Influence of tree thinning on the abundance of mammals in a Japanese larch Larix kaempferi plantation
2017
Son, S.H., Chung-Ang University, Ansung, Republic of Korea | Hwang, H.S., Chung-Ang University, Ansung, Republic of Korea | Lee, J.K., Chung-Ang University, Ansung, Republic of Korea | Eom, T.K., Chung-Ang University, Ansung, Republic of Korea | Park, C.R., Korea Forest Research Institute, Seoul, Republic of Korea | Lee, E.J., Daejeon Development Institute, Daejeon, Republic of Korea | Kang, J.H., Cultural Heritage Administration of Korea, Daejeon, Republic of Korea | Rhi, S.J., Chung-Ang University, Ansung, Republic of Korea
We examined the influence of tree thinning on the abundance of mammals in a Japanese larch Larix kaempferi plantation in Mt Gariwang, Pyeongchang, South Korea. In 2014 and 2015, from April to October, we recorded the presence of tracks as a proxy for abundance, for the following seven mammalian species: Korean hare Lepus coreanus, raccoon dog Nyctereutes procyonoides, Siberian weasel Mustela sibirica, Eurasian badger Meles meles, water deer Hydropotes inermis, roe deer Capreolus pygargus, and wild boar Sus scrofa. We also assessed how the intensity of tree thinning affected vegetation cover; there were significant differences in number of standing trees, basal area, coverage of vegetation layers, and number and volume of downed trees among the control, moderately thinned, and intensively thinned stands. We found significant differences in the abundance of tracks among the stands for three mammal species. In four mammal species, the abundance of track was significantly correlated with volume of downed trees, coverage of ground vegetation, number of downed trees, and number of standing trees, according to stepwise analysis. The presence and abundance of mammals is linked to habitat variables and forest managers should consider how habitat modifications will affect wildlife.
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