Publications

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Publications Found: 21

Elevated CO2 Lowers Relative And Absolute Herbivore Density Across All Species Of A Scrub-Oak Forest
Stiling, P., Moon, D., Hunter, M., Colson, J., Rossi, A., Hymus, G., Drake, B.

The unabated increase in global atmospheric CO2 is expected to induce physiological changes in plants, including reduced foliar nitrogen, which are likely to affect herbivore densities. This study employs a field-based CO2 enrichment experiment at Kennedy Space Center, Florida, to examine plant-herbivore (insect) …


Journal: Oecologia, Volume 134 (1): 82-87 (2003). DOI: 10.1007/s00442-002-1075-5 Sites: US-KS2

Cross Validation Of Open-Top Chamber And Eddy Covariance Measurements Of Ecosystem CO2 Exchange In A Florida Scrub-Oak Ecosystem
Dore, S., Hymus, G. J., Johnson, D. P., Hinkle, C. R., Valentini, R., Drake, B. G.

Simultaneous measurements of net ecosystem CO2 exchange (NEE) were made in a Florida scrub-oak ecosystem in August 1997 and then every month between April 2000 to …


Journal: Global Change Biology, Volume 9 (1): 84-95 (2003). DOI: 10.1046/j.1365-2486.2003.00561.x Sites: US-KS1, US-KS2

Effects Of Elevated Atmospheric CO2 On Net Ecosystem CO2 Exchange Of A Scrub-Oak Ecosystem
Hymus, G. J., Johnson, D. P., Dore, S., Anderson, H. P., Ross Hinkle, C., Drake, B. G.

We report the results of a 2-year study of effects of the elevated (current ambient plus 350 μmol CO2 mol−1) atmospheric CO2 concentration (Ca) on net ecosystem CO2 exchange (NEE) of a scrub–oak ecosystem. The measurements were made in open-top chambers …


Journal: Global Change Biology, Volume 9 (12): 1802-1812 (2003). DOI: 10.1111/j.1365-2486.2003.00675.x Sites: US-KS2

Direct And Indirect Effects Of Elevated CO2 On Transpiration From Quercus Myrtifolia In A Scrub-Oak Ecosystem
Li, J., Dugas, W. A., Hymus, G. J., Johnson, D. P., Hinkle, C. R., Drake, B. G., Hungate, B. A.

Elevated atmospheric carbon dioxide (Ca) usually reduces stomatal conductance, but the effects on plant transpiration in the field are not well understood. Using …


Journal: Global Change Biology, Volume 9 (1): 96-105 (2003). DOI: 10.1046/j.1365-2486.2003.00557.x Sites: US-KS2

Acclimation Of Photosynthesis And Respiration To Elevated Atmospheric CO2 In Two Scrub Oaks
Hymus, G. J., Snead, T. G., Johnson, D. P., Hungate, B. A., Drake, B. G.

For two species of oak, we determined whether increasing atmospheric CO2 concentration (Ca) would decrease leaf mitochondrial respiration (R) directly, or indirectly owing to their growth in elevated Ca, or both. In particular, we tested whether acclimatory decreases in leaf-Rubisco …


Journal: Global Change Biology, Volume 8 (4): 317-328 (2002). DOI: 10.1046/j.1354-1013.2001.00472.x Sites: US-KS2

Elevated Atmospheric CO2 Stimulates Aboveground Biomass In A Fire-Regenerated Scrub-Oak Ecosystem
Dijkstra, P., Hymus, G., Colavito, D., Vieglais, D. A., Cundari, C. M., Johnson, D. P., Hungate, B. A., Hinkle, C. R., Drake, B. G.

The effect of elevated atmospheric CO2 concentration (Ca) on the aboveground biomass of three oak species, Quercus myrtifolia, Q. …


Journal: Global Change Biology, Volume 8 (1): 90-103 (2002). DOI: 10.1046/j.1354-1013.2001.00458.x Sites: US-KS2

Extensive Belowground Carbon Storage Supports Roots And Mycorrhizae In Regenerating Scrub Oaks
Langley, J. A., Drake, B. G., Hungate, B. A.

Portions of a regenerating scrub oak ecosystem were enclosed in open-top chambers and exposed to elevated CO2. The distinct 13C signal of the supplemental CO2 was used to trace the rate of C integration into various ecosystem …


Journal: Oecologia, Volume 131 (4): 542-548 (2002). DOI: 10.1007/s00442-002-0932-6 Sites: US-KS2

Elevated Atmospheric CO2 Lowers Herbivore Abundance, But Increases Leaf Abscission Rates
Stiling, P., Cattell, M., Moon, D. C., Rossi, A., Hungate, B. A., Hymus, G., Drake, B.

Increased levels of atmospheric carbon dioxide (CO2) are likely to affect the trophic relationships that exist between plants, their herbivores and the herbivores’ …


Journal: Global Change Biology, Volume 8 (7): 658-667 (2002). DOI: 10.1046/j.1365-2486.2002.00501.x Sites: US-KS2

Evapotranspiration And Soil Water Content In A Scrub-Oak Woodland Under Carbon Dioxide Enrichment
Hungate, B. A., Reichstein, M., Dijkstra, P., Johnson, D., Hymus, G., Tenhunen, J. D., Hinkle, C., Drake, B. G.

Leaf conductance often decreases in response to elevated atmospheric CO2 concentration (Ca) potentially leading to changes in hydrology. We describe the hydrological responses of Florida scrub oak to elevated Ca during an eight-month period two years after Ca


Journal: Global Change Biology, Volume 8 (3): 289-298 (2002). DOI: 10.1046/j.1365-2486.2002.00468.x Sites: US-KS2

Leaf Senescence Of Quercus Myrtifolia As Affected By Long-Term CO2 Enrichment In Its Native Environment
Li, J., Dijkstra, P., Hymus, G. J., Wheeler, R. M., Piastuch, W. C., Hinkle, C. R., Drake, B. G.

The long-term effects of elevated (ambient plus 350 μmol mol−1) atmospheric CO2 concentration (Ca) on the leaf senescence of Quercus …


Journal: Global Change Biology, Volume 6 (7): 727-733 (2000). DOI: 10.1046/j.1365-2486.2000.00347.x Sites: US-KS2