Ekologia Bratislava最新文献_第8页

PERBANDINGAN KADAR FLAVONOID EKSTRAK ETANOL DAUN KELENGKENG (Dimocarpus logan L.) DENGAN VARIASI METODE EKSTRAKSI 类黄酮乙醇提取物水平比较。采用不同的提取方法

Ekologia Bratislava Pub Date : 2022-04-27 DOI: 10.33751/ekologia.v22i1.5042

Z. Rusli, Yulianita Yulianita, Elfrida Erawati Sitanggang

{"title":"PERBANDINGAN KADAR FLAVONOID EKSTRAK ETANOL DAUN KELENGKENG (Dimocarpus logan L.) DENGAN VARIASI METODE EKSTRAKSI","authors":"Z. Rusli, Yulianita Yulianita, Elfrida Erawati Sitanggang","doi":"10.33751/ekologia.v22i1.5042","DOIUrl":"https://doi.org/10.33751/ekologia.v22i1.5042","url":null,"abstract":"Longan plants (Dimocarpus logan L.) are generally used by the community only for their fruit. Longan leaves contain secondary metabolites such as flavonoids, polyphenols, saponins, and tannins. Flavonoids are polyphenolic compounds and have antioxidant properties that are not heat-resistant, therefore a suitable method is needed for extracting flavonoids, especially methods that do not use heat. Maceration extraction method is an extraction method by immersing simplicia at room temperature, while the Microwave Assisted Extraction (MAE) extraction method is an extraction method using microwave radiation. The study aims to determine the most effective method for flavonoid content of longan leaves using 2 extraction methods, namely maceration and MAE. Determination of flavonoid content was done using Aluminium chloride reagent whose absoption was measured using UV-Vis spectrophotometry. The results showed that the best extraction method to produce the highest flavonoid content in 70% ethanol extract of longan leaves was the Microwace Assisted Extraction method which produced flavonoid levels of 1.32 ± 0,09%.","PeriodicalId":53683,"journal":{"name":"Ekologia Bratislava","volume":"199 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75985068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PENENTUAN LOKASI BASIS DAN NON BASIS PENYEBARAN VIRUS CORONA (COVID-19) MENGGUNAKAN METODE LOCATION QUOTIENT (LQ) 使用商计算方法(LQ)确定CORONA病毒(COVID-19)的基地和非基地传播位置

Ekologia Bratislava Pub Date : 2022-04-27 DOI: 10.33751/ekologia.v22i1.4892

Toto Iswanto, Maya Widyastiti

{"title":"PENENTUAN LOKASI BASIS DAN NON BASIS PENYEBARAN VIRUS CORONA (COVID-19) MENGGUNAKAN METODE LOCATION QUOTIENT (LQ)","authors":"Toto Iswanto, Maya Widyastiti","doi":"10.33751/ekologia.v22i1.4892","DOIUrl":"https://doi.org/10.33751/ekologia.v22i1.4892","url":null,"abstract":"The corona virus pandemic that has hit the entire world is a threat to the order of people’s lives in all field so it must be solved quickly. This study aims to determine the location of the Basic and non-Basic of the spread of corona virus in Lubuk Besar district, Province of Bangka Belitung Island. Data used is this study are the number of population and the number of COVID-19 cases in Lubuk Besar district, Bangka Belitung Province. This research is a descriptive type of research with a quantitative approach using the Location Quotient Method. The results showed that in January 2021 there are 4 villages that became the basis location for the spread of the corona virus, i.e. Kulur Village with LQ value is 1.634581, Kulur Ilir Village with LQ value is 1.618289, Lubuk Besar Village with LQ value is 1.914148, and Perlang Village with LQ value is 1.412130, and the other villages are non-basic. In February 2021 the villages that became the basis are Kulur Ilir Village with LQ value is 1.182939, Perlang Village with LQ value is 1.376094, and Trubus Village with LQ value is 2.996931, and the other villages are non-basic location. In March 2021, Perlang Village with LQ value is 1.184505 and Trubus Village with LQ value is 5.600585 became the basis for the spread of the corona virus, and the other villages are non-basic location.","PeriodicalId":53683,"journal":{"name":"Ekologia Bratislava","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80121655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PENGEMBANGAN PANGKALAN DATA KERAGAMAN SPESIES ANURA DI CAGAR ALAM TELAGA WARNA

Ekologia Bratislava Pub Date : 2022-04-27 DOI: 10.33751/ekologia.v22i1.4733

Wahyu Prihatini, Sata Yoshida Srie Rahayu, Nida Masyidatul Madyan Al-Adhari

{"title":"PENGEMBANGAN PANGKALAN DATA KERAGAMAN SPESIES ANURA DI CAGAR ALAM TELAGA WARNA","authors":"Wahyu Prihatini, Sata Yoshida Srie Rahayu, Nida Masyidatul Madyan Al-Adhari","doi":"10.33751/ekologia.v22i1.4733","DOIUrl":"https://doi.org/10.33751/ekologia.v22i1.4733","url":null,"abstract":"The Telaga Wama Natural Reserve (CATWA) at Bogor Regency, West Java Province is a biodiversity conservation area, however, the changed of some of the area's functions into a Nature Tourism Park can affect the quality of its ecosystem. One approach to evaluate ecosystem quality is through the analysis of Anura species diversity. The continuity of the Anuras eggs and larvae is influenced by the presence of pollutants in the waters. The availability of Anura species diversity database can be an indication of the aquatic ecosystem quality at CATWA. This research was conducted using the Visual Encounter Survey method at five sampling locations in CATWA, namely river, lake, swamp, forest pond, and waterfall. Observations of tadpoles were carried out twice a week, for four weeks, accompanied by physical-chemical measurements of the waters, namely DO, BOD, COD, temperature, pH, depth, and turbidity. The Anura diversity database is made up of a time series, combining of this study result, and previous reports. This study had identified 10 species of tadpoles from six Anura families, namely Dicroglossidae, Megophyridae, Ranidae, Bufonidae, Rhachoporidae and Microhylidae. The level of species diversity is moderate (H'=2.29). Turbidity and water temperature have the highest correlation with species diversity. The water quality in CATWA was relatively good, and able to support the life of Anura. This is also evidenced by the presence of species representatives from all Anura families in Java Island.","PeriodicalId":53683,"journal":{"name":"Ekologia Bratislava","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91328490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Ornithological Zoning of the Azov–Black Sea Dry Steppe Enclave of Europe 欧洲亚速海-黑海干草原飞地的鸟类区划

Ekologia Bratislava Pub Date : 2022-03-01 DOI: 10.2478/eko-2022-0009

Yuriy Andriushchenko, V. Vorovka

{"title":"The Ornithological Zoning of the Azov–Black Sea Dry Steppe Enclave of Europe","authors":"Yuriy Andriushchenko, V. Vorovka","doi":"10.2478/eko-2022-0009","DOIUrl":"https://doi.org/10.2478/eko-2022-0009","url":null,"abstract":"Abstract The scheme of ornithological zoning of the Azov–Black Sea dry steppe enclave of Europe has been presented in the article based on domination of individual ornithological complexes, depending on the landscape structure of the territory. This enclave is a unique region due to its utmost western location and moderate continental climate. Its typical natural features and factors of their formation have been determined. The anthropogenic transformations of region have been characterized, and peculiarities of landscape changes have been caused by them. It has been found that the agro-landscapes are dominated in the Azov–Black Sea dry steppe enclave by the area. The schemes of physical–geographical zoning have been determined, which are suitable for ornithological zoning of the region; the dependence of composition of ornithological fauna on predominant landscapes has been revealed. On this basis, the scheme of ornithological zoning of the mentioned region has been proposed. The flat interfluve-steppe, stony-steppe, sandy-steppe, floodplain-river, and liman-marine ornithological areas have been singled out and have been characterized. The main differences in the ornithological regions are correlations of predominant and codominant ornithological faunistic complexes, which depend on the area landscapes and natural and anthropogenic transformation of their components; they are relief, soil, water bodies, and vegetation.","PeriodicalId":53683,"journal":{"name":"Ekologia Bratislava","volume":"41 1","pages":"78 - 89"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41415126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

New Investigation and Challenge for Spatiotemporal Drought Monitoring Using Bottom-Up Precipitation Dataset (SM2RAIN-ASCAT) and NDVI in Moroccan Arid and Semi-Arid Rangelands 摩洛哥干旱和半干旱牧场利用自下而上降水数据集（SM2RAIN-ASCAT）和NDVI进行时空干旱监测的新调查和挑战

Ekologia Bratislava Pub Date : 2022-03-01 DOI: 10.2478/eko-2022-0010

Asmae Zbiri, Azeddine Hachmi, Dominique Haesen, Fatima Ezzahrae El Alaoui-Faris

{"title":"New Investigation and Challenge for Spatiotemporal Drought Monitoring Using Bottom-Up Precipitation Dataset (SM2RAIN-ASCAT) and NDVI in Moroccan Arid and Semi-Arid Rangelands","authors":"Asmae Zbiri, Azeddine Hachmi, Dominique Haesen, Fatima Ezzahrae El Alaoui-Faris","doi":"10.2478/eko-2022-0010","DOIUrl":"https://doi.org/10.2478/eko-2022-0010","url":null,"abstract":"Abstract Remotely sensed soil moisture products showed sensitivity to vegetation cover density and soil typology at regional dryland level. In these regions, drought monitoring is significantly performed using soil moisture index and rainfall data. Recently, rainfall and soil moisture observations have increasingly become available. This has hampered scientific progress as regards characterization of land surface processes not just in meteorology. The purpose of this study was to investigate the relationship between a newly developed precipitation dataset, SM2RAIN (Advanced SCATterometer (SM2RAIN-ASCAT), and NDVI (eMODIS-TERRA) in monitoring drought events over diverse rangeland regions of Morocco. Results indicated that the highest polynomial correlation coefficient and the lowest root mean square error (RMSE) between SM2RAIN-ASCAT and NDVI were found in a 10-year period from 2007 to 2017 in all rangelands (R = 0.81; RMSE = 0.05). This relationship was strong for degraded rangeland, where there were strong positive correlation coefficients for NDVI and SM2RAIN (R = 0.99). High correlations were found for sparse and moderate correlations for shrub rangeland (R = 0.82 and 0.61, respectively). The anomalies maps showed a very good similarity between SM2RAIN and Normalized Difference Vegetation Index (NDVI) data. The results revealed that the SM2RAIN-ASCAT and NDVI product could accurately predict drought events in arid and semi-arid rangelands.","PeriodicalId":53683,"journal":{"name":"Ekologia Bratislava","volume":"41 1","pages":"90 - 100"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42150306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Physicochemical Water Quality Indicators in the Neretva River Basin (B&H) With Reference to Ecological Conditions for Endemic Salmonids Neretva河流域(B&H)的理化水质指标与特有鲑鱼生态条件的关系

Ekologia Bratislava Pub Date : 2022-03-01 DOI: 10.2478/eko-2022-0001

I. Rozić, A. Ivanković

引用次数: 0

Temporal Variation in Pollinators’ Visitation of Lantana camara in a Tropical Urban Landscape: Does Butterfly Abundance and Richness Drive the Fruit Set? 热带城市景观中传粉者访花大蕉的时间变化:蝴蝶的丰度和丰富度驱动坐果吗?

Ekologia Bratislava Pub Date : 2022-03-01 DOI: 10.2478/eko-2022-0006

K. Cézar, E. Franklin, C. E. Pinto

{"title":"Temporal Variation in Pollinators’ Visitation of Lantana camara in a Tropical Urban Landscape: Does Butterfly Abundance and Richness Drive the Fruit Set?","authors":"K. Cézar, E. Franklin, C. E. Pinto","doi":"10.2478/eko-2022-0006","DOIUrl":"https://doi.org/10.2478/eko-2022-0006","url":null,"abstract":"Abstract Pollinator richness, abundance and visitation frequency may be affected by the abundance of floral resources and abiotic factors, influencing plant reproductive success. We analysed whether the diversity, abundance and frequency of butterfly visitation on Lantana camara vary across the year in a tropical urban landscape and whether this variation in butterfly community influences plant’s reproductive success. A two-period survey, referred to here as rainier and drier seasons, was carried out in 12 spatially independent plants. Five pollination treatments were applied: single visit, hand cross-pollination, hand self-pollination, spontaneous self-pollination and open pollination (control). A total of 15,749 flowers were used for fruit production analysis. Butterfly richness, abundance and the reproductive success of L. camara increased in the drier season. Open pollination was ninefold more reproductively successful during the drier season. Fruit production of hand cross-pollinated plants was threefold higher than open-pollinated plants during the rainier season. No significant difference was found between these treatments in the drier season, attesting the highest abundance of pollination during this period. We provide evidence that changes in the pollinator community affect fruit production. The increase in pollinator diversity allows different visitors to pollinate the plant, increasing fruit set through functional complementarity. This effort establishes baseline data of plant–pollinator interactions for further long-term investigations across different weather seasons. The understanding of L. camara and butterflies’ synergism will support conservation measures of pollinator populations.","PeriodicalId":53683,"journal":{"name":"Ekologia Bratislava","volume":"36 1","pages":"46 - 56"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69199569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Water Quality and Zooplankton Assessment of Iyiakwu River, Southeast Nigeria 尼日利亚东南部Iyiakwu河水质及浮游动物评价

Ekologia Bratislava Pub Date : 2022-03-01 DOI: 10.2478/eko-2022-0002

Emeka Donald Anyanwu, Chetachi Jane Orjikwe, Precious Oluchi Chinasa

{"title":"Water Quality and Zooplankton Assessment of Iyiakwu River, Southeast Nigeria","authors":"Emeka Donald Anyanwu, Chetachi Jane Orjikwe, Precious Oluchi Chinasa","doi":"10.2478/eko-2022-0002","DOIUrl":"https://doi.org/10.2478/eko-2022-0002","url":null,"abstract":"Abstract Water quality and zooplankton assessment of a rural river in Southeast Nigeria was carried out between May 2019 and October 2019 in three stations in relation to anthropogenic activities. The major anthropogenic activity in the river was indiscriminate sand mining. The water samples were collected and analyzed using standard sampling and analytical procedures while zooplankton samples were collected using filtration method. pH and dissolved oxygen values were lower than acceptable limits while some of the biochemical oxygen demand values exceeded the acceptable limit. A total of 447 individuals from 25 zooplankton taxa and three major taxonomic groups were recorded. Copepoda was the dominant group (158 individuals/L), followed by Rotifera (147 individuals/L) and Cladocera (142 individuals/L). Spatially, station 1 had the highest abundance (159 individuals/L), followed by station 3 (152 individuals/L) and station 2 (136 individuals/L). The biodiversity indices (Shannon–Weiner and Margalef) were low while Evenness was high when compared with their respective ranges. This study has shown that the combined effects of season, sand mining and other activities have not adversely affected the water quality and zooplankton community. However, the community structure of the zooplankton groups gave an indication of a moderately polluted environment; attributable to the effects of season and human activities in the watershed. Sand mining is a major activity in the river and needs to be regulated to forestall any adverse effect on the water quality and biota in future as observed elsewhere.","PeriodicalId":53683,"journal":{"name":"Ekologia Bratislava","volume":"41 1","pages":"9 - 16"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42670598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Temporal Dynamics of Soil Invertebrate Communities in a Vineyard Under Treatment with Pesticides 农药处理下葡萄园土壤无脊椎动物群落的时间动态

Ekologia Bratislava Pub Date : 2022-03-01 DOI: 10.2478/eko-2022-0004

Lynda Oultaf, Fatiha Metna Ali Ahmed, Djamila Sadoudi Ali Ahmed, Djaffer Dib

{"title":"Temporal Dynamics of Soil Invertebrate Communities in a Vineyard Under Treatment with Pesticides","authors":"Lynda Oultaf, Fatiha Metna Ali Ahmed, Djamila Sadoudi Ali Ahmed, Djaffer Dib","doi":"10.2478/eko-2022-0004","DOIUrl":"https://doi.org/10.2478/eko-2022-0004","url":null,"abstract":"Abstract Phytosanitary treatments with pesticides are widely used to control pests and diseases in vineyards. An important part of the dispersed pesticide reaches the soil, affecting the fauna, producing quantitative and qualitative changes in the edaphic population’s structure and physiological activities. This study aims to evaluate the temporal dynamics of the soil macro and mesofauna through different pesticide treatment periods, where fungicides are the dominant pest control agent. A field experiment was carried out in Boumerdes, a specific viticultural region in Algeria. Soil samples were taken during three periods, before, during, and after treatment with pesticides, using the quadrat method at three soil depths. During these three periods, the soil macro and mesofauna were observed and compared. The results showed significant differences in the composition of invertebrate communities that tended to disappear during pesticide application. The structure and diversity of 11 invertebrate classes, including Collembola, changed along the treatment gradient. The effects of sampling periods on occurrence, abundance, and taxon richness were consistently negative. These indices were significantly lower after pesticide application. Therefore, we can suppose that climatic factors and pesticide treatements are the main factors affecting the activity and density of all classes of invertebrates, but these effects vary between the functional groups of soil biota.","PeriodicalId":53683,"journal":{"name":"Ekologia Bratislava","volume":"41 1","pages":"26 - 34"},"PeriodicalIF":0.0,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45609260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phenology and Diurnal Behaviour of Ruddy Shelduck Tadorna ferruginea at Oglat Eddaira (Ain Ben Khlil) Wetland, Southwest of Algeria 阿尔及利亚西南部Oglat Eddaira (Ain Ben Khlil)湿地赤鸭(Tadorna ferruginea)物候和日行为

Ekologia Bratislava Pub Date : 2022-03-01 DOI: 10.2478/eko-2022-0008

A. Benaradj, N. Charchar, Hafida Boucherit, M. Ouakid, M. Houhamdi

引用次数: 0