Zobrazeno 1 - 10
of 99
pro vyhledávání: '"John D. Alexander"'
Autor:
Moa K. Kristiansson, Kiattichart Chartkunchand, Gustav Eklund, Odd M. Hole, Emma K. Anderson, Nathalie de Ruette, Magdalena Kamińska, Najeeb Punnakayathil, José E. Navarro-Navarrete, Stefan Sigurdsson, Jon Grumer, Ansgar Simonsson, Mikael Björkhage, Stefan Rosén, Peter Reinhed, Mikael Blom, Anders Källberg, John D. Alexander, Henrik Cederquist, Henning Zettergren, Henning T. Schmidt, Dag Hanstorp
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
High-precision measurements are useful to find isotopic shifts and electron correlation. Here the authors measure electron affinity and hyperfine splitting of atomic oxygen with higher precision than previous studies.
Externí odkaz:
https://doaj.org/article/1148f9adc2aa4be4b1a0871f4639fa17
Autor:
Linda L. Long, Frank K. Lake, Jaime L. Stephens, John D. Alexander, C. John Ralph, Jared D. Wolfe
Publikováno v:
Ecosphere, Vol 14, Iss 6, Pp n/a-n/a (2023)
Abstract Historically, wildfire and tribal burning practices played important roles in shaping ecosystems throughout the Klamath Siskiyou Bioregion of northern California and southern Oregon. Over the past several decades, there has been increased in
Externí odkaz:
https://doaj.org/article/a42a4e1e88414e56a830e0880cf58ca9
Publikováno v:
Avian Conservation and Ecology, Vol 15, Iss 2, p 2 (2020)
The effective conservation of birds requires knowledge of species-specific population dynamics. Yet these dynamics during migration and across age and sex categories are poorly understood for small birds. The goal of this study was to assess large-sc
Externí odkaz:
https://doaj.org/article/bbfee60028754a6597b628690393c004
Autor:
Sarahy Contreras Martínez, John D. Alexander, Christine A. Bishop, Jessica Castellanos-Labarcena, Karen E. Hodges, Sarah M. Rockwell, Michael A. Russello, A. Michael Bezener, Luis Morales, Kristen A. Mancuso, Matthias E. Bieber, Manuel Grosselet
Publikováno v:
Journal of Ornithology
Detailed information spanning the full annual cycle is lacking for most songbird populations. We examined breeding, migration, and non-breeding sites for the Yellow-breasted Chat (Icteria virens, chat). We deployed archival GPS tags and light-level g
Publikováno v:
ERJ Open Research, Vol 7, Iss 2 (2021)
ERJ Open Research
article-version (VoR) Version of Record
ERJ Open Research
article-version (VoR) Version of Record
Tidal breathing measurements can be used to identify changes in respiratory status. Structured light plethysmography (SLP) is a non-contact tidal breathing measurement technique. Lack of reference equations for SLP parameters makes clinical decision-
Autor:
Brian Wehausen, Pam R. Johnson, John D. Alexander, Sarah M. Rockwell, Andrea Kristof, Jenny K. Barnett, Jaime L. Stephens
Publikováno v:
Journal of Fish and Wildlife Management. 12:27-39
Sagebrush communities, covering millions of hectares in the western United States, are among our most imperiled ecosystems. They are challenged by various anthropogenic stressors, including invasion by nonnative grasses that degrade habitat quality a
Autor:
Kristen Mancuso, Karen E. Hodges, Manuel Grosselet, John E. Elliott, John D. Alexander, Michelle Zanuttig, Christine A. Bishop
Publikováno v:
Ecotoxicology (London, England). 31(2)
Mercury (Hg) is an environmental contaminant that can negatively impact human and wildlife health. For songbirds, Hg risk may be elevated near riparian habitats due to the transfer of methylmercury (MeHg) from aquatic to terrestrial food webs. We mea
Autor:
Zhiqiang Yang, Adam S. Hadley, Katherine E. Halstead, John D. Alexander, Matthew G. Betts, Jaime L. Stephens
Publikováno v:
Landscape Ecology. 34:1919-1935
The relative importance of habitat fragmentation versus loss on species richness has been much debated. However, recent findings that fragmentation effects are relatively weak may be an artifact of using human-classified vegetation rather than adopti
Autor:
Gary A. Falxa, Eric Cannizzaro, Marlene A. Wagner, David F. Whitacre, Simone A. Lupson-Cook, John D. Alexander, Daniel C. Barton, Nathaniel E. Seavy
Publikováno v:
Journal of Raptor Research. 55
Publikováno v:
Restoration Ecology. 29