Plants and Animals

Lasmigona compressa Creek heelsplitter

Key Characteristics

Status and Rank

US Status:
State Status: SC - Special Concern (rare or uncertain; not legally protected)
Global Rank: G5 - Secure
State Rank: S3 - Vulnerable

Occurrences

CountyNumber of OccurrencesYear Last Observed
Allegan32000
Alpena1
Antrim11938
Barry12010
Benzie11949
Berrien31934
Branch11942
Calhoun32000
Cass21923
Cheboygan21914
Chippewa11938
Clare41949
Clinton42010
Crawford31939
Dickinson102009
Eaton31934
Emmet31945
Gladwin11926
Grand Traverse21949
Gratiot11934
Hillsdale51948
Ingham41937
Ionia51945
Iron52008
Isabella32015
Jackson72017
Kalamazoo1
Kalkaska11926
Kent102017
Lake1
Lapeer1
Lenawee52016
Livingston61965
Mackinac11941
Macomb32011
Manistee11949
Marquette1
Mecosta11934
Menominee52009
Midland22011
Monroe42017
Montcalm31934
Montmorency21945
Muskegon1
Newaygo41949
Oakland71965
Oceana11934
Ogemaw21946
Osceola11934
Oscoda12013
Otsego11938
Ottawa41934
Presque Isle21952
Saginaw22011
Sanilac42009
Shiawassee31934
St. Clair62016
St. Joseph11909
Tuscola11934
Van Buren41934
Washtenaw51978
Wayne42011

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.

Habitat

Natural Community Types

  • Unknown

For each species, lists of natural communities were derived from review of the nearly 6,500 element occurrences in the MNFI database, in addition to herbarium label data for some taxa. In most cases, at least one specimen record exists for each listed natural community. For certain taxa, especially poorly collected or extirpated species of prairie and savanna habitats, natural community lists were derived from inferences from collection sites and habitat preferences in immediately adjacent states (particularly Indiana and Illinois). Natural communities are not listed for those species documented only from altered or ruderal habitats in Michigan, especially for taxa that occur in a variety of habitats outside of the state.

Natural communities are not listed in order of frequency of occurrence, but are rather derived from the full set of natural communities, organized by Ecological Group. In many cases, the general habitat descriptions should provide greater clarity and direction to the surveyor. In future versions of the Rare Species Explorer, we hope to incorporate natural community fidelity ranks for each taxon.

Management Recommendations

Active Period

Survey Methods

References