest

Management

Land-use activities that remove forest canopy cover and alter critical habitat requirements such as microclimate and moisture availability should be avoided at occupied sites. These include activities such as timber harvesting, residential development, and road building. The species also is sensitive to excessive trampling and ORV use.

Active Period

Active from third week of March to fourth week of September

Survey Methods

Surveys can be conducted anytime during the growing season, but are most successful in the spring and fall following rain showers or when the soil is moist, and during higher relative humidity conditions and cooler temperatures. Visual surveys consist of looking for individuals crawling on the ground, in moist leaf litter, and on or under woody debris.

• Visual survey
  • Survey Period: From third week of March to fourth week of June
    • Humidity: Humid
      
  • Survey Period: From third week of August to fourth week of September
    • Humidity: Humid
      

Page Citation

References

Survey References

• Nekola, J.C. 1998. Terrestrial Gastropd Inventory of the Niagaran Escarpment and Keweenaw Volcanic Belt in Michigan's Upper Peninsula. Small Grants Program, 1998 Nongame Wildlife Fund, Natural Heritage Program, Michigan DNR, Lansing. 133pp.

• Schilthuizen, M. and H.A. Rutjes. 2001. Land snail diversity in a square kilometer of tropical rainforest in Sabah, Malaysian Borneo. Journal of Molluscan Studies 67:417-423.

Technical References

• Baker, F.C. 1939. Fieldbook of Illinois Land Snails. Illinois Natural History Survey Manual 2, Urbana, Illinois. 166pp.

• Burch, J.B. 1962. How to Know the Eastern Land Snails. William C. Brown Company Publishers, Dubuque. 214 pp.

• Hubricht, L. 1985. The Distributions of Native Land Mollusks of the Eastern US. Field Museum of Natural History. Fieldiana: Zoology, No. 24.

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