상세 정보

underline
Metadata Downloads : dc(xml) or Excel
Cited 0 time in scopus ci

Title 

Effect of thinning on flying insect communities using window traps in young Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) forests in the pacific northwestern America

 

곤충군집에 대한 간벌의 효과

Authors 

Hoonbok Yi

Publisher 

The Botanical Society of Korea

Issue Date 

2007

Citation 

Journal of Plant Biology, vol. 50, no. 2, pp. 190-197

Keywords 

biodiversitydouglas-firflying insectsNMSthinningwindow trap

Abstract 

The response of insects to four thinning intensities (control, light-thin, heavy-thin, or light-thin with gaps) was examined in 40- to 60-year-old Douglas-fir stands on the Willamette National Forest in Oregon, USA. In both 2000 and 2001, flying insect assemblages were collected from window traps placed over the forest floor in the center of each treatment block during two annual intervals: 1) June through August (early-season) and 2) August through October (late-season). The seasonal responses by these insects showed statistically significant differences in species richness (F=22.21, P <0.001) and mean abundance (F=34.87, P <0.001). The greatest numbers of taxa generated via indicator species analysis were in the early season and within the treatment of light-thin with gap (L/ G). In particular, the woodborer beetle, Buprestis (Burprestidae), was strongly associated with L/G (Indicator Value = 52.4, P ≤0.001). Two beetle taxa, Ampedus (Elateridae, IV=84.7, P ≤0.001) and members of Cermabycidae (IV=58.4, P ≤0.001), were correlated significantly with early-season, whereas Melanoplus (Acrididae) was associated with late-season (IV=21.3, P >0.05) and L/G (IV=29.2, P ≤0.05). For all thinning treatments, the numbers of species and individuals were higher in the early season than the late season. Non-metric multidimensional scaling showed that Axis 1 (65%) and Axis 2 (27%) explained 92% of the variance. The former was strongly associated with thinning intensity, having higher coefficients of species richness (r=0.645) and species diversity (r=0.583). The multi-response permutation procedures showed a statistically significant difference for thinning intensity (T-statistics= -4.6322, A-statistics=0.0479, P <0.0001). These results suggest that heavier thinning can result in more diverse populations of flying insects, including herbivores and predators.

ISSN 

1226-9239

Link 

http://dx.doi.org/10.1007/BF03030629

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


There are no files associated with this item.
qrcode

FusionCharts.
DSpace Software Coptright(c) 2010 MIT and Hewleft-Packard  /  KRIBB-REPOSITORY ( Email:jakim@kribb.re.kr)