Print Report

CEGL002508 Non-alkaline Cobble - Gravel Great Lakes Shore Sparse Vegetation

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Non-alkaline Cobble - Gravel Great Lakes Shore Sparse Vegetation

Colloquial Name: Great Lakes Sandstone Cobble - Gravel Shore

Hierarchy Level:  Association

Type Concept: This non-alkaline cobble - gravel Great Lakes shore type is found along the shores of northern Great Lakes in the United States and Canada. Substrates currently identified include a combination of siltstones, shales, and sandstones. Sites identified in Michigan are almost completely covered by a gravel and cobble beach and support no vegetation. The exposures are subject to too much wave action to support a distinctive plant community. Rangewide description is still needed.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: This type may need to be separated into granite/metamorphic cobble/gravel shores and sandstone cobble/gravel shores, if such shores exist. But given the almost complete lack of vegetation on the cobble and gravel, no further subdivision may be warranted. The Michigan report (Albert et al. 1995) does not indicate a granite/metamorphic type and the sandstone type is of very limited extent on the Keweenaw Peninsula and within the Porcupine Mountains State Park. Rangewide review is still needed. In Minnesota, review is needed to determine if there are any granitic cobble shores (not basalt, which is tracked as ~Basalt - Diabase Cobble - Gravel Great Lakes Shore Sparse Vegetation (CEGL005250)$$).

Similar NVC Types: No Data Available
note: No Data Available

Physiognomy and Structure: No Data Available

Floristics: Sites identified in Michigan are almost completely covered by a gravel and cobble beach and support no vegetation. Rangewide description is still needed (Albert et al. 1995).

Dynamics:  These rock exposures are subject to much wave action that prevents the development of a distinctive plant community (Albert et al. 1995).

Environmental Description:  Substrates currently identified include a combination of siltstones, shales, and sandstones (Albert et al. 1995).

Geographic Range: This non-alkaline cobble/gravel Great Lakes shore type is found along the shores of northern Great Lakes in the United States and Canada, ranging from Michigan and Wisconsin, north to Ontario.

Nations: CA,US

States/Provinces:  MI, ON, WI




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: G2G3

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Non-alkaline Cobble - Gravel Great Lakes Shore Sparse Vegetation (Faber-Langendoen 2001) [Great Lakes Cobble Beach Non-Alkaline Subtype]

Concept Author(s): D. Faber-Langendoen (2001)

Author of Description: D. Faber-Langendoen

Acknowledgements: No Data Available

Version Date: 06-12-12

  • Albert, D. A., P. J. Comer, R. A. Corner, D. Cuthrell, M. Penskar, and M. Rabe. 1995. Bedrock shoreline survey of the Niagaran Escarpment in Michigan''s Upper Peninsula: Mackinac County to Delta County. Michigan Natural Features Inventory for Land and Water Management Division (grant # CD-0.02).
  • Faber-Langendoen, D., editor. 2001. Plant communities of the Midwest: Classification in an ecological context. Association for Biodiversity Information, Arlington, VA. 61 pp. plus appendix (705 pp.).
  • Kost, M. A., D. A. Albert, J. G. Cohen, B. S. Slaughter, R. K. Schillo, C. R. Weber, and K. A. Chapman. 2007. Natural communities of Michigan: Classification and description. Report No. 2007-21, Michigan Natural Features Inventory, Lansing. 314 pp. [http://web4.msue.msu.edu/mnfi/reports/2007-21_Natural_Communites_of_Michigan_Classification_and_Description.pdf]
  • MNNHP [Minnesota Natural Heritage Program]. 1993. Minnesota''s native vegetation: A key to natural communities. Version 1.5. Minnesota Department of Natural Resources, Natural Heritage Program, St. Paul, MN. 110 pp.
  • Midwestern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Minneapolis, MN.
  • WDNR [Wisconsin Department of Natural Resources]. 2015. The ecological landscapes of Wisconsin: An assessment of ecological resources and a guide to planning sustainable management. PUB-SS-1131 2015. Wisconsin Department of Natural Resources, Madison. [http://dnr.wi.gov/topic/landscapes/Book.html]