The
variety of wetland types in the CHBCR provide habitat for a diversity
of priority bird species,
including landbirds, wading birds, shorebirds and waterfowl.
Bottomland forests and emergent wetland habitats
in the Central Hardwoods are largely associated with the region’s
larger rivers (the Missouri, Mississippi, Ohio, Tennessee, Cumberland,
etc.) and their tributaries. All these rivers are impounded at
some point along their reaches, and many of the wetlands are submerged
under large reservoirs. In other areas wetlands have been drained
for agriculture. Remaining bottomland forests on smaller rivers
are rapidly being converted to pasture and campgrounds.
Bottomland forests are important to a variety
of high-priority landbirds, such as Cerulean and Prothonotary Warblers.
Naturally flooded bottomland forests also provide important habitat
for breeding Wood Ducks and other migrant and wintering waterfowl.
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American Black Duck
Photo courtesy of US Forest Service. |
Extensive cane thickets (Arundinaria
gigantea) associated with the CHBCR’s rivers and
larger streams were important habitat for the high priority Swainson’s
Warbler, but have been reduced in size or extirpated along most
of the river systems where they occurred historically. Restoration
efforts are underway in some areas, but there is potential to
do much more.
Mudflats and emergent wetlands in the Central
Hardwoods provide important habitat for shorebirds, waterfowl and
wading birds during spring and fall migrations. High priority waterfowl,
such as American Black Duck and the James Bay population of Canada
Goose, use emergent wetlands and associated open-uplands (e.g.
row crop and flooded agricultural lands) during winter as well.
Restoration and management of wetland habitats
has received the most attention where the CHBCR overlaps one of
two Joint Ventures formed under the auspices of the North
American Waterfowl Management Plan and in areas associated
with the lower Tennessee and Cumberland Rivers in Alabama, Kentucky
and Tennessee.
Wet meadows, a much more poorly understood and
inadequately mapped wetland type, may serve as important migration
habitat for some shorebirds, rails, and tall grass prairie sparrows
and are in great need of attention. |