Jack A Morgan

Summary

Affiliation: Agricultural Research Service
Country: USA

Publications

  1. ncbi request reprint C4 grasses prosper as carbon dioxide eliminates desiccation in warmed semi-arid grassland
    Jack A Morgan
    USDA ARS, Rangeland Resources Research Unit and Northern Plains Area, Fort Collins, Colorado 80526, USA
    Nature 476:202-5. 2011
  2. pmc Carbon dioxide enrichment alters plant community structure and accelerates shrub growth in the shortgrass steppe
    Jack A Morgan
    Rangeland Resources Research Unit, Agricultural Research Service, United States Department of Agriculture, Fort Collins, CO 80526, USA
    Proc Natl Acad Sci U S A 104:14724-9. 2007
  3. ncbi request reprint Water relations in grassland and desert ecosystems exposed to elevated atmospheric CO2
    J A Morgan
    Rangeland Resources Research Unit, USDA Agricultural Research Service, 1701 Centre Ave, 80526, Fort Collins, CO, USA
    Oecologia 140:11-25. 2004
  4. doi request reprint Elevated CO₂ does not offset greater water stress predicted under climate change for native and exotic riparian plants
    Laura G Perry
    Department of Biology, Colorado State University, Fort Collins, CO, USA
    New Phytol 197:532-43. 2013
  5. ncbi request reprint Soil and plant water relations determine photosynthetic responses of C3 and C4 grasses in a semi-arid ecosystem under elevated CO2
    Daniel R Lecain
    USDA ARS Rangeland Resources Research Unit, Crops Research Laboratory, 1701 Centre Avenue, Fort Collins, CO 80526, USA
    Ann Bot 92:41-52. 2003
  6. ncbi request reprint Contrasting effects of elevated CO2 and warming on nitrogen cycling in a semiarid grassland
    Feike A Dijkstra
    Rangeland Resources Research Unit, USDA ARS, Crops Research Laboratory, 1701 Centre Ave, Fort Collins, CO 80526, USA
    New Phytol 187:426-37. 2010
  7. doi request reprint Wetting and drying cycles drive variations in the stable carbon isotope ratio of respired carbon dioxide in semi-arid grassland
    Jee H Shim
    Department of Forest, Rangeland, and Watershed Stewardship, Colorado State University, Fort Collins, CO 80523, USA
    Oecologia 160:321-33. 2009
  8. ncbi request reprint Response of organic and inorganic carbon and nitrogen to long-term grazing of the shortgrass steppe
    Jean D Reeder
    Rangeland Resources Research Unit, USDA ARS, 1701 Centre Avenue, Fort Collins, Colorado 80526, USA
    Environ Manage 33:485-95. 2004
  9. doi request reprint Rhizosphere interactions, carbon allocation, and nitrogen acquisition of two perennial North American grasses in response to defoliation and elevated atmospheric CO2
    David J Augustine
    Agricultural Research Service, Rangeland Resources Research Unit, USDA, 1701 Centre Ave, Fort Collins, CO 80526, USA
    Oecologia 165:755-70. 2011
  10. ncbi request reprint UV radiation effects on plant growth and forage quality in a shortgrass steppe ecosystems
    Daniel G Milchunas
    Forest, Range, and Watershed Stewardship Department, Colorado State University, Fort Collins, CO 80523, USA
    Photochem Photobiol 79:404-10. 2004

Detail Information

Publications14

  1. ncbi request reprint C4 grasses prosper as carbon dioxide eliminates desiccation in warmed semi-arid grassland
    Jack A Morgan
    USDA ARS, Rangeland Resources Research Unit and Northern Plains Area, Fort Collins, Colorado 80526, USA
    Nature 476:202-5. 2011
    ..The results indicate that in a warmer, CO(2)-enriched world, both SWC and productivity in semi-arid grasslands may be higher than previously expected...
  2. pmc Carbon dioxide enrichment alters plant community structure and accelerates shrub growth in the shortgrass steppe
    Jack A Morgan
    Rangeland Resources Research Unit, Agricultural Research Service, United States Department of Agriculture, Fort Collins, CO 80526, USA
    Proc Natl Acad Sci U S A 104:14724-9. 2007
    ....
  3. ncbi request reprint Water relations in grassland and desert ecosystems exposed to elevated atmospheric CO2
    J A Morgan
    Rangeland Resources Research Unit, USDA Agricultural Research Service, 1701 Centre Ave, 80526, Fort Collins, CO, USA
    Oecologia 140:11-25. 2004
    ..For landscape scale predictions, this analysis calls for a clear distinction between biomass responses due to direct CO2 effects on photosynthesis and those indirect CO2 effects via soil moisture as documented here...
  4. doi request reprint Elevated CO₂ does not offset greater water stress predicted under climate change for native and exotic riparian plants
    Laura G Perry
    Department of Biology, Colorado State University, Fort Collins, CO, USA
    New Phytol 197:532-43. 2013
    ..Our results suggest that increased aridity will reduce riparian seedling growth despite elevated CO₂, and will reduce growth more for native Salix and Populus than for drought-tolerant exotic species...
  5. ncbi request reprint Soil and plant water relations determine photosynthetic responses of C3 and C4 grasses in a semi-arid ecosystem under elevated CO2
    Daniel R Lecain
    USDA ARS Rangeland Resources Research Unit, Crops Research Laboratory, 1701 Centre Avenue, Fort Collins, CO 80526, USA
    Ann Bot 92:41-52. 2003
    ..These results suggest that photosynthetic responses of C3 and C4 grasses in this semi-arid ecosystem will be driven primarily by the effect of elevated CO2 on plant and soil water relations...
  6. ncbi request reprint Contrasting effects of elevated CO2 and warming on nitrogen cycling in a semiarid grassland
    Feike A Dijkstra
    Rangeland Resources Research Unit, USDA ARS, Crops Research Laboratory, 1701 Centre Ave, Fort Collins, CO 80526, USA
    New Phytol 187:426-37. 2010
    ..Our results indicate a more closed N cycle under elevated CO(2) and a more open N cycle with warming, which could affect long-term N retention, plant productivity, and C sequestration in this semiarid grassland...
  7. doi request reprint Wetting and drying cycles drive variations in the stable carbon isotope ratio of respired carbon dioxide in semi-arid grassland
    Jee H Shim
    Department of Forest, Rangeland, and Watershed Stewardship, Colorado State University, Fort Collins, CO 80523, USA
    Oecologia 160:321-33. 2009
    ..Stable isotopic composition of respiration in semi-arid ecosystems is more temporally and spatially variable than in mesic ecosystems owing to dynamic aspects of pulse precipitation episodes and biological drivers...
  8. ncbi request reprint Response of organic and inorganic carbon and nitrogen to long-term grazing of the shortgrass steppe
    Jean D Reeder
    Rangeland Resources Research Unit, USDA ARS, 1701 Centre Avenue, Fort Collins, Colorado 80526, USA
    Environ Manage 33:485-95. 2004
    ..These results emphasize the importance in semiarid and arid ecosystems of including inorganic C in assessments of the mass and distribution of plant-soil C and in evaluations of the impacts of grazing management on C sequestration...
  9. doi request reprint Rhizosphere interactions, carbon allocation, and nitrogen acquisition of two perennial North American grasses in response to defoliation and elevated atmospheric CO2
    David J Augustine
    Agricultural Research Service, Rangeland Resources Research Unit, USDA, 1701 Centre Ave, Fort Collins, CO 80526, USA
    Oecologia 165:755-70. 2011
    ....
  10. ncbi request reprint UV radiation effects on plant growth and forage quality in a shortgrass steppe ecosystems
    Daniel G Milchunas
    Forest, Range, and Watershed Stewardship Department, Colorado State University, Fort Collins, CO 80523, USA
    Photochem Photobiol 79:404-10. 2004
    ..Grazing treatment had large positive effects on current-year productivity only in the wet year and some small positive effects on quality in both wet and dry years. Interactions between UV and grazing treatment were not observed...
  11. ncbi request reprint Projected ecosystem impact of the Prairie Heating and CO2 Enrichment experiment
    William J Parton
    Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO 80523 1499, USA
    New Phytol 174:823-34. 2007
    ..Model results are consistent with empirical field data suggesting that water and nitrogen will be critical drivers of the semiarid grassland response to global change...
  12. ncbi request reprint Ecology. Looking beneath the surface
    Jack A Morgan
    USDA ARS Rangeland Resources Research Unit, 1701 Centre Avenue, Fort Collins, CO 80526, USA
    Science 298:1903-4. 2002
  13. ncbi request reprint Invasive forb benefits from water savings by native plants and carbon fertilization under elevated CO2 and warming
    Dana M Blumenthal
    USDA ARS, Rangeland Resources Research Unit, 1701 Centre Avenue, Fort Collins, CO, 80526, USA
    New Phytol 200:1156-65. 2013
    ..Water-limited ecosystems may therefore be particularly vulnerable to invasion as CO2 increases...
  14. doi request reprint Next generation of elevated [CO2] experiments with crops: a critical investment for feeding the future world
    Elizabeth A Ainsworth
    US Department of Agriculture, Agricultural Research Service and Photosynthesis Research Unit, Urbana, IL, USA
    Plant Cell Environ 31:1317-24. 2008
    ..This is necessary if we are to realize the potential for yield gains in the future...