Alexander K Prichard

• An Ongoing Shift in Mammalian Nest Predators of Yellow-billed Loons in Arctic Alaska

  Open Access•Julie P Parrett, Alexander K Prichard et al.•ARTICLE•ARCTIC•2023

  Incluir item

  The Coastal Plain of northern Alaska is an important nesting area for a variety of avian species, where the productivity of ground-nesting species can be strongly influenced by nest predators. Recently, the density of red foxes (Vulpes vulpes) has increased in many areas of the Arctic, likely because of climate warming as well as the availability of anthropogenic food sources during winter. In areas where they occur sympatrically, red foxes can o…

• An Ongoing Shift in Mammalian Nest Predators of Yellow-billed Loons in Arctic Alaska

  Open Access•Julie P Parrett, Alexander K Prichard et al.•ARTICLE•ARCTIC•2022

  Incluir item

  The Coastal Plain of northern Alaska is an important nesting area for a variety of avian species, where the productivity of ground-nesting species can be strongly influenced by nest predators. Recently, the density of red foxes (Vulpes vulpes) has increased in many areas of the Arctic, likely because of climate warming as well as the availability of anthropogenic food sources during winter. In areas where they occur sympatrically, red foxes can o…

• The Effect of Traffic Levels on the Distribution and Behaviour of Calving Caribou in an Arctic Oilfield

  Open Access•Alexander K Prichard, Joseph H Welch et al.•ARTICLE•ARCTIC•2022

  Incluir item

  Caribou are the most abundant large terrestrial mammals in Arctic Alaska, providing important cultural and subsistence resource values for local communities. As oil and gas development expands across the Arctic Coastal Plain of northern Alaska, understanding the potential impacts on caribou and improving associated mitigation measures are a crucial focus of applied research. One consistently observed impact in northern Alaska is displacement of m…

• Effects of a Hazing-Light System on Migration and Collision Avoidance of Eiders at an Artificial Oil-Production Island, Arctic Alaska

  Open Access•Robert H Day, Alexander K Prichard et al.•ARTICLE•ARCTIC•2017

  Incluir item

  During migration, Common and King Eiders (Somateria mollissima and S. spectabilis) cross the Beaufort and Chukchi Seas of Arctic Alaska. Because they may become attracted to lights, eiders are susceptible to collision with structures, including offshore oil facilities. We used ornithological radar in 2001 – 04 to characterize the behavior of eiders migrating past Northstar Island, an oil-production island near Prudhoe Bay, Alaska, and to assess t…

• Effects of Gas Flaring on the Behavior of Night-migrating Birds at an Artificial Oil-production Island, Arctic Alaska

  Open Access•Robert H Day, John R Rose et al.•ARTICLE•ARCTIC•2015

  Incluir item

  We studied movement rates and the general flight behavior of bird flocks seen on radar and recorded visually at Northstar Island, Arctic Alaska, from 13 to 27 September 2002. Most of this period (13 – 19 and 21 – 27 September) had no gas-flaring events, but a major gas-flaring event occurred on the night of 20 September. Movement rates of targets on radar and of bird flocks recorded visually in the first ~50% – 60% of the night were much lower du…

• Distribution and Movements of the Teshekpuk Caribou Herd 1990–2005

  Open Access•Brian T Person, Alex K Prichard et al.•ARTICLE•ARCTIC•2009

  Incluir item

  Four caribou (Rangifer tarandus grantii) herds calve on the North Slope of Alaska, three of which have been exposed to little or no resource development. We present 15 years of baseline data on the distribution and movements of 72 satellite-collared and 10 GPS-collared caribou from the Teshekpuk caribou herd (TCH) that have had little to no exposure to oil and gas activities. Fixed-kernel home range analyses of collared caribou revealed that calv…

• Distribution and Movements of the Teshekpuk Caribou Herd 1990–2005

  Open Access•Brian T Person, Alex K Prichard et al.•ARTICLE•ARCTIC•2009

  Incluir item

  Four caribou (Rangifer tarandus grantii) herds calve on the North Slope of Alaska, three of which have been exposed to little or no resource development. We present 15 years of baseline data on the distribution and movements of 72 satellite-collared and 10 GPS-collared caribou from the Teshekpuk caribou herd (TCH) that have had little to no exposure to oil and gas activities. Fixed-kernel home range analyses of collared caribou revealed that calv…

• Effects of Gas Flaring on the Behavior of Night-migrating Birds at an Artificial Oil-production Island, Arctic Alaska

  Open Access•Robert H Day, John R Rose et al.•ARTICLE•ARCTIC•2015

  Incluir item

  We studied movement rates and the general flight behavior of bird flocks seen on radar and recorded visually at Northstar Island, Arctic Alaska, from 13 to 27 September 2002. Most of this period (13 – 19 and 21 – 27 September) had no gas-flaring events, but a major gas-flaring event occurred on the night of 20 September. Movement rates of targets on radar and of bird flocks recorded visually in the first ~50% – 60% of the night were much lower du…

• Effects of a Hazing-Light System on Migration and Collision Avoidance of Eiders at an Artificial Oil-Production Island, Arctic Alaska

  Open Access•Robert H Day, Alexander K Prichard et al.•ARTICLE•ARCTIC•2017

  Incluir item

  During migration, Common and King Eiders (Somateria mollissima and S. spectabilis) cross the Beaufort and Chukchi Seas of Arctic Alaska. Because they may become attracted to lights, eiders are susceptible to collision with structures, including offshore oil facilities. We used ornithological radar in 2001 – 04 to characterize the behavior of eiders migrating past Northstar Island, an oil-production island near Prudhoe Bay, Alaska, and to assess t…

• An Ongoing Shift in Mammalian Nest Predators of Yellow-billed Loons in Arctic Alaska

  Open Access•Julie P Parrett, Alexander K Prichard et al.•ARTICLE•ARCTIC•2022

  Incluir item

  The Coastal Plain of northern Alaska is an important nesting area for a variety of avian species, where the productivity of ground-nesting species can be strongly influenced by nest predators. Recently, the density of red foxes (Vulpes vulpes) has increased in many areas of the Arctic, likely because of climate warming as well as the availability of anthropogenic food sources during winter. In areas where they occur sympatrically, red foxes can o…

• The Effect of Traffic Levels on the Distribution and Behaviour of Calving Caribou in an Arctic Oilfield

  Open Access•Alexander K Prichard, Joseph H Welch et al.•ARTICLE•ARCTIC•2022

  Incluir item

  Caribou are the most abundant large terrestrial mammals in Arctic Alaska, providing important cultural and subsistence resource values for local communities. As oil and gas development expands across the Arctic Coastal Plain of northern Alaska, understanding the potential impacts on caribou and improving associated mitigation measures are a crucial focus of applied research. One consistently observed impact in northern Alaska is displacement of m…

• An Ongoing Shift in Mammalian Nest Predators of Yellow-billed Loons in Arctic Alaska

  Open Access•Julie P Parrett, Alexander K Prichard et al.•ARTICLE•ARCTIC•2023

  Incluir item

  The Coastal Plain of northern Alaska is an important nesting area for a variety of avian species, where the productivity of ground-nesting species can be strongly influenced by nest predators. Recently, the density of red foxes (Vulpes vulpes) has increased in many areas of the Arctic, likely because of climate warming as well as the availability of anthropogenic food sources during winter. In areas where they occur sympatrically, red foxes can o…

Arctic (6 obras) · Biology (6 obras) · Geography (6 obras) · Ecology (5 obras) · Fishery (5 obras) · Ecology (4 obras) · Indigenous Studies and Ecology (4 obras) · Avian ecology and behavior (3 obras) · Environmental Science (3 obras) · Marine animal studies overview (3 obras)