scholarly journals Fluctuation of total number of fish larvae and their mass types depending on environmental factors in the Mesha bay of the Kuibyshev reservoir in 2012-2018

2019 ◽  
Vol 2019 (4) ◽  
pp. 79-86
Author(s):  
Vyacheslav Alekseevich Kuznetsov ◽  
Yuri Aleksandrovich Severov ◽  
Vladimir Vyacheslavovich Kuznetsov ◽  
Firdauz Mubarakovna Shakirova
Keyword(s):  
Species Diversity ◽  
Environmental Factors ◽  
Dominant Species ◽  
Fish Larvae ◽  
Shannon Index ◽  
Total Catch ◽  
Kuibyshev Reservoir ◽  
Third Place ◽  
The Third ◽  
Spring Period

The article analyzes fluctuations of the number of fish larvae in the littoral of the Mesha Bay of the Kuibyshev Reservoir in the spring period of 2012-2018 in relation to the level and tem-perature regimes. The assessment of their species diversity has been given. In these years there were found 7-13 larvae species in catches. The minimal number of larvae species in the catches were registered in 2013, the maximum number - in 2018. The total number of fish larvae varied in these years 57.4-807.0 sp/effort. In terms of 1m3 it made 807.0-5659.1specimens. For all the years of research roach larvae were the dominant species in the catches, ranging from 42.7% to 80.7% of the total catch. The average number of roach larvae was 105.8 sp/effort. The second place in the catches belonged to bream larvae whose average number made 43.4sp/effort (their average part in catches is 29.3%). The third place in the catches in different years belonged to ide larvae, silver bream, bleak and silver crucian. Among them silver bream larvae had the greatest number - 7.5 sp/effort. Larvae of Ide, bleak and silver crucian on average ranged 3.2-3.8 sp/effort. The largest magnitude of the number fluctuation was found in silver bream and bleak. Their variation coefficient ranged within 115.9-117.1%. Bream had a relatively steady replenishment of the larvae (Cv = 37.9%). There is a positive correlation between the abundance (sp.) of roach and bream larvae, but between the abundance indicators (%) the correlation is negative, i.e. the higher the percentage of roach dominance, the smaller the proportion of bream in the catches. Within 2012-2018 Shannon index of species diversity in fish larvae ranged from 0.96 to 2.09 bits. There is a negative correlation between Shannon index and indices of abundance of roach and bream larvae

scholarly journals Fire Intensity Affects the Relationship between Species Diversity and the N Utilization Stability of Dominant Species

Forests ◽  
2019 ◽  
Vol 10 (3) ◽  
pp. 207 ◽  
Author(s):  
Zhaopeng Song ◽  
Yanhong Liu
Keyword(s):  
Species Diversity ◽  
Total Nitrogen ◽  
Dominant Species ◽  
Shannon Index ◽  
Fire Intensity ◽  
Burned Areas ◽  
N Utilization ◽  
The Stability ◽  
The Relationship ◽  
Leaf N

Stabilizing the local elemental stoichiometry is an important step toward restoring species diversity in a damaged ecosystem, especially those affected by wildfire. Stability of nitrogen (N) utilization is mainly affected by wildfire through restoration, which is one of the most important parts of stoichiometric utilization. However, the mechanisms underlying the relationship between N utilization stability and species diversity are not well understood in burned areas. We investigated variation in species diversity and in the stability of leaf N utilization of locally dominant tree species in a series of burned areas during early community restoration following wildfires of different intensities. This study shows that low fire intensity led to an increase in the soil N concentration, and significantly affected the utilization of leaf N. With higher fire intensity, the leaf N concentration first decreased, and then increased as fire intensity increased. The dominant trees showed more stable N utilization at a medium intensity, compared with other intensities, but the stability of N utilization was overall higher for the dominant species than for the regenerating pioneer species. We also concluded that other soil nutrients altered the stability of plant N utilization, which we found was closely related to species diversity during restoration. The Shannon index and N utilization stability in burned areas were most significantly correlated. The N utilization stability regulation between soil total nitrogen (STN) and leaf total nitrogen (LTN) (HSTN-LTN) of Betula platyphylla Suk (BPS) correlated significantly and positively with the increase of the Shannon index (H), but the HSMN-LTN of the dominant species correlated significantly and negatively with H.

Current trends in the structure of eye injuries

2020 ◽  
Vol 21 (3) ◽  
pp. 106-108
Author(s):  
M. N. Ponomareva ◽  
◽  
S. V. Sakharova ◽  
E. M. Pochinok ◽  
E. V. Fomina ◽  
...  
Keyword(s):  
Medical Records ◽  
Young Patients ◽  
Present Stage ◽  
Eye Injuries ◽  
Third Place ◽  
The Third ◽  
Eye Trauma ◽  
Current Trends ◽  
The Poor ◽  
Leading Position

Aim. To identify current trends in hospital eye trauma based on the materials of the specialized ophthalmology department of a round-the-clock hospital. Materials and methods. The analysis of medical records of patients treated in the round-the-clock specialized ophthalmology department of the state medical establishment OKB No. 2 in the period since January 2017-2019. Results. During the analyzed period, 4948 patients were treated, of which 218 patients (5.6%) were identified for nosologies belonging to the category of eye trauma. Men are most often exposed to eye injuries (84%), in addition, in 62% of cases, these are young patients (18-44 years). The structure of eye trauma is almost unchanged: the leading position is occupied by penetrating wounds of the eyeball and contusions, the third place is occupied by burns, through wounds of the eyeball are rare. Conclusions. Given the poor prognosis of the outcome of a severe eyeball injury, it requires the introduction of modern types of microsurgical intervention using endovitreal surgery at the present stage.

Dominant species can produce a negative relationship between species diversity and ecosystem function

Oikos ◽  
2009 ◽  
Vol 118 (5) ◽  
pp. 723-732 ◽  
Author(s):  
Robert P. Creed ◽  
Robert P. Cherry ◽  
James R. Pflaum ◽  
Chris J. Wood
Keyword(s):  
Species Diversity ◽  
Ecosystem Function ◽  
Dominant Species ◽  
Negative Relationship

The Christian character of Christian mystical experiences

1984 ◽  
Vol 20 (3) ◽  
pp. 417-427
Author(s):  
Steven Payne
Keyword(s):  
Common Elements ◽  
Third Place ◽  
Cognitive Value ◽  
The Third ◽  
Affirmative Response ◽  
The Common ◽  
Mystical Experiences ◽  
Contemporary Writers ◽  
Mystical Literature

Are mystical states essentially ‘everywhere the same’? Though this question is notoriously obscure and difficult to answer, many contemporary writers on mysticism seem to favour an affirmative response to it, for a variety of reasons. First of all, some are impressed by the undeniable similarity in the testimony of mystics from widely divergent backgrounds and cultures; like most readers of mystical literature, they are deeply struck by the degree of apparent consensus between Christian, Hindu, and Buddhist contemplatives, for example. Secondly, there is a commendable desire in recent times to adopt a more positive and open-minded approach to other religions, and to acknowledge the value of their spiritual traditions; consequently, Christian authors today tend to focus on the common elements in Christian and non-Christian spiritualities, downplaying any differences. In the third place, those who wish to defend the cognitive value of mystical experiences on the basis of the ‘universal agreement’ of mystics will naturally maintain that there is a fundamental unanimity behind their different reports.

Diversity and community structure of Ephemeroptera in freshwater stream of Megamalai hills, Tamil Nadu, India

ENTOMON ◽  
2021 ◽  
Vol 46 (4) ◽  
pp. 279-284
Author(s):  
S. Barathy ◽  
T. Sivaruban ◽  
Srinivasan Pandiarajan ◽  
Isack Rajasekaran ◽  
M. Bernath Rosi
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Air Temperature ◽  
Tamil Nadu ◽  
Dominant Species ◽  
Diversity Indices ◽  
Low Diversity ◽  
Freshwater Stream ◽  
Species Diversity Indices ◽  
High Diversity

In the study on the diversity and community structure of Ephemeroptera in the freshwater stream of Chinnasuruli falls on Megamalai hills, a total of 523 specimens belonging to thirteen genera and five families were collected in six month periods. Of the five families, Teloganodidae and Leptophlebiidae exhibited high diversity and Caenidae showed low diversity. Choroterpes alagarensis (Leptophlebiidae) is the most dominant species. Diversity indices such as Shannon and Simpson indices showed that diversity was maximum in November and December and it was minimum in August and January. Canonical Correspondence Analysis revealed that rainfall, water flow, turbidity, and air temperature were the major stressors in affecting the Ephemeropteran community structure.

Hubungan Alokasi Dana Amil dan Efektivitas Pengelolaan Zakat Dalam Perspektif Hukum Ekonomi Syariah pada Baznas Kota Bandar Lampung

2022 ◽  
Vol 4 (3) ◽  
pp. 595-610
Author(s):  
Indah Harum Rezeki ◽  
Muhammad Iqbal Fasa ◽  
A. Kumedi Ja’far
Keyword(s):  
Poverty Alleviation ◽  
Field Research ◽  
Third Place ◽  
Fund Allocation ◽  
The Third ◽  
Economic Law ◽  
Welfare And Poverty

Zakat is an act of worship contained in the pillars of Islam. In the pillars of Islam, tithing is in the third place after prayer. The management of zakat funds aims to increase the usability and efficiency of zakat which has an impact on the realization of justice, community welfare and poverty alleviation in the vicinity. The Amil Fund Allocation in Bandar Lampung City has increased from 2018-2020. In managing the allocation of amil funds, the greater the zakat collection, the greater the allocation of amil rights funds. The research conducted by the author is (Field Research), direct research is carried out in the field using respondent data. Zakat assets funds that occur in BAZNAS Bandar Lampung city have not been maximized for amil rights, because the collection that occurs at BAZNAS Bandar City funds infaq shodaqah is greater than zakat assets. Therefore, to fulfill amil rights, BAZNAS Bandar Lampung City uses infaq shodaqah funds to fulfill amil rights. Keywords: Amil Fund, Zakat Management, Sharia Economic Law

The 'Third Place': Investigating an ESL Classroom Interculture

2004 ◽  
Vol 22 (1) ◽  
pp. 1 ◽  
Author(s):  
Xuemei Li ◽  
Anita Girvan
Keyword(s):  
Second Language ◽  
Language Learning ◽  
Language Learners ◽  
Second Language Learners ◽  
Cultural Identities ◽  
Third Place ◽  
Cultural Space ◽  
The Third ◽  
The Creation ◽  
Esl Classroom

This study focuses on a multicultural ESL classroom with the purpose of exploring the creation of new individual and cultural identities and the formation of interculture. Through on-site observations and interviews with second-language learners and their teacher, the study presents findings about the dynamics, quandaries, complexity, and diversity of classroom interculture. The metaphor of the 'third place' (Kramsch, 1993) aptly captures the nature of this interculture in its fluidity and ambiguity. Perceiving language-learning in this way allows one to look beyond the traditional dichotomous views and approaches to culture and identity in ESL settings and to describe properly the enriching process of creating new identity and new cultural space that is greater than the sum of individual cultures.

scholarly journals Composition and diversity of anurans in the Restinga of the Conde municipality, northern coast of the state of Bahia, northeastern Brazil

2016 ◽  
Vol 16 (3) ◽  
Author(s):  
Felipe Augusto Trindade Gondim-Silva ◽  
Alessandra Rodrigues Santos Andrade ◽  
Rafael Oliveira Abreu ◽  
Jamile Santos Nascimento ◽  
Geovane Paixão Corrêa ◽  
...  
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Species Composition ◽  
Rainy Season ◽  
Dominant Species ◽  
The State ◽  
Northeastern Brazil ◽  
Freshwater Wetland ◽  
Northern Coast ◽  
Anuran Species

Abstract The Conde municipality is located in the northern coast of the state of Bahia (NC), northeastern Brazil, and is part of the Atlantic Tropical domain. The anuran fauna of the northern portion of the NC is still poorly known if compared to the southern portion. The Restinga is one of the predominant environments of the coastal plains of the NC and it is characterized essentially by presenting sandy soil covered by herbaceous and shrubby vegetation. The objective of this study was to determine the anuran species composition and diversity for the Restinga of the Conde municipality. Sampling was carried out at night by active search over four periods of five consecutive days each, two over the 'main rainy season' and two in a 'lesser rainy season', using 14 sample units (SUs) and five extra sample plots (EPs). We calculated dominance and species diversity using the Berger-Parker and Shannon-Wiener H' indices, respectively. We used accumulation curves and the Jackknife 1 estimator to estimate anuran species richness, considering only the data obtained from the SUs. We recorded 713 anuran specimens distributed within 33 species, 13 genera and five families (Bufonidae, Craugastoridae, Hylidae, Leptodactylidae and Microhylidae). The Hylidae and Leptodactylidae families had the highest species richness. Considering only the SUs (Jackknife 1 estimator in brackets), we recorded 28 species in the study area (33.9 ± 2.3), 13 in Shrubby Vegetation Zones - SVZ (20.8 ± 2.9) and 25 in Freshwater Wetland Zones - FWZ (28.9 ± 1.9). The abundance and species diversity of the FWZ (n = 638 specimens; H'= 2.4) were higher than those recorded for the SVZ (n = 52 specimens; H' = 1.9). The SVZ and FWZ showed distinct dominant species, wherein Pristimantis paulodutrai was the dominant species in SVZ and Scinax fuscomarginatus in FWZ. The Restinga of the Conde municipality stands out as the one with the highest anuran species richness already recorded considering only SVZ and FWZ. Moreover, its anuran species composition represented 55% of the anuran species known for the NC and included taxa common to three different morphoclimatic domains (Tropical Atlantic, Cerrado and Caatinga).

scholarly journals Fish species diversity in headwaters streams of Paraguay and Paraná Basins

2007 ◽  
Vol 50 (6) ◽  
pp. 1033-1042 ◽  
Author(s):  
Yzel Rondon Súarez ◽  
Sabrina Bigatão Valério ◽  
Karina Keyla Tondado ◽  
Alexandro Cezar Florentino ◽  
Thiago Rota Alves Felipe ◽  
...  
Keyword(s):  
Species Richness ◽  
Species Diversity ◽  
Environmental Factors ◽  
Fish Species ◽  
Total Species Richness ◽  
Paraná Basin ◽  
Parana Basin ◽  
Number Of Individuals ◽  
Total Species ◽  
Fish Species Diversity

The influence of spatial, temporal and environmental factors on fish species diversity in headwater streams in Paraguay and Paraná basins, Brazil was examined. A total of 4,605 individuals were sampled, distributed in 60 species. The sampled streams in Paraná basin presented a larger total species richness (42) than Paraguay streams (40). However the estimated richness was larger in Paraguay basin (53) than Paraná streams (50). The streams of Paraná basin had a greater mean species richness and evenness, while more individuals per sample were found in the Paraguay basin. Difference between the sub-basins were found in the Paraguay basin, while for the basin of Paraná, richness and evenness vary significantly between the sub-basins, but the number of individuals varied seasonally. The most important environmental factors to species diversity and abundance were altitude, water temperature, stream width and stream depth for both the basins.

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