Influence of coarse woody debris on the soricid community in southeastern Coastal Plain pine stands. [electronic resource]

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Tác giả:

Ngôn ngữ: eng

Ký hiệu phân loại: 545.7 Quantitative analysis

Thông tin xuất bản: Washington, D.C : Oak Ridge, Tenn. : United States. Dept. of Energy. Assistant Secretary for Environment, Safety, and Health ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2010

Mô tả vật lý: Size: 993-999 : , digital, PDF file.

Bộ sưu tập: Metadata

ID: 262423

 Shrew abundance has been linked to the presence of coarse woody debris (CWD), especially downed logs, in many regions in the United States. We investigated the importance of CWD to shrew communities in managed upland pine stands in the southeastern United States Coastal Plain. Using a randomized complete block design, 1 of the following treatments was assigned to twelve 9.3-ha plots: removal (n 5 3
  all downed CWD _10 cm in diameter and _60 cm long removed), downed (n 5 3
  5-fold increase in volume of downed CWD), snag (n 5 3
  10-fold increase in volume of standing dead CWD), and control (n 5 3
  unmanipulated). Shrews (Blarina carolinensis, Sorex longirostris, and Cryptotis parva) were captured over 7 seasons from January 2007 to August 2008 using drift-fence pitfall trapping arrays within treatment plots. Topographic variables were measured and included as treatment covariates. More captures of B. carolinensis were made in the downed treatment compared to removal, and captures of S. longirostris were greater in downed and snag compared to removal. Captures of C. parva did not differ among treatments. Captures of S. longirostris were positively correlated with slope. Our results suggest that abundance of 2 of the 3 common shrew species of the southeastern Coastal Plain examined in our study is influenced by the presence of CWD.
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