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• 31. [Article] Effects of grass seed agriculture on aquatic invertebrate communities in seasonal wetlands of the southern Willamette Valley, Oregon

  An estimated 99% of native wet prairie has been lost in the Willamette Valley, Oregon, but a large number of seasonal wetlands remain on private lands dedicated to grass seed production within the historical ...

  Citation × Citation Citation Abstract Copy Title: Effects of grass seed agriculture on aquatic invertebrate communities in seasonal wetlands of the southern Willamette Valley, Oregon Author: Wyss, Lance A. An estimated 99% of native wet prairie has been lost in the Willamette Valley, Oregon, but a large number of seasonal wetlands remain on private lands dedicated to grass seed production within the historical wet prairie landscape. Because agriculture is known to alter physical and chemical wetland conditions, I investigated if aquatic invertebrate communities differed among annual grass seed farmed wetlands, perennial grass seed farmed wetlands, and native wet prairie. I sampled 30 southern Willamette Valley wetlands (n = 10 in each land use category) in spring of 2009 and resampled 28 in spring of 2010 that are hydrogeomorphically classified as Flats. Invertebrate community composition in native wet prairie differed from farmed wetlands (A-stats = 0.37, P < 0.001). Specifically, taxa richness (26.2 ± 1.2 in 2009 and 27.4 ± 1.0 in 2010) and diversity (3.0 ± 0.1 in 2009 and 3.1 ± 0.1 in 2010) were higher. From Indicator Species Analysis, taxa representative of wet prairie included a flightless beetle (Apteraliplus parvulus), a cladoceran (Dumontia oregonensis), an isopod (Caecidotea sp.), Calanoida copepods, and Lymnaeidae snails. Invertebrate density (individuals/m²) did not differ among land-use groups, but biomass (mg/m²) in perennial grass wetlands was greater than annual grass wetlands both years. Biomass in perennial grass farmed wetlands was also higher than native wet prairie in 2009 and similar in 2010. Wetland invertebrate composition was strongly associated with reduced vegetation cover and increases in water turbidity and conductivity with farmed sites having lower cover and higher turbidity and conductivity. These findings suggest grass seed farming practices such as soil tillage and field leveling have affects on invertebrate communities by lowering diversity and richness and altering community composition. However, farmed seasonal wetlands still provide habitat for aquatic invertebrates, contribute to the region's biodiversity, and are substantial food resources for wildlife. This grass seed agricultural landscape is an important seasonal wetland habitat and needs to be incorporated into regional conservation plans. Title: Effects of grass seed agriculture on aquatic invertebrate communities in seasonal wetlands of the southern Willamette Valley, Oregon Author: Wyss, Lance A. An estimated 99% of native wet prairie has been lost in the Willamette Valley, Oregon, but a large number of seasonal wetlands remain on private lands dedicated to grass seed production within the historical wet prairie landscape. Because agriculture is known to alter physical and chemical wetland conditions, I investigated if aquatic invertebrate communities differed among annual grass seed farmed wetlands, perennial grass seed farmed wetlands, and native wet prairie. I sampled 30 southern Willamette Valley wetlands (n = 10 in each land use category) in spring of 2009 and resampled 28 in spring of 2010 that are hydrogeomorphically classified as Flats. Invertebrate community composition in native wet prairie differed from farmed wetlands (A-stats = 0.37, P < 0.001). Specifically, taxa richness (26.2 ± 1.2 in 2009 and 27.4 ± 1.0 in 2010) and diversity (3.0 ± 0.1 in 2009 and 3.1 ± 0.1 in 2010) were higher. From Indicator Species Analysis, taxa representative of wet prairie included a flightless beetle (Apteraliplus parvulus), a cladoceran (Dumontia oregonensis), an isopod (Caecidotea sp.), Calanoida copepods, and Lymnaeidae snails. Invertebrate density (individuals/m²) did not differ among land-use groups, but biomass (mg/m²) in perennial grass wetlands was greater than annual grass wetlands both years. Biomass in perennial grass farmed wetlands was also higher than native wet prairie in 2009 and similar in 2010. Wetland invertebrate composition was strongly associated with reduced vegetation cover and increases in water turbidity and conductivity with farmed sites having lower cover and higher turbidity and conductivity. These findings suggest grass seed farming practices such as soil tillage and field leveling have affects on invertebrate communities by lowering diversity and richness and altering community composition. However, farmed seasonal wetlands still provide habitat for aquatic invertebrates, contribute to the region's biodiversity, and are substantial food resources for wildlife. This grass seed agricultural landscape is an important seasonal wetland habitat and needs to be incorporated into regional conservation plans. Close

• 32. [Article] Floodplain Habitat Metric: User’s Guide

  The metric is encompassed in two documents, this Floodplain Habitat Metric User’s Guide and a Floodplain Habitat Calculator.

  Citation × Citation Citation Abstract Copy Title: Floodplain Habitat Metric: User’s Guide Author: Defenders of Wildlife The metric is encompassed in two documents, this Floodplain Habitat Metric User’s Guide and a Floodplain Habitat Calculator. Title: Floodplain Habitat Metric: User’s Guide Author: Defenders of Wildlife The metric is encompassed in two documents, this Floodplain Habitat Metric User’s Guide and a Floodplain Habitat Calculator. Close

• 33. [Article] Clover Creek restoration

  This project included 8 miles of fencing, 18 stock water tanks, 10 acres of riparian planting, 1 hardened crossing and 1 culvert crossing. Six landowners participated in the project.

  Citation × Citation Citation Abstract Copy Title: Clover Creek restoration Author: Partnership for the Umpqua Rivers This project included 8 miles of fencing, 18 stock water tanks, 10 acres of riparian planting, 1 hardened crossing and 1 culvert crossing. Six landowners participated in the project. Title: Clover Creek restoration Author: Partnership for the Umpqua Rivers This project included 8 miles of fencing, 18 stock water tanks, 10 acres of riparian planting, 1 hardened crossing and 1 culvert crossing. Six landowners participated in the project. Close

• 34. [Article] Documentation of land use plan conformance and NEPA adequacy (DNA)

  Citation × Citation Citation Abstract Copy Title: Documentation of land use plan conformance and NEPA adequacy (DNA) Author: Klamath Falls Resource Area, United States. Bureau of Land Management Title: Documentation of land use plan conformance and NEPA adequacy (DNA) Author: Klamath Falls Resource Area, United States. Bureau of Land Management Close

• 35. [Article] Biennial report--The Oregon Plan for salmon and watersheds 2003-2005 synopsis

  Citation × Citation Citation Abstract Copy Title: Biennial report--The Oregon Plan for salmon and watersheds 2003-2005 synopsis Author: Oregon Plan for Salmon and Watersheds Title: Biennial report--The Oregon Plan for salmon and watersheds 2003-2005 synopsis Author: Oregon Plan for Salmon and Watersheds Close

• 36. [Article] Documentation of land use plan conformance and NEPA adequacy (DNA)

  Citation × Citation Citation Abstract Copy Title: Documentation of land use plan conformance and NEPA adequacy (DNA) Author: Klamath Falls Resource Area, United States. Bureau of Land Management Title: Documentation of land use plan conformance and NEPA adequacy (DNA) Author: Klamath Falls Resource Area, United States. Bureau of Land Management Close

• 37. [Image] Micarea peliocarpa

  	Apothecial section; Habitat: Wetlands and dikes with scattered trees and shrubs; Location: Near mouth of Wilson River on Tillamook Bay; Substrate: Trunk, Alnus; Elevation: 4 meters.
  	Citation × Citation Citation Abstract Copy Title: Micarea peliocarpa Author: McCune, Bruce Apothecial section; Habitat: Wetlands and dikes with scattered trees and shrubs; Location: Near mouth of Wilson River on Tillamook Bay; Substrate: Trunk, Alnus; Elevation: 4 meters. Title: Micarea peliocarpa Author: McCune, Bruce Apothecial section; Habitat: Wetlands and dikes with scattered trees and shrubs; Location: Near mouth of Wilson River on Tillamook Bay; Substrate: Trunk, Alnus; Elevation: 4 meters. Close

• 38. [Image] Micarea peliocarpa

  	Apothecia; Habitat: Wetlands and dikes with scattered trees and shrubs; Location: Near mouth of Wilson River on Tillamook Bay; Substrate: Trunk, Alnus; Elevation: 4 meters.
  	Citation × Citation Citation Abstract Copy Title: Micarea peliocarpa Author: McCune, Bruce Apothecia; Habitat: Wetlands and dikes with scattered trees and shrubs; Location: Near mouth of Wilson River on Tillamook Bay; Substrate: Trunk, Alnus; Elevation: 4 meters. Title: Micarea peliocarpa Author: McCune, Bruce Apothecia; Habitat: Wetlands and dikes with scattered trees and shrubs; Location: Near mouth of Wilson River on Tillamook Bay; Substrate: Trunk, Alnus; Elevation: 4 meters. Close

• 39. [Image] Enterographa oregonensis

  	Thallus section; Habitat: Wetlands and dikes with scattered trees and shrubs; Location: Near mouth of Wilson River on Tillamook Bay; Substrate: Picea twig; Elevation: 4 meters.
  	Citation × Citation Citation Abstract Copy Title: Enterographa oregonensis Author: McCune, Bruce Year: 2003 Thallus section; Habitat: Wetlands and dikes with scattered trees and shrubs; Location: Near mouth of Wilson River on Tillamook Bay; Substrate: Picea twig; Elevation: 4 meters. Title: Enterographa oregonensis Author: McCune, Bruce Year: 2003 Thallus section; Habitat: Wetlands and dikes with scattered trees and shrubs; Location: Near mouth of Wilson River on Tillamook Bay; Substrate: Picea twig; Elevation: 4 meters. Close

• 40. [Image] Arthopyrenia plumbaria

  	Spores; Habitat: Wetlands and dikes with scattered trees and shrubs; Location: Near mouth of Wilson River on Tillamook Bay; Substrate: Branch, Alnus; Elevation: 4 meters.
  	Citation × Citation Citation Abstract Copy Title: Arthopyrenia plumbaria Author: McCune, Bruce Spores; Habitat: Wetlands and dikes with scattered trees and shrubs; Location: Near mouth of Wilson River on Tillamook Bay; Substrate: Branch, Alnus; Elevation: 4 meters. Title: Arthopyrenia plumbaria Author: McCune, Bruce Spores; Habitat: Wetlands and dikes with scattered trees and shrubs; Location: Near mouth of Wilson River on Tillamook Bay; Substrate: Branch, Alnus; Elevation: 4 meters. Close