scholarly journals KEANEKARAGAMAN JENIS VEGETASI TINGKAT POHON DI HUTAN ADAT GUNUNG SOKA DUSUN PADANG SEBATIK KECAMATAN AIR BESAR KABUPATEN LANDAK

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
. Tarsius ◽  
Gusti Hardiansyah
Keyword(s):  
Diversity Index ◽  
Species Abundance ◽  
Forest Tree ◽  
Transect Line ◽  
A Value ◽  
Result Show ◽  
Indigenous Forest ◽  
The Right ◽  
Individual Trees ◽  
Important Value Index

Forest is an ecosystem unit in the form of a stretch of land containing biological natural resourcesdominated by trees in its natural environment which can not be separated from the life of indigineous communities. This study aims to find out the diversity of vegetation types of stand composition trees in Gunung Soka Indigenous Forest. This study used transect method and the transect lineswere determined purposively. There were 4 (four) transect lines with 500 m lenght, 10 m wide to the left and 10 m wide to the right. The observation plot was 20 m, and there were 25 plots, so the total was 1 ha. There were 100 plots to study with 4 transect line so the total area was 4 ha. The result show that there are 23 trees vegetation consists of 13 family, 741 of individual trees in Gunung Soka Indigenous Forest. The highest important value index (INP) was found in engkabang bukit (Shorea pinanga Scheff.) with a value of 82,25, while the lowest important value index was found in keraci (Quercus lucida Roxb.) with a value of 1,42. The Dominance index (C) of trees vegetation is 0,17525 or C = 1 ,which shows that there are more than one dominant tree. The Diversity index (DS) of trees vegetation is closte to 1, which shows moderate diversity of species. The Highest species Abundance index (e) of tree vegetation was found in line 1 with a value of 0,9493, meanwhile the lowest value was found in line 2 with a value of 0,5764.Kata Kunci : Diversity,indigenous forest, tree vegetation

scholarly journals KEANEKARAGAMAN KEPITING BIOLA PADA KAWASAN HUTAN MANGROVE DESA KARIMUNTING KECAMATAN SUNGAI RAYA KEPULAUAN KABUPATEN BENGKAYANG

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Hanafi Hanafi ◽  
M Sofwan Anwari ◽  
Ahmad Yani
Keyword(s):  
Fiddler Crab ◽  
Diversity Index ◽  
Species Abundance ◽  
Similarity Index ◽  
Sampling Technique ◽  
Fiddler Crabs ◽  
Species Diversity Index ◽  
Transect Line ◽  
Species Similarity ◽  
Index Value

Karimunting Village is a coastal area that has a mangrove with contained several faunas in it, one of which is a fiddler crab. The fiddler crab is a Decapoda ordo and it is included in the Ocypodidae family. This study aims to collect data on the diversity of fiddler crabs in Karimunting Village. The method used in this study is a survey, while the sample is collected by applying the transect line with a purposive sampling technique. The transect line is 500 m length, with a total of three lanes. There are ten plots of 1x1 meter in size in each transect lines to pick up fiddler crabs. Fiddler crabs species were found in 6 species, namely Uca paradussumieri, Uca annulipes, Uca forcipata, Uca rosea, Uca crassipes and Uca tetragonon. The Shannon-Winner species diversity index (H') of fiddler crabs in 1st and 2nd lanes both are categorized medium, while in the 3rd lane is categorized low. The range of values H'=0,3-1,5. The value of species abundance index (Xi) ranges from 3-16.6 ind/m2. The value of evenness index (e) ranges from 0,72 to 0,84. The dominance index value (C) ranges from 0,3 to 0,5 categorized as the absence of the dominant species of fiddler crab. Comparison of species similarity index (IS) for each lane is categorized differently, for the 1st and 2nd lane the index is 91% and categorized as having high species similarity, then in 2nd and 3rd lane the index is 75% and categorized as having a medium species similarity, whereas the index for 1st and 3rd is 60%, therefore it is categorized as having low species similarity.Keyword: Diversity, Fiddler Crab, Karimunting Village

scholarly journals Komposisi, Struktur, Dan Keanekaragaman Jenis Vegetasi Di Jalur Wisata Air Terjun Wiyono Atas Taman Hutan Raya Wan Abdul Rachman Provinsi Lampung

2016 ◽  
Vol 4 (3) ◽  
pp. 83
Author(s):  
Ardiyansa Dwi Saputra ◽  
Indriyanto Indriyanto ◽  
Duryat Duryat
Keyword(s):  
Sampling Method ◽  
Diversity Index ◽  
Species Structure ◽  
Low Density ◽  
Vegetation Density ◽  
Plant Composition ◽  
Forest Park ◽  
Tourism Potential ◽  
The Right ◽  
Important Value Index

Wan Abdul Rachman Grand Forest Park has a potential of natural resources that can be used as natural attractions. One of the tourism potential is The Waterfall of Wiyono Atas.  In addition, plant diversity found around the waterfall also has a potential to support the tourism.   The aims of the research was to figure out the composition of plant species, structure of vegetation based on the density of each growth phase, and diversity of plant along the tourism track. The research was conducted in May—June 2015. Vegetation analysis with aterraced plot was employed as sampling method, that was consisting 44 plots which were 22 plots for left track and 22 plots for right track, and the distance between plots was 80 m.  The analysis of density, frequency, dominance, important value  index, Shannon diversity index, and canopy stratification were used as data analysis. The results showed that the plant composition along the tourism track was made up of 28 species in the left track and 31 species in the right track.  The vegetation density of tourism track was classified as high on seedling phase for 11,600 individu/ha, sapling phase 1,880 individu/ha, and it was classified low density on pole phase for 350 individu/ha, and tree phase for 63.64 individu/ha on the left track, while on the right track, vegetatation density was classified as high on seedling phase for 10,900 individu/ha, sapling phase for 1,140 individu/ha, and classified low density on pole phase for 309.09 individu/ha, and tree phase for 86.36 individu/ha.  The vegetation former, consist of 5 stratum, ranging from stratum A, B, C, D, and E.  The diversity in the tourism track was classified as low, with the value of diversity in the left track of 1.197 and the right track of 1.189. Keywords: composition, diversity, Grand Forest Park, structures

scholarly journals Keanekaragaman Kupu-Kupu di Bendungan Ulung Peliang Kecamatan Tamako Kepulauan Sangihe, Sulawesi Utara

2020 ◽  
Vol 10 (2) ◽  
pp. 63
Author(s):  
Sabatini Hengkengbala ◽  
Roni Koneri ◽  
Deidy Katili
Keyword(s):  
Diversity Index ◽  
Species Abundance ◽  
Sampling Technique ◽  
Wealth Index ◽  
Butterfly Species ◽  
Diversity Analysis ◽  
Edge Habitat ◽  
Number Of Species ◽  
Transect Line ◽  
North Sulawesi

ABSTRAKKupu-kupu merupakan serangga yang termasuk dalam ordo Lepidoptera. Serangga tersebut memiliki peranan yang penting dalam suatu ekosistem yaitu mempertahankan keseimbangan ekosistem dan memperkaya keanekaragaman hayati di alam. Penelitian ini bertujuan untuk menganalisis keanekaragaman kupu-kupu di kawasan Bendungan Ulung Peliang, Kecamatan Tamako, Kabupaten Kepulauan Sangihe, Sulawesi Utara. Teknik pengambilan sampel menggunakan metoda transek. Pengambilan sampel dilakukan pada tiga tipe habitat yaitu habitat pinggir bendungan, hutan dan kebun. Pada masing-masing habitat dibuat transek dengan panjang 300m. Pengambilan sampel kupu-kupu dilakukan sepanjang garis transek menggunakan sweepnet. Komposisi kupu-kupu yang diperoleh terdiri dari 5 famili, 30 spesies dan 463 individu. Famili yang paling banyak ditemukan jumlah spesies dan individunya adalah Nymphalidae. Spesies yang memiliki kelimpahan tertinggi adalah Junonia hedonia intermedia dan Eurema tominia. Analisis keanekaragaman didapatkan bahwa indek kekayaan, indek keanekaragaman dan indek kemerataan spesies kupu-kupu tertinggi ditemukan pada habitat kebun, sedangkan kelimpahan spesies tertinggi terdapat pada habitat pinggir bendungan.Kata kunci: Keanekaragaman; kupu-kupu; Bendungan Ulung Peliang; Kepulauan SangiheABSTRACTButterflies are insects that are included in the order Lepidoptera. Theses insects have an important role in ecosystem that is to maintain the balance of the ecosystem and enrich the biodiversity in nature. This study aims to analyze the diversity of butterflies in the area of Ulung Peliang Dam, Tamako District, Sangihe Islands Regency, North Sulawesi. The sampling technique used the transect method. Sampling has been carried out in three types of habitats namely dam, forest and garden habitat. Each transect has been made with a length of 300m. Butterfly sampling was carried out along the transect line using. The composition of butterflies that habve been obtained consisted of 5 families, 30 species and 463 individuals. The most abundant family with a number of species and individuals is Nymphalidae. Species that have the highest abundance are Junonia hedonia intermedia and Eurema tominia. Diversity analysis found that the highest wealth index, diversity index and evenness species of butterfly species were found in the garden habitat, while the highest species abundance was in the dam edge habitat. Keywords: Diversity; butterfly; Ulung Peliang Dam; Sangihe Islands.

scholarly journals Coral Fishes of Chaetodontidae in North Salawaty and South Batanta Districts, Raja Ampat Regency, West Papua Province

2017 ◽  
Vol 5 (1) ◽  
pp. 97
Author(s):  
Ari B. Rondonuwu ◽  
Lawrence J. L. Lumingas ◽  
Nego E. Bataragoa
Keyword(s):  
Diversity Index ◽  
Species Abundance ◽  
Ecological Indices ◽  
Total Abundance ◽  
Visual Census ◽  
Number Of Species ◽  
West Papua ◽  
Coral Fish ◽  
The Right ◽  
Number Of Individuals

The objective of this study was to examine the general condition of Chaetodontidae fish in North Salawati and South Batanta Districts, i.e. species composition and number of species, abundance and density of individuals, as well as ecological indices.  Data were collected by using Visual Census method with a 70 m-transect, width 2.5 m to the left and 2.5 m to the right. Therefore, the total area observed was 350 m2. This study found 6 (six) genera with 32 species and total abundance of 791 individuals, Chaetodon, Chelmon, Coradion, Heniochus, Hemitaurichthys and Forcipiger.  Based on number of species, the studied area had highly diverse coral fish species.  Chaetodon lunulatus and C. kleinii were the most species found with the highest number of individuals. Station KBS01 had highest number of species and individual abundance. Diversity index was 2 < H’ < 3 meaning that the coral fish communities in both districts were stable.Keywords : Coral Fishes, Chaetodontidae, Raja Ampat Island. Abstrak Tujuan penelitian ini secara umum adalah untuk mengkaji kondisi existing ikan karang famili chaetodontidae di Kecamatan Salawati Utara dan Kecamatan Batanta Selatan, yaitu komposisi dan jumlah spesies, kelimpahan individu, dan indeks ekologi. Pengambilan data dilakukan menggunakan metode Sensus Visual dengan panjang garis transek 70 m, lebar pengamatan 2,5 meter ke kiri dan 2,5 meter ke kanan.  Dengan demikian, luas areal pengamatan adalah 350 m2. Penelitian ini menemukan  6 (enam) genera dengan 32 spesies dan kelimpahan individu total 791 individu terdiri dari Chaetodon, Chelmon, Coradion, Heniochus, Hemitaurichthys dan Forcipiger dengan 32 spesies. Oleh Karena itu, wilayah ini  memiliki keanekaragaman jenis ikan karang yang tinggi dimana Chaetodon lunulatus dan C. kleinii  paling sering ditemukan dengan jumlah individu tertinggi.   Stasiun KBS01 memiliki jumlah spesies dan kelimpahan individu tertinggi. Nilai indeks keanekaragaman berada pada kisaran    2 < H’< 3 yang berarti bahwa komunitas ikan karang di kecamatan ini  dinyatakan stabil.  

scholarly journals Identifikasi Potensi Permudaan Alam Di Hutan Rawa Gambut Taman Hutan Raya Orang Kayo Hitam Provinsi Jambi Pasca Kebakaran Hutan

2021 ◽  
Vol 14 (1) ◽  
pp. 42-51
Author(s):  
Rike Puspitasari Tamin ◽  
Maria Ulfa ◽  
Zuhratus Saleh
Keyword(s):  
Forest Fires ◽  
Diversity Index ◽  
Wealth Index ◽  
A Value ◽  
Peat Swamp ◽  
Wiener Diversity Index ◽  
Local Species ◽  
Ecosystem Regeneration ◽  
The University ◽  
Important Value Index

AbstrakRegenerasi dan restorasi hutan rawa gambut merupakan hal yang sulit terjadi secara alami. Restorasi ekosistem bukan hanya membuat tegakan baru tetapi juga harus berbasis keanekaragaman hayati lokal untuk membuat peluang berhasilnya menjadi lebih tinggi. Tujuan dari penelitian ini adalah mendapatkan data mengenai potensi permudaan alam dalam rangka regenerasi dan restorasi lahan gambut di Tahura Orang Kayo Hitam pasca kebakaran hutan. Penelitian ini dilaksanakan selama 7 bulan, yaitu dari Maret sampai Oktober 2019 di Tahura Orang Kayo Hitam, Herbarium Fakultas Kehutanan Universitas Jambi dan Laboratorium Silvikultur dan Manajemen Universitas Jambi. Metode yang digunakan adalah kombinasi transek dengan garis berpetak. Hasil penelitian menunjukkan bahwa terdapat 29 jenis anakan alam yang tergabung dalam 19 famili tumbuhan. Jenis yang paling dominan adalah arang-arang (Diospyros mangiayi) diikuti oleh meranti bunga (Shorea teijsmanniana) dengan Indeks Nilai Penting (INP) berturut-turut sebesar 20,10% dan 19,33%. Indeks kekayaan Margaleff D= 4,88, indeks keanekaragaman Shannon-Wiener H’= 2,96 dan indeks Evennes E= 0,88. Nilai dari semua indeks menunjukkan kondisi permudaan alam yang cukup baik di Tahura Orang Kayo Hitam. Hal ini diharapkan mampu menjadi pendorong dalam restorasi ekosistem yang berbasis jenis lokal untuk masa depan hutan rawa gambut. Abstract Regeneration and restoration of peat swamp forests is a difficult thing to happen naturally. Ecosystem regeneration and restoration not only create new stands but must also be based on local biodiversity to make the chances of success even higher. The purpose of this study is to obtain data and information about the potential of seedlings for the regeneration and restoration of peatlands in Tahura Orang Kayo Hitam after forest fires. This research was conducted for 7 months from March to October 2019 with locations in Orang Kayo Hitam Tahura, Herbarium of the Faculty of Forestry at the University of Jambi and the University of Jambi's Silviculture and Management Laboratory. The most dominant types are arang-arang (Diospyros mangiayi) followed by meranti bunga (Shorea teijsmanniana) with Important Value Index (INP) respectively of 20.10% and 19.33%. Margaleff's Wealth Index D= 4, 88. The Shannon-Wiener Diversity Index shows a value of H 'of 2.96 and the Index of Evennes indicates a value of E= 0.88. The values obtained from all of the measured indices indicate the condition of natural regeneration which is quite good in Tahura Orang Kayo Hitam. This is expected to lead to local species-based ecosystem restoration for the future of peat swamp forests.

STRUKTUR KOMUNITAS MAKRO ALGA DI PESISIR PULAU KECAMATAN BULANG

SIMBIOSA ◽  
2014 ◽  
Vol 3 (2) ◽  
Author(s):  
Notowinarto Notowinarto ◽  
Ramses Ramses ◽  
Mulhairi Mulhairi
Keyword(s):  
Community Structure ◽  
Diversity Index ◽  
Algal Species ◽  
Algal Communities ◽  
Marine Life ◽  
Ph Values ◽  
Abundance Patterns ◽  
Coastal Marine ◽  
Temperature Parameter ◽  
Important Value Index

Bulang districts Batam Islands of  Riau province (Riau Islands), its consists of many islands with as well as having the potential diversity of coastal marine life in particular kinds of macro algae or seaweed. Conducted research aimed to determine the structure of macro- algal communities in the intertidal zone islands. The results of the identification of algal species found 16 species are: the Order of Chlorophyceae as 6 spesies; Order Phaeophyceae as 2 spesies; and Order Rhodophyceae as 8 spesies. The community structure at the five stations showed the highest values were found in the island of dominance Cicir (D ' = 0.79) , uniformity index values on Tengah Island (E ' = 0.99) , while the island Balak had the highest diversity index (H ' = 0.88) , with the abundance patterns of population structure on the island is pretty good Central . Results of correlation analysis of regression between IVI types of algae with the conditions of environmental quality suggests that there is a significance (Fhit ˃ F table and the value of r = > 90 %) between IVI algae Halimeda sp and Cryptarachne polyglandulosa at each station with a temperature parameter surface (⁰C) , depth temperature (⁰C) and pH values. Keywords : Algae, Community Structure, Important Value Index.

Update on the Boundaries of the Curly Birch Range

2020 ◽  
pp. 9-21
Author(s):  
L.V. Vetchinnikova ◽  
◽  
A.F. Titov ◽  
◽  
Keyword(s):  
Population Size ◽  
Natural Populations ◽  
Forest Tree ◽  
Published Data ◽  
Population Approach ◽  
Key Factors ◽  
History Of ◽  
Individual Trees ◽  
Karelian Birch

The article reports on the application of the best known principles for mapping natural populations of curly (Karelian) birch Betula pendula Roth var. carelica (Mercklin) Hämet-Ahti – one of the most appealing representatives of the forest tree flora. Relying on the synthesis and analysis of the published data amassed over nearly 100 years and the data from own full-scale studies done in the past few decades almost throughout the area where curly birch has grown naturally, it is concluded that its range outlined in the middle of the 20th century and since then hardly revised is outdated. The key factors and reasons necessitating its revision are specified. Herewith it is suggested that the range is delineated using the population approach, and the key element will be the critical population size below which the population is no longer viable in the long term. This approach implies that the boundaries of the taxon range depend on the boundaries of local populations (rather than the locations of individual trees or small clumps of trees), the size of which should not be lower than the critical value, which is supposed to be around 100–500 trees for curly birch. A schematic map of the curly birch range delineated using this approach is provided. We specially address the problem of determining the minimum population size to secure genetic diversity maintenance. The advantages of the population approach to delineating the distribution range of curly birch with regard to its biological features are highlighted. The authors argue that it enables a more accurate delineation of the range; shows the natural evolutionary history of the taxon (although it is not yet officially recognized as a species) and its range; can be relatively easily updated (e.g. depending on the scope of reintroduction); should be taken into account when working on the strategy of conservation and other actions designed to maintain and regenerate this unique representative of the forest tree flora.

The Culture of Criticism

PMLA ◽  
1984 ◽  
Vol 99 (3) ◽  
pp. 371-397 ◽  
Author(s):  
Geoffrey H. Hartman
Keyword(s):  
Walter Benjamin ◽  
Social World ◽  
Private Life ◽  
Literary Studies ◽  
Form Of Life ◽  
A Value ◽  
Life Itself ◽  
The Right

For those who approach literary studies with literary sensitivity, an immediate problem arises. They cannot overlook style, their own or that of others. Through their concern with literature they have become aware that understanding is a mediated activity and that style is an index of how the writer deals with the consciousness of mediation. Style is not cognitive only; it is also recognitive, a signal betraying the writer's relation, or sometimes the relation of a type of discourse, to a historical and social world. To say that of course words are a form of life is not enough: words at this level of style intend a statement about life itself in relation to words, and in particular to literature as a value-laden act. Thus, even without fully understanding it, one is alerted by a similarity in the opening of these two essays: The Right Reverend Father in God, Lancelot Bishop of Winchester, died on September 26th, 1626. During his lifetime he enjoyed a distinguished reputation for the excellence of his sermons, for the conduct of his diocese, for his ability in controversy displayed against Cardinal Bellarmine, and for the decorum and devotion of his private life. (Eliot, Lancelot 13) One afternoon, Walter Benjamin was sitting inside the Café des Deux Magots in Saint Germain des Prés when he was struck with compelling force by the idea of drawing a diagram of his life, and knew at the same moment exactly how it was to be done. He drew the diagram, and with utterly typical ill-luck lost it again a year or two later. The diagram, not surprisingly, was a labyrinth. (Eagleton, Pref.)

scholarly journals Distance Effects on Diversity and Abundance of the Flower Visitors of Ocimum kilimandscharicum in the Kakamega Forest Ecosystem

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Hellen K. Mandela ◽  
Mugatsia H. Tsingalia ◽  
Mary Gikungu ◽  
Wilbur M. Lwande
Keyword(s):  
Species Diversity ◽  
Diversity Index ◽  
Land Use Changes ◽  
Species Abundance ◽  
Diversity Indices ◽  
Forest Edge ◽  
Flower Visitors ◽  
Kakamega Forest ◽  
Species Invasions ◽  
Wiener Diversity Index

Pollination is an important ecosystem service in the maintenance of biodiversity and most importantly in food production. Pollination is on the decline due to habitat loss, exotic species invasions, pollution, overharvesting, and land use changes. This study analyzed the abundance and diversity of flower visitors’ of Ocimum kilimandscharicum in Kakamega forest with increasing distance from the forest edge. Data were collected through direct observation and sweep netting. Six study sites were identified along two transects each 2.5 km long and labeled A to F. Distance in metres from the forest edge to each site was A=221, B=72, C=83, D=198, E=113, and F=50. Sampling was done from 7:30 am to 4:00 pm, three days in a week for five months consecutively. Diversity indices of different flower visitors were calculated using the Shannon-Wiener diversity index. One-way analysis of variance was used to compare differences between sites and a two-sample t-test was used to identify mean significant differences in species diversity between the closest and the furthest sites. A total of 645 individuals belonging to 35 species were captured from 4 families. The highest diversity was at site F (H’= 2.38) which was closest to the forest edge and the lowest diversity was from site A (H’=1.44) which was furthest from the forest edge. Distance from the forest edge significantly influenced species diversity (F(3, 20)=14.67, p=0.024). Distance from the forest edge also significantly influenced species abundance between the furthest sites A, D, and E and the nearest sites F, B, and C to the forest edge (t=4.177; p=0.0312) and species richness (t=3.2893; p=0.0187). This study clearly demonstrates that Ocimum kilimandscharicum flower visitors play essential roles in pollination and their higher number of visits translates into higher numbers of seeds set. Many of these pollinators are associated with the forest and hence the need to conserve the Kakamega forest as a source pool for pollinators.

scholarly journals The use of Shanon Weiners diversity index in the assessment of floral diversity and equitability of Neni–Nimo Watershed in Anaocha L.G.A. of Anambra State, Nigeria

2021 ◽  
Vol 16 (2) ◽  
pp. 155-158
Author(s):  
Ezenwatah Ifeoma Susan ◽  
Ukpaka Chukwujekwu Gratius ◽  
Onyemeka Regland Michael ◽  
Afulukwe Stella Chinyere ◽  
Okoye Elochukwu Chidubem Sunday
Keyword(s):  
Species Richness ◽  
Plant Growth ◽  
Diversity Index ◽  
Block Design ◽  
Species Abundance ◽  
P Value ◽  
Growth Forms ◽  
Anambra State ◽  
Floral Diversity ◽  
Current Usage

The study on the floral diversity of Neni-Nimo watershed in Anaocha L.G.A. of Anambra State was conducted between November 2009 and July 2020. The aim of the study was to find out the species richness and the floral biodiversity of the watershed. In this study, the watershed was divided into three sites, the forested site, the fallow site and the current usage site. The experiment was laid out in a Randomized Complete Block Design. The ecological methods used in this study are the Point Centred Plotless Count sampling technique for areas dominated by trees while the Plot Count technique using quadrats were used for sampling the areas dominated by forbs, shrubs, climbers and grasses. The vegetation data collected was used to estimate the species richness of the different plant growth forms, the diversity and equitability of the various growth forms encountered were calculated using Shanon Weiners diversity index. The Shanno Weiners diversity index shows that the forested areas had the highest floral biodiversity than the fallow and current usage area. Regression analysis shows that a significant relationship exists between species abundance and floral biodiversity at a p-value of <0.05 for all plant growth forms in the watershed except for grasses and as abundance increases, diversity also increases.

Sign in / Sign up

Export Citation Format

Share Document