strengthening our community tree canopy through education module #11:
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Strengthening our Community Tree Canopy Through Education Module #11: Mangrove and Sea Grape Pruning Laura Sanagorski, Environmental Horticulture Extension Faculty Bill DuMond, Palm Beach County Extension Service Program Assistant. Strengthening Our Community Tree Canopy - PowerPoint PPT PresentationTRANSCRIPT
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Strengthening our Community Tree Canopy Through Education
Module #11: Mangrove and Sea Grape Pruning
Laura Sanagorski, Environmental Horticulture Extension FacultyBill DuMond, Palm Beach County Extension Service Program Assistant
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Strengthening Our Community Tree Canopy
2012 Urban Forestry Series
This series is a part of a project titled “Strengthening Our Community Tree
Canopy Through Education”. This project is made possible by a grant
through the 2011 National Urban and Community Forestry Grant Program
and the Florida Department of Agriculture and Consumer Services,
and the Florida Forest Service.
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Mangrove Pruning
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Mangrove and Sea Grape PruningWhy so Important?
Mangroves serve as a habitat for various species of wildlife
Photo: Palm Beach County Environmental Resource Management
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Mangrove and Sea Grape PruningWhy so Important?
Mangroves stabilize shorelines and provide protection from storms
Photo: Palm Beach County Environmental Resource Management
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Mangrove and Sea Grape PruningWhy so Important?
Mangroves protect water quality
Photo: Florida Department of Environmental Protection
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Mangrove and Sea Grape PruningWhy so Important?
Mangroves serve as a food web support for fish
Illustration: ProtectFlReefs
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Mangrove and Sea Grape PruningWhy so Important?
Because it’s the law!!1996 Mangrove Preservation and Trimming Act
Photo: University of Georgia, Bugwood.org
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Red Mangrove
Photo: Florida Department of Environmental Protection
Photo: Florida Department of Environmental Protection
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Red Mangrove• Named for color inside bark of the tree• Usually found in tidal areas• Seeds are pencil-shaped “propagules” growing to ten
inches long• Known for their “prop” roots• Very sensitive to trimming, especially topping
Photo: Florida Department of Environmental Protection
Photo: Palm Beach County Environmental Resource
Management
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Black Mangrove
Photo: Palm Beach County Environmental Resource Management
Photo: Florida Department of Environmental Protection
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Black Mangrove
• Named for the dark bark of the tree• Leaves are often encrusted in salt• Conditioned for saline and basin-like areas• Seeds are smaller than red mangrove• Known for upward growing “pencil” roots• Sensitive to trimming
Photo: Palm Beach County Environmental Resource Mgmt.
Photo: Palm Beach County Environmental Resource Management
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White Mangrove
Photo: Florida Department of Environmental Protection
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White Mangrove
• Named for the whitish color of the bark• Leaves have sugar secreting glands at
the base• No aerial root system like the other • mangroves• Generally located in higher elevations• Tolerates trimming better than the other
mangroves
Photo: Palm Beach County Environmental Resource
Management
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Mangrove Forest
Illustration: UF / IFAS
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1996 Mangrove Preservation andTrimming Act
• Protect and preserve mangrove resources
• No trimming or alteration on uninhabited islands or conservation and mitigation areas
• Provide owners right of view• Encourage owners to maintain
mangroves
Intent
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1996 Mangrove Preservation andTrimming Act Jupiter couple face $1.6 million
penalty for removing protected
plantsJupiter councilman suggests
pursuing criminal charges
against mangrove cutters
Illegal m
angrove
cutti
ng on
Ft. M
yers
beach
Photo: Palm Beach Post
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Mangrove Trimming
Exemptions
Individual Permit
General permit
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1996 Mangrove Preservation andTrimming Act
Riparian Mangrove Fringe (RMF) – Areas where mangroves along the shoreline </= 50 feet
Exemptions
Illustration: Bill DuMond – PBC Cooperative Ext.
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1996 Mangrove Preservation andTrimming Act
• Mangroves may be trimmed when </= 10 feet
• Mangrove trimmed to overall height >/= 6 feet
• Property shoreline </= 150 feet - 65% may be trimmed
• Mangroves < 10 feet being maintained or reestablished via trimming
Exemptions
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1996 Mangrove Preservation andTrimming Act
• Mangroves may be trimmed when </= 24 feet
• Trees > 16 feet trimmed in stages </= 25% of foliage removed annually
• Mangroves 10-24 feet being maintained or reestablished via trimming
• Trimming of red mangroves for 1st time by Professional Mangrove Trimmer (PMT) must notify authorities
Exemptions
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1996 Mangrove Preservation andTrimming Act
• Trimming done in area where Department of Environmental Protection (DEP) hasn’t delegated authority
• Trimming conducted or supervised by PMT
• Mangroves extend </= 500 feet• </= 65% of mangroves > 6 feet trimmed• Trimming of mangroves to provide
clearance for watercraft navigation• No herbicides or chemicals used
General Permit is required:
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1996 Mangrove Preservation andTrimming Act
• Permit used once to trim to achieve height >/= 6 feet
• Trimming done in stages so </= 25% of foliage removed annually
• $250.00 permit fee
General Permit
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1996 Mangrove Preservation andTrimming Act
• Trimming or alterations not under an exemption or a General Permit
• Trimming > 500 feet from the shoreline
• Where mitigation may be required• Permit fee required:
1-19 trees - $420.0020 + trees - $830.00
Individual Permit is required:
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Professional Mangrove Trimmers
Photo: Florida Department of Environmental Protection
Photo: Florida Department of Environmental Protection
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Professional Mangrove Trimmers
• International Society of Arboriculture Certified Arborists
• Certified Wetland Scientists• Environmental Professionals • Landscape Architects • Professional Mangrove Trimmer
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Sea Grape Pruning
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Mangrove and Sea Grape PruningWhy so Important?
Sea grapes serve as a habitat for birds, lizards, gopher tortoise, butterflies, and other wildlife
Photo: USDI National Park Service, Bugwood.org
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Mangrove and Sea Grape PruningWhy so Important?
Sea grapes serve as a food source for native birds, mammals, and other wildlife
Photo: Starr Environmental, Bugwood.org
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Mangrove and Sea Grape PruningWhy so Important?
Sea grapes serve as a stabilizer for beaches and dunes
Photo: USDI National Park Service, Bugwood.org
Photo: University of Georgia, Bugwood.org
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Mangrove and Sea Grape PruningWhy so Important?
Sea grapes protect oceanfront property from erosion, sand, and salt spray
Photo: Starr Environmental, Bugwood.org
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Mangrove and Sea Grape PruningWhy so Important?
Sea grapes serve as a protector to nesting sea turtles
Photo: University of Georgia, Bugwood.org
Photo: University of Georgia, Bugwood.org
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Mangrove and Sea Grape PruningWhy so Important?
Sea grapes serve as a barrier to artificial lighting
Photo: Florida Department of Environmental Protection
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Mangrove and Sea Grape PruningWhy so Important?
Sea grapes serve as a barrier to artificial lighting
Photo: Florida Department of Environmental Protection
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Mangrove and Sea Grape PruningWhy so Important?
Sea grapes serve as a barrier to artificial lighting
Photo: Florida Department of Environmental Protection
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Mangrove and Sea Grape PruningWhy so Important?
Because it’s the law!!- Florida Statutes – 161.053(2)(a)- Florida Department of Environmental Protection- Federal Endangered Species Act 1973- Florida Statutes Chapter 370.12 – Marine Turtle Protection Act
Photo: Northeastern University, Bugwood.org
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Mangrove and Sea Grape PruningWhy so Important?
Department of Environmental Protection Sea Grape Pruning Guidelines• Do not trim more than 1/3 of height• Do not trim more than 1/3 of leaf area
annually• Do not reduce height less than 6 feet• All sea grape seaward of the CCCL subject to
permitting• Shrub trimming > 42 inches requires permit• Tree trimming < 6 feet requires permit
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Strengthening our Community Tree Canopy Through Education
Module #11: Mangrove and Sea Grape Pruning
Laura Sanagorski, Environmental Horticulture Extension FacultyBill DuMond, Palm Beach County Extension Service Program Assistant