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North American caribou (Rangifer tarandus) herds commonly exhibit little nuclear genetic differentiation among adjacent herds, although available evidence supports strong demographic separation, even for herds with seasonal range overlap. During 1997–2003, we studied the Mentasta and Nelchina caribou herds in south-central Alaska using radiotelemetry to determine individual movements and range overlap during the breeding season, and nuclear and mitochondrial DNA (mtDNA) markers to assess levels of genetic differentiation. Although the herds were considered discrete because females calved in separate regions, individual movements and breeding-range overlap in some years provided opportunity for male-mediated gene...
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Nutritional restrictions in winter may reduce the availability of protein for reproduction and survival in northern ungulates. We refined a technique that uses recently voided excreta on snow to assess protein status in wild caribou (Rangifer tarandus) in late winter. Our study was the first application of this non-invasive, isotopic approach to assess protein status of wild caribou by determining dietary and endogenous contributions of nitrogen (N) to urinary urea. We used isotopic ratios of N (?15N) in urine and fecal samples to estimate the proportion of urea N derived from body N (p-UN) in pregnant, adult females of the Chisana Herd, a small population that ranged across the Alaska-Yukon border. We took advantage...
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Studies moose or Alces alces, caribou or Rangifer tarandus and grizzly bear or Ursus arctos distribution in relation to road traffic in Denali National Park, Alaska. Development of wildlife monitoring system using 19 landscape level viewsheds stratified into four sections based on decreasing traffic along the road corridor; Absence of traffic avoidance patterns for caribou and grizzly bears.
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....
This data set contains imagery from the National Agriculture Imagery Program (NAIP). The NAIP program is administered by USDA FSA and has been established to support two main FSA strategic goals centered on agricultural production. These are, increase stewardship of America's natural resources while enhancing the environment, and to ensure commodities are procured and distributed effectively and efficiently to increase food security. The NAIP program supports these goals by acquiring and providing ortho imagery that has been collected during the agricultural growing season in the U.S. The NAIP ortho imagery is tailored to meet FSA requirements and is a fundamental tool used to support FSA farm and conservation programs....


map background search result map search result map An isotopic approach to measuring nitrogen balance in caribou Population characteristics, space use and habitat selection of two non-migratory caribou herds in central Alaska, 1994 - 2009 Moose, Caribou, and Grizzly Bear Distribution in Relation to Road Traffic in Denali National Park, Alaska Population dynamics of interior and southwest Alaska caribou herds Range overlap and individual movements during breeding season influence genetic relationships of caribou herds in south-central Alaska FSA 10:1 NAIP Imagery m_4211101_nw_12_1_20150620_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211103_sw_12_1_20150626_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211108_ne_12_1_20150810_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211110_nw_12_1_20150620_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211111_ne_12_1_20150626_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211113_nw_12_1_20150629_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211118_ne_12_1_20150626_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211121_nw_12_1_20150629_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211122_se_12_1_20150703_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211127_nw_12_1_20150626_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211131_se_12_1_20150703_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4311163_sw_12_1_20150810_20151207 3.75 x 3.75 minute JPEG2000 from The National Map USGS US Topo 7.5-minute map for Haystack Mountain, ID 2017 USGS 1:62500-scale Quadrangle for Caribou, ME 1953 FSA 10:1 NAIP Imagery m_4211101_nw_12_1_20150620_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211103_sw_12_1_20150626_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211108_ne_12_1_20150810_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211110_nw_12_1_20150620_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211111_ne_12_1_20150626_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211113_nw_12_1_20150629_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211118_ne_12_1_20150626_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211121_nw_12_1_20150629_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211122_se_12_1_20150703_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211127_nw_12_1_20150626_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4211131_se_12_1_20150703_20151207 3.75 x 3.75 minute JPEG2000 from The National Map FSA 10:1 NAIP Imagery m_4311163_sw_12_1_20150810_20151207 3.75 x 3.75 minute JPEG2000 from The National Map USGS US Topo 7.5-minute map for Haystack Mountain, ID 2017 USGS 1:62500-scale Quadrangle for Caribou, ME 1953 Moose, Caribou, and Grizzly Bear Distribution in Relation to Road Traffic in Denali National Park, Alaska Range overlap and individual movements during breeding season influence genetic relationships of caribou herds in south-central Alaska An isotopic approach to measuring nitrogen balance in caribou Population characteristics, space use and habitat selection of two non-migratory caribou herds in central Alaska, 1994 - 2009 Population dynamics of interior and southwest Alaska caribou herds