scholarly journals The Diversity of Holothurioidea in the Intertidal Zone of the Pancur Shore of the Alas Purwo National Park

2015 ◽  
Vol 16 (1) ◽  
pp. 23 ◽  
Author(s):  
Riya Wulan Afrely ◽  
Moh. Imron Rosyidi ◽  
Susantin Fajariyah
Keyword(s):  
Species Diversity ◽  
Intertidal Zone ◽  
National Park ◽  
Sea Cucumber ◽  
Wave Motion ◽  
Diversity Index ◽  
Abiotic Factors ◽  
Species Diversity Index ◽  
Sea Cucumbers ◽  
Benthic Animals

Holothurioidea well known as Sea Cucumber is one of the classes from the Echinodermata phylum. Sea cucumbers are benthic animals that move slowly. Currently they already identified about 1135 species. Their existence usually associated with abiotic factors such as water salinity, temperature, pH, wave motion, light intensity and the substrate. The ability of the Holothurioidea to adapt to the abiotic factors will affect species diversity. The research aims is to determine the species diversity in the intertidal zone at Pancur Shore of the Alas Purwo National Park. It includes the species composition, species diversity index and the index of equality The study was conducted on 14th-21st of June 2014, by using systematic plotting transect method. The results found: one order, one family, two generas and eight species. The Species diversity index of Holothurioidea at Pancur Shore is low (0.930) and the equality index  classified uneven (0.447).Keywords: Holothurioidea, intertidal, diversity, evennes

scholarly journals Diversity of Lepidoptera: Rhopalocera at Selorejo Waterfall Area, Ponorogo District, East Java, Indonesia

2021 ◽  
Vol 3 (2) ◽  
pp. 68-72
Author(s):  
Siti Zulaikha ◽  
Muhamad Azmi Dwi Susanto
Keyword(s):  
Species Diversity ◽  
Natural Environment ◽  
Host Plants ◽  
Nature Reserve ◽  
Diversity Index ◽  
Abiotic Factors ◽  
Species Diversity Index ◽  
Good Environment

Selorejo Waterfall is a natural tourist area that is directly adjacent to the Sigogor Mountain Nature Reserve and has a beautiful and natural environment. This makes the Selorejo Waterfall area has a good environment for the sustainability of various species of butterflies. This research aimed to find out the diversity and abundance of butterflies in the Selorejo Waterfall area. This research was conducted using the Visual Day Flaying method by following the trail in the Selorejo Waterfall area. This study found 26 species belongs 4 families with 109 individuals in total. The value of the species diversity index at the location of H'= 2.81 moderate category. The diversity of butterflies in the Selorejo Waterfall area was influenced by the availability of host plants and feed as well as abiotic factors.

scholarly journals KEANEKARAGAMAN JENIS KUPU-KUPU (ORDO LEPIDOPTERA) PADA RUANG TERBUKA HIJAU KOTA PONTIANAK

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Wina Oktaviati ◽  
Slamet Rifanjani ◽  
Hafiz Ardian
Keyword(s):  
Species Diversity ◽  
Open Space ◽  
Environmental Changes ◽  
Diversity Index ◽  
Abiotic Factors ◽  
Butterfly Species ◽  
Species Diversity Index ◽  
West Kalimantan ◽  
A Value ◽  
Observation Method

Butterflies are one type of insect found in the green open space of Pontianak City. Butterflies can be used as bioindicators of environmental changes because butterflies are very sensitive to biotic and abiotic factors (Rizal, 2007). This study aims to obtain data and analyze the diversity of butterfly species in the green open space of Pontianak City. The study used a field observation method with sweeping net techniques and explored areas in three habitats namely Sylva Untan Arboretum, Untan S1 Forestry Campus and West Kalimantan Governor's Hall Pavilion. The three green open spaces were chosen based on the density and diversity of the vegetation. The results of the study found 22 types of butterflies. The same six types are found in three different types of open green space, namely Leptosia nina, Agamemnon Graphium, Papilio polytes, Hipolimnas bolina, Eurema hecabe, and Appias lybithea. The species diversity index at the Arboretum has a value of 2.74, Campus S1 Forestry Untan with a value of 2.19 and Pendopo Park with a value of 2.02. This value indicates that species diversity in green open space is classified as medium.Keywords: butterfly diversity, green open space, bioindicator

scholarly journals Study on Species Diversity and Stand Structure in Meru Betiri National Park

2015 ◽  
Vol 29 (1) ◽  
Author(s):  
Heru Dwi Riyanto ◽  
Agus Wuryanta
Keyword(s):  
Species Diversity ◽  
National Parks ◽  
National Park ◽  
Forest Ecosystems ◽  
Stand Structure ◽  
Diversity Index ◽  
Reciprocal Relationship ◽  
Species Diversity Index ◽  
Ecosystem Research ◽  
Abiotic Resources

National parks are forest ecosystems that contain biotic and abiotic resources. Biodiversity is the data and information necessary to understand the degree of loss of species diversity and formulate a sustainable alternative of decline in these resources. The research objective is to study the reciprocal relationship between elevation and habitat of a species in an ecosystem. Research conducted at the National Park (TN) Meru Betiri. The results show that there are spatial variabilities of the species diversity based on the elevation in the study area. Elevation is inversely proportional to species diversity index, the higher the elevation, the species diversity index tends to decline, but the index of the importance of endemic species have increased. Group stand structure and species composition is influenced by the level of elevation with their own environment.

scholarly journals Community structure of sea cucumber on Harapan Island and East Penjaliran Island, Kepulauan Seribu National Park, Indonesia

2021 ◽  
Vol 919 (1) ◽  
pp. 012025
Author(s):  
T R Yuniarga ◽  
T B Satriyo ◽  
R I Adharini
Keyword(s):  
National Park ◽  
Sea Cucumber ◽  
Diversity Index ◽  
Data Retrieval ◽  
Quality Parameters ◽  
Marine Animals ◽  
Sea Cucumbers ◽  
Distribution Index ◽  
Stichopus Monotuberculatus ◽  
Holothuria Atra

Abstract Sea cucumbers are marine animals of the Holothuroidea Class that have ecological, health, and socioeconomic benefits. This study aims to determine the structure of the sea cucumber community on Harapan Island and East Penjaliran Island, Kepulauan Seribu National Park, Kepulauan Seribu Regency. Data collection was conducted in January 2020, where each island was divided into two stations, and each station was divided into three substations for data retrieval. The method is a quadratic transect method using a plot measuring 1x1 m. In each square plot, observations were made regarding the type and number of sea cucumbers found and water quality parameters, including salinity, temperature, pH, DO, and total organic matter. Observation parameters include diversity index, uniformity index, frequency, density, important value index, dominance, and sea cucumber distribution index. During the study, species found on Harapan Island include H. atra, H. scabra, H. leucospilota, Bohadschia marmorata, and Stichopus herrmanni. Meanwhile, species found on East Penjaliran Island include H. atra, H. leucospilota, H. coluber, H. pardalis, H. fuscocinerea, H. hilla, Bohadschia marmorata, Stichopus ocellatus, and Stichopus monotuberculatus. The most abundant and predominant species on both islands is Holothuria atra. The average diversity index on Harapan Island falls into the low category, while East Penjaliran Island is classified as medium. The dominance index of both islands is low and has a uniform distribution. Environmental conditions and sea cucumber exploitation affect the structure of sea cucumber communities on both islands.

scholarly journals Struktur Komunitas Semut (Hymenoptera : Formicidae) di Lahan Pertanian Organik dan Anorganik Desa Batur, Kecamatan Getasan, Kabupaten Semarang

2018 ◽  
Vol 19 (2) ◽  
pp. 170
Author(s):  
Ivan Mahadika Putra ◽  
Mochamad Hadi ◽  
Rully Rahadian
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Dominant Species ◽  
Diversity Index ◽  
Abiotic Factors ◽  
Similarity Index ◽  
Terrestrial Ecosystems ◽  
Species Diversity Index ◽  
Ant Communities ◽  
Organic Farm

Ants play an important role in terrestrial ecosystems, including in organic and inorganic farmland, as predators, scavengers, and their interaction with other organism. The objectives of this study were to compare the community structure and the role of the ant in organic and inorganic farmland, and also to determine soil abiotic factors in both farmland. The study was conducted in organic and inorganic chili crop land at Batur village, Getasan, Semarang. The sampling of ants was performed using pitfall traps and bait traps, and then the ants were identified. Data analysis used is an abundance index, diversity index, evenness index, Hutchinson test and similarity index. The results showed that the number of species and the number of individual of ants in organic farm were higher (45 individuals, 8 species) than inorganic farm (35 individuals, 6 species). Diversity index of ant species in both farmlands were categorized moderate with the index value of 1.92 and 1.42. Statistically, there were no significant differences in species diversity of ants in organic and inorganic farmland. There were five dominant species in organic field and three dominant species in inorganic field. Ants that predominate in both farmlands were Iridomyrmexsp, Tetramorium sp, Solenopsisgeminata, Odontoponeradenticulata and Diacammasp. The similarity of ant communities between organic and inorganic farmland showed high value of similarity index (IS) which was 85.7%. Statistically, abiotic factors showed that there were significantly different of some abiotic factors in both farmlands, the content of carbon, phospor, organic matter and c / n ratio. Keywords: community structure of ants, agricultural ecosystems

scholarly journals The Influence of Abiotic Factors on The Diversity and Abudance of Mangrove Crabs (Scylla spp.) in Blok Bedul Alas Purwo National Park Mangrove Forest

2016 ◽  
Vol 16 (2) ◽  
pp. 63
Author(s):  
Rina Sugiarti Dwi Gita ◽  
Sudarmadji Sudarmadji ◽  
Joko Waluyo
Keyword(s):  
National Park ◽  
Diversity Index ◽  
Abiotic Factors ◽  
Research Station ◽  
Mangrove Forests ◽  
Mud Crab ◽  
Species Diversity Index ◽  
Mangrove Crab ◽  
Crab Abundance ◽  
Mud Crabs

The purpose of this study was to determine the diversity, abundance and abiotic factors influence the diversity and abundance of mud crab (Scylla spp.) In mangrove forests Blok Bedul Alas Purwo National Park. This research method uses descriptive quantitative method. Diversity is calculated by using the formula of Shannon Wiener, mangrove crab abundance is calculated using the formula abundance Kreb whereas the method of analysis using simple linear regression. The data used in this research is data such as the number and type of biotic mud crabs and data abiotic form of measurement of temperature, pH, salinity, substrate type, and the tide. This study shows the results include mangrove crab species diversity index of every observation stations in the mangrove forests Blok Bedul Alas Purwo National Park is H '= 0.315 showing that the level of diversity in every station is low. The abundance of mud crabs in the mangrove forests Blok Bedul Alas Purwo National Park is 0.0011 individuals / m² which showed that the level of abundance at relatively low research station. Results of the analysis of the influence of abiotic factors on the diversity and abundance of mud crabs in mangrove forests Blok Bedul National Park Alas Purwo not significant (p> 0.05) the diversity and abundance of mangrove crab.   Keywords : abiotic factors , abundance , diversity , mud crab , regression

scholarly journals Kajian Ekologi Permudaan Saninten (Castanopsis argentea (Bl.) A.DC.) di Taman Nasional Gunung Gede Pangrango, Jawa Barat

2016 ◽  
Vol 13 (1) ◽  
pp. 34 ◽  
Author(s):  
N. M. Heriyanto ◽  
Reny Sawitri ◽  
Didi Subandinata
Keyword(s):  
Species Diversity ◽  
Species Composition ◽  
Density Distribution ◽  
National Park ◽  
Diversity Index ◽  
Seedling Stage ◽  
Tree Level ◽  
Species Diversity Index ◽  
Dominance Index

<p>The study of population and distribution of saninten (Castanopsis argentea (Bl.) A.DC) seedling was conducted in August 2003 at block Pasarean, Cibodas Resort, Gede Pangrango National Park. The square inventory of 20 plots sizing at 2 x 2 m for seedling level and 20 x 20 m for tree level. Regeneration analysis were laid down at 1,300, 1,400, 1,500, 1,600, and 1,700 m asl. The research showed that the species composition of seedling communities at 1,300 and 1,600 m asl was kileho (Saurauia pendula Bl.), at 1,400 and 1,700 m asl was huru (Litsea sp.) and at 1,500 m asl was nangsi (Villebrunea sp.). The highest density distribution of tree and seedling stage of saninten were at 1,400 m asl which were 18 trees/ha and 833 seedlings/ha with dominance index of 0.06. While the highest of species diversity index occured at 1,300 m asl about 3.34 with 35 invidual species. More over, based on altitudinal sites, the value of index similarity was occured between 1,600 m asl and 1,700 m asl was 65.24%.</p><p> </p><p><strong>Abstrak</strong></p><p>Kajian populasi dan penyebaran anakan saninten (Castanopsis argentea (Bl.) A.DC) dilakukan pada Agustus 2003 di blok Pasarean, Resort Cibodas, Taman Nasional Gunung Gede Pangrango. Pengumpulan data dilakukan dengan menggunakan metode kuadrat bujur sangkar 2 x 2 m, sedangkan untuk tingkat pohon hanya jenis saninten. Ukuran petak yang digunakan 20 x 20 m. Petakan untuk semai terletak di salah satu sudut dalam petak untuk pengukuran pohon. Penelitian dilakukan pada ketinggian tempat 1.300, 1.400, 1.500, 1.600, dan 1.700 m, dpl. Petakan dibuat pada setiap ketinggian tempat sebanyak 20 petak. Hasil penelitian menunjukkan bahwa jenis yang mendominasi komunitas tumbuhan tingkat semai adalah kileho (Saurauia pendula Bl.) yang mendominasi pada ketinggian 1.300 dan 1.600 m dpl, huru (Litsea sp.) mendominasi semai pada ketinggian 1.400 dan 1.700 m dpl, dan nangsi (Villebrunea sp.) mendominasi semai pada ketinggian 1.500 m dpl. Penyebaran terluas pohon dan semai saninten pada ketinggian tempat 1.400 m dpl, yaitu 18 pohon dan 833 anakan/ha. Nilai dominansi tertinggi tingkat semai dimiliki oleh ketinggian tempat 1.400 m dpl dengan indeks dominansi 0,06. Nilai indeks keanekaragaman jenis tertinggi dimiliki oleh ketinggian tempat 1.300 m dpl yang mempunyai keanekaragaman jenis sebesar 3,34 dengan 37 jenis individu. Nilai kesamaan komunitas (IS) tertinggi komunitas semai terdapat antara ketinggian tempat 1.600 dan 1.700 m dpl sebesar 65,24%.</p>

scholarly journals Carbon stocks of homestead forests have a mitigation potential to climate change in Bangladesh

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tarit Kumar Baul ◽  
Tajkera Akhter Peuly ◽  
Rajasree Nandi ◽  
Lars Holger Schmidt ◽  
Shyamal Karmakar
Keyword(s):  
Species Diversity ◽  
Stand Structure ◽  
Diversity Index ◽  
Carbon Stocks ◽  
Small Scale ◽  
Species Diversity Index ◽  
C Stocks ◽  
Homestead Forests ◽  
C Stock ◽  
Low Altitude

AbstractA total of 176 homestead forests at three altitudes in the Chittagong Hill Tracts, Bangladesh were randomly surveyed to estimate carbon (C) stocks and how stand structure affects the biomass C. All woody vegetations were measured, and litter and soil (0–30 cm depth) were sampled. The tree biomass C stock in the top two altitude forests was up to 37–48% higher than in low altitude, owing to significantly higher tree density and species diversity. An increase in species diversity index by one unit increased the biomass stock by 23 Mg C ha−1. The C stock of litterfall in low altitude forests was 22–28% higher than in the top two altitude due to the deposition of litters downslope and deliberate use of mulch for soil improvement and conservation, resulting in up to 5% higher total soil C. The topsoil C was 10–25% higher than the deeper soil, depending on the altitude. The forest stored 89 Mg C ha−1, indicating a potential for C sequestration in trees outside forest. This study would help policymakers to strengthen the recognition of small-scale forests for mitigation in REDD + (reducing emissions from deforestation and forest degradation, the role of conservation, sustainable management of forests, and enhancement of forest carbon stocks) and support owners through C credits from sustainably managed forests.

scholarly journals KEANEKARAGAMAN JENIS ANGGREK ALAM (Orchidaceae) BERDASARKAN KETINGGIAN TEMPAT DI GUNUNG POTENG CAGAR ALAM RAYA PASI KOTA SINGKAWANG PROVINSI KALIMANTAN BARAT

2020 ◽  
Vol 8 (3) ◽  
Author(s):  
Novita Putri Sesar ◽  
Iskandar A M ◽  
Togar Fernando Manurung
Keyword(s):  
Species Diversity ◽  
Environmental Factors ◽  
Nature Reserve ◽  
Diversity Index ◽  
Economic Value ◽  
Survey Method ◽  
Species Diversity Index ◽  
Orchid Species ◽  
West Kalimantan ◽  
Medium Range

Natural orchids are one of the flora in Mount Poteng which is included of Raya Pasi Nature Reserve located at Singkawang City, West Kalimantan Province. Orchids have economic value for source of income and be beneficial to ecology that needs to be protected. The altitudes and environmental factors strongly affected the presence of orchid species.The research aims to record the diversity of natural orchids species based on the altitudes place in Mount Poteng. The research was conducted on February 28 until March 28, 2020. This research uses survey method. The research sample was taken using double plots method and to determine sample plots locations is conducted by purposive. The total number of the sample plots is 16 plots and each plot measure 20 by 50 meters. Based on the result of research found 19 species of natural orchids that consist of 348 individuals. The results analysis of the diversity index of orchid species in whole of altitudes at Mount Poteng is 1,338 that is included medium range. The highest species diversity index of 1,300 occurred at altitude of 400-500 m asl and the lowest species diversity index at altitude of 700-725 m asl that is 0,594. Orchid species which found in whole of altitudes is Dendrobium crumenatum. Furthermor, there were found the orchid species on certain heights are Cleisostoma scortechinii, Cordiglottis filiformis, Ludisia discolor, and Phalaenopsis pantherina at altitude of 400-500 m asl and species of Bromheadia finlaysoniana and Pomatocalpa latifolia found at altitude of 700-725 m asl.Keywords: altitudes, mount poteng, orchids, species diversity

scholarly journals Keanekaragaman Pari Hasil Tangkapan Nelayan di TPI Karangantu Banten

2021 ◽  
Vol 9 (3) ◽  
pp. 257-266
Author(s):  
Erreull Isyhadu Putri ◽  
◽  
Dinda Rizqi ◽  
Fenia Alya ◽  
Tia Azizah
Keyword(s):  
Species Diversity ◽  
Literature Review ◽  
Diversity Index ◽  
Conservation Status ◽  
Habitat Characteristics ◽  
Species Diversity Index ◽  
Interview Method

This study aims to determine the diversity of rays caught by fishermen in TPI Karangantu Banten. This research uses interview method and literature review. The discussion of the observations includes classification, habitat, characteristics, and conservation status. The results of this study indicate that there is a diversity of rays, namely the results of the families obtained from the observations are Rhinopteridae, Dasyatidae, and Gymnuridae). From the results of the calculation of the species diversity index using the Shannon Wiener formula, it is included in the medium category. This diversity can be used as knowledge and inventory for biodiversity, especially the chondrichthyes class in TPI Karangantu, Serang, Banten.

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