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 ...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
on Long Island, p<strong>in</strong> oak, swamp white a&, white<br />
oak (Quercus alba), and nor<strong>the</strong>rn red oak (Q.<br />
rubra) occur locally <strong>in</strong> red maple swaps. Less<br />
comrnon hardwood associates <strong>in</strong> <strong>the</strong> sou<strong>the</strong>rn section<br />
<strong>of</strong> zone I <strong>in</strong>clude serviceberry (Amektnchkr<br />
spp.), black cherry (Pmnus serottna), blue-beech<br />
(Calp<strong>in</strong>us cnrol<strong>in</strong>iam), yellow-popltur (Liridndron<br />
tulipifera), and basswood (Tilia americana).<br />
Atlantic white cedar is a common associate <strong>of</strong><br />
red maple <strong>in</strong> coastal areas from New Jersey to<br />
sou<strong>the</strong>rn Ma<strong>in</strong>e (Lademan 1989). This species<br />
typically occurs <strong>in</strong> pure stands on sites that are<br />
slightly wetter than most <strong>of</strong> those support<strong>in</strong>g red<br />
maple (Reynolds et al. 1982; Lowry 1984). However,<br />
cedar logg<strong>in</strong>g and water level changes have<br />
made mixed stands <strong>of</strong> red maple and Atlantic<br />
white cedar common <strong>in</strong> zone I. White p<strong>in</strong>e is a<br />
comrnon associate <strong>of</strong> red maple <strong>in</strong> many zone I<br />
swamps; <strong>in</strong> parts <strong>of</strong> sou<strong>the</strong>astern New England<br />
<strong>the</strong>se species may be codom<strong>in</strong>ant wirier 1989b).<br />
Black spruce is common irz <strong>the</strong> ~ior<strong>the</strong>rn portion <strong>of</strong><br />
zone I, but, ;also associrttes with red maple <strong>in</strong> sou<strong>the</strong>rn<br />
areas, typIc~ilIy along <strong>the</strong> xllarg<strong>in</strong>s <strong>of</strong> bogs<br />
(Danxman and French 1987).<br />
Gray birch (EJtttula populifolicr), black ash, bal-<br />
sam fir, and ~mr<strong>the</strong>nl white cedar cornnlonly occur<br />
<strong>in</strong> red maple swcunps <strong>in</strong> <strong>the</strong> sou<strong>the</strong>rn parts <strong>of</strong> New<br />
ZIampshire, Vcbnxiont., and Ma<strong>in</strong>e. The Vermont<br />
Natural. EIeritage Progr:~rn (Thompson 1988) has<br />
described <strong>the</strong> black gunk swamp, corriposed <strong>of</strong><br />
black gum, hemlock, rmd red maple, as a rare<br />
association r~stricted to thc soti<strong>the</strong>astern part <strong>of</strong><br />
that state. Vlis associatio~l has also been de-<br />
@cribed In Vermont by Fouberg and Blunt (1970),<br />
and ixl &w Ehnpsliire by Baldw<strong>in</strong> (]%I). Oaks<br />
less common <strong>in</strong> red rlxaple swamps from <strong>the</strong><br />
nor<strong>the</strong>rn section <strong>of</strong> zone I; nor<strong>the</strong>rn red oak is <strong>the</strong><br />
rnost eomlon spcies <strong>in</strong> that area.<br />
Fewer tharx a dozen species dom<strong>in</strong>ate <strong>the</strong> shrub<br />
layer <strong>of</strong> red mapie swnnlps <strong>in</strong> zone 1. I-Iighbush<br />
blueberry, con<strong>in</strong>lon w<strong>in</strong>terberry, sweet pepperbush,<br />
spicebush, swaxnp azalea (Rhodo$Fndron<br />
~ILSCOSUI~~), nortJzern arrow-wood, sou<strong>the</strong>rn arrowwood<br />
(Viburnum d~?ntntu~r?), speckled alder, nannyberv<br />
(V kentaga), and poison sumac (Toxicdndron<br />
uernix) are <strong>the</strong> most common shrubs;<br />
greenbriers also are common, especially <strong>in</strong> sou<strong>the</strong>rn<br />
New England (Table 3.3). O<strong>the</strong>r common species<br />
<strong>in</strong>clude fetterbush (Leucothoe racemosa),<br />
maleberry (Lpriia l@str<strong>in</strong>a), chokeberries<br />
(Aronia spp.), swamp rose (Rosa pnlustris), mounta<strong>in</strong><br />
holly (Nernomnthus mucronczta), wi<strong>the</strong>rad<br />
(%burnun wss<strong>in</strong>oides), poison ivy, European<br />
buckthorn (Rhamnus franguh), mounta<strong>in</strong> laurel,<br />
sheep laurel, and American witch-hazel (Hamamelis<br />
virg<strong>in</strong>iana). Sweet pepperbush and swamp<br />
azalea are most common east <strong>of</strong> <strong>the</strong> Connecticut<br />
River, <strong>in</strong> <strong>the</strong> sou<strong>the</strong>rn section <strong>of</strong> zone I. Great<br />
rhododendron occurs locally from sou<strong>the</strong>rn New<br />
England southward. Mounta<strong>in</strong> holly, speckled alder,<br />
hobblebush (Viburnum lantanoides), American<br />
yew, and striped maple (Acer pensylvanicum)<br />
are more important <strong>in</strong> red maple swamps <strong>in</strong> <strong>the</strong><br />
nor<strong>the</strong>rn section <strong>of</strong> zone I.<br />
Species composition <strong>in</strong> <strong>the</strong> herb layer is more<br />
variable than <strong>in</strong> <strong>the</strong> tree or shrub layers <strong>of</strong> red<br />
maple swamps. Some common constituents are<br />
listed below, but <strong>the</strong>se species do not necessarily<br />
associate with each o<strong>the</strong>r, nor do <strong>the</strong>y all occur<br />
throughout zone I.<br />
C<strong>in</strong>namon fern is <strong>the</strong> most common fern <strong>in</strong><br />
zone I red maple swamps (see Fig. 3.9). Sensitive<br />
fern (Onoclea sensibilis), royal fern (Osmundu<br />
regalis), marsh fern (Thelypteris thlypteroides),<br />
and sp<strong>in</strong>ulose woodfern (Dryopteris sp<strong>in</strong>ubsa) are<br />
o<strong>the</strong>r species that are commonly found throughout<br />
this zone (Table 3.3). Locally common species<br />
<strong>in</strong>clude Virg<strong>in</strong>ia cha<strong>in</strong>-fern (Woodwardia virg<strong>in</strong>ica),<br />
netted cha<strong>in</strong>-fern (W. areohta), <strong>in</strong>terrupted<br />
fern (Osmundu claytoniana), Massachusetts<br />
fern (Thelypteris simulata), New York fern<br />
(T. noveboracensis), and ostrich fern (Matteuccia<br />
struthiopteris).<br />
Gram<strong>in</strong>oid plants from zone I red maple<br />
swamps commonly <strong>in</strong>clude sedges (e.g., Carex<br />
stricta, C. lacustris, C. bnchocarpa, C. cr<strong>in</strong>ita)<br />
and grasses such as bluejo<strong>in</strong>t grass (Cahmagrostis<br />
canadensis) and manna grass (Glyceria<br />
spp.). Skunk cabbage (SympEautrpus foetidus),<br />
false hellebore (Veratrum viride), marsh marigold<br />
(Caltha palustris), spotted touch-me-not (Impatiens<br />
capensis), wild lily-<strong>of</strong>-<strong>the</strong>-valley (Maian<strong>the</strong>mum<br />
canad.en.se), violets (Viola spp.), wild sarsaparilla<br />
(Aralia nudicaulis), blue flag (Iris<br />
uersicolor), bugleweeds (Lycopus spp.), starflower<br />
(Trierztalis borealis), and goldthread (Coptk trifolia)<br />
are common forbs. Because <strong>of</strong> <strong>the</strong>ir low stature,<br />
trail<strong>in</strong>g shrubs are listed with <strong>the</strong> forbs <strong>in</strong><br />
Table 3.3; swamp dewberry (Rubus hkpidus), teaberry<br />
(Gaul<strong>the</strong>ria procumbens), and partridgeberry<br />
(Mtchella repens) are three <strong>of</strong> <strong>the</strong> most<br />
comrnon species <strong>in</strong> zone I red maple swamps.<br />
Mosses represent an important component <strong>of</strong><br />
<strong>the</strong> flora <strong>in</strong> many red maple swamps. S<strong>in</strong>ce few<br />
studies describe any but <strong>the</strong> most common genera<br />
and species, however, a comprehensive list<strong>in</strong>g <strong>of</strong>