Colonizing macroinvertebrate community data Costello & Burton. 2014. Response of stream ecosystem function and structure to sediment metal: Context dependency and variation among endpoints. Elementa. 10.12952/journal.elementa.000030 Contact information: David Costello Kent State University dcostel3@kent.edu Context: Abundance of macroinvertebrate families colonizing sediments amended with Cu and Ni. The experiment was conducted in two streams and at each stream two sediment types with 4 metal treatments each were used. Each treatment was replicated 3x for a total of 48 experimental units. Temporal coverage: The experiment was conducted in July-Aug. 2010. Macroinvertebrates were allowed to colonize baskets for 4 weeks. Salmon-Trout River: 21 July 2010-17 August 2010. Big Pup Creek: 20 July 2010-18 Aug. 2010. Geographic coverage: Dead Kelsey Watershed, Upper Peninsula of Michigan, USA Salmon-Trout River: 46¡46.96 N, 87¡52.63 W Big Pup Creek: 46¡42.65 N, 87¡42.31 W Data codes: LB Ð ÒLow bindingÓ sediment from Alder Creek HB Ð ÒHigh bindingÓ sediment from Salmon-Trout River EPT - The orders Ephemeroptera, Plecoptera, Trichoptera NA Ð Sample lost, data not available Attributes: Name Definition Type Units Site_ID Unique site ID Discrete Sed Sediment type Discrete Site Stream location Discrete Nom_Treat Nominal metal treatment Discrete Rep Treatment replicate Discrete Cu_SED Total Cu in sediment Continuous mg Cu/kg dw Ni_SED Total Ni in sediment Continuous mg Ni/kg dw Ameletidae-Tipulidae # of individuals in the family Count Count Abundance Total # of invertebrates Count Count Richness Total number of families Count Count H_div Shannon diversity D_div Inverse Simpson diversity EPT_Ab # of individuals in EPT Count Count