scholarly journals Informal Trails and the Spread of Invasive Species in Urban Natural Areas: Spatial Analysis of Informal Trails and their Effects on Understory Plant Communities in Forest Park, Portland, Oregon

2000 ◽  
Author(s):  
Jill Van Winkle
Keyword(s):  
Invasive Species ◽  
Spatial Analysis ◽  
Plant Communities ◽  
Natural Areas ◽  
Forest Park ◽  
Understory Plant ◽  
Understory Plant Communities ◽  
Informal Trails

scholarly journals Disturbing to restore? Effects of mounding on understory communities on seismic lines in treed peatlands

2020 ◽  
Vol 50 (12) ◽  
pp. 1340-1351
Author(s):  
Laureen F.I. Echiverri ◽  
S. Ellen Macdonald ◽  
Scott E. Nielsen
Keyword(s):  
Community Composition ◽  
Plant Communities ◽  
Oil And Gas ◽  
Reference Sites ◽  
Oil And Gas Exploration ◽  
Understory Plant ◽  
Understory Plant Communities ◽  
Understory Communities ◽  
Associated Species ◽  
Seismic Lines

In peatlands, microtopography strongly affects understory plant communities. Disturbance can result in a loss of microtopographic variation, primarily through the loss of hummocks. To address this, mounding treatments can be used to restore microtopography. We examined the effects of mounding on the understory vegetation on seismic lines in wooded fens. Seismic lines are deforested linear corridors (∼3 to 8 m wide) created for oil and gas exploration. Our objectives were to compare the recovery of understory communities on unmounded and mounded seismic lines and determine how recovery varies with microtopographic position. Recovery was evident in the unmounded seismic lines, with higher shrub and total understory cover at the “tops” of the small, natural hummocks than at lower microtopographic positions — much like the trends in adjacent treed fens. In contrast, mounding treatments that artificially created hummocks on seismic lines significantly changed understory communities. Mounded seismic lines had higher forb cover, much lower bryophyte cover, less variation along the microtopographic gradient, and community composition less similar to that of the reference sites than unmounded seismic lines due to higher abundance of marsh-associated species. Our results suggest that mounding narrow seismic lines can be detrimental to the recovery of the understory communities in treed peatlands.

Fire severity and changing composition of forest understory plant communities

2019 ◽  
Vol 30 (6) ◽  
pp. 1099-1109 ◽  
Author(s):  
Jens T. Stevens ◽  
Jesse E. D. Miller ◽  
Paula J. Fornwalt
Keyword(s):  
Plant Communities ◽  
Fire Severity ◽  
Forest Understory ◽  
Understory Plant ◽  
Understory Plant Communities

scholarly journals Half a Century of Multiple Anthropogenic Stressors has Altered Northern Forest Understory Plant Communities

2019 ◽  
Vol 100 (3) ◽  
Author(s):  
Per‐Ola Hedwall ◽  
Lena Gustafsson ◽  
Jörg Brunet ◽  
Matts Lindbladh ◽  
Anna‐Lena Axelsson ◽  
...  
Keyword(s):  
Plant Communities ◽  
Forest Understory ◽  
Northern Forest ◽  
Anthropogenic Stressors ◽  
Understory Plant ◽  
Understory Plant Communities

Understory plant communities and the functional distinction between savanna trees, forest trees, and pines

Ecology ◽  
2013 ◽  
Vol 94 (2) ◽  
pp. 424-434 ◽  
Author(s):  
Joseph W. Veldman ◽  
W. Brett Mattingly ◽  
Lars A. Brudvig
Keyword(s):  
Plant Communities ◽  
Forest Trees ◽  
Understory Plant ◽  
Understory Plant Communities
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