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Elucidation of factors affecting epiphytic orchid community in Schima wallichii (DC.) Korth. (Theaceae) trees in a montane forest in West Java, Indonesia
Get PDF三重大学博士(学術)application/pdf内容の要旨・審査結果の要旨 / 資源循環学専攻thesi
Elucidation of factors affecting epiphytic orchid community in Schima wallichii (DC.) Korth. (Theaceae) trees in a montane forest in West Java, Indonesia
Get PDF三重大学博士(学術)application/pdfSchima wallichii (DC.) Korth. (Theaceae) is one of the common mountain species native to Java Island which have role as host trees for epiphytic plants. To clarify the relation between epiphytic orchid diversity and S. wallichii tree as host, forty S. wallichii trees with diameter at breast height (DBH) more than 20 cm were chosen randomly and epiphytic orchids attached were counted and identified in a montane forest of Mt. Sanggara, West Java, Indonesia. Each epiphytic orchid grown point was divided according to the Johansson’s method which divides a tree stratification into five different zones (Johansson 1974), which are numbered from zone 1 to zone 5. Johansson zone 1 was omitted from the analysis because of no orchid there.
In total of 39 epiphytic orchid species, 1,731 individuals, were identified from forty host trees at the study site. Based on the species richness of epiphytic orchid attached, S. wallichii trees could be considered as an important host. S. wallichii trees DBH showed a positive effect on epiphytic orchid abundance (p<0.01), species richness (p<0.05), and diversity (p<0.05). There was significant difference in orchid abundance and species richness between trunk (zone 2) and crown (zone 3, 4 and 5) while no significant difference in them within crown zones. Tree size (DBH) and the number of branches positively affected orchid abundance and species richness in a host tree. Orchids were correlated positively in number with other vascular epiphytic plants at mid-crown (zone 4) and outer-crown (zone 5). Density of surrounding trees affected the orchids abundance negatively. S. wallichii trees are essential to epiphytic orchid community because they develop many branches for epiphytic orchids to colonize. Preserving the large crowned S. wallichii with low density of surrounding trees is effective for conservation of epiphytic orchids.
This thesis explores internal and external factors by SWOT analysis to formulate management strategies for orchid conservation in montane forests in West Java. From the SWOT analysis, several strategies were proposed to optimize the strengths and opportunities for the purpose of overcoming the weaknesses and to avoid the threats.
Consequently, the proposed strategies can be an alternative for stakeholder to manage this forest sustainably not only for local residents but also for the epiphytic orchid and their hosts.本文/GRADUATE SCHOOL OF BIORESOURCES MIE UNIVERSITY102pdoctoral thesi
Elucidation of factors affecting epiphytic orchid community in Schima wallichii (DC.) Korth. (Theaceae) trees in a montane forest in West Java, Indonesia
No full textapplication/pdf内容の要旨・審査結果の要旨 / 資源循環学専
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Elucidation of factors affecting epiphytic orchid community in Schima wallichii (DC.) Korth. (Theaceae) trees in a montane forest in West Java, Indonesia
No full textapplication/pdfSchima wallichii (DC.) Korth. (Theaceae) is one of the common mountain species native to Java Island which have role as host trees for epiphytic plants. To clarify the relation between epiphytic orchid diversity and S. wallichii tree as host, forty S. wallichii trees with diameter at breast height (DBH) more than 20 cm were chosen randomly and epiphytic orchids attached were counted and identified in a montane forest of Mt. Sanggara, West Java, Indonesia. Each epiphytic orchid grown point was divided according to the Johansson’s method which divides a tree stratification into five different zones (Johansson 1974), which are numbered from zone 1 to zone 5. Johansson zone 1 was omitted from the analysis because of no orchid there.
In total of 39 epiphytic orchid species, 1,731 individuals, were identified from forty host trees at the study site. Based on the species richness of epiphytic orchid attached, S. wallichii trees could be considered as an important host. S. wallichii trees DBH showed a positive effect on epiphytic orchid abundance (p<0.01), species richness (p<0.05), and diversity (p<0.05). There was significant difference in orchid abundance and species richness between trunk (zone 2) and crown (zone 3, 4 and 5) while no significant difference in them within crown zones. Tree size (DBH) and the number of branches positively affected orchid abundance and species richness in a host tree. Orchids were correlated positively in number with other vascular epiphytic plants at mid-crown (zone 4) and outer-crown (zone 5). Density of surrounding trees affected the orchids abundance negatively. S. wallichii trees are essential to epiphytic orchid community because they develop many branches for epiphytic orchids to colonize. Preserving the large crowned S. wallichii with low density of surrounding trees is effective for conservation of epiphytic orchids.
This thesis explores internal and external factors by SWOT analysis to formulate management strategies for orchid conservation in montane forests in West Java. From the SWOT analysis, several strategies were proposed to optimize the strengths and opportunities for the purpose of overcoming the weaknesses and to avoid the threats.
Consequently, the proposed strategies can be an alternative for stakeholder to manage this forest sustainably not only for local residents but also for the epiphytic orchid and their hosts.本文/GRADUATE SCHOOL OF BIORESOURCES MIE UNIVERSITY102
ANALISIS KUALITAS ARGUMENTASI SISWA KELAS VII SMP PADA MATERI EKOSISTEM DENGAN METODE DEBAT
Get PDFPenelitian ini bertujuan untuk memperoleh gambaran umum yang meliputi: kualitas argumentasi dan kualitas setiap argumen; dan respons siswa terhadap pelaksanaan metode debat. Kualitas argumentasi ditentukan berdasarkan Pola Argumentasi Toulmin/Toulmin Argumentation Pattern (TAP) dan berdasarkan kriteria level yang dikembangkan Erduran, et al. (2004). Skor argumen ditentukan berdasarkan kriteria tertentu. Sikap siswa ditentukan dengan skala Likert. Seluruh tingkatan kualitas argumentasi dari level 1 sampai level 5 dapat teridentifikasi. Level argumentasi yang paling banyak muncul selama pelaksanaan pembelajaran adalah argumentasi level 2. Argumentasi level 2 terdiri dari argumen-argumen berupa claim dengan claim perlawanan yang disertai data, jaminan (warrant) atau dukungan (backing) tetapi tidak mengandung sanggahan (rebuttal). Kebanyakan siswa sudah bisa menyusun argumen dengan struktur tertentu. Berdasarkan lembar skala sikap yang dianalisis dengan Skala Likert, kebanyakan siswa merespons positif terhadap pelaksanaan metode debat sehingga sangat mungkin dilaksanakan di kelas untuk merangsang siswa belajar mempertahankan pendapat dan saling adu argumen
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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