TRUNK REITERATION PROMOTES EPIPHYTES AND WATER STORAGE IN AN OLD-GROWTH REDWOOD FOREST CANOPY

2007 ◽  
Vol 77 (3) ◽  
pp. 335-359 ◽  
Author(s):  
Stephen C. Sillett ◽  
Robert Van Pelt
Keyword(s):  
Forest Canopy ◽  
Water Storage ◽  
Old Growth ◽  
Redwood Forest

scholarly journals Mosaics of canopy openness induced by tropical cyclones in lowland rain forests with contrasting management histories in northeastern Australia

2000 ◽  
Vol 16 (6) ◽  
pp. 883-894 ◽  
Author(s):  
SIMON J. GROVE ◽  
STEPHEN M. TURTON ◽  
DANNY T. SIEGENTHALER
Keyword(s):  
Forest Management ◽  
Forest Canopy ◽  
Canopy Openness ◽  
Old Growth ◽  
Lowland Rain Forest ◽  
Forest Sites ◽  
Local Topography ◽  
Marked Points ◽  
Impacted Site

Tropical Cyclone ‘Rona’ crossed the coast of the Daintree lowlands of northeastern Australia in 1999. This study reports on its impact on forest canopy openness at six lowland rain forest sites with contrasting management histories (old-growth, selectively logged and regrowth). Percentage canopy openness was calculated from individual hemispherical photographs taken from marked points below the forest canopy at nine plots per site 3–4 mo before the cyclone, and at the same points a month afterwards. Before the cyclone, when nine sites were visited, canopy openness in old-growth and logged sites was similar, but significantly higher in regrowth forest. After the cyclone, all six revisited sites showed an increase in canopy openness, but the increase was very patchy amongst plots and sites and varied from insignificant to severe. The most severely impacted site was an old-growth one, the least impacted a logged one. Although proneness to impact was apparently related to forest management history (old-growth being the most impacted), underlying local topography may have had an equally strong influence in this case. It was concluded that the likelihood of severe impact may be determined at the landscape-scale by the interaction of anthropogenic with meteorological, physiographic and biotic factors. In the long term, such interactions may caution against pursuing forest management in cyclone-prone areas.

Soil Organic Matter Processes in Old-Growth Redwood Forest Canopies

2010 ◽  
Vol 74 (1) ◽  
pp. 161-171 ◽  
Author(s):  
Heather A. Enloe ◽  
Sylvie A. Quideau ◽  
Robert C. Graham ◽  
Stephen C. Sillett ◽  
S.-W. Oh ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Old Growth ◽  
Forest Canopies ◽  
Redwood Forest

Arboreal Histosols in Old-Growth Redwood Forest Canopies, Northern California

2006 ◽  
Vol 70 (2) ◽  
pp. 408-418 ◽  
Author(s):  
Heather A. Enloe ◽  
Robert C. Graham ◽  
Stephen C. Sillett
Keyword(s):  
Northern California ◽  
Old Growth ◽  
Forest Canopies ◽  
Redwood Forest

Axial and radial water transport and internal water storage in tropical forest canopy trees

Oecologia ◽  
2003 ◽  
Vol 134 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Shelley James ◽  
Frederick Meinzer ◽  
Guillermo Goldstein ◽  
David Woodruff ◽  
Timothy Jones ◽  
...  
Keyword(s):  
Tropical Forest ◽  
Water Transport ◽  
Forest Canopy ◽  
Water Storage ◽  
Canopy Trees ◽  
Internal Water ◽  
Tropical Forest Canopy

Biomass and water storage dynamics of epiphytes in old-growth and secondary montane cloud forest stands in Costa Rica

Plant Ecology ◽  
2006 ◽  
Vol 193 (2) ◽  
pp. 171-184 ◽  
Author(s):  
Lars Köhler ◽  
Conrado Tobón ◽  
K. F. Arnoud Frumau ◽  
L. A. (Sampurno) Bruijnzeel
Keyword(s):  
Costa Rica ◽  
Cloud Forest ◽  
Water Storage ◽  
Forest Stands ◽  
Old Growth ◽  
Montane Cloud Forest

scholarly journals STAND-LEVEL HERBIVORY IN AN OLD-GROWTH CONIFER FOREST CANOPY

2006 ◽  
Vol 66 (4) ◽  
pp. 473-481 ◽  
Author(s):  
David C. Shaw ◽  
Kristina A. Ernest ◽  
H. Bruce Rinker ◽  
Margaret D. Lowman
Keyword(s):  
Forest Canopy ◽  
Conifer Forest ◽  
Old Growth

Patterns of seedling and overstory composition along a gradient of hurricane disturbance in an old-growth bottomland hardwood community

1999 ◽  
Vol 29 (1) ◽  
pp. 144-156 ◽  
Author(s):  
Loretta L Battaglia ◽  
Rebecca R Sharitz ◽  
Peter R Minchin
Keyword(s):  
Pinus Taeda ◽  
Forest Canopy ◽  
Rank Order ◽  
Woody Debris ◽  
Soil Disturbance ◽  
Bottomland Hardwood ◽  
Old Growth ◽  
Axis I ◽  
Pinus Taeda L ◽  
Order Increase

Disturbance patterns and species composition in the seedling and canopy layers were examined across the range of post-hurricane damage in an old-growth bottomland hardwood forest. Canopy coverage, tip-up number and area, snags, and coarse woody debris were quantified in plots along randomly oriented transects established in bottomland hardwood stands and mixed Pinus taeda L. - bottomland hardwood stands. Wilcoxon rank sum tests of these individual disturbance features indicated greater disturbance in plots containing the early successional species, Pinus taeda, than in mixed bottomland plots without it. Principal components analysis (PCA) using these features illustrated much overlap between the two assemblages and suggested a continuum of canopy and soil disturbance conditions from windthrows along axis I and a continuum of canopy disturbance due to snag formation along axis II. Woody seedlings and trees were inventoried in 30 plots spanning the range of disturbance. Seedling species richness exhibited a rank order increase along axis I. Floristic trends in both seedling and tree layers were significantly correlated with disturbance represented by PCA axis I scores. Removal from the canopy and lack of successful recruitment of Pinus taeda, a former canopy dominant, suggest that the hurricane has shifted this old-growth floodplain forest to a different successional state.

Vaired Effects of Clear-cut Logging on Predators and Their Habitat in Small Streams of the Cascade Mountains, Oregon

1981 ◽  
Vol 38 (2) ◽  
pp. 137-145 ◽  
Author(s):  
Michael L. Murphy ◽  
James D. Hall
Keyword(s):  
Forest Canopy ◽  
Deciduous Forest ◽  
Old Growth ◽  
Clear Cut ◽  
Stream Communities ◽  
Second Growth ◽  
Small Streams ◽  
Gradient Effects ◽  
Size Gradient ◽  
Lower Biomass

Assemblages of aquatic vertebrate and insect predators were inventoried in streams in old-growth and logged coniferous forests in the western Cascades of Oregon to assess effects of clear-cut logging on stream communities. Effects associated with logging depended on stream size, gradient, and time after harvest. Clear-cut sections where the stream was still exposed to sunlight (5–17 yr after logging) generally had greater biomass, density, and species richness of predators than old-growth (> 450-yr-old) forested sections. Increases were greatest in small (first-order), high gradient (10–16%) streams, where clear-cut sites had both greater periphyton production and coarser streambed sediment than old-growth sites of similar size and gradient. Effects on predators were mixed in larger, lower gradient streams, where clear-cut sites showed accumulation of sediment and relatively small increases in periphyton production. Second-growth logged sections (12–35 yr after logging), reshaded by deciduous forest canopy, had lower biomass of trout and fewer predator taxa than old-growth sites.Key words: trout, salamanders, insects, logging, sediment, periphyton, watershed management

scholarly journals Tree water storage and its diurnal dynamics related to sap flow and changes in stem volume in old-growth Douglas-fir trees

2007 ◽  
Vol 27 (2) ◽  
pp. 181-198 ◽  
Author(s):  
J. Cermak ◽  
J. Kucera ◽  
W. L. Bauerle ◽  
N. Phillips ◽  
T. M. Hinckley
Keyword(s):  
Sap Flow ◽  
Water Storage ◽  
Douglas Fir ◽  
Stem Volume ◽  
Old Growth ◽  
Diurnal Dynamics
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