scholarly journals Analisis Keanekaragaman Tumbuhan Invasif Di Kawasan Hutan Pantai Balekambang Desa Srigonco Kecamatan Bantur Kabupaten Malang

2020 ◽  
Vol 6 (1) ◽  
pp. 46-53
Author(s):  
Miftahul Mukarromah ◽  
Ari Hayati ◽  
Hasan Zayadi
Keyword(s):  
Invasive Plants ◽  
Invasive Plant ◽  
Cynodon Dactylon ◽  
Diversity Index ◽  
Abiotic Factors ◽  
Coastal Forest ◽  
Mimosa Pudica ◽  
Belt Transect ◽  
Index Value ◽  
Sida Rhombifolia

Balekambang Beach is the most visited beach destination in Malang Regency until the end of 2015. One of the invasive pathways of invasive plants is Tourism. The purpose of this study was to identify invasive plant species, diversity and compare the value of the diversity index with abiotic factors.This research method is descriptive with systematic sampling techniques using Belt Transect, and measurements of abiotic factors include edafic factors and climatic micro factors. Invasive alien plant species found in the Balekambang coastal forest are identified as seventeen species namely (Hemighraphis glaucescens), (Oplismenus sp), (Amomum coccineum), (Arenga obtusifolia), (Leucaena leucochephana), (Mimosa sp), (Cassia siamea), (Eupatorium odoratum), (Hyptis capitata), (Cynodon dactylon), (Sida rhombifolia), (Synedrella nudiflora), (Chromolaena odorata),  (Leucaena leucochepala), (Mimosa pudica), and (Ruellia tuberosa) with the index value of invasive plant diversity in protected forests and production classified as high compared to mangroves. The results of the diversity index value with abiotic factors showed a positive (+) direction on soil sailinity where the R2 value was 0.5606 or 50%, which means it showed a relationship between soil salinity and an abundance of invasive plants in Balekambang coastal forest area of 50%.  Keywords:invasive plants, Balekambang beach, belt transect, diversity ABSTRAK Pantai Balekambang adalah destinasi wisata alam pantai di Kabupaten Malang yang paling banyak dikunjungi hingga akhir tahun 2015.Salah satu jalur invasi dari tumbuhan invasif adalah Tourism (Wisata). Tujuan dari penelitian ini adalah mengidentifikasi jenis tumbuhan invasif, keanekaragaman dan membandingkan nilai indeks keanekaragaman dengan faktor abiotik. Metode penelitian ini deskriptif dengan tehnik pengambilan sampling secara sistematis menggunakan Belt Transect, dan pengukuran faktor abiotik meliputi faktor edafik dan faktor mikro klimatik. Jenis spesies tumbuhan asing invasif yang terdapat di hutan pantai Balekambang diidentifikasi sebanyak tujuh belas spesies yaitu Hemighraphis glaucescens, Oplismenus sp, Amomum coccineum, Arenga obtusifolia, Leucaena leucochephana, Mimosa sp, Cassia siamea, Eupatorium odoratum, Hyptis capitata, Cynodon dactylon, Sida rhombifolia, Synedrella nudiflora.Chromolaena odorata, Leucaena leucochepala, Mimosa pudica, dan Ruellia tuberose dengan nilai indeks keanekaragaman tumbuhan invasif pada hutan lindung dan produksi tergolong tinggi dibanding mangrove. Hasil analisis uji korelasi nilai indeks keanekaragaman dengan faktor abiotik menunjukkan arah positif (+) pada salinitas tanah dimana nilai R2 sebesar 0.5606 atau 50%, yang artinya menunjukkan hubungan antara salinitas tanah dengan kelimpahan tumbuhan invasif di kawasan hutan pantai Balekambang sebesar 50%. Kata kunci: tumbuhan invasif, pantai Balekambang, belt transect, keanekaragaman

Restoration Ecology and Invasive Plants in the Semiarid West

2008 ◽  
Vol 1 (4) ◽  
pp. 399-413 ◽  
Author(s):  
Cynthia S. Brown ◽  
Val J. Anderson ◽  
Victor P. Claassen ◽  
Mark E. Stannard ◽  
Linda M. Wilson ◽  
...  
Keyword(s):  
Invasive Species ◽  
Invasive Plants ◽  
Restoration Ecology ◽  
Invasive Plant ◽  
Abiotic Factors ◽  
Plant Management ◽  
Ecosystem Development ◽  
Plant Materials ◽  
Invasive Plant Management ◽  
Complex Interactions

AbstractInvasive plants are a common problem in the management and restoration of degraded lands in the semiarid western United States, but are often not the primary focus of restoration ecologists. Likewise, restoring native vegetation has not been a major concern of weed scientists. But trends in the literature demonstrate increasing overlap of these fields, and greater collaboration between them can lead to improved efficacy of restoration efforts. Succession and ecosystem development are the products of complex interactions of abiotic and biotic factors. Our greatest restoration and invasive plant management successes should result when we take advantage of these natural processes. Recent shifts in management objectives have generated approaches to directing plant community development that utilize species that are strong competitors with invasive species as a bridge to the establishment of native perennial vegetation. Soil water and nutrient characteristics and their interactions can affect desired and undesired plant species differentially and may be manipulated to favor establishment and persistence of desired perennial plant communities. Selection of appropriate plant materials is also essential. Species assemblages that suppress or exclude invaders and competitive plant materials that are well adapted to restoration site conditions are important keys to success. We provide guidelines for restoration based on the fundamental ecological principles underlying succession. Knowledge of the complex interactions among the biotic and abiotic factors that affect successional processes and ecosystem development, and increased collaboration between weed scientists and restoration ecologists hold promise for improving restoration success and invasive species management.

scholarly journals SPECIES DIVERSITY AND DISTRIBUTION OF SPONGES IN THE COASTAL AREA OF KASIAK ISLAND PARIAMAN REGENCY SUMATERA BARAT PROVINCE

2020 ◽  
Vol 2 (2) ◽  
pp. 162-169
Author(s):  
Nahdya Nasri Ananda ◽  
Efriyeldi Efriyeldi ◽  
Thamrin Thamrin
Keyword(s):  
Distribution Pattern ◽  
Diversity Index ◽  
Survey Method ◽  
Research Station ◽  
Frequency Of Occurrence ◽  
Dominance Index ◽  
Bottom Waters ◽  
Density Values ◽  
Belt Transect ◽  
Index Value

Sponges are the most primitive multicellular animals that live in various types of waters from freshwater, brackish and sea. Sponges live in bottom waters that typically stick themselves on hard substrate such as rock or coral and compete with other tacks organism to obtain a food hall. The research was conducted in Kasiak Island Pariaman regency West Sumatera in February-March 2019, aims to find outthe type, density, frequency of occurrence, diversity index, dominance index, the distribution pattern of sponge, To support the research data is also observed the characteristics of the environment such as water quality. The method used is survey method, where sampling using belt transect method performed on three stations. The research found 14 genus / species of sponge consisting of 11 families in island waters Kasiak with sponge density values obtained in each research station ranges from 1458-4208 ind / ha. The highest frequency of occurrence of the type Jaspis sp. with the frequency of occurrence of 100%. Diversity index values ranged from 1.8921 to 1.9488, dominance index value obtained was from 0.3163 to 0.3396, and the value of the distribution pattern of the sponge ranges from 0.2941 to 0.3015.

scholarly journals KEANEKARAGAMAN JENIS KUPU-KUPU PADA LIMA TIPE HUTAN DI AREAL PT. HUTAN KETAPANG INDUSTRI KALIMANTAN BARAT

2019 ◽  
Vol 7 (3) ◽  
Author(s):  
Jogi Yoepi Sinaga ◽  
Slamet Rifanjani ◽  
Ahmad Yani
Keyword(s):  
Diversity Index ◽  
Abiotic Factors ◽  
Wealth Index ◽  
Butterfly Species ◽  
Forest Types ◽  
Habitat Types ◽  
Species Diversity Index ◽  
A Value ◽  
Observation Method ◽  
Index Value

Butterflies are species of insect found in all types of habitats. Butterflies can be used as bio-indicators of environmental change because butterflies are very sensitive to biotic and abiotic factors. The aim of this study to obtain data the diversity of butterfly species in several habitat types in the PT.Hutan Ketapang Industri. This study used observation method with a sweeping that is using insect nets and researchers are free to explore the area randomly for a specified time. This research was conducted in 5 Habitats, kerangas forest, peat swamp, lowland dipterocarps, riparian and wetlands. Five forest types are selected based on the density and diversity of forest vegetation. The results found 14 species with a total of 316 individuals. Based on the calculation of species diversity index of butterflies in five locations of 2.54212, shows that the diversity is classified as moderate and has an abundance index value of 0.963289 indicates that the abundance is classified as high. Then obtained a value of species wealth index of 2.75651 is classified as moderate and has a value of dominance index of 0.0868651 indicates that there is no dominant typeKeywords:  butterfly, diversity, indicator habitat, bioindicator

scholarly journals Growth-promoting characteristics of potential nitrogen-fixing bacteria in the root of an invasive plant Ageratina adenophora

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7099 ◽  
Author(s):  
Kai Fang ◽  
Zhu-Shou-Neng Bao ◽  
Lin Chen ◽  
Jie Zhou ◽  
Zhi-Ping Yang ◽  
...  
Keyword(s):  
Invasive Plants ◽  
Invasive Plant ◽  
Diversity Index ◽  
Shoot Biomass ◽  
Nitrogen Fixing ◽  
Promoting Effect ◽  
Nitrogen Fixing Bacteria ◽  
Ageratina Adenophora ◽  
Growth Promoting ◽  
Exotic Legumes

Root endophytic nitrogen-fixing bacteria (reNFB) have been proposed as important contributors to the invasiveness of exotic legumes; however, the reNFB of invasive nonlegumes has received less attention. In particular, the growth-promoting effect of reNFB on invasive plants remains unknown. In this study, 131 strains of potential nitrogen-fixing bacteria were isolated and purified from the roots of the invasive plant, Ageratina adenophora, in Southwest China. Phylogenetically, these reNFB were categorized into three phyla at 97% sequence identity that included Proteobacteria (92.4%), Actinobacteria (4.6%), and Firmicutes (3.1%). The dominant isolates ranked by number were Pseudomonas (80 isolates, 61.1%), Rhizobium (12 isolates, 9.2%), and Duganella (11 isolates, 8.4%). The community composition and diversity of A. adenophora reNFB were markedly different across study regions. The capacity of these reNFB to accumulate indolyl-3-acetic acid (IAA), solubilize phosphate, and produce siderophores was determined. All 131 isolates of reNFB accumulated IAA, 67 isolates solubilized phosphate, and 108 isolates produced siderophores. Among the three dominant genera of reNFB, Pseudomonas had the highest phosphorus solubilization and siderophore production, while the accumulation of IAA in the genus Duganella was the lowest. Interestingly, the calculated reNFB Shannon diversity index of each A. adenophora individual was negatively correlated with the capacity of reNFB to produce growth-promoting products. Six randomly selected isolates from three dominant genera were further used to conduct inoculation experiments, and all isolates showed significant positive growth-promoting effects on A. adenophora seedlings. The contribution of reNFB to the root biomass was higher than that to the shoot biomass. Our results suggest that reNFB, similar to soil or nodular nitrogen-fixing bacteria, can potentially promote plant growth and may play an important role in the invasion of nonleguminous plants. More detailed studies on the correlation between reNFB and invasive plants are necessary.

scholarly journals DIVERSITY OF SOIL ARTHROPOD IN GREEN BARRIER AREA PT. PUSRI

2016 ◽  
Vol 2 (1) ◽  
Author(s):  
Arif Hidayat ◽  
Hilda Zulkifli ◽  
Chandra Irsan
Keyword(s):  
Diversity Index ◽  
Vegetation Type ◽  
Abiotic Factors ◽  
Tectona Grandis ◽  
Soil Arthropods ◽  
Paraserianthes Falcataria ◽  
Soil Arthropod ◽  
Hura Crepitans ◽  
Index Value ◽  
Green Barrier

The research was conducted to inventory and identify as well as acknowledge the correlation between vegetation type with soil arthropods in the Green Barrier area of PT Pusri. PT. Pusri green Barrier area is 28 hectares and dominated by 10 types of vegetation, such as, the Angsana (Pterocarpus indicus Wild), Bambu (Bambusa Sp), Beringin (Ficus benyamina), Buah Roda (Hura crepitans L), Jati (Tectona grandis L), Kelampayan (Neolamarckia cadamba) , Ketapang (Terminalia catappa L), Mahony (Swietenia macrophylla King), Pulai (Alstonia scholaris), and Sengon (Paraserianthes falcataria L). Soil arthropods were collected by using pit fall traps and funnel barlese-tullgren in every type of vegetation, between July-August 2015. Identification of arthropod genera Identification has been done in Entomology Laboratory of the Agriculture Plant Disease Faculty Sriwijaya University, and analysis of soil organic in the Laboratory of Soil Faculty of Agriculture Sriwijaya University. The results were obtained into 3 classes of soil arthropods belonging to the 10 orders, 28 families and 35 genera. The diversity index value of soil arthropods in various types of vegetation is classified moderately (H= 1-3), and no type of soil arthropods were dominant, mean that soil arthropods with different types spread over in the various types of vegetation in the area of Green Barrier PT. Pusri. Light intensity abiotic factors play an important role in the life of the soil arthropod communities in vegetation Sengon (Paraserianthes falcataria L) with a correlation coefficient 1.00Keywords: soil arthropods, community structure, a biotic factors, Green Barrier PT. Pusri

scholarly journals Vegetation Analysis of Invasive Plants in Batang Gadis National Park Resort 7 Sopotinjak

2021 ◽  
Vol 5 (1) ◽  
pp. 1-9
Author(s):  
Putri Diana ◽  
Husnarika Febriani ◽  
Melfa Aisyah Hutasuhut
Keyword(s):  
Invasive Plants ◽  
Plant Diversity ◽  
National Park ◽  
Invasive Plant ◽  
Diversity Index ◽  
Vegetation Analysis ◽  
Ageratum Conyzoides ◽  
Purposive Sampling ◽  
Melastoma Malabathricum ◽  
Important Value Index

Introduction: The purpose of this study was to determine the type and diversity of invasive plants in Batang Gadis National Park (BGNP). Materials and Methods: This study was conducted in Batang Gadis National Park Resort 7 Sopotinjak, Mandailing Natal from February until April 2021. This study using the quadratic method by making transects and each transect is divided into 8 plots. Laying plots by purposive sampling as many as 8 plots. Results: BGNP Resort 7 had the invasive plants consisted of 12 families, 20 species and 1287 individuals. The highest species was found in Melastoma malabathricum L (230) and the highest important value index was found in Strobilanthes reptans (35.82%), while the species with the lowest significance index was Ageratum conyzoides (3.40%). The invasive plant diversity index was categorized as moderate (H'= 2.43).

scholarly journals Levantamento fitossociológico em pastagens degradadas sob condições de várzea

2004 ◽  
Vol 22 (3) ◽  
pp. 343-349 ◽  
Author(s):  
L.D. Tuffi Santos ◽  
I.C. Santos ◽  
C.H. Oliveira ◽  
M.V. Santos ◽  
F.A. Ferreira ◽  
...  
Keyword(s):  
Cynodon Dactylon ◽  
Minas Gerais ◽  
Cyperus Esculentus ◽  
Mimosa Pudica ◽  
Sida Rhombifolia ◽  
Brachiaria Mutica

O levantamento foi realizado em duas áreas de várzea, eventualmente inundáveis, localizadas na Fazenda Experimental de Leopoldina, da Empresa de Pesquisa Agropecuária de Minas Gerais. A área 1, de 3 ha, estava ocupada por uma pastagem de capim-angola (Brachiaria mutica), mal manejada e sem controle de plantas daninhas há mais de dez anos. A área 2, de 5 ha, estava ocupada por uma pastagem de capim-setária (Setaria anceps cv. Kazungula), implantada na estação chuvosa do ano anterior, cuja formação ficou prejudicada pelo baixo estabelecimento da forrageira. Para o estudo fitossociológico, utilizou-se o método do quadrado inventário, aplicado por meio de um quadrado de 1,0 m², lançado ao acaso 19 vezes na área 1 e 41 vezes na área 2. As espécies encontradas foram identificadas e cadastradas. Na pastagem de capim-angola foram identificadas 27 espécies, distribuídas em 11 famílias e na pastagem de capim-setária 34 espécies distribuídas em 13 famílias. As famílias mais representativas em número de espécies foram: Poaceae (11), Asteraceae (6), Papilionoideae (5), Malvaceae e Euphorbiaceae (4). As maiores freqüências foram das seguintes espécies: Cynodon dactylon, Sida rhombifolia, Cyperus esculentus, Mimosa pudica, Senna occidentalis, Setaria anceps cv. Kazungula e Paspalum urvillei. Em geral, as duas áreas apresentaram-se infestadas com plantas daninhas, inclusive com plantas tóxicas, espinescentes e de baixa palatabilidade, reduzindo a capacidade de suporte animal dos pastos e impedindo o aproveitamento adequado das áreas pelos bovinos.

Predator Interference with the Cinnabar Moth (Tyria jacobaeae) for the Biological Control of Tansy Ragwort (Senecio jacobaea)

2011 ◽  
Vol 4 (3) ◽  
pp. 332-340 ◽  
Author(s):  
Kimberly K. Crider
Keyword(s):  
Biological Control ◽  
Invasive Plant ◽  
Abiotic Factors ◽  
Biological Control Agents ◽  
Moth Population ◽  
Tyria Jacobaeae ◽  
Carpenter Ants ◽  
Ant Predation ◽  
Cinnabar Moth ◽  
Tansy Ragwort

AbstractQuantification of interference with biological control agents can provide support for anecdotal claims of success or failure of agent establishment and efficacy. This study was initiated because of observed predation of cinnabar moth larvae by carpenter ants when releasing larvae for the control of tansy ragwort, an invasive plant in Montana. Biotic and abiotic factors were compared among three sites with historically variable moth population establishment. Two experiments were developed to (1) observe and document insect activity, predation, or disappearance on tansy ragwort stems either protected or accessible to ants; and (2) quantify the effects of ant exclusion on herbivory of tansy ragwort. Site comparisons indicated that ant colony density was highest at the driest of three sites, and, interestingly, no ant colonies were detected at the site with higher observed numbers of moth larvae and adults and lower densities of tansy ragwort. Available substrate (logs and stumps) for ant colonization did not differ between the three sites. In the ant exclusion experiments, a larger number of larvae were missing on plants accessible to ants (63%) compared with plants where ants were excluded (39%) after 36 h. Direct observation of predation of larvae by carpenter ants accounted for 9% of missing larvae on stems accessible to ants. Larvae were able to consume 81% of original flowers or buds on ant-excluded stems, compared with 18% consumption on ant-accessible stems, suggesting that ant predation could limit the efficacy of cinnabar moth larvae. These results provide one of many possible explanations for the anecdotal observations of large, persistent populations of cinnabar moths in moist areas. This work emphasizes the importance of post-release observation and monitoring to detect and, ideally, quantify factors to support anecdotal perceptions regarding the fate and subsequent efficacy of insect biological-control agents.

Kelimpahan dan Keanekaragaman Plankton Sebagai Bioindikator Kualitas Air di Perairan Pantai Sayung Kabupaten Demak Jawa Tengah

2021 ◽  
Vol 23 (1) ◽  
pp. 25-32
Author(s):  
Isnaini Nurul Maya Evita ◽  
Riche Hariyati ◽  
Jafron Wasiq Hidayat
Keyword(s):  
Water Quality ◽  
Diversity Index ◽  
Industrial Area ◽  
Parameter Analysis ◽  
Nitrate Content ◽  
Chemical Parameter ◽  
Pollution Levels ◽  
Physical Chemical ◽  
Sea Ranching ◽  
Index Value

Sayung coast is a area with a growing residential, sea ranching, and industrial area. Those aspects produce create waste that could harm the environment, directly or indirectly. Plankton is a biologic component that is used to indicate the changes of water quality in waters that has been polluted. These goals of this research are to know the water quality in Sayung coast area from the abundance of the plankton,  physical-chemical parameter of the water, and also the status of water saprobity. The samples are taken in July 2017 and April 2018, in Sayung coast waters, Demak. Plankton sampling and water from 5 sampling stasions are considered to represent the diversity of the plankton and water stability. Plankton is sampled using plankton net No.25, then preserved using 70% alcohol + 4% formaldehyde. The abiotic data measureted is nitrate content, temperature, pH, salinity, DO, and turbidity. Data analysis are done using Shannon Weiner’s diversity index (H’), diversty index (e), domination index (C), saprobic index. The result shows that there are 49 species of planktons are found, which are 38 fitoplankton, and 11 zooplankton. The highest group is Bacillariophyta which is 14,24%. The diversty index value of H’ 1,58 – 2,45; therefore the Sayung coast waters is catagorized as stable. The index value of e ranges from 0,64 – 1; index C values ranges from 0,08 – 0,22; and the saprobirity index value is in β-Meso/Polisaprobik to α-Mesosaprobik phase with a very light to very high pollution levels. The physical-chemical parameter analysis of Sayung coast waters in overall is still suitable to support plankton’s life.

scholarly journals Effect of exotic tree plantation on floristic composition and phytodiversity of Rema-Kalenga wildlife sanctuary, Bangladesh

2016 ◽  
Vol 3 (2) ◽  
pp. 33-47
Author(s):  
Gazi Mosharof Hossain ◽  
ABM Enayet Hossain
Keyword(s):  
Plant Species ◽  
Negative Impact ◽  
Diversity Index ◽  
Vascular Plant ◽  
Floristic Composition ◽  
Natural Forest ◽  
Wildlife Sanctuary ◽  
Tree Plantation ◽  
Exotic Tree ◽  
Index Value

Effect of exotic tree plantation on floristic composition and phytodiversity status of Rema-Kalenga wildlife sanctuary of Bangladesh was studied. A total of 309 vascular plant species under 245 genera belonging to 83 families were found to constitute the vascular flora of the studied area. The maximum number of species (298) with the highest Shannon-Weiner diversity index value (3.882±0.090) was recorded from natural forest, which was followed by 194 and 165 plant species with 3.441±0.205 and 3.398±0.103 diversity index values recorded from Tectona and Acacia plantation sites respectively. The minimum number of plant species (142) with the lowest diversity index value (2.999±0.152) was recorded from Eucalyptus plantation site. The collected data on the selected forest sites of Rema-Kalenga wildlife sanctuary showed the trends of gradual decrease in floristic composition and phytodivesity status of three plantation sites (Tectona to Acacia to Eucalyptus) in respect to natural forest, which indicated that exotic tree plantations might have negative impact on floristic composition and phytodiversity of this semi-tropical forest area and the fast-growing exotic tree plantation of Acacia and Eucalyptus should be avoided for sustainable development of Rema-Kalenga wildlife sanctuary.Jahangirnagar University J. Biol. Sci. 3(2): 33-47, 2014 (December)

Sign in / Sign up

Export Citation Format

Share Document