. Assessment of aquatic habitats on the Matador Ranch Phillips Co., MT. Aquatic invertebrates; Stream ecology; Watershed ecology. Matador Perennial Pond Scirpus (Big Stem Bulrush) emergent vegetation dominated, with Spikerush (Elocharis sp.) present and abundant. Fully aquatic plants included Meriophyllum sp. and Potamogeton sp. Macroinvertebrate Community: This community of prairie stream invertebrates consists of the Prairie Pool assemblage (SPA #12, Stagliano 2005). The 2007 sample was dominated by the snails (Physella- 100's), (Gyraulus, Helisoma anceps and Stagnicola -a few), the damselfl
. Assessment of aquatic habitats on the Matador Ranch Phillips Co., MT. Aquatic invertebrates; Stream ecology; Watershed ecology. Matador Perennial Pond Scirpus (Big Stem Bulrush) emergent vegetation dominated, with Spikerush (Elocharis sp.) present and abundant. Fully aquatic plants included Meriophyllum sp. and Potamogeton sp. Macroinvertebrate Community: This community of prairie stream invertebrates consists of the Prairie Pool assemblage (SPA #12, Stagliano 2005). The 2007 sample was dominated by the snails (Physella- 100's), (Gyraulus, Helisoma anceps and Stagnicola -a few), the damselfly taxa, Coenagrion /Enallagma sp, Lestes ; Ishnura, the crustaceans (Hyalella and Gammarus), many genera of the water boatman (Corixidae), the backswimmers, Notonecta, the mayfly (Callibaetis), and water-beetles {Oreodytes, Laccophilus, Hydroporus and Hygrotus). Painted turtles and woodhouse's toad (Bufo woodhousei) tadpoles were abundant. Fairy Shrimp Pools near Matador Perennial Pond: This roadside ditch pool was sampled on the way to the perennial pond across the road when I noticed movement within the recently (~2 weeks) filled old stream channel. Upon investigation and a few dipnet sweeps, the common fairy shrimp: Branchinecta paludosa (see picture) was found to be highly abundant (hundreds per sq. meter) in these isolated pools. Co- occurring with the fairy shrimp were Ostracoda crustaceans, backswimmer waterbugs: Notonecta, and the pioneering Hydrophilidae beetles: Hydrobious and Berosus. These insects were recent colonizers, while the crustaceans were hatched from drought- resistent diapausing eggs that were lying dormant in the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stagliano, David M. ,author; Poole, Linda; Montana Natural Heritage Program; Montana Natural Resource Info
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