SPATIAL AND TEMPORAL VARIATION IN MACROINVERTEBRATE ABUNDANCE IN TRIBUTARIES AT THE HUBBARD BROOK EXPERIMENTAL FOREST
The Hubbard Brook Experimental Forest in New Hampshire has an especially rich history of long-term monitoring and experimental studies of ecosystem ecology. Stream biogeochemistry and hydrology are among the topics that have been extensively investigated, but the dynamics of stream macroinvertebrate communities in the watershed have received less attention. A survey was initiated in 2013 to document the macroinvertebrate communities across the Hubbard Brook valley. Using a Surber sampler, specimens were collected two times each summer from sites in 10 tributaries that flow into Hubbard Brook. Patterns in abundance and diversity of the macroinvertebrate community are discussed with respect to sampling time (mid vs. late summer); in the context of abiotic and biotic variables including pH, canopy cover, and the presence of brook trout (Salvelinus fontinalis); and in comparison with earlier work in the watershed.
Kerry Yurewicz (Primary Presenter/Author), Plymouth State University, firstname.lastname@example.org;