• Korean Journal of Environment and Ecology
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• v.27 no.5
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• pp.544-549
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• 2013

We studied the habitat sites of Siberian flying squirrel in Guhak-ri, Sillim-myeon, Wonju-si, Gangwon-do from March to April in 2009. We were found total 30 points of inhabitation trace types; nests 15 points(Tree nest types were 13 points, used Tree hole types hole types were 2 points) and droppings 15 points. We observed 3 individuals of Siberian flying squirrels and founded that 2 individuals of them used tree holes, and another individual used tree nest which were located in branches of Pinus densiflora. Most utilized nest trees of Siberian flying squirrel were Larix leptolepis, and also used Pinus densiflora, Betula davurica, Styrax japonica, Cornus controversa, Acer mono. Droppings trees were Prunus sargentii, Cornus controversa, Quercus xmccormickii, Acer palmatum, Acer palmatum, Betula davurica. Through the observation, we defined that flying squirrels mainly used Conifer trees as nest sites, and decideous trees as droppings.

• Korean Journal of Environment and Ecology
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• v.34 no.3
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• pp.198-206
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• 2020

The purpose of this study was to investigate the damage caused by rodents in the area around Seseokpyeongjeon in Jirisan National Park and identify suspected perpetrating species by analyzing rodent excrement found near the damaged trees. Damaged trees were surveyed regardless of species of trees in the exploration trail in the target site where visual observation was possible. Sequencing analysis of mitochondrial DNA Cyt-b was performed on rodent excrement around the damaged trees to identify the perpetrating species. A total of 52 trees were damaged by rodents, and they were all identified to be Korean Fir (Abies koreana) and were concentrated in places where Korean Fir formed communities with high density. A total of 40 Korean Fir over 1.5 meters high were surveyed, and only the affected branches, not the whole tree, were found to be withered in 39 of them. A total of 12 Korean Fir under 1.5 meters high were surveyed, and 7 of which were found to have been completely withered, indicating that relatively young trees were more vulnerable to withering. The genetic sequencing analysis of excrement confirmed that the species that perpetrated the Korean Fir was Craseomys regulus.

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2008.10a
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• pp.43-45
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• 2008

본 연구는 천연기념물로 지정된 백로 왜가리 집단번식지의 보호 및 관리에 대한 기초자료 확보 및 DB구축마련을 위해 무안, 양양, 통영, 횡성, 여주, 진천의 6개의 지정지역을 대상으로 2008년 6월$\sim$9월까지 번식지 현 실태, 개체수, 수목훼손율을 파악하였다. 현지 조사결과 백로류의 집단 도래지는 주변 개발로 인하여 채식지 부족 현상, 백로류의 배설물로 인한 고사목의 증가, 천연기념물지정 후 관리미흡 등 많은 위협을 받고 있었다. 천연기념물 백로류 번식지 중 통영의 경우 현재 백로와 왜가리가 도래하지 않았으며, 다른 지역의 번식지는 도래 개체수가 급격히 감소하였다. 백로류 번식지의 고사목이 늘어나면서 둥지목의 그루수는 감소하였고, 둥지목당 번식둥지가 증가하는 현상을 보여주었다.