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• 21. [Article] The Distribution and Reproductive Success of the Western Snowy Plover along the Oregon Coast - 2010

  From 8 April – 27 September 2010 we monitored the distribution, abundance and productivity of the federally Threatened Western Snowy Plover (Charadrius alexandrinus nivosus) along the Oregon coast. From ...

  Citation × Citation Citation Abstract Copy Title: The Distribution and Reproductive Success of the Western Snowy Plover along the Oregon Coast - 2010 Author: Institute for Natural Resources, Farrar, Daniel, Castelein, Kathleen A., Kotaich, Adam A., Lauten, David J., Gaines, Eleanor P. From 8 April – 27 September 2010 we monitored the distribution, abundance and productivity of the federally Threatened Western Snowy Plover (Charadrius alexandrinus nivosus) along the Oregon coast. From north to south, we surveyed and monitored plover activity at Sutton Beach, Siltcoos River estuary, the Dunes Overlook, North Tahkenitch Creek, Tenmile Creek, Coos Bay North Spit, Bandon Beach, New River, and Floras Lake. Our objectives for the Oregon coastal population in 2010 were to: 1) estimate the size of the adult Snowy Plover population, 2) locate plover nests, 3) continue selective use of mini-exclosures (MEs) to protect nests from predators and evaluate whether exclosure use can be reduced, 4) determine nest success, 5) determine fledging success, 6) monitor brood movements, 7) collect general observational information about predators, and 8) evaluate the effectiveness of predator management. We observed an estimated 232-236 adult Snowy Plovers; a minimum of 175 individuals was known to have nested. The adult plover population was the highest estimate recorded since monitoring began in 1990. We monitored 261 nests in 2010, the highest number of nests since monitoring began in 1990. Overall Mayfield nest success was 25%. Exclosed nests (n = 67) had a 72% apparent nest success rate, and unexclosed nests (n = 194) had a 23% apparent nest success rate. Nest failures were attributed to unknown depredation (24%), unknown cause (17%), one-egg nests (15%), rodent depredation (14%), abandonment (12%), wind/weather (5%), corvid depredation (5%), mammalian depredation (4%), wave overwash (2%), infertility (2%), and adult depredation (1%). We monitored 94 broods, including two from unknown nests, and documented a minimum of 80 fledglings. Overall brood success was 55%, fledging success was 33%, and 0.90 fledglings per male were produced. Continued predator management, habitat improvement and maintenance, and management of recreational activities at all sites are recommended to achieve recovery goals. Title: The Distribution and Reproductive Success of the Western Snowy Plover along the Oregon Coast - 2010 Author: Institute for Natural Resources, Farrar, Daniel, Castelein, Kathleen A., Kotaich, Adam A., Lauten, David J., Gaines, Eleanor P. From 8 April – 27 September 2010 we monitored the distribution, abundance and productivity of the federally Threatened Western Snowy Plover (Charadrius alexandrinus nivosus) along the Oregon coast. From north to south, we surveyed and monitored plover activity at Sutton Beach, Siltcoos River estuary, the Dunes Overlook, North Tahkenitch Creek, Tenmile Creek, Coos Bay North Spit, Bandon Beach, New River, and Floras Lake. Our objectives for the Oregon coastal population in 2010 were to: 1) estimate the size of the adult Snowy Plover population, 2) locate plover nests, 3) continue selective use of mini-exclosures (MEs) to protect nests from predators and evaluate whether exclosure use can be reduced, 4) determine nest success, 5) determine fledging success, 6) monitor brood movements, 7) collect general observational information about predators, and 8) evaluate the effectiveness of predator management. We observed an estimated 232-236 adult Snowy Plovers; a minimum of 175 individuals was known to have nested. The adult plover population was the highest estimate recorded since monitoring began in 1990. We monitored 261 nests in 2010, the highest number of nests since monitoring began in 1990. Overall Mayfield nest success was 25%. Exclosed nests (n = 67) had a 72% apparent nest success rate, and unexclosed nests (n = 194) had a 23% apparent nest success rate. Nest failures were attributed to unknown depredation (24%), unknown cause (17%), one-egg nests (15%), rodent depredation (14%), abandonment (12%), wind/weather (5%), corvid depredation (5%), mammalian depredation (4%), wave overwash (2%), infertility (2%), and adult depredation (1%). We monitored 94 broods, including two from unknown nests, and documented a minimum of 80 fledglings. Overall brood success was 55%, fledging success was 33%, and 0.90 fledglings per male were produced. Continued predator management, habitat improvement and maintenance, and management of recreational activities at all sites are recommended to achieve recovery goals. Close

• 22. [Article] Report on wintering western snowy plovers at Coos Bay north spit and impacts to plovers from the North Jetty repair project, winter 2009

  coast of the Pacific Ocean in California, Oregon, and Washington and at alkaline lakes in the interior of the western United States (Page et al. 1991). Loss of habitat, predation pressures, and disturbance ...

  Citation × Citation Citation Abstract Copy Title: Report on wintering western snowy plovers at Coos Bay north spit and impacts to plovers from the North Jetty repair project, winter 2009 Author: Institute for Natural Resources, Castelein, Kathleen A., Gaines, Eleanor P., Lauten, David J., Oregon Natural Heritage Information Center coast of the Pacific Ocean in California, Oregon, and Washington and at alkaline lakes in the interior of the western United States (Page et al. 1991). Loss of habitat, predation pressures, and disturbance have caused the decline of the coastal population of Snowy Plovers and led to the listing of the Pacific Coast Population of Western Snowy Plovers as Threatened on March 5, 1993 (U.S. Fish and Wildlife Service 1993). Oregon Western Snowy Plovers are known to winter along the coast of Oregon as well as migrate to other wintering locations, mainly in California (Lauten et al. 2001, ORNHIC unpublished data). Previous winter surveys along the Oregon coast (Oregon Department of Fish and Wildlife, unpublished data, ORNHIC unpublished data) have documented the locations of wintering Snowy Plovers. Coos Bay North Spit (CBNS) is one location where plovers are known to winter. During the winter of 2008-2009, Army Corp of Engineers (ACOE) contracted Kerr Contractors, Inc. to complete repairs on the North Jetty of the Coos River. ACOE consulted with U.S. Fish and Wildlife Service (USFWS) regarding impacts to sensitive species including Western Snowy Plover. ACOE contracted Oregon Natural Heritage Information Center (ORNHIC) to complete two Snowy Plover surveys prior to jetty repair work, two plover surveys per week during repair work, and two plover surveys post repair work to document any potential impacts to wintering plovers. Title: Report on wintering western snowy plovers at Coos Bay north spit and impacts to plovers from the North Jetty repair project, winter 2009 Author: Institute for Natural Resources, Castelein, Kathleen A., Gaines, Eleanor P., Lauten, David J., Oregon Natural Heritage Information Center coast of the Pacific Ocean in California, Oregon, and Washington and at alkaline lakes in the interior of the western United States (Page et al. 1991). Loss of habitat, predation pressures, and disturbance have caused the decline of the coastal population of Snowy Plovers and led to the listing of the Pacific Coast Population of Western Snowy Plovers as Threatened on March 5, 1993 (U.S. Fish and Wildlife Service 1993). Oregon Western Snowy Plovers are known to winter along the coast of Oregon as well as migrate to other wintering locations, mainly in California (Lauten et al. 2001, ORNHIC unpublished data). Previous winter surveys along the Oregon coast (Oregon Department of Fish and Wildlife, unpublished data, ORNHIC unpublished data) have documented the locations of wintering Snowy Plovers. Coos Bay North Spit (CBNS) is one location where plovers are known to winter. During the winter of 2008-2009, Army Corp of Engineers (ACOE) contracted Kerr Contractors, Inc. to complete repairs on the North Jetty of the Coos River. ACOE consulted with U.S. Fish and Wildlife Service (USFWS) regarding impacts to sensitive species including Western Snowy Plover. ACOE contracted Oregon Natural Heritage Information Center (ORNHIC) to complete two Snowy Plover surveys prior to jetty repair work, two plover surveys per week during repair work, and two plover surveys post repair work to document any potential impacts to wintering plovers. Close

• 23. [Article] Regional Gravel Initiative Workshop Summary Report

  This report summarizes the presentations and discussions at the Regional Gravel Initiative Workshop. The Workshop was designed and conducted by the Institute for Natural Resources (INR) and Oregon Sea ...

  Citation × Citation Citation Abstract Copy Title: Regional Gravel Initiative Workshop Summary Report Author: Institute for Natural Resources, Kleibacker, Megan, Ewing, Amy, Achterman, Gail L. This report summarizes the presentations and discussions at the Regional Gravel Initiative Workshop. The Workshop was designed and conducted by the Institute for Natural Resources (INR) and Oregon Sea Grant (Sea Grant) on behalf of the U.S. Army Corps of Engineers (COE), the Oregon Department of State Lands (DSL) and the Oregon Concrete and Aggregate Producers Association to support and further the work of the Regional Gravel Initiative (RGI). The Workshop centered on a USGS report presented by Dr. Jim O’Connor and two scientific panels. The geomorphology panel was composed of Dr. Brian Cluer (NMFS), Dr. Pete Klingeman (OSU Department of Civil Engineering), Chris Lidstone (Lidstone and Associates) and Dr. Desiree Tullos (OSU Department of Biological and Environmental Engineering). The biological panel was composed of Todd Confer (Oregon Department of Fish and Wildlife), Dennis Halligan (Stillwater Sciences), Jim Waldvogel (Sea Grant), and Chuck Wheeler (NMFS). The report was prepared by Gail L. Achterman of the Institute for Natural Resources based upon notes taken by Amy Ewing, INR, Megan Kleibacker, Sea Grant, and several agency staff members who shared their notes. In the portions presented in conversational format, the text represents summary - rather than exact - quotations. For convenience moving forward, the report incorporates the discussion questions developed for the workshop by the RGI Technical Team. The questions and other material from the discussion question paper are italicized in the report. Title: Regional Gravel Initiative Workshop Summary Report Author: Institute for Natural Resources, Kleibacker, Megan, Ewing, Amy, Achterman, Gail L. This report summarizes the presentations and discussions at the Regional Gravel Initiative Workshop. The Workshop was designed and conducted by the Institute for Natural Resources (INR) and Oregon Sea Grant (Sea Grant) on behalf of the U.S. Army Corps of Engineers (COE), the Oregon Department of State Lands (DSL) and the Oregon Concrete and Aggregate Producers Association to support and further the work of the Regional Gravel Initiative (RGI). The Workshop centered on a USGS report presented by Dr. Jim O’Connor and two scientific panels. The geomorphology panel was composed of Dr. Brian Cluer (NMFS), Dr. Pete Klingeman (OSU Department of Civil Engineering), Chris Lidstone (Lidstone and Associates) and Dr. Desiree Tullos (OSU Department of Biological and Environmental Engineering). The biological panel was composed of Todd Confer (Oregon Department of Fish and Wildlife), Dennis Halligan (Stillwater Sciences), Jim Waldvogel (Sea Grant), and Chuck Wheeler (NMFS). The report was prepared by Gail L. Achterman of the Institute for Natural Resources based upon notes taken by Amy Ewing, INR, Megan Kleibacker, Sea Grant, and several agency staff members who shared their notes. In the portions presented in conversational format, the text represents summary - rather than exact - quotations. For convenience moving forward, the report incorporates the discussion questions developed for the workshop by the RGI Technical Team. The questions and other material from the discussion question paper are italicized in the report. Close