Ecology of Red Maple Swamps in the Glaciated Northeast: A ...
Ecology of Red Maple Swamps in the Glaciated Northeast: A ...
Ecology of Red Maple Swamps in the Glaciated Northeast: A ...
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difficuit to del<strong>in</strong>eate <strong>in</strong> many <strong>in</strong>stances if only<br />
vegetative criteria are used, The shift <strong>in</strong> relative<br />
abundance between red maple (PAC) eu~d white<br />
oak SI;"ACU) trees most closely approximahd <strong>the</strong><br />
change from hydric to nonnhydric soil$,<br />
Obligaw wetiand (OBL) trees atte rare <strong>in</strong> <strong>the</strong><br />
glaciated Nor<strong>the</strong>ast; AtlanLir white cedm is <strong>the</strong><br />
ody relatively cornton ~pec(F?Cie~ SO ~Ia~sified ('&xzd<br />
1988). In <strong>the</strong> Ktlode fslalld study, <strong>the</strong> few cedars<br />
prcssent were restricted b very ywx>rIy dra<strong>in</strong>ed<br />
The greet majority <strong>of</strong> plant spies that occur i ~r mils. Except for scarlet oak (@erm~ carcirzca),<br />
11art;1xeae@tll. red maple swamps csxn grow uttder a<br />
wide range <strong>of</strong> 4 1 rnoi~ture c~mdltions; that is, nlmt<br />
which is an obligak uylmrd (U12L) smies, <strong>the</strong><br />
rema<strong>in</strong><strong>in</strong>g trees were <strong>in</strong> onci <strong>of</strong> <strong>the</strong> facultative<br />
species we FACW, FAC, or WCrJ. This is not sur- categories. The most cornrnon <strong>of</strong> <strong>the</strong>m-Acpr rupri'1~i~1g<br />
<strong>in</strong> light <strong>of</strong> Lire aeasonsl and annual waterlevel<br />
fluctuation <strong>in</strong> <strong>the</strong>se wetlmds. Table 4.4 shows<br />
brurn, ghrercus alba, and Nyssn syllvcrticcr-wcurred<br />
<strong>in</strong> every soil dra<strong>in</strong>age class.<br />
tire di~kib~ztioz~, by soil dra<strong>in</strong>age ccletss, <strong>of</strong> <strong>the</strong> nlajor Obligab wet,laxzd ahrubs RIBO me rare <strong>in</strong> northtree,<br />
shrub, md herb Iayor specie8 earnunbred <strong>in</strong> eastern red maple swaps. Of <strong>the</strong> four OBl, ape<strong>the</strong><br />
Rhde Ialmd rnaiatrwe gradient atudy, doz~<br />
ciea recorded ~II. <strong>the</strong> Khde Idand ~ptudy---awanlp<br />
with <strong>the</strong> wntSmci <strong>in</strong>dicator status <strong>of</strong> each. rose, pis011 aurnac, bnmkside aldor (A<strong>in</strong>us serm-<br />
Table 1.4. Frequmqy <strong>of</strong>rxntrn~mc (W <strong>of</strong> rn rrjr,r f re@, shnlb, and herb lqcr s~~cics by mil dm<strong>in</strong>cgc chss<br />
irz titc iuetlctrulj upltrrrd tmnsitior-t zone r,ftlircc lilxxle 11sk;lrrcl RT*! mop& strtrrmps (shrub crnd herb dntcr<br />
fnrna Davis 19881.<br />
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