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Published byAlec Wilde Modified over 9 years ago
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Bird-Friendly BMP’s for Bottomland Forest in the Carolinas Birds and People on Common Ground
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Typical Hardwood Management Historically we’ve left as is… or done large harvests followed by natural regeneration
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Small Patch Clearcut 2-10 acres with <10% of entire bottomland in regenerative state Feathered edges necessary if thinning does not accompany clearing
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“String of Pearls”
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Spokes of a Wheel
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Example – Silver Bluff Audubon Center 90 acre stand Homogenous stand condition 25 year old stand Mature forest function – 95% canopy closure Prescription Regenerate 10% of stand using patch cut(s) 15 year entry cycle 135 year rotation
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Feathered edge of a small patch opening
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Brown-headed Cowbird All things equal Thickets as far interior as possible Prolific! One female can Lay as many as 40 eggs a season In other birds nests! Nest parasites that grow larger And compete for adoptamom’s resources
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Thicket example 1
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Thicket example 2
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Hardwood thinning Ideally we want to thin down to 60-70% canopy closure Tree selection can be done to leave better species composition for economics or mast production
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95% Canopy Closure
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60% Canopy Closure
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Epicormic Branching Is a problem that can occur when too much sunlight is allowed into a stand. While epicormic branching can hinder log quality, we feel that a conservative thinning will close canopy quickly enough to avoid this concern.
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So how do we decide where? Often times it is best to mimic mother nature! Consider invasive species
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Tornado Damage
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Hurricane Damage
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Ideal Silver Bluff Location Since we get to choose where we put our thickets, we can pick places that naturally grow the types of understory we want!
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Ideal Four Holes Swamp Location Ironwood, Sweet Gum, Palmetto, Loblolly Pine, Water and Swamp Chestnut Oaks, Green Ash, American Elm, Hawthorne, Switch Cane, and Persimmon Higher… less flooded areas
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“Flippable” Ground Litter
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Hooded Warbler Bird survey
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Swainson’s Warbler 1989 post tornado this species was Prevalent on the S.B. Island and has since Moved on due to lack of habitat
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National Audubon is telling me to cut TREES??? And hunt DEER??? Brandon Heitkamp Resource Manager Silver Bluff Audubon Sanctuary 803-522-2299 Norman Brunswig Executive Director Audubon South Carolina 843-462-2150
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