Mangroves of Maharashtra State (India): Diversity and Sustainability

2021 ◽  
Vol 4 (3) ◽  
pp. 178-207
Author(s):  
Narendra Kulkarni ◽  
Leela J. Bhosale
Keyword(s):  
Arabian Sea ◽  
Floristic Composition ◽  
Scylla Serrata ◽  
Human Pressure ◽  
Zonation Pattern ◽  
Minimum Area ◽  
Human Disturbances ◽  
Border Line ◽  
The Common ◽  
Uca Lactea

Mangroves are defined as tropical and sub-tropical forests with a diverse floristic composition bordering the sea on muddy or peaty low lands periodically submerged or influenced by the tides. Maharashtra is one of the coastal states of India, with many rivers emerging from Sahyadri ranges and meeting the Arabian Sea. The coast line available for Maharashtra state is 720 km. Ratnagiri, Sindhudurg, Raigad, Thane and Mumbai are the five coastal districts of the state of Maharashtra. All the districts together have more than 55 small, medium and large estuaries. It is found that estuaries like Vijaydurg shows maximum mangrove area of  and estuaries like  Kelye shows minimum area. It also reveals that the species like E. agallocha, A. ilicifolius, R. mucronata, A. officinalis and A. marina show maximum percentage of occurrence as compared to the species like X. granatum, C. iripa, B. cylindrica, S. caseolaris, H.fomes and T. gallica. The studies on mangrove biodiversity in five districts show the major variations. The study found 20 typical mangroves, 10 halophytic species, 13 border line mangroves and 15 mangrove associates from all these districts. Among these the uncommon and threatened greet pied Hornbill (Buceros bicornis) have been found at some sites. Some of the common crab species are Uca roseus, Uca lactea annulipes and Uca vocans. The species like Scylla serrata and Portunus pelagius are edible. In the present study 13 sp. of Molluscs, 25 species of edible fish, 9 species of Reptilia, 45 sp. of birds and 10 species of Mammalia are found.  It is found that out of twenty-four species analyzed, some species are analyzed as Critically Endangered (CR), some are found Endangered (EN). From this study it is found that all sites being under human pressure the natural zonation pattern is not seen. The existing zonation pattern is a result of natural distribution and human disturbances.

scholarly journals Forest characteristics and population structure of a threatened palm tree Caryota obtusa in the karst forest ecosystem of Yunnan, China

2021 ◽  
Author(s):  
Cindy Q Tang ◽  
Xia Lu ◽  
Min-Rui Du ◽  
Shu-Li Xiao ◽  
Shuaifeng Li ◽  
...  
Keyword(s):  
Population Structure ◽  
Forest Ecosystem ◽  
Human Activities ◽  
Diversity Index ◽  
Floristic Composition ◽  
Forest Community ◽  
Palm Tree ◽  
Human Disturbances ◽  
Karst Forest ◽  
Wiener Diversity Index

Abstract Aims Caryota obtusa of Arecaceae is a fascinating palm tree native to southwestern China, India, Myanmar, Thailand, Laos, and Vietnam. It is an economically important and threatened species and appears as a canopy dominant in some karst areas in Yunnan. We aim to clarify the forest structure, species diversity, population status and regeneration dynamics of C. obtusa in the karst forest ecosystem of Yunnan, China. Methods We established 56 vegetation plots dominated by C. obtusa in 10 counties of southern Yunnan. As based on the plot data, we analyzed the community stratification, floristic composition, and C. obtusa’s population structure. We used questionnaires to interview local people and recorded the human activity history on C. obtusa-dominated forests. Important findings: C. obtusa palm forests were distributed on limestone mountain slopes and gullies. There were seven forest community types. The stratification of each community included arborous layer, shrub layer and understory. The communities had rich species composition. For all the plots as a whole of each community type, Shannon-Wiener diversity index of either woody or herbaceous species ranged from 2.1-3.8. The DBH-class frequency distribution of C. obtusa was a multimodal type. The regeneration was sporadic and depended on intermediate natural disturbances. In current population structure, number of C. obtusa trees with small DBHs was consisted mainly of the forest communities with no or a slight degree of human disturbances. Intensive human activities terribly hindered C. obtusa’s recruitment, followed by medium intensity of human activities.

scholarly journals «God is dead» as an apophatic text of the borderline consciousness

2021 ◽  
pp. 158-173
Author(s):  
Irina Yedoshina
Keyword(s):  
Point Of View ◽  
Main Theme ◽  
Human Society ◽  
Border Line ◽  
Compositional Structure ◽  
Dionysius The Areopagite ◽  
The World ◽  
Introductory Part ◽  
The Subject ◽  
The Common

The main theme of the article is the borderline conscious-ness; the subject is the novella «God Is Dead» (1922) by S. D. Krzhizhanovsky as a reflection of the borderline consciousness. The purpose of the article is to reveal the specifics of the borderline conscious-ness in general and its features in the culture of the late 19 th and early 20 th centuries using the example of the analysis of the novella «God Is Dead», as well as of other texts similar in content and the time of writing. The main methods are ontological, historical-cultural, analytical, and com-parative. The introductory part defines the main characteristics of the bor-derline consciousness and also clarifies the etymology and the immanence of the process in development of the human society. Further, the author of the article identifies the substantive aspects in the concept of «apophati-cism», draws on the names of philosophers that are relevant to the thoughts of S. D. Krzhizhanovsky, (F. Nietzsche, A. Schweitzer, M. Heidegger), emphasizes that negation has nothing to do with God, from the point of view of Dionysius the Areopagite. The common and different aspects of philosophical and artistic views on apophaticism are also analyzed (F. Nietzsche, K. K. Sluchevsky). Further, the researcher carries out a de-tailed analysis of the novella «God Is Dead»by S. D. Krzhizhanovsky: the compositional structure is examined, an overview of the characters and their peculiarities is given, biblical and artistic allusions, their correlation with the specificity of the Soviet regime are revealed. The author of the article specially emphasizes that S. D. Krzhizhanovsky resorts to apophaticism as a characteristic of this time. The polemic part designates different approaches in the modern interpretation of apophaticism in the novella by S. D. Krzhizhanovsky, which do not coincide with the understanding of the author of this article. In the final observations, it is emphasized: the border-line consciousness thinks within the boundaries, which is reflected in art and outlook on the world.

The effect of several kinds of baits and moon phases on the catch of mangrove crab (Scylla serrata) with trap

2013 ◽  
Vol 1 (1) ◽  
pp. 45
Author(s):  
Mukhlis A Kaim ◽  
Emil Reppie ◽  
Johnny Budiman
Keyword(s):  
Block Design ◽  
Scylla Serrata ◽  
Moon Phase ◽  
Moon Phases ◽  
Mangrove Crab ◽  
Randomized Block Design ◽  
Different Types ◽  
The Common ◽  
New Moon ◽  
Mangrove Crabs

Trap is one of the common fishing gears used by the fishermen to catch mangrove crabs. Using several kinds of bait could increase the fishing power of the traps. The objective of this research was to study experimentally the effect of several kinds of trap baits and moon phases toward the capture of mangrove crab. Catch data were collected using 12 units of traps,which operated in the estuary waters of Kalurae Village, Regency of Sangihe Islands. Four kinds of bait were used to trap: scads mackerel (Decapterus macarellus), little tuna (Euthynnus sp.), trevally(Caranx sp.) and chicken innards. Data were analyzed by randomized block design. Analysis of variance showed that different types of bait on the trap and moon phase caused highly significant effect on catch. Least significant differences test showed that using scads mackerel bait on the trap was not significantly different from little tuna bait, but differed significantly from trevally and chicken innards baits. Similarly, using little tuna bait was not significantly different from trevally bait, but differed significantly from chicken innards bait; and trevally bait was not different from chicken innards bait. Catching mangrove crabs with traps should use scads mackerel and little tuna baits, and be operated around the new moon phase© Bubu merupakan alat tangkap yang umum digunakan nelayan untuk menangkap kepiting bakau. Penggunaan beberapa jenis umpan, diduga dapat meningkatkan fishing power dari alat tangkap bubu. Penelitian ini bertujuan mempelajari pengaruh jenis umpan bubu dan fase umur bulan di langit terhadap hasil tangkapan kepiting bakau; dikerjakan dengan metode eksperimental. Data tangkapan dikumpulkan dengan mengoperasikan 12 unit bubu, di perairan estuari Kampung Kalurae, Kabupaten Kepulauan Sangihe. Empat jenis umpan yang diperlakukan, yaitu ikan layang (Decapterus macarellus), tongkol (Euthynnus sp.), selar (Caranx sp.) dan jeroan ayam. Data dianalisis berdasarkan Rancangan Acak Kelompok. Analisis Sidik Ragam menunjukkan bahwa perbedaan jenis umpan pada bubu dan fase umur bulan berpengaruh sangat nyata terhadap hasil tangkapan. Uji Beda Nyata Terkecil menyatakan bahwa penggunaan jenis umpan layang pada bubu tidak berbeda nyata dengan umpan tongkol, tetapi berbeda sangat nyata dengan penggunaan umpan selar dan umpan jeroan. Demikian juga penggunaan umpan tongkol tidak berbeda nyata dengan umpan selar, tetapi berbeda sangat nyata dengan umpan jeroan; sedangkan penggunaan antara umpan selar dan jeroan tidak ada perbedaan yang nyata. Umpan ikan layang dan ikan tongkol serta fase umur bulan I dan fase IV memberikan hasil tangkapan kepiting bakau yang lebih baik©

scholarly journals The Extent and Floristic Composition of the Rice Lake Plains Based on Remnants

2008 ◽  
Vol 122 (1) ◽  
pp. 1 ◽  
Author(s):  
Paul M. Catling
Keyword(s):  
Tallgrass Prairie ◽  
Native Species ◽  
Floristic Composition ◽  
Schizachyrium Scoparium ◽  
Pteridium Aquilinum ◽  
Minimum Area ◽  
Monarda Fistulosa ◽  
Native Flora ◽  
Field Reconnaissance ◽  
Species Lists

A study of the floristic composition and extent of the Rice Lake Plains in central southern Ontario was undertaken to provide a basis for protection and management and to contribute to a better understanding of pre-settlement vegetation. During field reconnaissance 42 remnant sites were discovered. Complete species lists were generated for 24 of these sites and a total of 260 native species was recorded of which 61 were present at more than half of the sites. Less than 10% of the native flora of dry, open ground is believed to be extirpated. The most frequent species and those dominating many of the remnants included Andropogon gerardii, Carex siccata, Ceanothus americanus, Pteridium aquilinum, Sorghastrum nutans, and Toxicodendron rydbergii, all of which are characteristic dominants of tallgrass prairie and related habitats in the midwest. It is believed that both composition and frequency are much the same, but not exactly the same, as existed in pre-settlement times. A principal coordinate analysis based on Jaccard’s coefficient derived from a matrix of presence/absence data for 84 regionally rare species in 24 sites revealed three major groupings: (1) open sand and characteristic sand barren flora, including Dichanthelium sabulorum, Carex merritt-fernaldii, Cyperus lupulinus, Polygonum douglasii, Selaginella rupestris, and Sporobolus cryptandrus; (2) prairie sites with Desmodium canadense, Monarda fistulosa, Penstemon hirsutus, Ranunculus rhomboideus, and Schizachyrium scoparium; (3) high-diversity sites with savannah vegetation, including species characteristic of both prairie and open woodland, including Asclepias exaltata, Desmodium glutinosum, Erigeron pulchellus, Solidago arguta, and Taenidia integerrima. Correspondance analysis suggested a succession from sand barren to woodland and ordered species along a successional axis. In addition to three major associations, there was some regional variation with closer sites sharing species such as Lupinus perennis, Liatris cylindracea and Dichanthelium oligosanthes. The probable extent of plains vegetation revealed by remnants was determined by overlaying remnant sites on the soil landscapes and soil types to determine the extent of the associated soil or landscape thus providing a clue to the extent of the plains vegetation. Results of both the soil landscape and soil data analyses were subjected to restrictions based on exposure, elevation and historical information so as to develop a concept of minimum area. The minimum area of plains vegetation including prairie, sand barren and savannah was estimated to be 263 km2 on the basis of distribution of appropriate soils and 590 km2 on the basis of soil landscapes. Thus the Rice Lake Plains included an area of prairie, savannah and sand barrens approximately 600 km2 in extent and extending as an essentially continuous band 123 km long and up to 25 km wide along the top and north slope of the Oak Ridges Moraine from the Ganaraska Highland west of Rice Lake eastward to the Murray Hills and the Trent River and was one of the largest areas of plains vegetation in the eastern Great Lakes region.

scholarly journals Revisiting the Notion of ‘Intensity’ Inherent in Common Article 3: An Examination of the Minimum Threshold Which Satisfies the Notion of ‘Intensity’ and a Discussion of the Possibility of Applying a Method of Cumulative Assessment

2017 ◽  
Vol 17 (2) ◽  
pp. 7-38 ◽  
Author(s):  
Martha M. Bradley
Keyword(s):  
Armed Conflict ◽  
Armed Conflicts ◽  
Minimum Threshold ◽  
Border Line ◽  
Threshold Test ◽  
Bilateral Approach ◽  
The Common ◽  
Armed Violence ◽  
The Relationship ◽  
International Character

Summary The 2016 ICRC Commentaries reveal an appreciation that the intensity of violence test which is included in the Common Article 3 understanding of the notion of ‘intensity’ has arrived at a point at which situations formerly regarded as instances of ‘sporadic violence’ have become so violent as to be reclassified as armed conflict not of an international character in that the situation resembles ‘protracted armed violence’. The difficulty lies in determining whether a lower intensity situation is sufficiently violent to constitute a Common Article 3-type non-international armed conflict. The minimum threshold test in relation to the notion of ‘intensity’ in Common Article 3 pertinently is concerned with the relationship between the terms ‘duration’ and ‘intensity’. At what point has a violent situation lasted long enough to exceed our understanding of the meaning of ‘sporadic’ and, thus, has become a non-international armed conflict? Is the method of assessing the level of violence in the context of Common Article 3 limited to a bilateral approach or is an aggregate assessment framework permissible as an application in border-line low-intensity non-international armed conflicts? These questions illustrate the importance of gaining a comprehensive understanding of the phrase ‘protracted armed violence’.

scholarly journals PAKISTAN’S MAGNITUDE FOR CHINA: A NARRATIVE OF GEO-STRATEGIC BARGAIN

2021 ◽  
Vol 38 ◽  
pp. 109-125
Author(s):  
Muhammad Hassan ◽  
Rizwan Muhammad ◽  
Pasand Ali Khoso
Keyword(s):  
Arabian Sea ◽  
Bilateral Trade ◽  
Trade Agreement ◽  
Economic Benefits ◽  
Bilateral Trade Agreement ◽  
Central Asian ◽  
The World ◽  
Current Scenario ◽  
Geographical Position ◽  
The Common

This paper attempts to analyse the geo-strategic magnitude of Pakistan for China. Including other factors, the geographical position of Pakistan plays an important role in the formulation of their mutual ties. Sino-Indian conflict further enhanced Pak-China relationship mainly reflecting their reciprocal interests. In addition to geo-political ties, economic benefits attracted Chinese attention to maintain a friendly relationship with Pakistan by signing bilateral trade agreement during early 1960s. Similarly, Pakistan provided a naval base to China, which decreased the influence of USA and India in the Arabian Sea, Indian Ocean and Central Asian States. However, due to the world third deepest seaport (Gwadar Port), Pakistan became more valuable to China. Moreover, launching of China- Pakistan Economic Corridor (CPEC) in 2014 has greatly enhanced the geographical importance of Pakistan for the whole region including China. The scope of present study provides a realization to the fact that significance of Pakistan for Chinese interest is beyond the common thinking. This article tries to pin point the current scenario with increasing significance of Pakistan for China.

Composition of Subtidal Macroalgal Communities of the Lower Gulf Waters of South Australia, with Reference to Water Movement and Geographical Separation

1998 ◽  
Vol 46 (6) ◽  
pp. 657 ◽  
Author(s):  
Anthony C. Cheshire ◽  
Gregory J. Collings
Keyword(s):  
Water Movement ◽  
South Australia ◽  
Floristic Composition ◽  
Wave Force ◽  
Total Biomass ◽  
Common Occurrence ◽  
Geographical Separation ◽  
The Common ◽  
Biomass Ratio ◽  
Highly Correlated

Differences exist in the floristic composition of the canopy of macroalgal communities in the partially protected waters of sites on the Yorke and Fleurieu peninsulas, South Australia. These differences were quantified and related to the effects of wave force and geographical separation. The canopies of the communities were dominated by species of Cystophora J.Agardh and/or Sargassum C.Agardh and the biomass ratio of these genera was found to be highly correlated with wave force. Diversity was maximal at sites of intermediate exposure, whereas total biomass increased with the wave energy of the site. The common occurrence of some species at a number of sites supports the proposition that these sites occur within a single biogeographic province. The composition of these protected gulf communities is consistent with the trends previously demonstrated for exposed oceanic sites of the same region.

scholarly journals Ecosystem dynamics after forest fire. Blideen Atlas case

2021 ◽  
pp. 67-75
Author(s):  
Melouani Naziha ◽  
Kadik Leila
Keyword(s):  
Forest Cover ◽  
Plant Biomass ◽  
Floristic Composition ◽  
Terrestrial Ecosystems ◽  
Ecosystem Dynamics ◽  
Ecological Data ◽  
Human Disturbances ◽  
The North ◽  
Plant Groups ◽  
One Year

Human disturbances affect the majority of terrestrial ecosystems. The radical changes in the behaviour of ecological systems, partial or total destruction of plant biomass, often with the death of fundamental entities. Of these disturbances, fires affect many terrestrial ecosystems, particularly forests, by changing their floristic composition, their structure and their functioning; the global average annual forest area burned is estimated at 65 million ha. The Mediterranean basin, a hotspot, annually loses between 0.5 and 1 million hectares of forest. In Algeria, the annual average of areas destroyed by fire is between 45,000 and 50,000 ha. Our work set out to study the changes in the plant coverage of the land one year after the passage of fire. We studied the effects at the floristic, ecological and dynamic level in a forest ecosystem located in the north of Algeria (Atlas Blideen). The phytoecological inventory of vegetation (74 surveys, 162 species) was carried out from subjective sampling. To highlight the different groupings in the study area, classical statistical treatments (factorial analysis of correspondences) were applied to the floristic and ecological data. The results of computer processing made it possible to individualize and classify four plant groups according to the degree of the fire. The qualitative and quantitative analysis of these groups shows a therophytization of the flora, due to the regression of the forest cover (disappearance of the phanerophytes) caused by the passage of fire, with a floral procession represented mainly by Asteraceae, Poaceae and Fabaceae and an index disturbance which greatly exceeds 50%. However, some tree and shrub taxa such as cork oak, holm oak and Pistacia lentiscus tree have the capacity to reappear by rejecting the calcined stumps.

Catalogue reduction techniques

1978 ◽  
Vol 48 ◽  
pp. 389-390 ◽  
Author(s):  
Chr. de Vegt
Keyword(s):  
Adjustment Process ◽  
Proper Motions ◽  
Measuring Process ◽  
Aerial Photogrammetry ◽  
Reduction Techniques ◽  
Observational Technique ◽  
The Common ◽  
Astrometric Data

AbstractReduction techniques as applied to astrometric data material tend to split up traditionally into at least two different classes according to the observational technique used, namely transit circle observations and photographic observations. Although it is not realized fully in practice at present, the application of a blockadjustment technique for all kind of catalogue reductions is suggested. The term blockadjustment shall denote in this context the common adjustment of the principal unknowns which are the positions, proper motions and certain reduction parameters modelling the systematic properties of the observational process. Especially for old epoch catalogue data we frequently meet the situation that no independent detailed information on the telescope properties and other instrumental parameters, describing for example the measuring process, is available from special calibration observations or measurements; therefore the adjustment process should be highly self-calibrating, that means: all necessary information has to be extracted from the catalogue data themselves. Successful applications of this concept have been made already in the field of aerial photogrammetry.

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