Ikhlas Hussain Alwan
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Dipterocarpaceae)
DNA Sequence-Based Identification and Molecular Phylogeny Within Subfamily Dipterocarpoideae (Dipterocarpaceae) Dissertation Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Ph.D.) at Forest Genetics and Forest Tree Breeding, Büsgen Institute Faculty of Forest Sciences and Forest Ecology Georg-August-Universität Göttingen By Essy Harnelly (Born in Banda Aceh, Indonesia) Göttingen, 2013 Supervisor : Prof. Dr. Reiner Finkeldey Referee : Prof. Dr. Reiner Finkeldey Co-referee : Prof. Dr. Holger Kreft Date of Disputation : 09.01.2013 2 To My Family 3 Acknowledgments First of all, I would like to express my deepest gratitude to Prof. Dr. Reiner Finkeldey for accepting me as his PhD student, for his support, helpful advice and guidance throughout my study. I am very grateful that he gave me this valuable chance to join his highly motivated international working group. I would like to thank Prof. Dr. Holger Kreft and Prof. Dr. Raphl Mitlöhner, who agreed to be my co-referee and member of examination team. I am grateful to Dr. Kathleen Prinz for her guidance, advice and support throughout my research as well as during the writing process. My deepest thankfulness goes to Dr. Sarah Seifert (in memoriam) for valuable discussion of my topic, summary translation and proof reading. I would also acknowledge Dr. Barbara Vornam for her guidance and numerous valuable discussions about my research topic. I would present my deep appreciation to Dr. Amarylis Vidalis, for her brilliant ideas to improve my understanding of my project. My sincere thanks are to Prof. Dr. Elizabeth Gillet for various enlightening discussions not only about the statistical matter, but also my health issues. -
Préparation Et Vieillissement De Matières Organiques En Contexte Archéologique : Approche Analytique Et Expérimentale Julien Perthuison
Préparation et vieillissement de matières organiques en contexte archéologique : approche analytique et expérimentale Julien Perthuison To cite this version: Julien Perthuison. Préparation et vieillissement de matières organiques en contexte archéologique : approche analytique et expérimentale. Chimie analytique. Université de Strasbourg, 2020. Français. NNT : 2020STRAF006. tel-03033729 HAL Id: tel-03033729 https://tel.archives-ouvertes.fr/tel-03033729 Submitted on 1 Dec 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. UNIVERSITÉ DE STRASBOURG ÉCOLE DOCTORALE DES SCIENCES CHIMIQUES Institut de Chimie de Strasbourg – UMR 7177 THÈSE présentée par : Julien PERTHUISON soutenue le : 7 mai 2020 pour obtenir le grade de : Docteur de l’université de Strasbourg Discipline/ Spécialité : Chimie Analytique Préparation et vieillissement de matières organiques en contexte archéologique : approche analytique et expérimentale THÈSE dirigée par : M. ADAM Pierre Directeur de recherche CNRS, Université de Strasbourg M. SCHAEFFER Philippe Directeur de recherche CNRS, Université de Strasbourg RAPPORTEURS : Mme LATTUATI-DERIEUX Agnès Ingénieure de recherche, C2RMF M. GROSSI Vincent Directeur de recherche CNRS, Université Claude Bernard « La théorie, c’est quand on sait tout et que rien ne fonctionne. La pratique, c’est quand tout fonctionne et que personne ne sait pourquoi. -
Nazrin Full Phd Thesis (150246576
Maintenance and conservation of Dipterocarp diversity in tropical forests _______________________________________________ Mohammad Nazrin B Abdul Malik A thesis submitted in partial fulfilment of the degree of Doctor of Philosophy Faculty of Science Department of Animal and Plant Sciences November 2019 1 i Thesis abstract Many theories and hypotheses have been developed to explain the maintenance of diversity in plant communities, particularly in hyperdiverse tropical forests. Maintenance of the composition and diversity of tropical forests is vital, especially species of high commercial value. I focus on the high value dipterocarp timber species of Malaysia and Borneo as these have been extensive logged owing to increased demands from global timber trade. In this thesis, I explore the drivers of diversity of this group, as well as the determinants of global abundance, conservation and timber value. The most widely supported hypothesis for explaining tropical diversity is the Janzen Connell hypothesis. I experimentally tested the key elements of this, namely density and distance dependence, in two dipterocarp species. The results showed that different species exhibited different density and distance dependence effects. To further test the strength of this hypothesis, I conducted a meta-analysis combining multiple studies across tropical and temperate study sites, and with many species tested. It revealed significant support for the Janzen- Connell predictions in terms of distance and density dependence. Using a phylogenetic comparative approach, I highlight how environmental adaptation affects dipterocarp distribution, and the relationships of plant traits with ecological factors and conservation status. This analysis showed that environmental and ecological factors are related to plant traits and highlights the need for dipterocarp conservation priorities. -
Nesting and Nest Trees of Stingless Bees (Apidae: Meliponini) in Lowland Dipterocarp Forests in Sabah, Malaysia, with Implicatio
Forest Ecology and Management 172 (2003) 301±313 Nesting and nest trees of stingless bees (Apidae: Meliponini) in lowland dipterocarp forests in Sabah, Malaysia, with implications for forest management Thomas Eltza,*, Carsten A. BruÈhla, Zamrie Imiyabirb, K. Eduard Linsenmaira aDepartment of Animal Ecology and Tropical Biology, Theodor-Boveri-Institute for Biosciences, Am Hubland, D-97074 WuÈrzburg, Germany bSabah Forestry Department, Forest Research Centre, P.O. Box 1407, 90715 Sandakan, Sabah, Malaysia Received 9 May 2001; received in revised form 19 October 2001; accepted 19 October 2001 Abstract Nesting habits of highly social stingless bees (Meliponini) were studied in lowland dipterocarp forests in Sabah, Borneo. A total of 275 nests of 12 species of bees were located. All nests were closely associated with living (91.5%) or dead (8.5%) trees, either within pre-formed cavities in the trunk (cavity nests) or situated in or under the tree base (base nests). Species of bees differed in nesting habit. The majority of species (seven) were cavity nesters, but the majority of nests (81%) were base nests. Nests were often aggregated (mean of 1.94 nests/nest tree), with up to eight colonies and three species in a single tree. Nest trees were mostly large to very large (86.1% above 60 cm dbh) commercial timber trees; 47.3% of nest trees were dipterocarps. According to visual inspection nest trees were of signi®cantly lower expected timber quality then randomly chosen control trees. Taking into account information on tree species, size and expected timber quality, we estimated that 34.0 or 42.6% of nest trees were potential harvest trees, depending on harvesting regulations (reduced impact logging (RIL) versus conventional). -
Literaturverzeichnis
Literaturverzeichnis Abaimov, A.P., 2010: Geographical Distribution and Ackerly, D.D., 2009: Evolution, origin and age of Genetics of Siberian Larch Species. In Osawa, A., line ages in the Californian and Mediterranean flo- Zyryanova, O.A., Matsuura, Y., Kajimoto, T. & ras. Journal of Biogeography 36, 1221–1233. Wein, R.W. (eds.), Permafrost Ecosystems. Sibe- Acocks, J.P.H., 1988: Veld Types of South Africa. 3rd rian Larch Forests. Ecological Studies 209, 41–58. Edition. Botanical Research Institute, Pretoria, Abbadie, L., Gignoux, J., Le Roux, X. & Lepage, M. 146 pp. (eds.), 2006: Lamto. Structure, Functioning, and Adam, P., 1990: Saltmarsh Ecology. Cambridge Uni- Dynamics of a Savanna Ecosystem. Ecological Stu- versity Press. Cambridge, 461 pp. dies 179, 415 pp. Adam, P., 1994: Australian Rainforests. Oxford Bio- Abbott, R.J. & Brochmann, C., 2003: History and geography Series No. 6 (Oxford University Press), evolution of the arctic flora: in the footsteps of Eric 308 pp. Hultén. Molecular Ecology 12, 299–313. Adam, P., 1994: Saltmarsh and mangrove. In Groves, Abbott, R.J. & Comes, H.P., 2004: Evolution in the R.H. (ed.), Australian Vegetation. 2nd Edition. Arctic: a phylogeographic analysis of the circu- Cambridge University Press, Melbourne, pp. marctic plant Saxifraga oppositifolia (Purple Saxi- 395–435. frage). New Phytologist 161, 211–224. Adame, M.F., Neil, D., Wright, S.F. & Lovelock, C.E., Abbott, R.J., Chapman, H.M., Crawford, R.M.M. & 2010: Sedimentation within and among mangrove Forbes, D.G., 1995: Molecular diversity and deri- forests along a gradient of geomorphological set- vations of populations of Silene acaulis and Saxi- tings. -
DAFTAR MERAH 50Jenis Tumbuhan Pohon Kayu Indonesia 1: Komersial DAFTAR MERAH Jenis Kayu Komersial Pernah Menjadi Sumber Penghasil Devisa Penting Bagi Indonesia
DAFTAR MERAH 50Jenis Tumbuhan Pohon Kayu Indonesia 1: Komersial DAFTAR DAFTAR MERAH MERAH Jenis kayu komersial pernah menjadi sumber penghasil devisa penting bagi Indonesia. Kayu-kayu komersial, terutama yang mendominasi hutan dataran rendah, telah mengalami perubahan alih Indonesia 1: fungsi lahan yang begitu cepat sejak tiga dekade lalu Tumbuhan sehingga mengakibatkan menurunnya habitat dan populasi alam. Apabila tidak segera dilakukan aksi konservasi yang nyata, jenis-jenis tersebut bisa DAFTAR punah dalam waktu singkat. 50 Buku ini berisi informasi penilaian status konservasi, Jenis ciri-ciri utama, regenerasi, kegunaan, distribusi di 50 Pohon Kayu MERAH Indonesia, habitat dan ekologi, status populasi serta Komersial Pohon Kayu ancaman utama dan aksi konservasinya. Oleh karena Tumbuhan Jenis itu, buku ini diharapkan dapat menjadi pedoman bagi pengambil atau pemegang kebijakan dan praktisi Indonesia 1: Komersial konservasi serta masyarakat umum pemerhati jenis- jenis pohon. Enny Sudarmonowati, Kusumadewi Sri Yulita, Yulita, Enny Sudarmonowati, Kusumadewi Sri Tukirin Partomihardjo, dan Wita Wardani Tukirin Selamat membaca! Editor: Enny Sudarmonowati, Kusumadewi Sri Yulita, Tukirin Partomihardjo, dan Wita Wardani Editor: DOI 10.14203/press.310 e-ISBN 978-602-496-096-4 Buku ini tidak diperjualbelikan. DAFTAR MERAH 50Jenis Tumbuhan Pohon Kayu Indonesia 1: Komersial Editor: Enny Sudarmonowati, Kusumadewi Sri Yulita, Tukirin Partomihardjo, dan Wita Wardani Buku ini tidak diperjualbelikan. Buku ini tidak diperjualbelikan. Dilarang mereproduksi -
Understanding Local Patterns of Genetic Diversity in Dipterocarps Using a Multi-Site, Multi-Species Approach: Implications for Forest Management and Restoration ⇑ C
Forest Ecology and Management 356 (2015) 153–165 Contents lists available at ScienceDirect Forest Ecology and Management journal homepage: www.elsevier.com/locate/foreco Understanding local patterns of genetic diversity in dipterocarps using a multi-site, multi-species approach: Implications for forest management and restoration ⇑ C. Tito de Morais a, , J. Ghazoul a, C.R. Maycock b, R. Bagchi a,c, D.F.R.P. Burslem d, E. Khoo e, A. Itoh f, S. Nanami f, Shuhei Matsuyama f, A. Finger a,g, S.A. Ismail a,d, C.J. Kettle a a Ecosystem Management, Institute of Terrestrial Ecosystems, ETH Zurich, Zurich, Switzerland b International Tropical Forestry, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Malaysia c Department of Ecology and Evolutionary Biology, University of Connecticut, 75 N. Eagleville Road, Storrs, CT 06269-3043, USA d Institut of Biological and Environmental Sciences, University of Aberdeen, Cruickshank Building, St Machar Drive, Aberdeen AB24 3UU, United Kingdom e Forest Research Center, Sabah Forestry Department, P.O. Box 1407, 90715 Sandakan, Sabah, Malaysia f Graduate School of Science, Osaka City University, Sugimoto 3-3-138, Sumiyoshi-ku, Osaka 558-8585, Japan g Royal Botanic Gardens Edinburgh, Edinburgh, United Kingdom article info abstract Article history: The lowland tropical forests of Southeast Asia are dominated by a single family of canopy and emergent Received 27 February 2015 trees, the Dipterocarpaceae. The seeds of dipterocarps are gravity or gyration dispersed. Short distance Received in revised form 20 July 2015 and limited seed dispersal via these mechanisms result in the aggregation of related individuals and Accepted 23 July 2015 strong fine-scale spatial genetic structure (FSGS). -
26 Extreme Trees Pub 2020
Publication WSFNR-20-22C April 2020 Extreme Trees: Tallest, Biggest, Oldest Dr. Kim D. Coder, Professor of Tree Biology & Health Care / University Hill Fellow University of Georgia Warnell School of Forestry & Natural Resources Trees have a long relationship with people. They are both utility and amenity. Trees can evoke awe, mysticism, and reverence. Trees represent great public and private values. Trees most noticed and celebrated by people and communities are the one-tenth of one-percent of trees which approach the limits of their maximum size, reach, extent, and age. These singular, historic, culturally significant, and massive extreme trees become symbols and icons of life on Earth, and our role model in environmental stewardship and sustainability. What Is A Tree? Figure 1 is a conglomeration of definitions and concepts about trees from legal and word definitions in North America. For example, 20 percent of all definitions specifically state a tree is a plant. Concentrated in 63% of all descriptors for trees are four terms: plant, woody, single stem, and tall. If broad stem diameter, branching, and perennial growth habit concepts are added, 87% of all the descriptors are represented. At its most basic level, defining a tree is not species based, but is a structural definition. A tree is represented by a type of plant architecture recognizable by non-technical people. The most basic concepts for defining a tree are — a large, tall, woody, perennial plant with a single, unbranched, erect, self-supporting stem holding an elevated and distinct crown of branches, and which is greater than 10 feet in height and greater than 3 inches in diameter. -
EKSTRAKSI DAN AMPLIFIKASI DNA RARU Cotylelobium Melanoxylon Pierre DAN Cotylelobium Lanceolatum Craib
EKSTRAKSI DAN AMPLIFIKASI DNA RARU Cotylelobium melanoxylon Pierre DAN Cotylelobium lanceolatum Craib SKRIPSI PUTRI GEA 151201059 DEPARTEMEN BUDIDAYA HUTAN FAKULTAS KEHUTANAN UNIVERSITAS SUMATERA UTARA MEDAN 2020 UNIVERSITAS SUMATERA UTARA EKSTRAKSI DAN AMPLIFIKASI DNA RARU Cotylelobium melanoxylon Pierre DAN Cotylelobium lanceolatum Craib SKRIPSI Oleh : PUTRI GEA 151201059 Skripsi sebagai salah satu syarat untuk memperoleh gelar sarjana di Fakultas Kehutanan Universitas Sumatera Utara DEPARTEMEN BUDIDAYA HUTAN FAKULTAS KEHUTANAN UNIVERSITAS SUMATERA UTARA MEDAN 2020 UNIVERSITAS SUMATERA UTARA i UNIVERSITAS SUMATERA UTARA ii UNIVERSITAS SUMATERA UTARA ABSTRAK PUTRI GEA : Ekstraksi dan Amplifikasi DNA Raru Cotylelobium melanoxylon Pierre dan Cotylelobium lanceolatum Craib. Di bawah bimbingan ARIDA SUSILOWATI dan HENTI HENDALASTUTI RACHMAT. Raru (Cotylelobium melanoxylon Pierre) dan (Cotylelobium lanceolatum Craib) merupakan pohon yang tumbuh pada daerah beriklim tropis dan tumbuh tersebar di Pulau Sumatera dan Kalimantan. Pemanenan pohon yang tidak terkontrol telah menyebabkan penurunan populasi alami yang cepat menyebabkan potensi penurunan keanekaragaman genetik. Informasi terkait dengan genetika raru di Sumatera Utara masih sangat terbatas, termasuk metode ekstraksi DNA yang sesuai. Oleh karena itu, penelitian ini dilakukan untuk mendapatkan informasi tentang ekstraksi DNA menggunakan metode CTAB dan penanda referensi untuk studi genetik populasi. Ekstraksi DNA dilakukan melalui metode CTAB (Cetyl Trimetyl Ammonium Bromide). DNA hasil -
Molecular Identification of Decay Fungi in Xylem of Yellow Meranti (Shorea Gibbosa) Canker
Molecular Identification of Decay Fungi in Xylem of Yellow Meranti (Shorea gibbosa) Canker Erwin, Shuhei Takemoto, and Yuji Imamura Abstract By molecular technique, identification of decay fungi isolated from decayed xylem of the tree canker of yellow meranti (Shorea gibbosa) have been carried out. In this molecular identification, the ITS (Internal Transcribed Spacers) region of rDNA of fungal isolates were amplified and sequenced. The DNA sequence for each fungus was aligned with that of known species in the ITS region of rDNA database for fungi. By phylogenetic analysis based on the sequences of the ITS region of rDNA, a basidiomycete fungi isolated from decayed xylem of yellow meranti was identified as Phlebia brevispora. The presence of ascomycete fungi on the decayed xylem samples was also detected and identified as Aspergillus nomius, Phlogicylindrium sp., Hypocrea rufa, Hypocrea lixii, Talaromyces sp., and Trichoderma virens. Key words: decay fungi, ITS region of rDNA, phylogenetic analysis. Introduction managed for timber production, decay that develops on the tree stems reduces grade quality or timber yield, and is Molecular methods are increasingly being used to therefore a serious economic problem. identify wood-decay fungi (Claudia et al. 2000; Cortesi et al. In previous study, it was reported that the patterns of 2000; Blanchette et al. 2004; Diehl et al. 2004; Kim et al. xylem decay of S. gibbosa were similar to those of white-rot 2005). These methods provide a rapid and accurate way of fungi (Erwin et al. 2007). Therefore, we intended to identify characterizing and identifying organisms because they rely decay fungi isolated from the decayed xylem of S. -
Genetic Variation of the Genus Shorea (Dipterocarpaceae) in Indonesia
Genetic variation of the genus Shorea (Dipterocarpaceae) in Indonesia Dissertation submitted in partial fulfilments of the requirements for the degree of Doctor of Forestry Science at the Faculty of Forest Sciences and Forest Ecology, Georg-August University of Göttingen by Cui-Ping Cao born in Gansu, China Göttingen 2006 Supervisor: Prof. Dr. Reiner Finkeldey Referees of the dissertation: Prof. Dr. Reiner Finkeldey Prof. Dr. Ursula Kües Date of oral examination: 20 February 2006 http://resolver.sub.uni-goettingen.de/purl/?webdoc-689 i Acknowledgements I would like to express my hearty gratitude to Prof. Dr. Reiner Finkeldey for accepting me as a Ph. D. candidate, his excellent supervision, valuable suggestion and support, great patience and encouragement during the conduction of this work. I am thankful to Prof. Dr. Ursula Kües for consenting to be the co-referee and to Prof. Dr. Gode Gravenhorst and Prof. Dr. Ralph Mitlöhner for their efforts as members of the examination committee. I am also grateful to Dr. Oliver Gailing for his valuable guidance, many helpful ideas and constructive discussions, and Iskandar Siregar for providing the experimental leaf material from Indonesia Thanks must be given to Prof. Dr. Martin Ziehe for his valuable advices in terms of data analysis, Prof. Dr. Hans H. Hattemer, Prof. Dr. Hans-Rolf Gregorius, Dr. Ludger Leinemann and Dr. Barbara Vornam and Dr. Elizabeth M. Gillet for their friendly behaviour and help in some way or another in all phases of my work. Special acknowledgements are given to the valuable technical assistance in laboratory work of Mr. Gerold Dinkel, Mr. -
The Mechanical Stability of the World's Tallest Broadleaf Trees
bioRxiv preprint doi: https://doi.org/10.1101/664292; this version posted June 10, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 1 The mechanical stability of the world’s tallest broadleaf trees 2 T. Jackson1,2*, A. Shenkin1, N. Majalap3, J. bin Jami4, A. bin Sailim4, G. Reynolds4, D.A. Coomes2, C.J Chandler5, 3 D.S. Boyd5, A. Burt6, Phil Wilkes6,7, M. Disney6,7, Y. Malhi1 4 1 – Environmental Change Institute, School of Geography and the Environment, University of Oxford, OX1 3QY, UK 5 2 – Forest ecology and conservation group, Department of Plant Sciences, University of Cambridge, CB2 3EA, UK 6 3 – Phytochemistry Unit, Forest Research Centre, Jalan Sepilok, 90715 Sandakan, Sabah, Malaysia 7 4 – South East Asia Rainforest Research Partnership (SEARRP), Danum Valley Field Centre, 91112 Lahad Datu, Sabah, Malaysia 8 5 – School of Geography, University of Nottingham, Nottingham, NG7 2RD, UK 9 6 – Department of Geography, University College London, WC1E 6BT, UK 10 7 – NERC National Centre for Earth Observation (NCEO), Leicester, UK 11 12 *Corresponding author – [email protected] 13 Abstract 14 The factors that limit the maximum height of trees, whether ecophysiological or mechanical, are the 15 subject of longstanding debate. Here we examine the role of mechanical stability in limiting tree 16 height and focus on trees from the tallest tropical forests on Earth, in Sabah, Malaysian Borneo, 17 including the recently discovered tallest tropical tree, a 100.8 m Shorea faguetiana.