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"Many any wildlife species are dependent upon riparian areas for their entire life cycle, with requirements <br /> for feeding, breeding, refuge, cover, rnovemement, migration and climate that are intricately interwoven <br /> into the ecological balance o f n'panan structure,-functions and processes." , rnn n and Cul crwlI <br /> P.4)* <br /> "Maintaining the natural vegetation on coastal banks is vitally important to the stability p of the slope and <br /> ultimately, to the intergr*ty of adjacent ecotones and water duality." '(,i...water that is not interc ap ted b <br /> tree canopy, understory, or shrubs will infiltrate into the ground, or run off the surface. This can lead t <br /> significant surfrzal erosion of soils that result in lost topsoil, siltation, burial of aquatic environs and the <br /> introduction of eontaranrnants into waterways. (Brennan and Cul er well, p-3)* <br /> "...for all shoreline, and particularly for those in areas with steep and eroding bluffs, native vegetation <br /> is usually the best tool for beeping the bluff intact and for millimizing erosion..-. T loss or removal of <br /> slope vegetation can result in increased rates oferosion and higher frequencies of slope failure.... <br /> Disturbing the face or toe of a bluff or bank may cause destabilization, slides and cave-iris"....Remo al <br /> the vegetation that helps to stabilize the face, or excavating along the face, increases the chance o <br /> slumping, which results in imperiled structures, lost land, a disruption to the ecological edge-zone and <br /> increased sedimentation to the aquatic environment. (Brennan and dulverwell, pp- 3 & * <br /> *from: Brennan, J.S., and H. Culverwell. 2004 Marine Riparian: An Assessment of Riparian Functions <br /> in Marine Ecosystems. Published by Washington Sea Grant Program Copyright 2005, UW <br /> Board of Regents, Seattle, WA 34 l?. <br /> Because 'of their role in the supply of sediments to beaches, Coastal Banks are considered ixn octant to <br /> the protection of shellfishernes, aquaculture and fisheries. Also, because of this', acrd the role that <br /> vegetated portions of Coastal Banks have as wildlife habitat, they are important to recreation. <br /> C. PERFORMANCE STANDARDS: The physical characteristics and location of coastal banks are <br /> critical to the protection of the wetland values specified in section 172-1 of the Mashpee wetlands <br /> Protection Bylaw. <br /> Activities, which will result in the building within or upon, removing, filling and/or altering as defined <br /> in section 172-9 of the Mashpee wetlands Protection Bylaw) of a Coastal Bink or within 50 feet of said <br /> Bank, may be permitted if necessary for access to beach/water, including visual access if the activity <br /> will not-induce cumulative impairment of said Critical C ra to sti s. The foilowing projects <br /> (activities) may qualify: <br /> - the maintenance' of an already existing and lawful structure <br /> - the construction of an elevated walkway for access to a water body at the lover boundary of <br /> said bank or to a lawful dock on said waterbody . Such walkway shall have no adverse <br /> effects other than blocking sunlight from the underlying vegetation for.a portion of each clay. <br /> Such structure shall be constructed in such a way that its surface area and design shall allow <br /> the maximum possible amount of sunlight to penetrate and read the underlying vegetation. <br /> vista pruning, subject to a Notice of Intent and issuance of an order of Conditions <br /> -3 - <br />