Papers - Ichinose, Tomohiro

Classification of habitats by "Classification Tree" : a case study on riparian habitats of birds

ICHINOSE Tomohiro

Ecology and Civil Engineering (Ecology and Civil Engineering Society)  5 ( 2 ) 189-201 - 201 2003.02

Research paper (scientific journal), Joint Work, Accepted,  ISSN  1344-3755

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Multivariate analysis of ecological data has been applied to environmental analysis and evaluation. Recently, some ecologists reported that classification and regression trees (CART) are ideally suited for the analysis of complex ecological data. We use classification tree to analyze the relationship between avian species composition and habitat conditions from 37 study plots located in a riparian area of the Tama-gawa River, Tokyo. The data were comprised of census data of birds and vegetation structural information. First, the study plots were classified by TWINSPAN based on the avian species composition. Then, we tried to recover the grouping of the study plots by classification tree or canonical discriminant analysis using the vegetation structural information so that we could find the relationship between avian species composition and vegetation structure. Classification tree analysis performed almost as well as canonical discriminant analysis. Classification tree models explain variation of a single response variable (here, avian fauna type) by repeatedly splitting the study plots into more homogeneous groups, using combinations of explanatory variables (here, vegetation structural parameters). This structure is simple, suitable for dealing with high-order interactions, so that classification tree can give easily interpretable results. Finally, based on the comparison of classification tree and canonical discriminant analysis, we concluded that classification tree was more suitable than discriminant analysis for landscape evaluation and planning.

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Biotope Mapping and Planning in Hyogo Prefecture

ICHINOSE Tomohiro

造園技術報告集 (日本造園学会)  2 ( 2 ) 42-45 - 45 2003.01

Research paper (conference, symposium, etc.), Joint Work, Accepted

大阪湾周辺地域における土砂採取跡地利用とその要因に関する研究

ICHINOSE Tomohiro

都市計画報告集 (日本都市計画学会)  1   62-65 2003

Research paper (conference, symposium, etc.), Joint Work

緑地と周辺の土地利用が越冬期の鳥類の分布に及ぼす影響について−都市域における生態的ネットワーク構築に向けて−

ICHINOSE Tomohiro

日本都市計画学会学術研究論文集 (日本都市計画学会)  38   625-630 2003

Research paper (conference, symposium, etc.), Single Work, Accepted

Water quality and fluctuation pattern in water level of small irrigation ponds in the rural area in Hokudan-cho, Hyogo Prefecture.

ICHINOSE Tomohiro, KATAOKA Miwa

JOURNAL OF RURAL PLANNING ASSOCIATION (THE ASSOCIATION OF RURAL PLANNING)  22 ( 22 ) 1 - 6 2003

Accepted,  ISSN  0912-9731

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Water quality and fluctiation pattern in water level of 38 small irrigation ponds were investigated in Hokudan- cho, Hyogo Prefecture, West Japan. Temperature, water temperature, pH, electric conductivity (EC), dissolved oxygen (DO), N0<SUB>2</SUB><SUP>-</SUP>, N0<SUB>3</SUB><SUP>-</SUP> NH<SUB>4</SUB><SUP>+</SUP>, SiO<SUB>2</SUB>, PO<SUB>4</SUB><SUP>3-</SUP>, chemical oxygen demand (COD) and water level were surveyed in each pond from May 2002 to April 2003. The result showed that there was not so much difference in water condition of among ponds, because water is frequently pumped from a pond to another pond. The existence of water plants and polluted water from residences influenced water condition. The water level of most irrigation ponds fluctuated dramatically from spring to the end of summer.

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Relationship between distribution of dragonfly species and environmental factors in small irrigation ponds in Hokudan-cho, Hyogo Prefecture

ICHINOSE Tomohiro

JOURNAL OF RURAL PLANNING ASSOCIATION (THE ASSOCIATION OF RURAL PLANNING)  21 ( 別冊 ) 25-30 - 30 2002.12

Research paper (scientific journal), Joint Work, Accepted,  ISSN  0912-9731

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Dragonfly species were surveyed in 23 small irrigation ponds in Hokudan-cho, Hyogo Prefectre in order to detect environmental factors influencing dragonfly distribution. Thirty-two species and 1066 individuals were observed from May to October 2001. The number of dragonfly species had no significant relation with water body area of irrigation ponds. Twenty-three ponds were classified to three types by TWINSPAN (Two-way Indicator Species Analysis). The result showed that neighboring woodlots and frequency of cutting glass around pond influenced the component of dragonfly species. Cutting glass is one of the important maintenances of irrigation ponds. It was suggested that the disturbance by traditional farm works such as cutting glass plays an important role to maintain dragonfly species richness on this area.

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生態的ネットワーク計画のための評価手法の提案−洲本市を事例として−

ICHINOSE Tomohiro

農村計画学会誌 (農村計画学会)  21 ( 別冊 ) 235-240 2002.12

Research paper (scientific journal), Joint Work, Accepted

公園緑地における鳥類の出現状況と公園緑地の植生及び周辺土地利用との関係に関する研究−都市域における生態的ネットワーク計画構築のための基礎的研究−

ICHINOSE Tomohiro

日本都市計画学会学術研究論文集 (日本都市計画学会)  37   919-924 2002.11

Research paper (conference, symposium, etc.), Single Work, Accepted

Relationship between the appearance of birds in urban park and the vegetation and surrounding land uses : A basic study for ecological network planning in urban areas

ICHINOSE Tomohiro

Journal of the City Planning Institute of Japan (The City Planning Institute of Japan)  37 ( 37 ) 919 - 924 2002.10

Accepted,  ISSN  0913-1280

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The bird distribution was analyzed in the urban area of Nishinomiya City, Hyogo Prefecture, in order to develop evaluation methods of habitat suitability for ecological network planning. Bird communities were censused by point count method in twenty urban parks from December 1999 to February 2000. Based on the species composition of bird, twenty urban park were classified into four types by TWINSPAN (Two Ways INdicator SPecies ANalysis). The result of classification and regression trees showed that area of woods within urban park, ratio of woods within 500 m around urban park and vegetation cover density in shrub and herb layers (from 0.12 to 3 m) and tree layer (more than 9 m).

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Factors Influencing the Distribution of Dragonflys (Odonata) in the Agricultural Landscape in Hokudan-cho, Hyogo Prefecture

ICHINOSE Tomohiro

Journal of The Japanese Institute of Landscape Architecture (The Japanese Institute of Landscape Architecture)  65 ( 5 ) 501-506 - 506 2002.03

Research paper (scientific journal), Joint Work, Accepted,  ISSN  1340-8984

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There is a huge number of small irrigation ponds in the agricultural landscape of the north of Awaji Island, Hyogo Prefecture. Recently, managements of many ponds have been abandoned. However, these ponds are used as habitat by many organisms. They have an important role to maintain biodiversity in this area.<BR>Dragonfly (Odonata) species were surveyed in 24 irrigation ponds in Hokudan-cho, the north of Awaji Island. Thirty-seven species were catched and/or observed from June to September 2000. The number of dragonfly species had no relation with water body area of irrigation ponds. Twenty-four ponds were classified to five types by TWINSPAN (Two-way Indicator Species Analysis). The classification of TWINSPAN was analyzed by Classification and Regression Trees using explanatory variables about environmental factors of irrigation ponds. The results showed that altitude, neighboring woodlots, water body area and water quality influenced the component of dragonfly species. Especially, it was important for species preferring edge and/or inside of woodlot that over 45 percents of pond surroundings were adjacent to woodlots. It was also suggested that surrounding land uses influenced the distribution of dragonfly species.

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生態的ネットワーク計画手法の提案−洲本市を事例として−

ICHINOSE Tomohiro

景観園芸研究 (兵庫県立淡路景観園芸学校)  3   23-28 2002.03

Research paper (bulletin of university, research institution), Joint Work, Accepted

兵庫県淡路町における果樹園に関わる土地利用変遷とその要因について

ICHINOSE Tomohiro

景観園芸研究 (兵庫県立淡路景観園芸学校)  3   11-16 2002.03

Research paper (bulletin of university, research institution), Joint Work, Accepted

都市域における生態的ネットワーク計画手法に関する研究

ICHINOSE Tomohiro

都市緑化技術 (都市緑化技術開発機構)  46 ( 46 ) 36-39 - 39 2002

Research paper (scientific journal), Single Work, Accepted,  ISSN  0919-021X

A method of evaluating ecological network. A case study in Sumoto City.

Hashimoto Ayako, Ito Kyuichi, Mitusi Yuichiro, Kataoka Miwa, Ichinose Tomohiro, Mino Nobuyuki, Mino Nobuyuki, Sairo Yohei

JOURNAL OF RURAL PLANNING ASSOCIATION (THE ASSOCIATION OF RURAL PLANNING)  21 ( 21 ) 235 - 240 2002

Accepted,  ISSN  0912-9731

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The objectie of this study is to propose a method for evaluating ecological network. We propose to consider two classes of spatial scales for evaluation. In the macro-scale research, we classified land use types by satellite data, and extracted two areas of heterogeneous or homogeneous land use in the object region In these areas, we performed micro-scale researches through field survey and geographical information based topographical maps. Throughout these researches of different spatial scales, we evaluated present ecological network and discussed the availability of this method.

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Distribution and management of irrigation ponds in the Awaji Island, Hyogo Prefecture.

ICHINOSE Tomohiro

JOURNAL OF RURAL PLANNING ASSOCIATION (THE ASSOCIATION OF RURAL PLANNING)  20 ( 別冊 ) 79-84 - 84 2001.12

Research paper (scientific journal), Joint Work, Accepted,  ISSN  0912-9731

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Analysis of land use changes in Awaji-cho, Hyogo prefecture by GIS.

ICHINOSE Tomohiro

JOURNAL OF RURAL PLANNING ASSOCIATION (THE ASSOCIATION OF RURAL PLANNING)  20 ( 別冊 ) 169-174 - 174 2001.12

Research paper (scientific journal), Joint Work, Accepted,  ISSN  0912-9731

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Biotope Mapping of the Riparian Area of the Tama-gawa River and its Application to Estimation of Spatial Distribution of Ixeris tamagawaensis, a Red List Species

ICHINOSE Tomohiro

地理情報システム学会講演論文集 (地理情報システム学会)  10   337-340 - 340 2001.10

Research paper (conference, symposium, etc.), Joint Work

鳥類群集を指標とした緑地環境評価手法に関する研究

ICHINOSE Tomohiro

景観園芸研究 (兵庫県立淡路景観園芸学校)  2   73-135 2001.03

Research paper (bulletin of university, research institution), Single Work

兵庫県北淡町の土地利用変遷とその要因

ICHINOSE Tomohiro

景観園芸研究 (兵庫県立淡路景観園芸学校)  2   21-26 2001.03

Research paper (bulletin of university, research institution), Joint Work, Accepted

淡路島北淡町の農村地域のため池におけるトンボ相の特徴

ICHINOSE Tomohiro

景観園芸研究 (兵庫県立淡路景観園芸学校)  2   51-54 2001.03

Research paper (bulletin of university, research institution), Joint Work, Accepted