Endangered Species Program
Midwest Region
empty

Home

Species Information

Listed Species in the Upper Midwest

Listed Species' Ranges by State and County

Candidate Species

Species of Concern

Featured Species

Bald Eagle

Canada Lynx

Freshwater Mussels

Gray Wolf

Indiana Bat

Karner Blue Butterfly

Kirtland's Warbler

Piping Plover

Whooping Crane

Endangered Species Act

FAQs

Glossary

Grants

HCPs

Listing

Permits

Recovery

Status
Assessments

S7 Consultation

Contacts

ES Field Offices

empty

Lake Erie Water Snake:

Adult Population 2001 - 2007

PDF version

 

From the Lake Erie Watersnake Annual Report by Dr. R.B. King (March 3, 2008)

 

Table 4. Total estimated U.S. adult Lake Erie watersnake population size, 2001 – 2007. Estimates that exceed island-specific and overall population size goals specified in the Lake Erie watersnake recovery plan (U.S. Fish and Wildlife Service 2003) are shown in red.

Year Kelleys South
Bass
Middle
Bass
North
Bass
Small
Islands
All
U.S.
Islands
2001 1920 1510 1020 170 830 5450
2002 2130 1450 1300 610 830 6320
2003 2600 1500 2020 270 830 7220
2004 2870 1630 1690 440 1270 7900
2005 2210 1620 2630 630 940 8030
2006 2650 2830 4170 1240 1430 12320
2007 2520 3450 3970 930 940 11810
Recovery
goal
900 850 600 410   5555

 

Back

 

 
Last updated: May 6, 2008