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Epiphytic orchids and host trees diversity at Gunung Manyutan Forest Reserve, Wilis Mountain, Ponorogo, East Java
Biodiversitas , 2011,
Abstract: Yulia ND, Budiharta S (2011) Epiphytic orchids and host trees diversity at Gunung Manyutan Forest Reserve, Wilis Mountain, Ponorogo, East Java. Biodiversitas 12: 22-27. Natural forests in Wilis Mountain have been destroyed by forest fires, landslides and illegal logging. As a consequence, biological diversity in this area is threatened by local extinctions, particularly of orchid species. This study was aimed to explore, document and analyze the diversity of epiphytic orchids at Gunung Manyutan Forest Reserve, a natural forest area in Wilis Mountain. Purposive sampling on 1 hectare (50 x 200 m2) contiguous plot was used. This plot was divided into eight subplots (25 x 50 m2). All data on orchid species were recorded including its number, host trees and zone of the host tree where the orchid attached. The results showed that there were 29 epiphytic orchid species recorded. Flickingeria angulata was the most abundant species (Relative Abundance of orchids/ %Fo = 38.74), continued by Appendicula sp. (%Fo = 10.91) and Eria hyacinthoides (%Fo = 6.57). The three most important host trees were Pinus merkusii, Schima wallichii and Engelhardia spicata. Zone 3 (bottom part of the branches) was revealed as the most favorable part at the host tree (281 individuals), while Zone 1 (bottom part of the main stem) was the least preferable one.
Performance Study of Six Indigenous Epiphytic Monopodial Orchids of Bangladesh  [PDF]
M.M.U. Amin,M.S. Mollah,S.A. Tania,M.R. Ahmad
Journal of Biological Sciences , 2004,
Abstract: The study was undertaken in the Orchidarium of Floriculture Division, HRC, BARI, Gazipur during 2000-2001 and 2001-2002. Six indigenous epiphytic monopodial orchids were studied. Aerides multiflorum produced the longest inflorescence (29.67 cm) with maximum flowering area (21.83 cm) and maximum number (60.44), the biggest (3.00 cm across) floret was found in Vanda teres. Considering number and length of flower stalk, floret number/stalk, blooming type, color, fragrance, vase life, etc, Aerides multiflorum was found suitable for pot plant production and Vanda teres for cut flower production. Inflorescence number had the significant and positive correlation (r=0.93**) with plant height whereas, floret diameter showed significant positive correlation with plant height (r=0.99**) and with leaf number (r=0.98**).
Epiphytic orchids of Nepal  [PDF]
M Ghimire
Banko Janakari , 2008, DOI: 10.3126/banko.v18i2.2173
Abstract: This paper includes a list of 207 species of epiphytic orchids from Nepal that belong to 49 genera including 5 endemic species (Bulbophyllum ambrosia, Eria baniai, E. nepalensis, Oberonia nepalensis and Pleione coronaria). Phytogeographical distribution along with altitudinal ranges of all of these epiphytic species, phenology of flowering of 199 species and host plant(s) of 148 species have been reported herewith. The aim of this paper is to assess the distribution patterns, host-epiphyte relationship and phenology of flowering of Nepalese epiphytic orchids.
Orchids in Rolpa district of Western Nepal: Documentation, stock, trade and conservation  [PDF]
PN Koirala,D Pyakurel,K Gurung
Banko Janakari , 2010, DOI: 10.3126/banko.v20i2.4796
Abstract: Orchids are perennial, epiphytic, terrestrial or lithophytic herbs with roots having multilayered spongy tissues. In Nepal, 363 species of orchids are organized into 97 genera. Orchids fall under the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) Appendix II but do not fall under the legal protection of any existing national legislation. Habitat loss, forest destruction and degradation and over-exploitation have posed threats to the conservation of orchids in Nepal. The current study aims to document the orchids and estimate the stock of Dendrobium denudans and Dendrobium eriiflorum in a few potential locations of Rolpa district. A total of 36 species were documented in the surveyed 17 Village Development Committees (VDCs). Among them, 31 species were identified up to species level, two species up to generic level and the remaining three were unidentifed. The total stock of D. denudans was highest in Uwa VDC with 11018.08 kg followed by Seram VDC with the stock of 9982.57 kg. Similarly, D. eriiflorum stock in Seram, Siuri and Jaimakasala VDCs were 22750.01 kg, 7039.67 kg and 4933.46 kg, respectively. This study recommends a systematic research on the propagation technique; complete indexing of orchids; and inclusion of orchids in the Red Data Book on the threatened and endangered species. Orchid reserves in orchid hotspots should be established for the preservation and promotion of regeneration activities. The rare and endangered species should be preserved in botanic gardens. In addition to scientific attempts, the country should launch and implement a very firm regulation for their protection. Key words: Orchids; Dendrobium denudans ; Dendrobium eriiflorum ; distribution; conservation; Rolpa district DOI: 10.3126/banko.v20i2.4796 Banko Janakari Vol.20(2) 2010 pp.3-13
Relationship of Mesofauna Bioiversity and Undergrowth Vegetations in Jobolarangan Forest  [PDF]
Biodiversitas , 2001,
Abstract: Soil mesofauna is one group of soil biodiversity, which take main role of decomposition processes of organic matter. The objective of this research was to investigate the composition and diversity of soil mesofauna at Jobolarangan forest. Soil samples were collected from 8 sampling points which different vegetation types. Soil mesofaunas extracted by modified Barless-Tullgren extractor apparatus for 4 days. The results showed that in the north side of Jobolarangan forest were identified 6 groups of microarthropods, i.e.: Mesostigma and Astigma (Ordo: Acarina), Isotomidae (Ordo: Collembola), Rhinotermitidae (Ordo: Hymenoptera), Staphyllinidae and Carabidae (Ordo: Coleoptera). The group with highest density and wide distribution was Astigma. There were high diversities of soil mesofauna community structure at Jobolarangan forest.
Richness of Phytoplankton and Zooplankton in Water Streams at Jobolarangan Forest  [PDF]
Biodiversitas , 2001,
Abstract: Plankton is components of aquatic ecosystem. Phytoplankton play as primary producers, zooplankton play an important role in the higher order in the transfer of energy primary producers, the alga, to the higher order consumers such as aquatic insects, larval fish, and some adult fish. Streams of Jobolarangan forest may show phytoplankton and zooplankton that unique. The objectives of this research were to know diversity of phytoplankton and zooplankton and to determined their density. Plankton were sampled using 25-30 m mesh net, in three location of streams, i.e.: Parkiran (1773 m asl.), Mrutu (1875 m asl.), and Air Terjun (1600 m asl.). Samples were examined under light microscope for identification, and determined their density/L. Richness of phytoplankton in streams at Jobolarangan forest composed by family of Chlorophyceae, Euglenophyceae (Algae), and Bacillariophyceae. Zooplanktons that were found order of rotifer, cladoceras, and copepods. Allochtonous productivity, low nutrient level, low light level, and flowing water condition caused density of plankton/L in stream at Jobolarangan was low, i.e. 0,064 to 0,232.
Subterranean Types of Endogone Spores in Jobolarangan Forest  [PDF]
Biodiversitas , 2001,
Abstract: Endogone spores are spores produced by Endogone genus of VAM fungi, which are abudant in soil. The objective of the research was to assess the types of Endogone spores found in the soil of Jobolarangan forest. Soil samples were taken based on the dominan vegetation, identification and spores screening were then done to the sample. The result research indicated that there were 5 types of spores, namely: white reticulate, yellow vacuolate, red brown laminate, honey colored sessile, and crenulate.
Comparative anatomy of the absorption roots of terrestrial and epiphytic orchids
Moreira, Ana Sílvia Franco Pinheiro;Isaias, Rosy Mary dos Santos;
Brazilian Archives of Biology and Technology , 2008, DOI: 10.1590/S1516-89132008000100011
Abstract: the present study compared roots of terrestrial and epiphytic orchidaceae, analyzing the anatomical characteristics from an ecological point of view. the material was collected at three different sites in minas gerais / brazil and was fixed in faa. transverse sections were obtained by freehand sections or from material previously embedded in paraplast? or historesin?. the prominent characteristics of the epiphytic group were: significant smaller perimeter, epidermis with 3 or more cell layers, u-thickened exodermal cell walls, o-thickened endodermal cell walls, and a low ratio between the caliber and the number of protoxylem arches. the terrestrial group presented simple or multiseriate epidermis, and exodermis and endodermis with typical casparian strips. the anatomical characteristics should have evolved with several adaptations to distinct environments during evolutionary process.
Biodiversity of Insect Larvae in Streams at Jobolarangan Forest  [PDF]
Biodiversitas , 2001,
Abstract: Insect larvae are macro-invertebrate that becomes the most perfect indicator of aquatic-environmental health. Natural streams usually determined by its insect-larvae community in a good condition, in which their taxonomic diversity and richness are high. The objective of the research was to know the taxonomic diversity and richness of insect-larvae family in streams at Jobolarangan forest. The larvae were sampled using net-surber (dip-net) in three location of streams, i.e.: Parkiran (1773 m asl.), Mrutu (1875 m asl.), and Air Terjun (1600 m asl.). The screened insect-larvae were grouped its family and counted their individual number. The diversity was counted using Shanon-Weiner diversity indices. In this research was found 12 families of insect-larvae consisted of two families of Odonata order, 3 families of Coleopteran order, and a family of Lepidoptera. Nine families identified, while the three insect-larvae i.e. 2 of Coleoptera and 1 of Lepidoptera were not identified yet. The Parkiran station indicated the highest diversity index of 0.1436.
Plants Biodiversity of Jobolarangan Forest Mount Lawu: 1. Cryptogamae  [PDF]
Biodiversitas , 2001,
Abstract: The objectives of the research were to make: (1) a list of Cryptogamic plants at Jobolarangan forest in mount Lawu, and (2) the actual condition of biodiversity conservation of the plants. All Cryptogamic plants on the forest were studied. The procedures of data collection were including species collection in the field, make up herbaria, observation of flora vegetation using transect method, morphology observation in the laboratory, and interview to residents and government administrations. The results showed that in the forest were found 77 species Cryptogamic plants, consisting of 27 species of fungi, 5 species of lichens, 20 species of Bryophyta and 25 species of Pterydophyta. Government and residents had successfully conserved the forest; however fire and illegal logging damaged another part.
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