Upper Midwest Environmental Sciences Center
Stratum All Strata Main channel border Side channel Backwater contiguous Impounded Backwater isolated Lake Pepin
Life form: Choose Life form All Life forms Submergent Species March 30, 2006 Emergent Species Year Range Choose Year 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 to Choose Year 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
Species richness is a measure of the diversity within each study area. The total number of species observed each year is plotted as a time series for each study area.