Ponderosa pine forest structure and northern goshawk reproduction: Response to Beier et al. (2008)

2012 ◽  
Vol 36 (1) ◽  
pp. 147-152 ◽  
Author(s):  
Richard T. Reynolds ◽  
Douglas A. Boyce ◽  
Russell T. Graham
Keyword(s):  
Forest Structure ◽  
Ponderosa Pine ◽  
Pine Forest ◽  
Northern Goshawk ◽  
Ponderosa Pine Forest

scholarly journals UAV ‐derived estimates of forest structure to inform ponderosa pine forest restoration

2019 ◽  
Vol 6 (2) ◽  
pp. 181-197 ◽  
Author(s):  
Adam Belmonte ◽  
Temuulen Sankey ◽  
Joel A. Biederman ◽  
John Bradford ◽  
Scott J. Goetz ◽  
...  
Keyword(s):  
Forest Structure ◽  
Ponderosa Pine ◽  
Forest Restoration ◽  
Pine Forest ◽  
Ponderosa Pine Forest

Modeling Ecological Restoration Effects on Ponderosa Pine Forest Structure

2001 ◽  
Vol 9 (4) ◽  
pp. 421-431 ◽  
Author(s):  
W. Wallace Covington ◽  
Peter Z. Fule ◽  
Stephen C. Hart ◽  
Robert P. Weaver
Keyword(s):  
Ecological Restoration ◽  
Forest Structure ◽  
Ponderosa Pine ◽  
Pine Forest ◽  
Ponderosa Pine Forest

scholarly journals Interactive effects of historical logging and fire exclusion on ponderosa pine forest structure in the northern Rockies

2010 ◽  
Vol 20 (7) ◽  
pp. 1851-1864 ◽  
Author(s):  
Cameron Naficy ◽  
Anna Sala ◽  
Eric G. Keeling ◽  
Jon Graham ◽  
Thomas H. DeLuca
Keyword(s):  
Forest Structure ◽  
Ponderosa Pine ◽  
Pine Forest ◽  
Interactive Effects ◽  
Fire Exclusion ◽  
Northern Rockies ◽  
Ponderosa Pine Forest

Lick Creek historic photographic series: a century of change in a ponderosa pine forest in western Montana, US

2018 ◽  
Author(s):  
Sharon M. Hood ◽  
Duncan C. Lutes ◽  
Justin S. Crotteau ◽  
Christopher R. Keyes ◽  
Anna Sala ◽  
...  
Keyword(s):  
Ponderosa Pine ◽  
Pine Forest ◽  
Western Montana ◽  
Ponderosa Pine Forest

Lack of Vesicular-Arbuscular Mycorrhizal Inoculum in a Ponderosa Pine Forest

Ecology ◽  
1984 ◽  
Vol 65 (6) ◽  
pp. 1755-1759 ◽  
Author(s):  
D. A. Kovacic ◽  
T. V. St. John ◽  
M. I. Dyer
Keyword(s):  
Ponderosa Pine ◽  
Arbuscular Mycorrhizal ◽  
Pine Forest ◽  
Vesicular Arbuscular ◽  
Ponderosa Pine Forest

scholarly journals HAIRY WOODPECKER WINTER ROOST CHARACTERISTICS IN BURNED PONDEROSA PINE FOREST

2007 ◽  
Vol 119 (1) ◽  
pp. 43-52 ◽  
Author(s):  
KRISTIN A. COVERT-BRATLAND ◽  
TAD C. THEIMER ◽  
WILLIAM M. BLOCK
Keyword(s):  
Ponderosa Pine ◽  
Pine Forest ◽  
Ponderosa Pine Forest

scholarly journals Eddy covariance fluxes of acyl peroxy nitrates (PAN, PPN and MPAN) above a Ponderosa pine forest

2009 ◽  
Vol 9 (2) ◽  
pp. 615-634 ◽  
Author(s):  
G. M. Wolfe ◽  
J. A. Thornton ◽  
R. L. N. Yatavelli ◽  
M. McKay ◽  
A. H. Goldstein ◽  
...  
Keyword(s):  
Eddy Covariance ◽  
Sierra Nevada ◽  
Ponderosa Pine ◽  
Molecular Diffusion ◽  
Pine Forest ◽  
Chemical Production ◽  
Relative Contribution ◽  
Peroxy Nitrates ◽  
Ponderosa Pine Forest ◽  
Measurement Period

Abstract. During the Biosphere Effects on AeRosols and Photochemistry EXperiment 2007 (BEARPEX-2007), we observed eddy covariance (EC) fluxes of speciated acyl peroxy nitrates (APNs), including peroxyacetyl nitrate (PAN), peroxypropionyl nitrate (PPN) and peroxymethacryloyl nitrate (MPAN), above a Ponderosa pine forest in the western Sierra Nevada. All APN fluxes are net downward during the day, with a median midday PAN exchange velocity of −0.3 cm s−1; nighttime storage-corrected APN EC fluxes are smaller than daytime fluxes but still downward. Analysis with a standard resistance model shows that loss of PAN to the canopy is not controlled by turbulent or molecular diffusion. Stomatal uptake can account for 25 to 50% of the observed downward PAN flux. Vertical gradients in the PAN thermal decomposition (TD) rate explain a similar fraction of the flux, suggesting that a significant portion of the PAN flux into the forest results from chemical processes in the canopy. The remaining "unidentified" portion of the net PAN flux (~15%) is ascribed to deposition or reactive uptake on non-stomatal surfaces (e.g. leaf cuticles or soil). Shifts in temperature, moisture and ecosystem activity during the summer – fall transition alter the relative contribution of stomatal uptake, non-stomatal uptake and thermochemical gradients to the net PAN flux. Daytime PAN and MPAN exchange velocities are a factor of 3 smaller than those of PPN during the first two weeks of the measurement period, consistent with strong intra-canopy chemical production of PAN and MPAN during this period. Depositional loss of APNs can be 3–21% of the gross gas-phase TD loss depending on temperature. As a source of nitrogen to the biosphere, PAN deposition represents approximately 4–19% of that due to dry deposition of nitric acid at this site.

Sign in / Sign up

Export Citation Format

Share Document