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• 1. [Article] The distribution and reproductive success of the Western Snowy Plover along the Oregon coast - 2013

  Research report submitted by the Oregon Biodiversity Information Center, part of the Institute for Natural Resources. Report submitted to the Coos Bay District - Bureau of Land Management, U.S. Fish and ...

  Citation × Citation Citation Abstract Copy Title: The distribution and reproductive success of the Western Snowy Plover along the Oregon coast - 2013 Author: Farrar, J. Daniel, Gaines, Eleanor P., Breyer, Melissa F., Castelein, Kathleen A., Lauten, David J. Research report submitted by the Oregon Biodiversity Information Center, part of the Institute for Natural Resources. Report submitted to the Coos Bay District - Bureau of Land Management, U.S. Fish and Wildlife Service, Oregon Department of Fish and Wildlife, Oregon Parks and Recreation Department. Title: The distribution and reproductive success of the Western Snowy Plover along the Oregon coast - 2013 Author: Farrar, J. Daniel, Gaines, Eleanor P., Breyer, Melissa F., Castelein, Kathleen A., Lauten, David J. Research report submitted by the Oregon Biodiversity Information Center, part of the Institute for Natural Resources. Report submitted to the Coos Bay District - Bureau of Land Management, U.S. Fish and Wildlife Service, Oregon Department of Fish and Wildlife, Oregon Parks and Recreation Department. Close

• 2. [Article] The Distribution and Reproductive Success of the Western Snowy Plover along the Oregon Coast - 2016

  We monitored the distribution, abundance and productivity of the federally threatened Western Snowy Plover (Charadrius nivosus nivosus) along the Oregon coast from 5 April – 31 August 2016. From north ...

  Citation × Citation Citation Abstract Copy Title: The Distribution and Reproductive Success of the Western Snowy Plover along the Oregon Coast - 2016 Author: Lauten, David J., Castelein, Kathleen A., Farrar, J. Daniel, Kotaich, Adam A., Krygsman, Erica, Gaines, Eleanor P. Year: 2016 We monitored the distribution, abundance and productivity of the federally threatened Western Snowy Plover (Charadrius nivosus nivosus) along the Oregon coast from 5 April – 31 August 2016. From north to south, we surveyed and monitored plover activity at Sutton Beach, Siltcoos River estuary, the Dunes Overlook, North and South Tahkenitch Creek, Tenmile Creek, Coos Bay North Spit, Bandon Snowy Plover Management Area, New River HRA and adjacent lands, and Floras Lake. Our objectives in 2016 were to: 1) estimate the size of the adult Snowy Plover population, 2) locate plover nests, 3) determine nest success, 4) implement nest protection as appropriate (e.g. ropes, signs, exclosures), 5) develop and test a sampling technique to determine plover productivity, 6) monitor brood outcomes, and 7) collect general observational data about predators and use cameras to document predator activity at nests. We estimated the resident number of Snowy Plovers in Oregon at 518 individuals. The adult plover population was the highest estimate recorded since monitoring began in 1990. We monitored 694 nests in 2016. Overall apparent nest success was 25%. Nest failures were attributed to unknown depredation, unknown cause, harrier depredation, corvid depredation, mammalian depredation, gull depredation, one-egg nest, wind/weather, abandonment, overwashing and infertility. We monitored a sample of 150 of 192 known broods, and documented a minimum of 197 fledglings. Overall brood success was 71%, fledging success was 43%, but only 0.60 +/- 0.09 fledglings per male were produced. Title: The Distribution and Reproductive Success of the Western Snowy Plover along the Oregon Coast - 2016 Author: Lauten, David J., Castelein, Kathleen A., Farrar, J. Daniel, Kotaich, Adam A., Krygsman, Erica, Gaines, Eleanor P. Year: 2016 We monitored the distribution, abundance and productivity of the federally threatened Western Snowy Plover (Charadrius nivosus nivosus) along the Oregon coast from 5 April – 31 August 2016. From north to south, we surveyed and monitored plover activity at Sutton Beach, Siltcoos River estuary, the Dunes Overlook, North and South Tahkenitch Creek, Tenmile Creek, Coos Bay North Spit, Bandon Snowy Plover Management Area, New River HRA and adjacent lands, and Floras Lake. Our objectives in 2016 were to: 1) estimate the size of the adult Snowy Plover population, 2) locate plover nests, 3) determine nest success, 4) implement nest protection as appropriate (e.g. ropes, signs, exclosures), 5) develop and test a sampling technique to determine plover productivity, 6) monitor brood outcomes, and 7) collect general observational data about predators and use cameras to document predator activity at nests. We estimated the resident number of Snowy Plovers in Oregon at 518 individuals. The adult plover population was the highest estimate recorded since monitoring began in 1990. We monitored 694 nests in 2016. Overall apparent nest success was 25%. Nest failures were attributed to unknown depredation, unknown cause, harrier depredation, corvid depredation, mammalian depredation, gull depredation, one-egg nest, wind/weather, abandonment, overwashing and infertility. We monitored a sample of 150 of 192 known broods, and documented a minimum of 197 fledglings. Overall brood success was 71%, fledging success was 43%, but only 0.60 +/- 0.09 fledglings per male were produced. Close

• 3. [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

• 4. [Article] The Distribution and reproductive success of the Western Snowy Plover along the Oregon Coast - 2012

  This report represents ORBIC's he 23rd year of monitoring the distribution, abundance, and productivity of Snowy Plovers along the Oregon coast during the breeding season. In cooperation with federal and ...

  Citation × Citation Citation Abstract Copy Title: The Distribution and reproductive success of the Western Snowy Plover along the Oregon Coast - 2012 Author: Castelein, Kathleen A., Kotaich, Adam A., Lauten, David J., Farrar, J. Daniel, Gaines, Eleanor P. This report represents ORBIC's he 23rd year of monitoring the distribution, abundance, and productivity of Snowy Plovers along the Oregon coast during the breeding season. In cooperation with federal and state agencies, plover management has focused on habitat restoration and maintenance at breeding sites, non-lethal and lethal predator management, and management of human related disturbances to nesting plovers. Title: The Distribution and reproductive success of the Western Snowy Plover along the Oregon Coast - 2012 Author: Castelein, Kathleen A., Kotaich, Adam A., Lauten, David J., Farrar, J. Daniel, Gaines, Eleanor P. This report represents ORBIC's he 23rd year of monitoring the distribution, abundance, and productivity of Snowy Plovers along the Oregon coast during the breeding season. In cooperation with federal and state agencies, plover management has focused on habitat restoration and maintenance at breeding sites, non-lethal and lethal predator management, and management of human related disturbances to nesting plovers. Close

• 5. [Article] The Distribution and Reproductive Success of the Western Snowy Plover along the Oregon Coast - 2016

  We monitored the distribution, abundance and productivity of the federally threatened Western SnowyPlover (Charadrius nivosus nivosus) along the Oregon coast from 5 April – 31 August 2016. From north to ...

  Citation × Citation Citation Abstract Copy Title: The Distribution and Reproductive Success of the Western Snowy Plover along the Oregon Coast - 2016 Author: Farrar, J. Daniel, Kotaich, Adam A., Gaines, Eleanor P., Krygsman, Erica, Castelein, Kathleen A., Lauten, David J. We monitored the distribution, abundance and productivity of the federally threatened Western SnowyPlover (Charadrius nivosus nivosus) along the Oregon coast from 5 April – 31 August 2016. From north to south, we surveyed and monitored plover activity at Sutton Beach, Siltcoos River estuary, the Dunes Overlook, North and South Tahkenitch Creek, Tenmile Creek, Coos Bay North Spit, Bandon Snowy Plover Management Area, New River HRA and adjacent lands, and Floras Lake. Our objectives in 2016 were to: 1) estimate the size of the adult Snowy Plover population, 2) locate plover nests, 3) determine nest success, 4) implement nest protection as appropriate (e.g. ropes, signs, exclosures), 5) develop and test a sampling technique to determine plover productivity, 6) monitor brood outcomes, and 7) collect general observational data about predators and use cameras to document predator activity at nests. We estimated the resident number of Snowy Plovers in Oregon at 518 individuals. The adult plover population was the highest estimate recorded since monitoring began in 1990. We monitored 694 nests in 2016. Overall apparent nest success was 25%. Nest failures were attributed to unknown depredation, unknown cause, harrier depredation, corvid depredation, mammalian depredation, gull depredation, one-egg nest, wind/weather, abandonment, overwashing and infertility. We monitored a sample of 150 of 192 known broods, and documented a minimum of 197 fledglings. Overall brood success was 71%, fledging success was 43%, but only 0.60 +/- 0.09 fledglings per male were produced. Title: The Distribution and Reproductive Success of the Western Snowy Plover along the Oregon Coast - 2016 Author: Farrar, J. Daniel, Kotaich, Adam A., Gaines, Eleanor P., Krygsman, Erica, Castelein, Kathleen A., Lauten, David J. We monitored the distribution, abundance and productivity of the federally threatened Western SnowyPlover (Charadrius nivosus nivosus) along the Oregon coast from 5 April – 31 August 2016. From north to south, we surveyed and monitored plover activity at Sutton Beach, Siltcoos River estuary, the Dunes Overlook, North and South Tahkenitch Creek, Tenmile Creek, Coos Bay North Spit, Bandon Snowy Plover Management Area, New River HRA and adjacent lands, and Floras Lake. Our objectives in 2016 were to: 1) estimate the size of the adult Snowy Plover population, 2) locate plover nests, 3) determine nest success, 4) implement nest protection as appropriate (e.g. ropes, signs, exclosures), 5) develop and test a sampling technique to determine plover productivity, 6) monitor brood outcomes, and 7) collect general observational data about predators and use cameras to document predator activity at nests. We estimated the resident number of Snowy Plovers in Oregon at 518 individuals. The adult plover population was the highest estimate recorded since monitoring began in 1990. We monitored 694 nests in 2016. Overall apparent nest success was 25%. Nest failures were attributed to unknown depredation, unknown cause, harrier depredation, corvid depredation, mammalian depredation, gull depredation, one-egg nest, wind/weather, abandonment, overwashing and infertility. We monitored a sample of 150 of 192 known broods, and documented a minimum of 197 fledglings. Overall brood success was 71%, fledging success was 43%, but only 0.60 +/- 0.09 fledglings per male were produced. Close

• 6. [Article] The Distribution and Reproductive Success of the Western Snowy Plover along the Oregon Coast - 2011

  From 6 April – 19 September 2011 we monitored the distribution, abundance and productivity of the federally Threatened Western Snowy Plover (Charadrius nivosus nivosus) along the Oregon coast. From north ...

  Citation × Citation Citation Abstract Copy Title: The Distribution and Reproductive Success of the Western Snowy Plover along the Oregon Coast - 2011 Author: Institute for Natural Resources, Castelein, Kathleen A., Gaines, Eleanor P., Lauten, David J., Farrar, J. Daniel, Kotaich, Adam A. From 6 April – 19 September 2011 we monitored the distribution, abundance and productivity of the federally Threatened Western Snowy Plover (Charadrius nivosus 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 2011 were to: 1) estimate the size of the adult Snowy Plover population, 2) locate plover nests, 3) continue use of mini-exclosures(MEs) to protect nests from predators when and where needed, 4) determine nest success, 5) determine fledging success, 6) monitor brood movements, 7) collect general observational data about predators, and 8) evaluate the effectiveness of predator management. We observed an estimated 247-253 adult Snowy Plovers; a minimum of 214 individuals were known to have nested. The adult plover population was the highest estimate recorded since monitoring began in 1990. We monitored 289 nests in 2011, the highest number of nests since monitoring began in 1990. Overall apparent nest success was 50%. Exclosed nests (n = 48) had a 71% apparent nest success rate, and unexclosed nests (n = 241) had a 48% apparent nest success rate. Nest failures were attributed to unknown depredation (22%), corvid depredation (20%), unknown cause (18%), one-egg nests (16%), abandonment (15%), wind/weather (3%), mammalian depredation (2%), adult plover depredation (2%), infertility (1%), and rodent depredation (1%). We monitored 148 broods, including four from unknown nests, and documented a minimum of 168 fledglings. Overall brood success was 71%, fledging success was 46%, and 1.57 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 - 2011 Author: Institute for Natural Resources, Castelein, Kathleen A., Gaines, Eleanor P., Lauten, David J., Farrar, J. Daniel, Kotaich, Adam A. From 6 April – 19 September 2011 we monitored the distribution, abundance and productivity of the federally Threatened Western Snowy Plover (Charadrius nivosus 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 2011 were to: 1) estimate the size of the adult Snowy Plover population, 2) locate plover nests, 3) continue use of mini-exclosures(MEs) to protect nests from predators when and where needed, 4) determine nest success, 5) determine fledging success, 6) monitor brood movements, 7) collect general observational data about predators, and 8) evaluate the effectiveness of predator management. We observed an estimated 247-253 adult Snowy Plovers; a minimum of 214 individuals were known to have nested. The adult plover population was the highest estimate recorded since monitoring began in 1990. We monitored 289 nests in 2011, the highest number of nests since monitoring began in 1990. Overall apparent nest success was 50%. Exclosed nests (n = 48) had a 71% apparent nest success rate, and unexclosed nests (n = 241) had a 48% apparent nest success rate. Nest failures were attributed to unknown depredation (22%), corvid depredation (20%), unknown cause (18%), one-egg nests (16%), abandonment (15%), wind/weather (3%), mammalian depredation (2%), adult plover depredation (2%), infertility (1%), and rodent depredation (1%). We monitored 148 broods, including four from unknown nests, and documented a minimum of 168 fledglings. Overall brood success was 71%, fledging success was 46%, and 1.57 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