Affiliation: Los Alamos National Laboratory
- The interdependence of mechanisms underlying climate-driven vegetation mortalityNate G McDowell
Los Alamos National Laboratory, Los Alamos, NM 87545, USA
Trends Ecol Evol 26:523-32. 2011..Here, we outline the observations and experiments needed to test this interdependence and to improve simulations of this emergent global phenomenon...
- Environmental sensitivity of gas exchange in different-sized treesNate G McDowell
Los Alamos National Laboratory, MS D462, Los Alamos, NM, 87545, USA
Oecologia 145:9-20. 2005..The results also imply that the impacts of climate change on the growth and physiology of forest trees will vary depending on the age and size of the forest...
- Homeostatic maintenance of ponderosa pine gas exchange in response to stand density changesNate G McDowell
Los Alamos National Laboratory, Earth and Environmental Sciences Division, MS J495, Los Alamos, New Mexico 87545, USA
Ecol Appl 16:1164-82. 2006..e., greater absolute BAI during drought; however, trees with high A(l):A(s) in low basal area stands also exhibited the greatest sensitivity to drought, i.e., greater relative decline in BAI...
- Mechanisms of plant survival and mortality during drought: why do some plants survive while others succumb to drought?Nate McDowell
Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
New Phytol 178:719-39. 2008....
- A dynamic soil chamber system coupled with a tunable diode laser for online measurements of delta13C, delta18O, and efflux rate of soil-respired CO2Heath H Powers
Earth and Environmental Sciences Division, MS J495, Los Alamos National Laboratory, Los Alamos, NM 87544, USA
Rapid Commun Mass Spectrom 24:243-53. 2010..Global Change Biol. 2008; 14: 2178). The soil chamber coupled with the TDL was found to be an effective method for capturing soil CO(2) efflux and its stable isotope composition at high temporal frequency...
- Assessing uncertainties in a second-generation dynamic vegetation model caused by ecological scale limitationsRosie Fisher
Earth and Environmental Science Division, Los Alamos National Laboratory, Los Alamos, NM, USA
New Phytol 187:666-81. 2010..We conclude that demographic processes represent a large source of uncertainty in DGVM predictions...
- A new measurement technique reveals rapid post-illumination changes in the carbon isotope composition of leaf-respired CO2Margaret M Barbour
Landcare Research, PO Box 69, Lincoln 8251, New Zealand
Plant Cell Environ 30:469-82. 2007..The strong (13)C enrichment that followed a high light-to-dark transition coincided with high respiration rates, suggesting that so-called light-enhanced dark respiration (LEDR) is fed by (13)C-enriched metabolites...
- An investigation of hydraulic limitation and compensation in large, old Douglas-fir treesNate G McDowell
Department of Forest Science, Oregon State University, Corvallis, OR 97331, USA
Tree Physiol 22:763-74. 2002..However, compensation may have a cost; for example, the greater DeltaPsi of the largest trees was associated with smaller tracheid diameters and increased sapwood cavitation, which may have a negative feedback on kl and gs...
- Canopy and hydraulic conductance in young, mature and old Douglas-fir treesNathan Phillips
Geography Department, Boston University, Boston, MA 02215, USA
Tree Physiol 22:205-11. 2002..A hydraulic mass balance suggests that greater sapwood conductivity in 60-m trees compared with 32- and 15-m trees is a likely cause for the departure of the above rankings from those predicted by height and leaf-to-sapwood area ratio...
- A new measurement technique reveals temporal variation in delta18O of leaf-respired CO2Margaret M Barbour
Landcare Research, PO Box 69, Lincoln 8512, New Zealand
Plant Cell Environ 30:456-68. 2007....