Search Results - "JOHNSON, JEFF A."

State of the world's raptors: Distributions, threats, and conservation recommendations by McClure, Christopher J.W., Westrip, James R.S., Johnson, Jeff A., Schulwitz, Sarah E., Virani, Munir Z., Davies, Robert, Symes, Andrew, Wheatley, Hannah, Thorstrom, Russell, Amar, Arjun, Buij, Ralph, Jones, Victoria R., Williams, Nick P., Buechley, Evan R., Butchart, Stuart H.M.

“…Raptors provide critical ecosystem services, yet there is currently no systematic, global synthesis of their conservation status or threats. We review the…”
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Contrasting Genomic Diversity and Inbreeding Levels Among Two Closely Related Falcon Species With Overlapping Geographic Distributions by Martin, Audrey M, Johnson, Jeff A, Berry, Robert B, Carling, Matthew, Martínez Del Rio, Carlos

“…Genomic resources are valuable to examine historical demographic patterns and their effects to better inform management and conservation of threatened species…”
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A supergene underlies linked variation in color and morphology in a Holarctic songbird by Funk, Erik R., Mason, Nicholas A., Pálsson, Snæbjörn, Albrecht, Tomáš, Johnson, Jeff A., Taylor, Scott A.

“…The genetic architecture of a phenotype can have considerable effects on the evolution of a trait or species. Characterizing genetic architecture provides…”
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Migratory movements of Atlantic puffins Fratercula arctica naumanni from high Arctic Greenland by Burnham, Kurt K, Burnham, Jennifer L, Johnson, Jeff A, Huffman, Abby

“…Although the Atlantic puffin Fratercula arctica is well studied throughout its temperate and low Arctic breeding range, few have studied the species in its far…”
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Specific alleles at immune genes, rather than genome-wide heterozygosity, are related to immunity and survival in the critically endangered Attwater's prairie-chicken by Bateson, Zachary W., Hammerly, Susan C., Johnson, Jeff A., Morrow, Michael E., Whittingham, Linda A., Dunn, Peter O.

“…The negative effects of inbreeding on fitness are serious concerns for populations of endangered species. Reduced fitness has been associated with lower…”
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Molecular data support Bombus sonorus and Bombus pensylvanicus (Hymenoptera, Apidae) as distinct species by Beckham, Jessica L, Johnson, Jeff A, Pfau, Russell S

“…Despite their distinctive banding patterns, setal coloration, and geographic ranges, the Sonoran bumble bee ( Bombus sonorus Say, 1837) and the American bumble…”
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Morphological measurements of Atlantic puffin (Fratercula arctica naumanni) in High-Arctic Greenland by Burnham, Kurt K., Burnham, Jennifer L., Johnson, Jeff A.

“…Morphological measurements of 45 adult Atlantic puffins Fratercula arctica were collected in High-Arctic Greenland between 2010 and 2016. Measurements support…”
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Whole‐genome survey reveals extensive variation in genetic diversity and inbreeding levels among peregrine falcon subspecies by Johnson, Jeff A., Athrey, Giridhar, Anderson, Clifford M., Bell, Douglas A., Dixon, Andrew, Kumazawa, Yoshinori, Maechtle, Tom, Meeks, Garrett W., Mindell, David, Nakajima, Keiya, Novak, Ben, Talbot, Sandra, White, Clayton, Zhan, Xiangjiang

“…In efforts to prevent extinction, resource managers are often tasked with increasing genetic diversity in a population of concern to prevent inbreeding…”
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Systematic Review of Drug Therapy to Delay or Prevent Type 2 Diabetes by Padwal, Raj, Majumdar, Sumit R, Johnson, Jeff A, Varney, Janice, McAlister, Finlay A

“…OBJECTIVE:--To systematically review the evidence for the prevention of type 2 diabetes by pharmacological therapies. RESEARCH DESIGN AND METHODS--Randomized…”
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Genetics of plumage color in the Gyrfalcon (Falco rusticolus): analysis of the melanocortin-1 receptor gene by Johnson, Jeff A, Ambers, Angie D, Burnham, Kurt K

“…Genetic variation at the melanocortin-1 receptor (MC1R) gene is correlated with melanin color variation in a few reported vertebrates. In Gyrfalcon (Falco…”
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First record of horned puffin in the North Atlantic and tufted puffin in High Arctic Greenland by Burnham, Kurt K., Burnham, Jennifer L., Johnson, Jeff A., Konkel, Bridger W., Stephens, Jack, Badgett, Hannah

“…An accelerating decrease in summer sea-ice extent in the Arctic Ocean and Canadian Arctic Archipelago (North-west Passage) is predicted to increase the…”
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Molecular systematics of the caracaras and allies (Falconidae: Polyborinae) inferred from mitochondrial and nuclear sequence data by FUCHS, JÉRÔME, JOHNSON, JEFF A., MINDELL, DAVID P.

“…The Polyborinae is the most diverse subfamily of the Falconidae in terms of both morphology and behaviour, and includes falconet‐shaped birds (Spiziapteryx),…”
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Long-term survival despite low genetic diversity in the critically endangered Madagascar fish-eagle by Johnson, Jeff A, Tingay, Ruth E, Culver, Melanie, Hailer, Frank, Clarke, Michele L, Mindell, David P

“…The critically endangered Madagascar fish-eagle (Haliaeetus vociferoides) is considered to be one of the rarest birds of prey globally and at significant risk…”
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Pliocene diversification within the South American Forest falcons (Falconidae: Micrastur) by Fuchs, Jérôme, Chen, Steven, Johnson, Jeff A., Mindell, David P.

“…[Display omitted] ► Micrastur forest-falcons diversified during the Pliocene. ► The seven Micrastur species cluster in two species groups in agreement with…”
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It's not too late for the harpy eagle (Harpia harpyja): high levels of genetic diversity and differentiation can fuel conservation programs by Lerner, Heather R L, Johnson, Jeff A, Lindsay, Alec R, Kiff, Lloyd F, Mindell, David P

“…The harpy eagle (Harpia harpyja) is the largest Neotropical bird of prey and is threatened by human persecution and habitat loss and fragmentation. Current…”
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Rapid diversification of falcons (Aves: Falconidae) due to expansion of open habitats in the Late Miocene by Fuchs, Jérôme, Johnson, Jeff A., Mindell, David P.

“…[Display omitted] •Polihierax is not monophyletic.•Falcons diversified at the end of the Miocene.•Falco experienced an increase in diversification rate with…”
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Contrasting patterns of mitochondrial and microsatellite population structure in fragmented populations of greater prairie-chickens by Johnson, J.A, Toepfer, J.E, Dunn, P.O

“…Greater prairie‐chickens (Tympanuchus cupido pinnatus) were once found throughout the tallgrass prairie of midwestern North America but over the last century…”
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Phylogenomics of the extinct Heath Hen provides support for sex-biased introgression among extant prairie grouse by Johnson, Jeff A., Novak, Ben, Athrey, Giridhar, Sharo, Andrew G., Chase, Tom, Toepfer, John

“…[Display omitted] •An annotated whole genome assembly was generated for the Greater Prairie-chicken.•Phylogenetic placement of the extinct Heath Hen helped…”
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The use of genetics for the management of a recovering population: temporal assessment of migratory peregrine falcons in North America by Johnson, Jeff A, Talbot, Sandra L, Sage, George K, Burnham, Kurt K, Brown, Joseph W, Maechtle, Tom L, Seegar, William S, Yates, Michael A, Anderson, Bud, Mindell, David P

“…Our ability to monitor populations or species that were once threatened or endangered and in the process of recovery is enhanced by using genetic methods to…”
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Loss of Genetic Variation in Greater Prairie Chickens Following a Population Bottleneck in Wisconsin, U.S.A by Bellinger, M. Renee, Johnson, Jeff A., Toepfer, John, Dunn, Peter

“…Over the last century, populations of the Greater Prairie Chicken (Tympanuchus cupido) have declined or gone extinct throughout midwestern North America. In…”
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