scholarly journals Keanekaragaman Vegetasi Pohon pada Lahan Pekarangan di Desa Tambakrejo Kecamatan Jombang Kabupaten Jombang

2021 ◽  
Vol 5 (2) ◽  
pp. 23-28
Author(s):  
Indah Fitriani ◽  
Nur Faisal Andani ◽  
Anggi Indah Yuliana ◽  
Ahmad Syaifudin
Keyword(s):  
Data Analysis ◽  
Diversity Index ◽  
Residential Areas ◽  
Importance Value Index ◽  
Importance Value ◽  
H Index ◽  
Purposive Sampling ◽  
Medium Level ◽  
Index Value ◽  
Important Value Index

Tambakrejo Village is an urban area located in the Jombang District. Tree vegetation continues to decline; one of the factors is the conversion of the function of yardland to residential areas. Changes in the land area will impact the structure of tree vegetation. This research was conducted by purposive sampling in 4 hamlets. Transects and species were included as random effects using the transect quadrat method (quadrat transect) by purposive sampling with tree size (10x10 m<sup>2</sup>). The data analysis was done qualitatively and quantitatively. Quantitative data analysis using vegetation analysis, namely: Importance Value Index (IVI), Dominance (C), and Diversity Index (Ĥ). Strata 3 tree vegetation H’ index in Tambakrejo Village, each hamlet is different, for Tambakberas Hamlet, H’ index value is 3.11%, Gedang Hamlet 2.97%, Nglungu Hamlet 2.91%, and for Petengan Hamlet 2, 89%. Most of the hamlets in Tambakrejo Village fall into medium-level diversity. INP index of Tambakberas Hamlet of 22.59% and lowest 2.07%. Gedang of 27.57% and lowest 2.84%, Nglungu of 19.76%, and lowest 2.86% Petengan of 28.79% and lowest 2.73%, The lowest Important Value Index is due to the transfer of the function of yard land for residential areas.

scholarly journals Analisis Vegetasi Tumbuhan Herba di Hutan Lingkungan Kampus Unwira Penfui Kupang

2020 ◽  
Vol 5 (2) ◽  
pp. 57-62
Author(s):  
Imelda Tidora Sombo ◽  
Florentina Y. Sepe ◽  
Getrudis W. Nau ◽  
Maria Novita I. Buku ◽  
Aloysius Djalo
Keyword(s):  
Diversity Index ◽  
Sampling Point ◽  
Bidens Pilosa ◽  
Importance Value Index ◽  
Importance Value ◽  
Vegetation Diversity ◽  
Campus Environment ◽  
Herbal Plants ◽  
Index Value ◽  
Number Of Individuals

This study aims to determine the spread of herbal vegetation in the environment of the campus environment of UNWIRA Penfui Kupang, by applying vegetation parameters including density, relative density, frequency, relative frequency, dominance, relative dominance, Importance Value Index (INP), and Comparison Important Value (SDR). The method used in this study is the quadratic method, with the determination of the sampling point divided into two observation stations, based on open and sheltered areas with each station there are 5 observation plots with a size of 1x1 m2. The results of research conducted in the environment of the campus environment of UNWIRA Penfui Kupang found 7 types of herbal plants namely Solanum nigrum, Mussaenda frondosa, Oplismenus hirtellus, Amaranthus viridis, Eclipta L, Bidens pilosa, Imperata cylindrical and the composition of the highest number of individuals were Oplismenus hirtellus. The amount of diversity index value of basket grass plants (Oplismenus hirtellus) is 0.146 with a large amount of basket grass plants tend to be more stable compared to the other 6 plants found. Index value of vegetation diversity of herbaceous plants obtained is 0.782, so species diversity is lacking.

scholarly journals Analisis Is Structure and Vegetation Composition Increases Tree and Pillar at Hutan Lindung Oereu Village Bani Bani Is Io Kufeudistrict Malacca Regency

2020 ◽  
Vol 5 (1) ◽  
pp. 24-36
Author(s):  
Angela Niis
Keyword(s):  
Basal Area ◽  
Tectona Grandis ◽  
Tree Level ◽  
Importance Value Index ◽  
Importance Value ◽  
Transect Line ◽  
Absolute Density ◽  
The One ◽  
Index Value ◽  
Important Value Index

The purpose of this study was to determine the tree and pole-level plant species found in the Oereu Protected Forest Bani-Bani Village Io Kufeu District of Malacca District, To find out the structure and composition of tree-level plant vegetation and poles found in the Oereu Protected Forest in the Bani-Bani Village District of Io Kufeu District of Malacca, and To implement research on the structure and composition of tree and pole level vegetation in the Oereu Protection Forest of Desa Bani-Bani District of Io Kufeu District of Malacca in learning biology in schools. The method used in this study is the quadratic method by placing a plot beside the transect line. At each transect line, 5 observation plots were placed with the size of each plot 20 mx 20 m = 400 m2 for tree level, and 10 mx 10 m = 100 m2 for pole level, with a distance between plots 25 m. analyzing the structure and composition of tree-level vegetation, and poles found at research sites, namely by calculating absolute density, relative density, absolute frequency, relative frequency, basal area, relative basal area, and important value index. The results of the study were found as many as 13 types of plants consisting of 11 families. When looking at the importance value index at tree level vegetation, the highest important value index is Tectona grandis, L, 57.35%, while the one with the lowest important value index is Alstonia scholaris, L 13.22%, and at pole level vegetation, the index value the highest importance is Tectona grandis, L, 36.33%, while the one with the lowest important value index is Leucena lenccophalla, 16.25%. The type of vegetation that has the highest important value index is because it has a fairly high distribution ability and can adapt well to its environment.

scholarly journals Assessing the sustainability of traditional agroforestry practices: a case of Mamar agroforestry in Kupang-Indonesia

2021 ◽  
pp. 438-457
Author(s):  
Alfred Umbu Kuala Ngaji ◽  
Muhammad Baiquni ◽  
Hatma Suryatmojo ◽  
Eko Haryono
Keyword(s):  
Ecosystem Services ◽  
Diversity Index ◽  
Importance Value Index ◽  
Importance Value ◽  
The People ◽  
Change Of Perspective ◽  
Traditional Agroforestry ◽  
Cultural Functions ◽  
Important Value Index ◽  
West Timor

A traditional agroforestry of West Timor, namely Mamar, produces important ecosystem services to the people of this arid region, however, its management tends to change, thereby disrupting its sustainability. This study aims to assess the sustainability of Mamar agroforestry by analyzing the livelihood assests of the community, the biophysical land performance of the soil, and the value of ecosystem services. Furthermore, data, on perception and livelihood assets; the level of soil damage, the importance value index, and diversity index, the value of ecosystem services based on the opinion of experts and community leaders, as well as change in land use were collected in five villages in Kupang district using surveys with a qualitative and quantitative approach. The results showed a change of perspective in Mamar's management; the decrease in the important value index of cultural crops, the diversity index is classified as declining, there is soil damage in several parameters, and the value of ecosystem services does not focus on cultural services. Considering this result, there is a socio-ecological trade-off that reduces support for the sustainability of  Mamar as traditional agroforestry that emphasizes socio-cultural functions.

scholarly journals Tree diversity, stand structure and community composition in tropical forest of Rajaji tiger reserve, Northern India

2018 ◽  
Vol 10 (3) ◽  
pp. 945-953 ◽  
Author(s):  
Akash . ◽  
Navneet . ◽  
B.S. Bhandari
Keyword(s):  
Tropical Forest ◽  
Community Composition ◽  
Stand Structure ◽  
Diversity Index ◽  
Stand Density ◽  
Tree Diversity ◽  
Importance Value Index ◽  
Importance Value ◽  
Northern India ◽  
Tiger Reserve

In present study, we present data on tree diversity, stand structures and community composition in six sites of tropical forest in Rajaji tiger reserve, Northern India. The enumeration of 72 plots results a total of 19,050 individuals, 47 species, 42 genera, 25 families in which Holoptelia integrifolea, Dalbergia sissoo, Shorea robusta, Cassia fistula and Trewia nudiflora were the species which showed higher importance value index (IVI) in the study area. The stand density of the six sites ranges from 149.99 - 397.91 hac-1 where as the total basal area of trees ranges from 3.612 - 46.813 m2/hac-1. The Shannon diversity index ranged from 1.35 to 2.51, Simpson index ranged from 0.097 - 0.446, Margalef index ranged 2.584 - 4.9, The Evenness index ranged from  0.551 - 0.852 in the study area. Further the studied area has showed ample evidences from indices in supporting the higher floristic diversity and stand structure after providing the present area as a status of tiger reserve.

scholarly journals Assessment and Composition of Fish in the River District Maro Merauke

2018 ◽  
Vol 73 ◽  
pp. 04006
Author(s):  
Edy H.P Melmambessy ◽  
Irianis L. Latuperissa ◽  
Marius Agustinus Welliken ◽  
Nova Suryawati Monika ◽  
Rosa Delima Pangaribuan
Keyword(s):  
Data Analysis ◽  
Species Composition ◽  
Diversity Index ◽  
Survey Method ◽  
Frequency Diversity ◽  
Lates Calcarifer ◽  
Dominance Index ◽  
Gill Net ◽  
Scomberomorus Commerson ◽  
Index Value

Maro River is one of the major rivers in Merauke Regency that has a width of about 43-900 m and length of 300 km. The purpose of this study is to find out the type and composition of fish caught using gill net in Maro River, Merauke Regency. This study was conducted in Maro River, Merauke Regency from May to June 2014. It was conducted using survey method. The data analysis included: species composition, relative abundance, availability frequency, diversity index and dominance index. The results of showed 1,084 fish in 17 species with the following composition; 490 of Kurtus gulliveri species (37,01%), 212 of Eleutheronema tetradactylum species (20,33%), 170 of Polydactylus plebeius species (16,30%), 75 of crassilabris Cinetodus species (7,19%), 64 of Cinetodus froggatti species (6,14%), 37 of Argyrosomus amoyensis species (3,55%), 20 of Mugil cephalus species (1,92%), 15 of Megalops cyprinoides species (1,53%), 15 of Thryssa scratchleyi species (1,4%), 12 of Lebtobrama sp species (1,15%), 9 of Lates calcarifer species (0,86%), 7 of Marilyna meraukensis species (0,67%), 7 of Scomberomorus commerson species (0,67%), 5 of Nibea squamosal species (0,48%), 4 of Rhinoptera javanica species (0,38%), 3 of Harpadon microchir species (0,29%) and 1 of Datnioides campbelli species (0,10%). Based on the availability frequency, there are 37 species with a percentage of 100%, 37 species with 67% and 7 species with 33%. The diversity of fish has a moderate value of 1<H’<3. The obtained dominance index value is close to 0, then it is stated that there is no species found to be dominant.

Diversity of Weeds and Population Dynamics of Predators and Prey Present in Wheat-Mustard Ecosystem at Paklihawa, Rupandehi, Nepal

2018 ◽  
Vol 35 (1) ◽  
pp. 173-181
Author(s):  
S. Khanal ◽  
S. Adhikari ◽  
A. Bhattarai ◽  
S. Shrestha
Keyword(s):  
Population Dynamics ◽  
Chenopodium Album ◽  
Effect Of Temperature ◽  
Weed Species ◽  
Importance Value Index ◽  
Importance Value ◽  
Mustard Aphid ◽  
Wooden Frame ◽  
Index Value ◽  
The Given

A study was conducted at Institute of Agriculture and Animal Science (IAAS), Paklihawa Rupandehi, agronomy field to study the diversity of weeds and population dynamics of predators and prey in wheat-mustard ecosystem. The study was conducted by quadrate sampling method using the wooden frame by selecting 40 sample spots, and locating its coordinates. Predator, prey, some of the beneficial and harmful insects as well as weed species was recorded in 5 days interval in the study. Relationships between the population of the mustard aphid and wheat aphid, lady bird beetle to maximum and minimum temperature were recorded in order to know the effect of temperature in relation to population density. Number of mustard aphid and its nymph has shown the positive significant relationship with the population of the spider in the wheat mustard ecosystem. Shannon Weiner Index value was calculated and the species richness was found to be 2.63 with the effective number of species value 9. The species evenness value was found to be 0.83 in the studied ecosystem which signifies that the given weed ecosystem is somewhat even. The importance value index (IVI) of the given ecosystem with the value of different weed species was calculated and it was found that the weed Anagalis arvensis was ranked as first with the IVI value of 57.98 following Vicia sativa and Chenopodium album. This signifies that the species Anagalis arvensis has greater control over the wheat mustard ecosystem of Paklihawa, Rupandehi.

scholarly journals IKTIODIVERSITAS DI SUNGAI WANGGO KAMPUNG ERAMBU DISTRIK SOTA KABUPATEN MERAUKE

2019 ◽  
pp. 56-63
Author(s):  
Edmondus K. Laratmase ◽  
Norce Mote ◽  
Edy HP. Melmambessy
Keyword(s):  
Data Analysis ◽  
Survey Data ◽  
Diversity Index ◽  
Total Catch ◽  
Evenness Index ◽  
Index Value

This study aims to determine the diversity of fish in the River Wanggo District Sota Merauke regency. This research was conducted in May-July 2017. The method used in this research is The method used is survey.  Data analysis used are Species Wealth, Diversity Index (H'), Evenness Index (E), Domination Index (D). The results of the study there are 25 species of fish with a total catch of 1,392 tails. The index value of Diversity (H ') and moderate (1.10-1.27) whereas fairness values ​​are high (2.39-2.72) and the spread of each species is evenly distributed. No fish dominates all three stations.   Keywords: Ichtiyodiversity; Wanggo River; Merauke.  

scholarly journals Dragonflies in Bawean Island Nature Reserve, Indonesia

2020 ◽  
Vol 10 (1) ◽  
pp. 45-50
Author(s):  
Abdu Rohman ◽  
Setyo Sulistyono ◽  
Wahyu Nuryati ◽  
Ahmad Arifandy ◽  
Aris Setiyanto
Keyword(s):  
Data Analysis ◽  
Data Collection ◽  
Dominant Species ◽  
Nature Reserve ◽  
Diversity Index ◽  
Moderate Level ◽  
Vertebrate Species ◽  
H Index ◽  
A Value ◽  
Observation Method

Bawaean Island is known for its endemic Bawa deer and other vertebrate species of mammals, avians and reptiles. However, little is known about the invertebrates, especially the Odonata (dragonflies) group. The aim of this study was to examine the variety of dragonflies on the Bawaean Island. The observation method was employed for data collection while the Shannon-Weinner Diversity Index was used for data analysis. A total of 23 dragonflies’ species consisting of four families were collected throughout the study. These include Coegnagrionidae (6 species), Libellulidae (13 species), Platycnemididae (2 species) and Aeshnidae (1 species). Ischnura senegalensis is the most dominant species. The diversity index (absolute H index) shows a moderate level of diversity in Bawean Island, with a value of 1,007.

scholarly journals ANALISIS VEGETASI DAN KEANEKARAGAMAN TUMBUHAN DI KAWASAN MANIFESTASI GEOTERMAL IE SUUM KECAMATAN MESJID RAYA KABUPATEN ACEH BESAR

2018 ◽  
Vol 5 (2) ◽  
pp. 114
Author(s):  
Muslich Hidayat
Keyword(s):  
Hot Spring ◽  
Diversity Index ◽  
Geothermal Area ◽  
Importance Value Index ◽  
Importance Value ◽  
High Category ◽  
A Value ◽  
Higher Temperature ◽  
Chemical Conditions ◽  
Manifestation Area

Ie Suum geothermal manifestation area is a hot sering resource in Ie Suum Village at Aceh Besar regency. Ie Suum hot spring is a stretch of Seulawah Agam mountain and is one of the most active volcanic mountains in Aceh. This area has higher temperature and soil pH compared to areas far from geothermal areas. Therefore, this study can be associated with the unique characteristics of vegetation of geothermal areas will be different from vegetation plants that exist in other vegetation types. This research was conducted by quadrat transect method by determining the location of the research by purposive sampling divided into four point (station) with size determined based on plant habitus that is: herb (1x1 m2), bush / shrub (2x2 m2), pole ( 5x5 m2), and trees (10x10 m2). Data analysis is done qualitatively and quantitatively. Quantitative analysis of data by using vegetation analysis are: density (Kr), Frequency (Fr), Dominance (Dr), and Diversity Index (Ĥ). The results of the study found 23 families consisting of 34 species with a total number of individuals as many as 534 scattered in 4 observation stations divided into herbaceous plants, shrubs, poles and trees. Important Value Index (INP) vegetation in geothermal manifestation area of Ie Suum in all stations was obtained by INP 225,86%. This value belongs to the high category. The species species that have the highest index of other species Axonopus compressus is 17.02%, while the lowest Importance Value Index is Clidemia hirta with a value of 1.32%. The high value of INP Axonopus compressus is due to this species living on dry soil moisture and high acidity. The biodiversity index (Ĥ) of geothermal area of Ies Suum of Mesjid Raya District of Aceh Besar is Ĥ = 3,508. Vegetation of plants in the geothermal area ie suum belong to the high category due to plants that can adapt to high environmental physical-chemical conditions.

scholarly journals INVENTARISASI JENIS PAKAN LUTUNG JAWA (Trachypithecus auratus) PADA BLOK CILAME DAN BLOK CIMEUDEUM TAMAN WISATA ALAM GUNUNG TAMPOMAS KABUPATEN SUMEDANG

2020 ◽  
Vol 21 (1) ◽  
pp. 17
Author(s):  
Raizal Fahmi Solihat ◽  
Vina Silvia Bintarawati
Keyword(s):  
Species Number ◽  
Habitat Condition ◽  
Importance Value Index ◽  
Importance Value ◽  
Purposive Sampling ◽  
Trachypithecus Auratus ◽  
Hiking Trails ◽  
Bischofia Javanica ◽  
Maesopsis Eminii

Javan Langur (Trachypithecus auratus) is one of folivora species by 50 % leaves, 32% fruits, 13% flowers and 7% insects. The most exist of J. langur in Mt. Tampomas Natural Tourism Park in Block of Cilame and Cimeundeum. Mt. Tampomas Natural Tourism Park is one of hiking trails that cause annoyed vegetation as J. Langur’s feed. The objects of studies are to identify of Javan langur’s feed and Importance Value Index of J. Langur’s feed. The method is purposive sampling to know vegetation of feed. The result of species number were 62 species, include 18 species is a J. Langur’s feed. The J. Langur’s feed are kondang (Ficus variegata), nangsi (Villebrunea rubessen), kadoya (Dysoxylum gaudichaudianum), kiara (Fics altisima), kitambaga (Eugenia cuprea), gadog (Bischofia javanica), hamirung (Vernonia arborea), kibanen (Cryteronia paniculata), huru (Machilus rimota), afrika (Maesopsis eminii), putat (Bringtonia acutangular), sampang (Evodia latifolia), pisitan monyet (Glianthus populacus), kilalayu (Lepisanthes tetraphylla), kihuni (Antidesma bunius), hantap (Sterculia coccinea) dan saninten (Castanopsis argentea). Dominance of Javan Langur feed is kadoya (Dysoxylum gaudichaudianum), kitambaga (Eugenia cuprea), dan huru (Machilus rimota). This mean of habitat condition is available feed to J. langur existing.

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