scholarly journals Species-area curve and distance-decay relationships indicate habitat thresholds of ectomycorrhizal fungi in an old-growth Pseudotsuga menziesii landscape

2018 ◽  
Vol 24 (6) ◽  
pp. 755-764 ◽  
Author(s):  
J. M. Kranabetter ◽  
S. M. Berch ◽  
J. A. MacKinnon ◽  
O. Ceska ◽  
D. E. Dunn ◽  
...  
Keyword(s):  
Pseudotsuga Menziesii ◽  
Ectomycorrhizal Fungi ◽  
Distance Decay ◽  
Old Growth ◽  
Species Area

Occurrence of Piloderma fallax in young, rotation-age, and old-growth stands of Douglas-fir (Pseudotsuga menziesii) in the Cascade Range of Oregon, U.S.A.

2000 ◽  
Vol 78 (8) ◽  
pp. 995-1001 ◽  
Author(s):  
J E Smith ◽  
R Molina ◽  
M MP Huso ◽  
M J Larsen
Keyword(s):  
Forest Management ◽  
Pseudotsuga Menziesii ◽  
Ectomycorrhizal Fungi ◽  
Coarse Woody Debris ◽  
Woody Debris ◽  
Douglas Fir ◽  
Percent Cover ◽  
Old Growth ◽  
Decay Class ◽  
Rotation Age

Yellow mycelia and cords of Piloderma fallax (Lib.) Stalp. were more frequently observed in old-growth stands than in younger managed stands of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco). Piloderma fallax frequency and percent cover data were collected from 900 plots in three replicate stands in each of three forest age classes over 2 years in both spring and fall. Piloderma fallax is strongly associated with stand age; it occurred in 57% of plots in old-growth, 6% of rotation-age, and 1% of young stands. Presence of Piloderma fallax was related to the percent cover of coarse woody debris (CWD) in decay class 5. Piloderma fallax was approximately 2.5 times more likely to occur in a plot with CWD decay class 5 present than in plots without. The probability that it would occur in a plot increased by approximately 20% for every 10% increase in percent cover of CWD decay class 5. However, the percent cover of Piloderma fallax was not strongly related to the percent cover of CWD in decay class 5. Frequency of occurrence did not differ among sampling times. Occurrence of Piloderma fallax may indicate suitable substrate for ectomycorrhizal fungi associated with CWD and may be important in forest management for the maintenance of biodiversity and old-growth components in young managed stands.Key words: Piloderma fallax, coarse woody debris, Pseudotsuga menziesii, forest management, ectomycorrhizal fungi, biodiversity.

Species richness, abundance, and composition of hypogeous and epigeous ectomycorrhizal fungal sporocarps in young, rotation-age, and old-growth stands of Douglas-fir (Pseudotsuga menziesii) in the Cascade Range of Oregon, U.S.A.

2002 ◽  
Vol 80 (2) ◽  
pp. 186-204 ◽  
Author(s):  
J E Smith ◽  
R Molina ◽  
M MP Huso ◽  
D L Luoma ◽  
D McKay ◽  
...  
Keyword(s):  
Pseudotsuga Menziesii ◽  
Ectomycorrhizal Fungi ◽  
Forest Succession ◽  
Fungal Species ◽  
Tsuga Heterophylla ◽  
Douglas Fir ◽  
Forest Age ◽  
Age Classes ◽  
Old Growth ◽  
Rotation Age

Knowledge of the community structure of ectomycorrhizal fungi among successional forest age-classes is critical for conserving fungal species diversity. Hypogeous and epigeous sporocarps were collected from three replicate stands in each of three forest age-classes (young, rotation-age, and old-growth) of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) dominated stands with mesic plant association groups. Over four fall and three spring seasons, 48 hypogeous and 215 epigeous species or species groups were collected from sample areas of 6300 and 43 700 m2, respectively. Cumulative richness of hypogeous and epigeous species was similar among age-classes but differed between seasons. Thirty-six percent of the species were unique to an age-class: 50 species to old-growth, 19 to rotation-age, and 25 to young stands. Seventeen species (eight hypogeous and nine epigeous) accounted for 79% of the total sporocarp biomass; two hypogeous species, Gautieria monticola Harkn., and Hysterangium crassirhachis Zeller and Dodge, accounted for 41%. Average sporocarp biomass in young and rotation-age stands compared with old-growth stands was about three times greater for hypogeous sporocarps and six times greater for epigeous sporocarps. Average hypogeous sporocarp biomass was about 2.4 times greater in spring compared with fall and for epigeous sporocarps about 146 times greater in fall compared with spring. Results demonstrated differences in ectomycorrhizal fungal sporocarp abundance and species composition among successional forest age-classes.Key words: ectomycorrhizal fungi, sporocarp production, forest succession, Pseudotsuga menziesii, Tsuga heterophylla zone, biodiversity.

A Sustained-Yield Scheme for Old-Growth Douglas-fir

1987 ◽  
Vol 2 (1) ◽  
pp. 22-25 ◽  
Author(s):  
Michael Newton ◽  
Elizebeth C. Cole
Keyword(s):  
High Risk ◽  
Pseudotsuga Menziesii ◽  
Volume Growth ◽  
Douglas Fir ◽  
Management Approach ◽  
Old Growth ◽  
Minimal Impact ◽  
Rotation Culture ◽  
Annual Volume ◽  
Sustained Yield

Abstract From analysis of two Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) stands, 120 and 140 years old, we conclude that managed stands can meet established criteria for old-growth Douglas-fir and simultaneously produce near-maximum yields of good-quality timber. With the management approach outlined here, average annual volume growth may approach that of shorter-rotation culture, but in logs of a size and quality normally found only in older stands, and with minimal impact on high-risk watersheds or old-growth habitat. This possibility encourages development of silvicultural systems that can achieve such goals in a variety of timber types. West. J. Appl. For. 2:22-25, Jan. 1987.

scholarly journals Similar biodiversity of ectomycorrhizal fungi in set-aside plantations and ancient old-growth broadleaved forests

2016 ◽  
Vol 194 ◽  
pp. 71-79 ◽  
Author(s):  
Rebecca Spake ◽  
Sietse van der Linde ◽  
Adrian C. Newton ◽  
Laura M. Suz ◽  
Martin I. Bidartondo ◽  
...  
Keyword(s):  
Ectomycorrhizal Fungi ◽  
Old Growth

Occurrence of Piloderma fallax in young, rotation-age, and old-growth stands of Douglas-fir (Pseudotsuga menziesii) in the Cascade Range of Oregon, U.S.A.

2000 ◽  
Vol 78 (8) ◽  
pp. 995-1001 ◽  
Author(s):  
J.E. Smith ◽  
R. Molina ◽  
M.M.P. Huso ◽  
M.J. Larsen
Keyword(s):  
Pseudotsuga Menziesii ◽  
Douglas Fir ◽  
Cascade Range ◽  
Old Growth ◽  
Rotation Age

Ectomycorrhizal fungi associated with Arctostaphylos contribute to Pseudotsuga menziesii establishment

1999 ◽  
Vol 77 (1) ◽  
pp. 93-102 ◽  
Author(s):  
Thomas R. Horton ◽  
Thomas D. Bruns ◽  
V. Thomas Parker
Keyword(s):  
Pseudotsuga Menziesii ◽  
Ectomycorrhizal Fungi

Patterns of Ectomycorrhizal-Fungi Consumption by Small Mammals in Remnant Old-Growth Forests of the Sierra Nevada

2001 ◽  
Vol 82 (3) ◽  
pp. 681-689 ◽  
Author(s):  
S. Pyare ◽  
W. S. Longland
Keyword(s):  
Sierra Nevada ◽  
Ectomycorrhizal Fungi ◽  
Small Mammals ◽  
Old Growth ◽  
Old Growth Forests

Vertical and seasonal variation in canopy arthropod communities in an old-growth conifer forest in southwestern Washington, USA

1998 ◽  
Vol 88 (6) ◽  
pp. 633-640 ◽  
Author(s):  
T.D. Schowalter ◽  
L.M. Ganio
Keyword(s):  
Pacific Northwest ◽  
Pseudotsuga Menziesii ◽  
Tree Species ◽  
Community Organization ◽  
Tsuga Heterophylla ◽  
Thuja Plicata ◽  
Conifer Forest ◽  
Old Growth ◽  
Arthropod Species ◽  
Arthropod Fauna

AbstractVariation in canopy arthropod abundances and community structure were evaluated in an old-growth (500-year-old) forest at the Wind River Canopy Crane Research Facility in southwestern Washington, USA. Arthropods were sampled at three canopy levels and two seasons in each of four tree species (Pseudotsuga menziesii, Tsuga heterophylla, Abies grandis, and Thuja plicata). The four tree species had distinguishable arthropod species compositions and community organization. Thuja plicata (Cupressaceae) had a particularly distinctive canopy fauna dominated by several mite taxa which did not occur on the other tree species (all Pinaceae). Pseudotsuga menziesii hosted a relatively diverse arthropod fauna with greatest richness of taxa and functional groups. Distinct arthropod assemblages were not observed among canopy levels and sampling dates, but these factors significantly influenced abundances of 63% of the arthropod taxa, either individually or interactively with other factors. These data indicate that forests managed for fewer tree species eliminate important components of arthropod diversity in Pacific Northwest forests and that sampling for biodiversity assessment also should represent season and canopy level.

Two-criteria model assessment shows that foliage maintenance in old-growth Pseudotsuga menziesii requires both delayed and sequential reiteration

Trees ◽  
2009 ◽  
Vol 23 (6) ◽  
pp. 1173-1187 ◽  
Author(s):  
Maureen C. Kennedy ◽  
E. David Ford
Keyword(s):  
Pseudotsuga Menziesii ◽  
Model Assessment ◽  
Old Growth
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