Daniel R Ruthrauff, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 23
Tracking Data for Marbled Godwits (Limosa fedoa)
This data release includes 2 child items with tracking data for Marbled Godwits, a large-bodied shorebird that, in Alaska, nests in the southwestern portion of the state. Child Item 1: "Argos Satellite Tracking Data for Marbled Godwit (Limosa fedoa) - Processed Data" -- Quality-controlled data collected from Argos satellite transmitters. Child Item 2: "Argos Satellite Tracking Data f
Bristle-Thighed Curlew (Numenius tahitiensis) Mark-Resight Encounter History from the James Campbell National Wildlife Refuge and Surrounding Area, Oahu, Hawaii, 2012-2017
This data set contains one table with mark-resight observations of Bristle-thighed Curlews marked on Oahu, Hawaii, with plastic color leg flags, 2012-2017.
Allometrics of Baltic Tellin (Macoma balthica) bivalves from Cook Inlet, AK, and Baie de Somme, France, 2010-2011
This dataset contains two tables of sampling information and size and mass measurements of the Baltic Tellin (Macoma balthica) from sites in Cook Inlet, Alaska, USA, and the Baie de Somme estuary, France.
Migratory Timing and Site Use of Marbled Godwits Breeding in Alaska, 2008-2015
This dataset contains migration timing and land-based location information from nine Marbled Godwits (Limosa fedoa beringiae) equipped with solar-powered satellite transmitters on breeding grounds near Ugashik, Alaska, in June of 2008. Transmitters were programmed with a duty cycle of 10 hr on and 48 hr off, yielding 10,858 locations (47-3,490 locations per bird, depending on the...
Data for Montane-breeding Bird Distribution and Abundance across National Parks of Southwestern Alaska, 2004-2008
Observation data and model covariate data from breeding bird inventory conducted during May-June 2004 and 2008 primarily in montane areas (>100 m above sea level) in Aniakchak National Monument and Preserve (Aniakchak NMP), Katmai National Park and Preserve (Katmai NPP), and Lake Clark National Park and Preserve (Lake Clark NPP) in southwestern Alaska. Observers conducted 1,021 point...
Filter Total Items: 41
No results found.
Filter Total Items: 43
Unusual foraging observations associated with seabird die-offs in Alaska
We report the first documentation of off-water foraging by the Fork-tailed Storm-Petrel Oceanodroma furcata and Short-tailed Shearwater Ardenna tenuirostris, a behavior not previously documented in any member of the families Hydrobatidae or Procellariidae. Over a two-week period in September 2016, we regularly observed individuals of these species over land on an extensive intertidal...
Authors
Bryce W. Robinson, Lucas H. DeCicco, James H. Johnson, Daniel R. Ruthrauff
Montane-breeding bird distribution and abundance across national parks of southwestern Alaska
Between 2004 and 2008, biologists conducted an inventory of breeding birds during May–June primarily in montane areas (>100 m above sea level) in Aniakchak National Monument and Preserve (Aniakchak NMP), Katmai National Park and Preserve (Katmai NPP), and Lake Clark National Park and Preserve (Lake Clark NPP) in southwestern Alaska. Observers conducted 1,021 point counts along 169...
Authors
Courtney L. Amundson, Colleen M. Handel, Daniel R. Ruthrauff, T. Lee Tibbitts, Robert E. Gill
Energetic solutions of Rock Sandpipers to harsh winter conditions rely on prey quality
Rock Sandpipers Calidris ptilocnemis have the most northerly non-breeding distribution of any shorebird in the Pacific Basin (upper Cook Inlet, Alaska; 61°N, 151°W). In terms of freezing temperatures, persistent winds and pervasive ice, this site is the harshest used by shorebirds during winter. We integrated physiological, metabolic, behavioural and environmental aspects of the non...
Authors
Daniel R. Ruthrauff, Anne Dekinga, Robert E. Gill, Theunis Piersma
Normalized difference vegetation index as an estimator for abundance and quality of avian herbivore forage in arctic Alaska
Tools that can monitor biomass and nutritional quality of forage plants are needed to understand how arctic herbivores may respond to the rapidly changing environment at high latitudes. The Normalized Difference Vegetation Index (NDVI) has been widely used to assess changes in abundance and distribution of terrestrial vegetative communities. However, the efficacy of NDVI to measure...
Authors
Kyle R. Hogrefe, Vijay P. Patil, Daniel R. Ruthrauff, Brandt W. Meixell, Michael Budde, Jerry W. Hupp, David Ward
A global threats overview for Numeniini populations: synthesising expert knowledge for a group of declining migratory birds.
The Numeniini is a tribe of 13 wader species (Scolopacidae, Charadriiformes) of which seven are Near Threatened or globally threatened, including two Critically Endangered. To help inform conservation management and policy responses, we present the results of an expert assessment of the threats that members of this taxonomic group face across migratory flyways. Most threats are...
Authors
James W. Pearce-Higgins, Daniel T. Brown, David C. Douglas, José A. Alves, Mariagrazia Bellio, Pierrick Bocher, Graeme M. Buchannan, Robert P. Clay, Jesse R. Conklin, Nicola Crockford, Peter Dann, Jaanus Elts, Christian Friis, Richard H. Fuller, Jennifer A. Gill, Ken Gosbell, James H. Johnson, Rocio Marquez-Ferrando, José A. Masero, David S. Melville, Spike Millington, Clive D.T. Minton, Taej Mundkur, Erika Nol, Hannes Pehlak, Theunis Piersma, Danny I. Rogers, Daniel R. Ruthrauff, Nathan R. Senner, Junid Nazeer Shah, Rob D. Sheldon, Sergej A. Soloviev, Pavel S. Tomkovich, Yvonne I. Verkuil
Ways to be different: Foraging adaptations that facilitate higher intake rates in a northerly wintering shorebird compared with a low-latitude conspecific
At what phenotypic level do closely related subspecies that live in different environments differ with respect to food detection, ingestion and processing? This question motivated an experimental study on rock sandpipers (Calidris ptilocnemis). The species' nonbreeding range spans 20 deg of latitude, the extremes of which are inhabited by two subspecies: C. p. ptilocnemis that winters...
Authors
Daniel R. Ruthrauff, Robert E. Gill, Anne Dekinga, Jan A. van Gils, Theunis Piersma
Science and Products
Filter Total Items: 23
Tracking Data for Marbled Godwits (Limosa fedoa)
This data release includes 2 child items with tracking data for Marbled Godwits, a large-bodied shorebird that, in Alaska, nests in the southwestern portion of the state. Child Item 1: "Argos Satellite Tracking Data for Marbled Godwit (Limosa fedoa) - Processed Data" -- Quality-controlled data collected from Argos satellite transmitters. Child Item 2: "Argos Satellite Tracking Data f
Bristle-Thighed Curlew (Numenius tahitiensis) Mark-Resight Encounter History from the James Campbell National Wildlife Refuge and Surrounding Area, Oahu, Hawaii, 2012-2017
This data set contains one table with mark-resight observations of Bristle-thighed Curlews marked on Oahu, Hawaii, with plastic color leg flags, 2012-2017.
Allometrics of Baltic Tellin (Macoma balthica) bivalves from Cook Inlet, AK, and Baie de Somme, France, 2010-2011
This dataset contains two tables of sampling information and size and mass measurements of the Baltic Tellin (Macoma balthica) from sites in Cook Inlet, Alaska, USA, and the Baie de Somme estuary, France.
Migratory Timing and Site Use of Marbled Godwits Breeding in Alaska, 2008-2015
This dataset contains migration timing and land-based location information from nine Marbled Godwits (Limosa fedoa beringiae) equipped with solar-powered satellite transmitters on breeding grounds near Ugashik, Alaska, in June of 2008. Transmitters were programmed with a duty cycle of 10 hr on and 48 hr off, yielding 10,858 locations (47-3,490 locations per bird, depending on the...
Data for Montane-breeding Bird Distribution and Abundance across National Parks of Southwestern Alaska, 2004-2008
Observation data and model covariate data from breeding bird inventory conducted during May-June 2004 and 2008 primarily in montane areas (>100 m above sea level) in Aniakchak National Monument and Preserve (Aniakchak NMP), Katmai National Park and Preserve (Katmai NPP), and Lake Clark National Park and Preserve (Lake Clark NPP) in southwestern Alaska. Observers conducted 1,021 point...
Filter Total Items: 41
No results found.
Filter Total Items: 43
Unusual foraging observations associated with seabird die-offs in Alaska
We report the first documentation of off-water foraging by the Fork-tailed Storm-Petrel Oceanodroma furcata and Short-tailed Shearwater Ardenna tenuirostris, a behavior not previously documented in any member of the families Hydrobatidae or Procellariidae. Over a two-week period in September 2016, we regularly observed individuals of these species over land on an extensive intertidal...
Authors
Bryce W. Robinson, Lucas H. DeCicco, James H. Johnson, Daniel R. Ruthrauff
Montane-breeding bird distribution and abundance across national parks of southwestern Alaska
Between 2004 and 2008, biologists conducted an inventory of breeding birds during May–June primarily in montane areas (>100 m above sea level) in Aniakchak National Monument and Preserve (Aniakchak NMP), Katmai National Park and Preserve (Katmai NPP), and Lake Clark National Park and Preserve (Lake Clark NPP) in southwestern Alaska. Observers conducted 1,021 point counts along 169...
Authors
Courtney L. Amundson, Colleen M. Handel, Daniel R. Ruthrauff, T. Lee Tibbitts, Robert E. Gill
Energetic solutions of Rock Sandpipers to harsh winter conditions rely on prey quality
Rock Sandpipers Calidris ptilocnemis have the most northerly non-breeding distribution of any shorebird in the Pacific Basin (upper Cook Inlet, Alaska; 61°N, 151°W). In terms of freezing temperatures, persistent winds and pervasive ice, this site is the harshest used by shorebirds during winter. We integrated physiological, metabolic, behavioural and environmental aspects of the non...
Authors
Daniel R. Ruthrauff, Anne Dekinga, Robert E. Gill, Theunis Piersma
Normalized difference vegetation index as an estimator for abundance and quality of avian herbivore forage in arctic Alaska
Tools that can monitor biomass and nutritional quality of forage plants are needed to understand how arctic herbivores may respond to the rapidly changing environment at high latitudes. The Normalized Difference Vegetation Index (NDVI) has been widely used to assess changes in abundance and distribution of terrestrial vegetative communities. However, the efficacy of NDVI to measure...
Authors
Kyle R. Hogrefe, Vijay P. Patil, Daniel R. Ruthrauff, Brandt W. Meixell, Michael Budde, Jerry W. Hupp, David Ward
A global threats overview for Numeniini populations: synthesising expert knowledge for a group of declining migratory birds.
The Numeniini is a tribe of 13 wader species (Scolopacidae, Charadriiformes) of which seven are Near Threatened or globally threatened, including two Critically Endangered. To help inform conservation management and policy responses, we present the results of an expert assessment of the threats that members of this taxonomic group face across migratory flyways. Most threats are...
Authors
James W. Pearce-Higgins, Daniel T. Brown, David C. Douglas, José A. Alves, Mariagrazia Bellio, Pierrick Bocher, Graeme M. Buchannan, Robert P. Clay, Jesse R. Conklin, Nicola Crockford, Peter Dann, Jaanus Elts, Christian Friis, Richard H. Fuller, Jennifer A. Gill, Ken Gosbell, James H. Johnson, Rocio Marquez-Ferrando, José A. Masero, David S. Melville, Spike Millington, Clive D.T. Minton, Taej Mundkur, Erika Nol, Hannes Pehlak, Theunis Piersma, Danny I. Rogers, Daniel R. Ruthrauff, Nathan R. Senner, Junid Nazeer Shah, Rob D. Sheldon, Sergej A. Soloviev, Pavel S. Tomkovich, Yvonne I. Verkuil
Ways to be different: Foraging adaptations that facilitate higher intake rates in a northerly wintering shorebird compared with a low-latitude conspecific
At what phenotypic level do closely related subspecies that live in different environments differ with respect to food detection, ingestion and processing? This question motivated an experimental study on rock sandpipers (Calidris ptilocnemis). The species' nonbreeding range spans 20 deg of latitude, the extremes of which are inhabited by two subspecies: C. p. ptilocnemis that winters...
Authors
Daniel R. Ruthrauff, Robert E. Gill, Anne Dekinga, Jan A. van Gils, Theunis Piersma
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government