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1 September 2000 HIGH SPECIES RICHNESS OF CADDISFLIES (TRICHOPTERA) FROM A RIPARIAN WETLAND IN MAINE
Alexander D. Huryn, Steven C. Harris
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Abstract

Collections of caddisflies from a riparian wetland associated with Tomah Stream (Washington County, ME) have revealed a rich assemblage of 148 species, comprising approximately one-half of all species known from Maine. This wetland is the only location documented in Maine for 11 species of caddisflies. Seven of these are widely distributed throughout northeastern North America, and their occurrence in Maine is not surprising. Records for four species, however, represent northeastward range extensions of 700–1500 km, and one species, a member of the microcaddisfly genus Hydroptila, is new to science. The high species richness of caddisflies documented in this study, combined with the presence of potentially isolated populations of several species with predominantly southern distributions, suggests that the Tomah Stream wetland may be a hotspot for freshwater invertebrate diversity in Maine. Current knowledge, however, is not sufficient to allow conclusions about whether the level of species richness demonstrated in this study is a local-scale phenomenon or one that should generally be expected for riparian wetlands in northeastern North America.

Alexander D. Huryn and Steven C. Harris "HIGH SPECIES RICHNESS OF CADDISFLIES (TRICHOPTERA) FROM A RIPARIAN WETLAND IN MAINE," Northeastern Naturalist 7(3), 189-204, (1 September 2000). https://doi.org/10.1656/1092-6194(2000)007[0189:HSROCT]2.0.CO;2
Published: 1 September 2000
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