scholarly journals Ekologi dan Potensi Invasif Acacia decurrens di Sebagian Kawasan Taman Nasional Gunung Merapi Yogyakarta

2019 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
Sutomo Sutomo
Keyword(s):  
Species Diversity ◽  
National Park ◽  
Ground Cover ◽  
Significant Negative Correlation ◽  
Tree Level ◽  
Sampling Location ◽  
Invasive Potential ◽  
Merapi Volcano ◽  
Bivariate Correlation ◽  
Nmds Analysis

Acacia decurrens, originally from Australia, is a woody plant that has become a concern in the erupted areas of Merapi volcano in 2006. The purpose of this study was to quantitatively describe the ecology of Acacia decurrens, and its invasive potential. Vegetation analysis was carried out in four areas of Mount Merapi National Park (TNGM), namely Kalikuning, Kaliadem, Plawangan and Pranajiwa. Ordination using the Non Metric Multidimensional Scaling (NMDS) method and Canonical Correspondence (CCA) and Spearman's bivariate correlation were carried out in data analysis. The results of NMDS analysis (2D stress = 0.14) showed that open areas due to eruption in Kaliadem are now dominated by A. decurrens. The results of the analysis also showed a significant negative correlation (Spearman rho = 0.6) between the abundance of A. decurrens and the level of species diversity in the sampling location. From the results of CCA, A. decurrens in the seedling stage appeared to coexist with other types of ground cover such as Alangium javanicum and Araliaceae. But in the tree phase, this species tended to form pure stands and only occasionally appeared to live side by side with other types of Fabaceae such as Albizia lopantha. Tree-level A. decurrens seemed to prefer sites with lower pH levels while A. decurrens seedling levels were more commonly found in sites with higher pH. Acacia decurrens have the potential to become a weed in TNGM due to its dominant distribution and tendency to decrease the level of species diversity in TNGM.

scholarly journals Acacia decurrens di Sebagian Kawasan Taman Nasional Gunung Merapi Yogyakarta

2019 ◽  
Vol 5 (1) ◽  
pp. 38
Author(s):  
Sutomo Sutomo
Keyword(s):  
Multidimensional Scaling ◽  
National Park ◽  
Diversity Index ◽  
Significant Negative Correlation ◽  
Tree Level ◽  
Sampling Location ◽  
Alien Plant ◽  
Metric Multidimensional Scaling ◽  
Spearman's Rho ◽  
Spearman’S Rho

<p><em>Abstrak</em><strong>- </strong><strong><em>Acacia decurrens</em></strong><strong>, adalah jenis asing yang mulai menjadi perhatian sejak dominasinya di lahan bekas erupsi Gunung Merapi tahun 2006. Tujuan dari kegiatan studi ini adalah untuk mendeskripsikan secara kuantitatif Ekologi <em>Acacia decurrens</em>, hubungannya dengan beberapa faktor lingkungan serta potensi keinvasifannya jika dikorelasikan dengan <em>diversity index</em>. Analisis vegetasi dilakukan di empat wilayah Taman Nasional Gunung Merapi (TNGM) yaitu Kalikining, Kaliadem, Plawangan dan Pranajiwa. Ordinasi menggunakan metode <em>Non metric multidimensional scaling</em> (NMDS) serta <em>Canonical Corespondence</em> (CCA) serta korelasi <em>bivariate</em> Spearman dilakukan dalam analisis data. Hasil analisis NMDS (2D stress = 0,14) memperlihatkan bahwa daerah terbuka akibat erupsi di Kaliadem kini didominasi oleh jenis <em>A. decurrens</em>. Hasil analisis juga menunjukkan adanya korelasi negatif yang signifikan (Spearman’s rho = 0,6) antara kelimpahan jenis <em>A. decurrens</em> dengan tingkat keanekaragaman jenis di dalam lokasi sampling. Dari hasil CCA, <em>A. decurrens</em>, pada tahap semai, nampak hidup berdampingan dengan jenis groundcover lainnya seperti <em>Alangium javanicum</em>, dan Araliaceae. Namun pada fase pohonnya, jenis ini cenderung membentuk tegakan murni. <em>Acacia decurrens</em> tingkat pohon nampaknya lebih memilih sites dengan tingkat pH yang lebih rendah sedangkan <em>A. decurrens</em> tingkat semai lebih banyak ditemui pada site-site ber pH lebih tinggi. <em>A. decurrens</em> berpotensi menjadi gulma di TNGM.</strong></p><p><em>Abstract - </em><strong>Acacia decurrens, is an alien plant species that has begun to be a concern since its dominance in the former eruption of Mount Merapi in 2006. The purpose of this study is to describe quantitatively the Ecology of Acacia decurrens, its relation to several environmental factors and their invasive potential if correlated with diversity index. Vegetation analysis was carried out in four areas of Mount Merapi National Park, namely Kalikining, Kaliadem, Plawangan and Pranajiwa. Ordination using Non metric multidimensional scaling (NMDS) and Canonical Correspondence (CCA) methods and Spearman bivariate correlations were carried out in data analysis. NMDS analysis (2D stress = 0.14) shows that open areas due to eruptions in Kaliadem are now dominated by A. decurrens. The results of the analysis also showed a significant negative correlation (Spearman’s rho = 0.6) between the abundance of A. decurrens species and the level of species diversity in the sampling location. From the results of CCA, A. decurrens, at the seedling stage, appears to coexist with other types of ground cover such as Alangium javanicum, and Araliaceae. But in the tree phase, this type tends to form pure stands and only occasionally appear alive can it coexist with other Fabaceae species such as Albizia lopantha. Acacia decurrens tree level seems to prefer sites with lower pH levels while A. decurrens seedling levels are more common at higher pH sites. A. decurrens have the potential to become weeds in the Mount Merapi National Park.</strong></p><p><strong><em>Keywords</em></strong>-<em>Autekologi, Faktor Lingkungan,</em><em> IAS,</em><em> Risk Assesment</em></p>

scholarly journals Keanekaragaman dan Kemerataan Spesies Anggota Ordo Anura di Lereng Selatan Gunung Merapi Tahun 2012

Biosfera ◽  
2015 ◽  
Vol 32 (1) ◽  
pp. 1
Author(s):  
Donan Satria Yudha ◽  
Yonathan Yonathan ◽  
Rury Eprilurahman ◽  
Septiana Indriawan ◽  
Eka Cahyaningrum
Keyword(s):  
Species Diversity ◽  
National Park ◽  
Diversity Index ◽  
Species Abundance ◽  
Dry Season ◽  
Species Evenness ◽  
Southern Slope ◽  
Merapi Volcano ◽  
Wiener Diversity Index ◽  
Evenness Index

Merapi volcano as one of national park is an ecotourism site which is very potential to visit. Information about species diversity for a national park is very important especially if its area fluctuated susceptibly. Two years after 2010 Merapi eruption, there are no research about species diversity and evenness of Anuran in that place. The research is carried out during June-November 2012 which is dry season. The objective of this research is to study the species diversity and evenness of Anuran in southern slope of Mount Merapi. The research is carried out in 6 locations; those are Kali Kuning, Telogo Muncar, Telogo Nirmolo, Petak Pitu, Bukit Turgo, and Bukit Plawangan. We used Visual Encounter Survey (VES) method combined with transect in Kali Kuning, Telogo Muncar, and Petak Pitu. VES method combined with time search in Telogo Nirmolo and Bukit Turgo. VES method combined with track exploration in Bukit Plawangan. Species diversity is analyzed with Shanon-Wiener diversity index. Species evenness is analyzed with Pielou evenness index. Total individuals each species is counted to know species abundance. Species diversity of anuran in southern slope of Mount Merapi is consisted of 12 species’ which is distributed in 6 locations. The highest diversity and evenness of anuran is at Bukit Turgo (H’=1.31; E=0.94). The lowest diversity and evenness of anuran is at Petak Pitu (H’=0.49; E=0.3). Species diversity of anuran in southern slope of Mount Merapi is low (Bukit Turgo and Kali Kuning) and very low (Bukit Plawangan, Telogo Muncar, Telogo Nirmolo, and Petak Pitu). Species evenness of anuran in southern slope of Mount Merapi is stable (Telogo Nirmolo and Bukit Turgo), still labil (Bukit Plawangan, Kali Kuning, and Telogo Muncar), and oppressed (Petak Pitu).

scholarly journals Grass Species Diversity and Ground Cover of Herbs in the Grassland Plains of Nech Sar National Park, Ethiopia

2017 ◽  
Vol 08 (03) ◽  
pp. 250-257
Author(s):  
Molla Mekonnen Alemu ◽  
Subhes Bhattacharyya ◽  
Andrew Reeves ◽  
Mark Lemon
Keyword(s):  
Species Diversity ◽  
National Park ◽  
Ground Cover ◽  
Grass Species

scholarly journals Contribution to the diversity of soil mites (Acari, Gamasida) in southern Croatia (Dalmatia), with some ecological and zoogeographical notes

2010 ◽  
Vol 47 (1) ◽  
pp. 21-27 ◽  
Author(s):  
Sławomir Kaczmarek ◽  
Tomasz Marquardt
Keyword(s):  
Species Diversity ◽  
National Park ◽  
Dominant Species ◽  
Ground Cover ◽  
Soil Mites ◽  
Gamasid Mites ◽  
Covering Tree ◽  
Decaying Wood ◽  
The Town ◽  
Southern Croatia

Contribution to the diversity of soil mites (Acari, Gamasida) in southern Croatia (Dalmatia), with some ecological and zoogeographical notes The species diversity of soil gamasid mites (Acari) in southern Croatia (Dalmatia) was studied in August 2002. In the Krka National Park, Brač Island, and near the town of Makarska, 320 samples were collected from various microhabitats: soil, grass and moss ground cover, wet moss, needle litter, moss covering tree trunks, and decaying wood). Altogether, 2097 mites of 56 gamasid species were recorded. Dominant species were: Polyaspis patavinus (Brač Island), Zercon fageticola (Makarska), and Cheiroseius serratus (Krka National Park). Analyses of ecological preferences and zoogeographic distribution were made for Polyaspis patavinus, Cheiroseius serratus, Zercon fageticola, Z. berlesei, Z. athiasi, Asca nova and A. aphidioides.

scholarly journals Tree species diversity on ebony habitat with different degradation levels in Sulawesi

2021 ◽  
Vol 918 (1) ◽  
pp. 012052
Author(s):  
K F Fatlan ◽  
P Pamoengkas ◽  
M Majiidu ◽  
I Z Siregar
Keyword(s):  
Species Diversity ◽  
Tree Species ◽  
National Park ◽  
Forest Canopy ◽  
Nature Reserve ◽  
Diversity Index ◽  
Population Decline ◽  
Tree Level ◽  
Canopy Layer ◽  
Natural Habitats

Abstract Ebony (Diospyros celebica Bakh.) is endemic species to Sulawesi that is experiencing population decline. It is known that population size is an important element for the dynamics of natural forests through changes in vegetation structure and composition that need to be monitored. This study aims to analyze the species diversity in natural habitats of genetically diverse ebony, namely: i) Bantimurung National Park (BB), ii) Cani Sirenreng Nature Park (CS), iii) Farhumpenai Nature Reserve (FP), and iv) Pangi Binangga Nature Reserve (PB). Data collection was carried out based on a modified transect line and plot with 20 m x 100 m in size. The results showed that as many as 28 families were identified, consisting of 44 species at the tree level, 37 species at the pole level, 39 species at the sapling level, and 31 species at the seedling level, respectively. The composition of vegetation in Babul National Park consists of 32 species, Cani Sirenreng consists of 18 species, Farhumpenai consists of 19 species, and Pangi Binanngga consists of 19 species. The species composition was dominated by Diospyros celebica Bakh., Dracontomelon dao (Blanco) Merr. & Rolfe, Canangium odoratum, Ficus benjamina L., Pterospermum celebicum Miq., Kleinhovia hospita L. and Vitex cofassus Reinw. Ex Blume. The diversity index (H’-Index) of tree species in BB, CS, FP, and PB were 0.82, 1.13, 1.03, and 1.60, respectively. The Important Value Index (INP-Index) of ebony in BB, CS, FP and PB were 18.01%, 74.1%, 60.13% and 113.5%, respectively. The structure of the forest canopy layer in BB and FP consists of three layers of canopy, while CS and PB consist of two layers of canopy.

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 A re-evaluation of the occurrence of freshwater molluscs in the Kruger National Park

Koedoe ◽  
1998 ◽  
Vol 41 (1) ◽  
Author(s):  
K.N. De Kock ◽  
C.T. Wolmarans
Keyword(s):  
Species Diversity ◽  
National Park ◽  
Kruger National Park ◽  
Intermediate Hosts ◽  
Freshwater Molluscs ◽  
Freshwater Mollusc ◽  
Mollusc Species ◽  
Trematode Parasites

Most of the previous records of the freshwater molluscs from the Kruger National Park date back prior to and up to 1966. On account of several droughts between 1966 and 1995 it was decided to do a survey of the freshwater mollusc population in 1995 to evaluate the effect of these droughts. The traditional mollusc intermediate hosts were also screened for trematode parasites to establish whether or not they were infected. No infected molluscs were found. Eight of the 19 species reported up to 1966 were not found during the 1995 survey. Three new mollusc species were collected in 1995. The consequences of the drought are clearly visible when the species diversity found in the dams in the 1995 survey, is compared to what was previously recorded.

scholarly journals Use of the flooded forest by fish assemblages in lakes of the National Park of Anavilhanas (Amazonas, Brazil)

2012 ◽  
Vol 42 (4) ◽  
pp. 561-566 ◽  
Author(s):  
Janette Noveras ◽  
Kedma C. Yamamoto ◽  
Carlos E.C. Freitas
Keyword(s):  
Species Diversity ◽  
Correspondence Analysis ◽  
National Park ◽  
Fish Assemblages ◽  
Open Water ◽  
Flooded Forest ◽  
Rio Negro ◽  
Flooded Forests ◽  
Filter Feeders ◽  
Distribution Of Fish

We evaluated diversity and distribution of fish species in two habitats: flooded forest and open water of lakes of Rio Negro. Each of four lakes within the Anavilhanas Archipelago was sampled three times from 2009-2010. Species diversity generally was higher in flooded forests and at night, according to correspondence analysis. Predators were most active at night, but showed no preference between the flooded forest and open water habitats. Omnivores, filter feeders, and detritivores were most active during the day.

scholarly journals Altitudinally coordinated pattern of plant community structure in the Shivapuri National Park, Nepal

1970 ◽  
Vol 18 (1) ◽  
pp. 11-17 ◽  
Author(s):  
Shalik Ram Sigdel
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Plant Species ◽  
Plant Community ◽  
National Park ◽  
Climatic Factors ◽  
Flower Colour ◽  
Basal Area ◽  
Plant Community Structure ◽  
Closed Canopy

Study on plant community structure was undertaken in different altitudinal ranges of Shivapuri National Park. The general objective of this study is to analyse different plant community structure in Shivapuri National Park with regards to altitudinal variation. The forest was divided into three distinct altitudinal ranges on the basis of dominancy. In each altitudinal range standard quadrats method was applied for vegetation analysis. The highest number of species was found in site II. All the ecological parameters of the plant species were higher in site II except Basal Area of tree that was highest in site III. The pattern of distribution of plant species was not uniform according to altitude. At higher elevation, the forest was mature with almost closed canopy and trees were large; so the tree density was low. Species richness was highest in site II. Species diversity among tree and shrub species was higher in site I. But for herb species diversity was higher in site II for both seasons. Such type of variations may be due to nature of soil i.e. acidity, nutrient availability and other micro-climatic factors. The most noteworthy thing was that variation in flower colour of Rhododendron arboreum i.e. deep scarlet at low altitude, but it gradually changed into pinkish white as altitude increased. Key words: Altitude, Density, Plant community, Species diversity doi: 10.3126/banko.v18i1.2161 Banko Janakari, Vol. 18, No. 1, 11-17

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