scholarly journals Variations in Vegetation and Nutrient Composition in Sal and Eucalyptus Stands: A Case Study of Bhagabatichak Forest Area, West Bengal, India

2021 ◽  
Vol 16 (3) ◽  
pp. 989-1000
Author(s):  
Tridib Kumar Sahoo

The study was conducted on two type of stands one was coppice sal (Shorea robusta Gaertn. F.) stand (CSS) managed by Forest Protection Committee (FPC) along with the State Forest Department and other was coppice eucalyptus (Eucalyptus tereticornis Sm.) stand (CES) solely managed by the State Forest Department. These two stands are in the Bhagabatichak forest area under Midnapore East Forest Division, West Bengal, India. In this study Importance Value Index (IVI), biomass, species diversity index (H/), concentration of dominance(Cd), species richness index(d), beta diversity(βd), index of similarity (IS), nutrient composition and soil pH of the two stands were measured. The study reveals that the highest numbers of species were available during monsoon period in both the stands; these were 71 and 43 respectively in CSS and CES. The result also shows that the highest IVI was occupied by sal in CSS and eucalyptus in CES in all the seasons. Other major species were Clerodendrum viscosum Vent, Lantana camara L., Combretum roxburghii Spreng. Highest diversity index (H/) was in CSS during monsoon (1.983) and minimum in CES during pre-monsoon (1.274). So, the species richness index (d) was higher in CSS during monsoon (28.259) and lower in CES during pre-monsoon (12.112).Cd shows the opposite trend, it was higher in CES during pre-monsoon (0.125) and lower in CSS during monsoon (0.042). β diversity reflects the rate of species change, which was highest in CSS during post-monsoon (1.300). The similarity index (IS) between the two stands was 64.91%. The total annual above ground biomass (agb) were 87008.043 kg ha-1 yr-1 in CSS and 86309.837 kg ha-1 yr-1 in CES. Among them major contributors were sal (82357.946 kg ha-1 yr-1) in CSS and eucalyptus (84246.358 kg ha-1 yr-1) in CES. In both the stands higher amount of nutrients were available in Combretum roxburghii. In CSS available NPK were 1.272%, 0.527% and 1.867% respectively in Combretum roxburghii. In CES the values were 0.864%, 0.513% and 1.724% respectively for the same species. Soil pH of CSS were 5.53 in top soil and 5.79 in subsoil, in CES soil pH were 4.88 and 5.02 in top soil and subsoil respectively. It was observed that sal stand was better than eucalyptus stand with respect to ecology and biodiversity.

2017 ◽  
Vol 14 (2) ◽  
pp. 1 ◽  
Author(s):  
Noor Nasuha Abd Aziz ◽  
Siti Khairiyah Mohd Hatta ◽  
Idris Abd Ghani ◽  
Saiyid Jalaluddin Saiyid Shaifuddin

A study on abundance and diversity of Hymenoptera was conducted in Gunung Datuk, Rembau. Samplings were conducted from November 2014 to February 2015 using six Malaise traps. Three traps were placed at Site 1 at 700m height for high elevation and the remaining traps were placed at Site 2 at 200m height for low elevation. A total number of 221 Hymenopteran were collected which consist of nine families namely Ichneumonidae, Formicidae, Braconidae, Bethylidae, Evaniidae, Tiphiidae, Vespidae, Pompilidae and Apidae. In this study, 93 individuals were obtained from Site 1, comprising nine families and 43 morphospecies while 127 individuals were obtained from Site 2 with nine families and 45 morphospecies. Formicidae was the most dominant family collected from both sites with a total of 104 individuals while the least family recorded was Apidae with only one individual. Shannon’s Weiner Diversity Index (H’) showed Site 1 had the higher diversity value with H’ = 3.17 compared to Site 2 with value H’ = 3.12. For Evenness Index, Site 1 had higher value compared to Site 2 with E’ = 0.84 and E’ = 0.82 respectively. Moreover, for Margalef Richness Index, Site 1 recorded R’ = 9.24 while site two recorded R’ = 9.08 which concluded that Site 1 had higher species richness compared to Site 2. Paired t-test showed that both sites had no significant difference with p>0.05. Overall study showed that the diversity and abundance of Hymenoptera in Gunung Datuk were low since the value of H’ is less than 3.50.


2015 ◽  
Vol 7 (15) ◽  
pp. 8272 ◽  
Author(s):  
Girish Gogoi ◽  
Vipin Parkash

<p>Hollongapar Gibbon Wildlife Sanctuary is comprised of five distinct compartments.  A total of 138 species of gilled mushrooms belonging to 48 genera, 23 families, five orders of the class Agaricomycetes, division Basidiomycota, have been collected and analyzed. The order Agaricales was was found with the highest number of species (113), followed by Russulales (14), Polyporales (5), Cantharellales (4) and Boletales (2). The species <em>Coprinellus disseminatus </em>and <em>Megacollybia rodmani</em> have shown the highest (8.26) and the lowest density (0.05), respectively.  A total of 24 species, e.g., <em>Termitomyces albuminosus, Marasmius curreyi, Marasmiellus candidus, Leucocoprinus medioflavus, Mycena leaiana, Hygrocybe miniata, Collybia chrysoropha, Gymnopus confluens</em> were common with frequency percentage of 11.9, whereas <em>Megacollybia rodmani</em> with less frequency percentage (2.4) was found only in few quadrates of the sanctuary.  The highly abundant species were <em>Termitomyces medius</em> (91.7) and <em>Coprinellus disseminatus </em>(86.8), and less abundant species were <em>Psilocybe wayanadensis</em> (1.0) and <em>Lepiota</em> sp. (1.0) in the study site.  The order of the species richness index (<em>R</em>) compartment wise was 2&gt;3&gt;4&gt;5&gt;1. Both the Shannon diversity index and Simpson diversity index of agarics was maximum (1.88, 0.98) in compartment 2, whereas minimum (1.72, 0.95) in compartment 1 and 5, respectively.  Moreover, the compartment 2 was found very much similar with compartment 3 and very less similar with compartment 1.</p><div> </div>


2016 ◽  
Vol 8 (1) ◽  
pp. 357-366 ◽  
Author(s):  
Eddy Yusron

A study on Echinoderms community structure in marine national parks of Wakatobi, Southeast Sulawesi was conducted in six locations, i.e., Waha Beach, Coastal Sombo, Beach Houses, Beach Kapota, Banakawa beach, and Umala beach in October 2013. All of the six parks were located the Wakatobi territorial waters with coordinates of 5°06'25" S and 123°124'10 E. The results showed of 18 species of echinoderms representing six different types of Asteroidea, two types of Ophiuroidea, six types of Echinoidea, and four types of Holothuroidea. Group of starfish or Asteroidea was the most prominent on seagrass area. Based on the six transects sites, it turned out that the group of starfish (Asteridea) occupied a relatively high level of species richness. From the quantitative analysis values, we obtained diversity index (H) of 1.105 in Sombu, the highest evenness index (J) of 0.989 was found in Umala, and the highest species richness index values (D) of 0.132 was obtained in kapota. It seemed that all echinoderm groups were generally like seagrass microhabitat (12 types). While, sand and dead coral habitats were only occupied by 8 (eight) echinoderm groups. Keywords: echinoderms, diversity, Wakatobi, Southeast Sulawesi


2021 ◽  
Vol 272 ◽  
pp. 01002
Author(s):  
Huan Dai ◽  
Wei Li ◽  
Yan Zeng ◽  
Xinyang Zhang

Studying on Qinglongshan Forest Park in Wuhan by typical plot method, 15 typical plots in the park were investigated, and the species richness index, diversity index, evenness index, frequency and important value index were calculated. The results showed that there were 139 species of woody plants belonging to 46 families and 97 genera, including 41 species of evergreen trees, 32 species of deciduous trees, 62 species of evergreen shrubs, 25 species of deciduous shrubs, and 4 species of bamboo belonging to 1 family, 3 genera. Species richness index and Simpson diversity index were all expressed as tree layer > shrub layer, evergreen species > deciduous species. Pielou evenness was tree layer > shrub layer. This study can provide some reference for understanding the existing plant status of forest parks, carrying out science popularization, scientific research, protection and improvement of forest landscape quality.


2017 ◽  
Vol 14 (2) ◽  
pp. 1
Author(s):  
Noor Nasuha Abd Aziz ◽  
Siti Khairiyah Mohd Hatta ◽  
Idris Abd Ghani ◽  
Saiyid Jalaluddin Saiyid Shaifuddin

A study on abundance and diversity of Hymenoptera was conducted in Gunung Datuk, Rembau. Samplings were conducted from November 2014 to February 2015 using six Malaise traps. Three traps were placed at Site 1 at 700m height for high elevation and the remaining traps were placed at Site 2 at 200m height for low elevation. A total number of 221 Hymenopteran were collected which consist of nine families namely Ichneumonidae, Formicidae, Braconidae, Bethylidae, Evaniidae, Tiphiidae, Vespidae, Pompilidae and Apidae. In this study, 93 individuals were obtained from Site 1, comprising nine families and 43 morphospecies while 127 individuals were obtained from Site 2 with nine families and 45 morphospecies. Formicidae was the most dominant family collected from both sites with a total of 104 individuals while the least family recorded was Apidae with only one individual. Shannon’s Weiner Diversity Index (H’) showed Site 1 had the higher diversity value with H’ = 3.17 compared to Site 2 with value H’ = 3.12. For Evenness Index, Site 1 had higher value compared to Site 2 with E’ = 0.84 and E’ = 0.82 respectively. Moreover, for Margalef Richness Index, Site 1 recorded R’ = 9.24 while site two recorded R’ = 9.08 which concluded that Site 1 had higher species richness compared to Site 2. Paired t-test showed that both sites had no significant difference with p>0.05. Overall study showed that the diversity and abundance of Hymenoptera in Gunung Datuk were low since the value of H’ is less than 3.50.


2012 ◽  
Vol 72 (4) ◽  
pp. 813-819 ◽  
Author(s):  
AL. Marsaro Júnior ◽  
DB. Nascimento ◽  
B. Ronchi-Teles ◽  
R. Adaime

The purpose of this work was to describe the population patterns of Anastrepha in three municipalities of the state of Roraima, Brazil, via faunistic analysis. Weekly collections were performed from January through December 2008, using McPhail traps containing 5% hydrolysed protein, in domestic orchards in the municipalities of Boa Vista, Bonfim and Pacaraima. We captured 301 females of Anastrepha in Boa Vista, 212 in Bonfim, and 167 in Pacaraima. Boa Vista presented the highest species richness (S = 10) and Pacaraima the lowest (S = 4). Anastrepha striata was the predominant species in Boa Vista (47.18%) and Pacaraima (65.87%), whereas A. obliqua predominated in Bonfim (46.23%). Boa Vista presented the highest Shannon-Wiener diversity index (H' = 1.19) and Margalef index (α = 1.58), and Bonfim presented the highest Pielou's evenness index (J' = 0.69). In Pacaraima the cumulative curves reached stability, confirming that the observed and expected species richness were the same. In the other two municipalities, the curves showed a moderate growth, suggesting that the sampling effort was not sufficient to produce an accurate depiction of species richness. In this study, Anastrepha zernyi is reported for the first time in Roraima.


2020 ◽  
Vol 8 (3) ◽  
pp. 274
Author(s):  
Siti Maimunah ◽  
Hasan Mudzakir ◽  
Mohammad Sopan ◽  
Jay H. Samek

The arboretum area is inside the concession area in Barunang Village, Kapuas Regency, Central Kalimantan, which is in the heath forest area towards the lowland forest. Arboretum area 28 ha with a elevation on 114 mdpl.The research methodology uses a modified version of the Biodiversity Assessment Tool originally developed by the High Conservation Values Resource Network (HCVRN) and the World Wildlife Fund (WWF). The method developed by USAID LESTARI and the University Consortium together with Michigan State University USA.The results showed that there were 29 arboretum tree compilers which were dominated by Myrtaceae family of 36 tree species, 32 species of Dipterocarpaceae and 20 species of Myristicaceae which were distributed in groups according to the topography and associated species associations. Species Richness 93; Menhinick's Richness Index 5.57; Margalef Richness Index 16.34; Shannon Sspecies Diversity index 4.07, Simpson Diversity Index 0.98; type evenness index 0.90; Most Abundance Species is Jambu-jambu B (Syzygium spp. B) 3.30 and Importance Values Index with dominan species is Tagaron  ( Crataeva adansonii) 7.51. This arboretum area is a secondary forest area that has been cleared in several parts which can be maximized in its management with various methods for saving nature, recreation, education and research and other zones including animal breeding.


2019 ◽  
Vol 7 (1) ◽  
pp. 82
Author(s):  
Nur M. Heriyanto ◽  
Ismayadi Samsoedin ◽  
M. Bismark

Research on the biodiversity of flora and fauna in conservation forests in the petroleum/oil refinery industri is rarely done, this activity aims to obtain information on the biodiversity of flora and fauna, especially bird species. This research was conducted in in the Bukit Datuk Dumai forest area, Riau Province. Ploting a plot of 100 m x 100 m (1 ha) is made for flora biodiversity, for bird plots with a radius of 25 m scattered randomly at that location. The structure and composition of tree species with a diameter at breast height ≥ 10 cm, saplings and seedlings were examined from a permanent measuring plot of one ha. There were 32 species of trees with a diameter of ≥ 10 cm and numbering 354 trees, belonging to 22 family, the largest species being Dipterocarpaceae. Species that dominate tree level stands are Garcinia dioca L. IVI = 39.67%, Gironniera subaequalis Planch. IVI = 30.39% and Ochanostachys amentaceae Mast. IVI = 30.26 %. The species in sapling level are Hopea mengarawan Miq., Gironniera subaequalis Planch. and Shorea acuminata Dyer. With IVI respectively 73.71%, 42.51% and 35.24%, seedlings of species Glochidion sp. With IVI 47.10%, Koompassia excelsa Taub. IVI 43.52% and Hopea mengarawan Miq. IVI24.62%. The number of bird species was found 33 with a diversity index of 2.63, an evenness index of 0.75 and a species richness index of 6.52.Keywords: structure, composition, regeneration, swamp forests, fauna, birds.


2019 ◽  
Vol 17 (2) ◽  
pp. 283
Author(s):  
Alvian Febry Anggana ◽  
Sigit Andy Cahyono ◽  
Casimerus Yudi Lastiantoro

After the looting and destruction of forest land in the Merubetiri National Park area were effortS to restore the area to its original condition. Various efforts were made involving the community in the rehabilitation of Meru Betiri National Park land. One indicator of the success of land rehabilitation is increasing biodiversity. The purpose of this study was to determine biodiversity in the rehabilitation area of Meru Betiri National Park. The method used uses a 100-200 m striped line combination at each location for vegetation data collection. Vegetation analysis by calculating type frequency, species density, species dominance, important value index, species diversity index, species richness index and distribution pattern. The results showed that there were 14 types of vegetation in 11 families in 4 common observation plots and jackfruit plants (Artocarpus heterophyllus) and showed adaptability and these plants were needed by the community. Based on the results of the study, the INP value of the Wonoasri plot was 103.27% Pete (Parkia speciosa), Bonangan plot was Jackfruit (Artocarpus heterophyllus) of 154.18%, Donglo plot of Jackfruit (Artocarpus heterophyllus) was 133.22%, and Jackfruit Pletes (Artocarpus heterophyllus) of 262.41%. For this reason, it is necessary to do new types of enhancements and compaction of spacing on each rehabilitation plot so that the value of diversity and species richness can increase, so that the success of rehabilitation can be seen.


2012 ◽  
Vol 102 (3) ◽  
pp. 292-297 ◽  
Author(s):  
Matheus H. Simões ◽  
Mariana D. Cuozzo ◽  
Fernando A. Frieiro-Costa

An inventory of social wasps in Cerrado biome of the southern of the state of Minas Gerais was performed. A comparison between field and Riparian Forest areas was made in relation to species richness; correlations between diversity, sample methods and environmental factors were conducted. A total of 32 species was registered and Polybia fastidiosuscula de Saussure, 1854 was the most abundant species. The higher richness was in the Cerrado Field, as well as the highest diversity index. The temperature and rainfall had significant correlation with species richness and a significant variation in richness between dry and wet seasons was observed. Polybia fastidiosuscula was more abundant in the Riparian Forest during the dry season and in the Cerrado Field during wet season. The study area showed a great diversity of social wasps, with record both widely distributed species such as rare species, which indicates the quality and potential area for future studies.


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