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Appendix 6.Lower New England\Northern PiedmontFinal LNE-NP Aquatic Macrohabitat ClassificationStreamsStream macrohabitats will be defined based upon the concatenation of values for the followingfive variables:Size1 - headwater (link 1-5)2 - creek (link 6-30)3 - small river (link 31-450)4 - large river (link >450)Hydrologic regime1 – unstable (elaborate rules based on watershed geology and stream size)2 – stable (elaborate rules based on watershed geology and stream size)Chemistry1 – calcareous/neutral (elaborate rules based on watershed geology and stream size)2 – acidic (elaborate rules based on watershed geology and stream size)Downstream connectivity1 – headwater/creek (link 1 – 30)2 – small river (link 31 – 450)3 – large river (link 451 and greater)4 – lake/wetland5 – coastalGradient1 –
Appendix 6.Lower New England\Northern PiedmontFinal LNE-NP Aquatic Macrohabitat Classification2 – acidicSize1 – 1 - 10 ha2 – 11 – 100 ha3 – 101 – 1000 ha4 - >1000 haShoreline complexityFour classes, (round , elongate, complex, very complex), based upon Shoreline Complexity Index,will be used. Class intervals will be the same as used in Great Lakes Pilot Project.Shoreline Complexity Index =Perimeter2 Π∗ Area1 – round = .97-1.022 – elongate = 1.03 – 2.033 – complex = 2.04 – 4.004 – very complex = >4.00Network positionHydrologic regime inferred from GIS flow accumulation model (low, moderate and high) andconnectivity (unconnected, outlet only, inlets and outlets). Ranges for flow accumulationcategories will be assigned after flow accumulation analysis has been completed and the statisticaldistribution of data examined. Nine combinations are possible as follows:Flow AccumulationConnectivity1. a. Low Unconnectedb. Low Outlet Onlyc. Low Inlet and Outlet2. a. Moderate Unconnectedb. Moderate Outlet Onlyc. Moderate Inlet and Outlet3. a. High Unconnectedb. High Outlet Onlyc. High Inlet and OutletElevationThis variable may be useful... we can do this pretty easily, so let’s just get an absolute number anduse later if necessary.9/20/00 CONFIDENTIAL DRAFT 2
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Lower New England - Northern Piedmo
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TABLE OF CONTENTSCOVERINTRODUCTIONA
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IntroductionEcoregional Planning in
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AcknowledgementsEdited Version and
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combinations based on surficial geo
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Priorities and Leadership Assignmen
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Portfolio SummaryA total of 1,028 s
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each local population with respect
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potential target list for future co
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iteration ecoregional plans, specie
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RESULTS FOR SPECIES *Modification t
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documented in BCD making analysis v
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PLANNING METHODS FOR ECOREGIONAL TA
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sandy outwash and forested swamps a
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and distribution pattern for each e
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disproportionately large percentage
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to that ecoregion alone. Those syst
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Locating examples of patch-forming
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systems. Conversely, high elevation
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The minimum goals based on generic
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Results for Terrestrial Communities
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Table 6. Minimum conservation bench
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• The National Vegetation Classif
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of ecoregions, from the Northern Ap
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How much larger than the severe dam
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Scaling factors for Matrix Forest S
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Roads are also source areas for noi
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ungulates. We simply discussed thes
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conservation plan must be done to r
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position, its geology and its eleva
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this block, miles of streams, dams
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Connecting Area or Ecological Backd
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MATRIX SITE:NAME:STATE/S:SIZE:Total
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Block developmentTwo sets of ecoblo
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Table 12. A description of the elev
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There are 27 ELU types entirely mis
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Freshwater Ecoregions and Ecologica
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classes: size 1) headwaters to smal
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Figure 2: Watershed Aquatic System
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targets should also include conside
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have also not been extensively rese
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Table 5: Confidence Code1 High Conf
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TYPECHARACTERISTICSELU signatureSIZ
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Midreach streamentering large lakes
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Major stresses: Using the following
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Aquatic Systems Results for Lower N
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Figure 1: Ecological Drainage Unit
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IV. MiddleConnecticut3450 sq.mi.Riv
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Table 3: Fish and Mussel Distributi
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merrlowctcapeupctmidct3E-03100Nativ
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Figure 2: Size 2 Watershed SystemsR
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TWINSPAN RelationshipsThe hierarchi
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13 and 14 split from 15-17 primaril
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Table 5: Size 2 Watershed System Su
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Table 6: Size 3 Watershed System Su
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Figure 7: Reach Gradient ClassesREV
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Of these 480 possible combinations,
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Units supported the distinctiveness
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Condition ResultsGIS ScreeningSize
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Size 2 Watershed: Landscape Context
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Table 10: Size 2 Watershed Landscap
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Table 16: Dams on Size 2, 3,4 River
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Most of the dams in the analysis re
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shallow water fish spawning grounds
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Figure 11: Aquatic PortfolioREVISED
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Table 19: Size 3 Watershed System T
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Table 21: Portfolio Examples by EDU
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Range in Landscape Context Ranking
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Table 25: Upper Connecticut Portfol
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Table 27: Portfolio Size 2-4 Exampl
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2_24 S2c Assabet River 5.45 18.03 S
Page 143 and 144: For the medium to large sized river
Page 145 and 146: tributaries of the Assonet, Namaske
Page 147 and 148: Threats AssessmentThe Core Team mad
Page 149 and 150: • Work with TNC Eastern Conservat
Page 151 and 152: GlossaryThese selective glossary en
Page 153 and 154: Ecological Land Unit (ELU):Mapping
Page 155 and 156: Integration: A portfolio assembly p
Page 157 and 158: Representativeness: Captures multip
Page 159 and 160: Appendix 1Lower New England/Norther
Page 165 and 166: KEY TO TERMS OF FEDERALLY LISTED SP
Page 171 and 172: Appendix 1.Lower New England/Northe
Page 173 and 174: Appendix 1Lower New England\Norther
Page 187 and 188: Appendix 4.Lower New England\Northe
Page 193: Appendix 6.Lower New England\Northe
Page 197 and 198: DRAFT LNE-NP Ecoregional Plan 9\20\
Page 199 and 200: BibiliographyLower New England GIS
Page 201 and 202: BibiliographyD.P. (compilers), 1994
Page 203 and 204: Bailey, R.G., P.E. Avers, T. King,
Page 205 and 206: Gerritsen, J., M.T. Barbour, and K.
Page 207 and 208: Leopold, L.B. and Wolman, M.G. 1957
Page 209 and 210: Pulliam, H.R., 1988. Sources, sinks
Page 211 and 212: Steedman, R.J. 1988. Modification a
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