Great River National Wildlife Refuge
Midwest Region

Who We Are

Fact Sheet
History
Volunteer
Contact Us

What We Do

Wetland and Aquatic Habitat Management
Forest Management
Grassland Management
Prescribed Fire
Cropland Management
Private Landowner Assistance

Public Use

Wildlife Obervation and Photography
Hunting
Fishing
Environmental Education and Interpretation

Wild Things

Birds
Fish and Mussels
Mammals
Reptiles and Amphibians
Invasive Species

Divisions

Fox Island
Long Island
Delair
Clarence Cannon NWR

Maps

Aerial Photographs
Land Cover
Location and Driving Directions

Mark Twain Complex

Port Louisa NWR
Great River/Clarence Cannon NWR
Two Rivers NWR
Middle Mississippi River NWR

Small Wetlands Program

Site Map

Links

Phone: 573-847-2333
V/TTY: 800-735-2966
Address:
P.O. Box 88
Annada, MO 63330

Forest habitats within the UMR floodplain are used by many wildlife species including migratory songbirds, waterfowl, hawks and eagles, deer, other mammals, reptiles and amphibians.

During the past 150 years, large forests have been divided into smaller and smaller patches as land has been cleared for agriculture and development. Wildlife species richness declines as the size of forest tracts is reduced. Many forest-dwelling songbird species rely on large blocks of habitat in order to nest successfully and their numbers have decreased due to forest fragmentation.

Photo of a forest - Photo credit:  U.S. Fish and Wildlife Service

The quality of the remaining forests has declined due to human-induced changes in flood frequency, duration, and depth. Many forests that once contained a wide variety of tree species and ages, now consist largely of mature silver maple with little natural regeneration.

Current management of floodplain forests at Great River has two main components:

  1. Reduce forest fragmentation by allowing selected refuge fields to naturally regenerate to trees. Initial species composition consists largely of willow, cottonwood, and silver maple.

  2. Manage forests for increased diversity by planting oak, pecan, hickory, and other native tree species on suitable sites.






 

Last updated: March 26, 2009