Socijalna Ekologija最新文献_第7页

Heracleum sosnowskyi (Apiaceae) seed productivity and establishment in different habitats of central Lithuania 立陶宛中部不同生境的凤头鹤种子产量及其建立

Socijalna Ekologija Pub Date : 2014-01-31 DOI: 10.6001/EKOLOGIJA.V59I3.2795

L. Baležentienė, A. Stankevičienė, V. Snieškienė

{"title":"Heracleum sosnowskyi (Apiaceae) seed productivity and establishment in different habitats of central Lithuania","authors":"L. Baležentienė, A. Stankevičienė, V. Snieškienė","doi":"10.6001/EKOLOGIJA.V59I3.2795","DOIUrl":"https://doi.org/10.6001/EKOLOGIJA.V59I3.2795","url":null,"abstract":"A dangerous invader Heracleum sosnowskyi successfully spreads along roads, riverbanks and has naturalized in Lithuanian habitats and plant communities. It out-competes native species, thus changing ecosystems diversity, pushing autochthone species from native habitats, decreasing biodiversity and transforming landscape. This paper aims to evaluate H. sosnowskyi spread and establishment on habitat scale in Lithuania. Data on abundance, spatial distribution and contribution of H. sosnowskyi to plant biodiversity were collected from natural and anthropogenic habitats. Another objective was to evaluate the speed of spread in an infected landscape. Local assessments of the abundance of H. sosnowskyi by estimating variables of spatial penetrating and establishment in native plant communities on an individual block scale were carried out. Four population types with different density and coverage of species individuals were found. Species abundance was structured according to the distance from highway and significantly correlated (r = 0.7) with native plant community type. This species finds opportunities for colonization and reproduction resulting in decrease of natural diversity.","PeriodicalId":35175,"journal":{"name":"Socijalna Ekologija","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2014-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87229246","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: 17

Pagerbti iškilūs gyvosios gamtos tyrėjai

Socijalna Ekologija Pub Date : 2014-01-31 DOI: 10.6001/EKOLOGIJA.V59I3.2797

Algimantas Jakimavičius, Vincas Būda

引用次数: 0

Is Chondrula tridens (Müller, 1774) an invasive snail species in Lithuania? 三叉戟Chondrula tridens (m<s:1> ller, 1774)是立陶宛的一种入侵蜗牛吗?

Socijalna Ekologija Pub Date : 2013-10-15 DOI: 10.6001/EKOLOGIJA.V59I2.2714

V. Kuznecova, G. Skujienė

{"title":"Is Chondrula tridens (Müller, 1774) an invasive snail species in Lithuania?","authors":"V. Kuznecova, G. Skujienė","doi":"10.6001/EKOLOGIJA.V59I2.2714","DOIUrl":"https://doi.org/10.6001/EKOLOGIJA.V59I2.2714","url":null,"abstract":"The aim of the present paper is to answer the question whether the species is invasive or not and describe the studied peculiarities of the Lithuanian population of the species: 1) distribution pattern; 2) relation to vegetation; 3) land snails’ community composition in the studied sites.\u0000 All literature data about the distribution of this species in Lithuania is reviewed. Research was made in 17 sites in August of 2010, 2011 and 2012. New data on four sites of Chondrula tridens (Muller, 1774) by the railway line Kabeliai–Visaginas are given. The results showed that the species is rare, and has fragmented distribution related to urbophytocenoses, in the vegetation from class Festuco-Brometea Br.-Bl. et Tx. 43 and its natural alliances, that are really relict because vegetation belongs to steppe-flora of Holocene. There is a possibility that C. tridens (Muller, 1774) could have inhabited Lithuania in Holocene. On the whole 30 species were determined. Spearman Rank Order Correlations test showed that the species has a weak significant negative correlation (r = –0.3) with Pupilla muscorum (Linnaeus, 1758) and slightly more positive correlation (r = 0.4) with Nesovitrea hammonis (Strom, 1765), Euomphalia strigella (Draparnaud, 1805) and Helix pomatia Linnaeus, 1758. The fact that H. pomatia Linnaeus, 1758 is an introduced species to Lithuania and C. tridens (Muller, 1774) was found by the railway proves that species distribution has an anthropogenic character, i. e. is related to human activities.\u0000 We can conclude that the origin of C. tridens (Muller, 1774) in Lithuania is unclear but there is no threat of its invasion.","PeriodicalId":35175,"journal":{"name":"Socijalna Ekologija","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86221068","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

Danguolei Irinai Raklevičienei atminti (1951–2013)

Socijalna Ekologija Pub Date : 2013-10-15 DOI: 10.6001/EKOLOGIJA.V59I2.2716

Danguolė Švegždienė, A. Ričkienė

引用次数: 0

Response of wheat to mineral nitrogen fertilizer and biofertilizer (Azotobacter sp. and Azospirillum sp.) inoculation under different levels of weed interference 不同杂草干扰水平下小麦对矿质氮肥和生物肥料(固氮菌和氮螺旋菌)接种的响应

Socijalna Ekologija Pub Date : 2013-10-15 DOI: 10.6001/EKOLOGIJA.V59I2.2711

A. Namvar, Teymur Khandan

{"title":"Response of wheat to mineral nitrogen fertilizer and biofertilizer (Azotobacter sp. and Azospirillum sp.) inoculation under different levels of weed interference","authors":"A. Namvar, Teymur Khandan","doi":"10.6001/EKOLOGIJA.V59I2.2711","DOIUrl":"https://doi.org/10.6001/EKOLOGIJA.V59I2.2711","url":null,"abstract":"It is important to develop integrated fertilization strategies for crop production that enhance the competitive ability of the crop, minimize weed competition, and reduce the risk of nonpoint source pollution from nitrogen. In order to study the effects of mineral nitrogen fertilization and biofertilizer inoculation on grain yield, yield components and protein content of wheat (Triticum aestivum L.) under different levels of weed interference, a field experiment in Factorial scheme based on Randomized Complete Block design was conducted in three replications. Experimental factors were: (i) Four levels of chemical nitrogen fertilizer (0, 100, 150 and 200 kg N ha–1), (ii) Two levels of biofertilizer (with and without inoculation) containing Azotobacter sp. and Azospirillum sp. and (iii) Two levels of weed interference (weedy check and weed free). Wheat yield, yield components and protein content of grains had a strong association with the N fertilization, biofertilizer inoculation and weed interference. Higher rates of N fertilization and biofertilizer (Azotobacter sp. and Azospirillum sp.) inoculation increased plant height, spike number per unit of area, grains number per spike, 1 000-grains weight, grain yield, biological yield and grain protein content while weeds interference decreased significantly all these traits except plant height. Application of 150 kg N ha–1 was statistically in par with 200 kg N ha–1 in the most of the studied traits. Moreover, our results showed that manual hoeing prevents weeds from being a limiting factor for crop productivity in wheat. It seems that moderate N rate (about 150 kg N ha–1) can be beneficial to improve growth, development and total yield of inoculated wheat. Thus it is suggested to use a combination of organic and inorganic fertilizers to achieve the highest yield without negative effect on grain quality that will lead to environmental conservation.","PeriodicalId":35175,"journal":{"name":"Socijalna Ekologija","volume":"9 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72485337","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: 47

Effects of grassland management on plant communities 草地管理对植物群落的影响

Socijalna Ekologija Pub Date : 2013-10-15 DOI: 10.6001/EKOLOGIJA.V59I2.2713

G. Ignatavicius, S. Sinkevičius, A. Ložytė

{"title":"Effects of grassland management on plant communities","authors":"G. Ignatavicius, S. Sinkevičius, A. Ložytė","doi":"10.6001/EKOLOGIJA.V59I2.2713","DOIUrl":"https://doi.org/10.6001/EKOLOGIJA.V59I2.2713","url":null,"abstract":"Grassland is an important component of agrarian landscape, providing a wide range of ecological, economic and social goods and services necessary to support life. They provide habitat for numerous plants and animals, filter sediment and pollutants before they reach our freshwater sources, increase water infiltration, prevent soil erosion, remove and store greenhouse gases, etc. Plant communities are the main elements of grassland ecosystems. The conditions of plant communities and species composition reflect the ecological conditions of the habitat and are an important bioindicator. Grassland plants have the amount requirements for ecological factors which are most suitable to them and optimal to the growth and development, however, economic activity carried out in grasslands may negatively affect the relation of ecological conditions and plants. Long-term changes of the conditions of a habitat, which are determined by various ecological factors, make an impact on the condition of plants and their competitiveness; thus species composition of communities also changes. Especially marked influence on the formation of grassland communities is made by anthropogenic factors, i.e. human economic activities (fire, drainage, fertilization, creation of sown grasslands, haymaking, grazing, or, contrariwise, abandonment). A review on the impact of anthropogenic activities on grassland plant communities is presented.","PeriodicalId":35175,"journal":{"name":"Socijalna Ekologija","volume":"133 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74277355","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: 11

Biological research in the vicinity of Belarusian Antarctic Expedition’s Camp “Vechernyaya Mountain”, the Cosmonaut Sea (East Antarctica) 航天员海(东南极洲)白俄罗斯南极考察队“Vechernyaya山”营地附近的生物研究

Socijalna Ekologija Pub Date : 2013-10-15 DOI: 10.6001/EKOLOGIJA.V59I2.2715

U. Giginyak, O. Borodin

引用次数: 1

The first record of the copepod Lernanthropus corniger Yamaguti, 1954 parasitizing two carangid fishes in northwest of the Arab Gulf, Iraq 1954年，伊拉克阿拉伯湾西北部，桡足类Lernanthropus corniger Yamaguti首次记录寄生在两条carangid鱼身上

Socijalna Ekologija Pub Date : 2013-10-15 DOI: 10.6001/EKOLOGIJA.V59I2.2712

K. Al-Niaeem, S. Al-Azizz, Fatimah H. Al-Ataby

引用次数: 2

The effect of biojodis on winter wheat and spring barley organic seed germination and contamination with fungi 生物制剂对冬小麦和大麦有机种子萌发及真菌污染的影响

Socijalna Ekologija Pub Date : 2013-10-15 DOI: 10.6001/EKOLOGIJA.V59I2.2710

J. Pekarskas, A. Krasauskas, J. Sinkevičienė, D. Šileikienė

{"title":"The effect of biojodis on winter wheat and spring barley organic seed germination and contamination with fungi","authors":"J. Pekarskas, A. Krasauskas, J. Sinkevičienė, D. Šileikienė","doi":"10.6001/EKOLOGIJA.V59I2.2710","DOIUrl":"https://doi.org/10.6001/EKOLOGIJA.V59I2.2710","url":null,"abstract":"This study analyses the effect of biological product biojodis and biojodis with sodium benzoate, which was used as a means to stop fermentation in biological product on germination energy and germination of organic winter wheat and spring barley seeds and contamination with fungi. It was found that biojodis and biojodis with sodium benzoate essentially increased germination energy and germination of organic winter wheat seeds compared to untreated seeds. No essential differences were observed on germination energy and germination of seeds treated with both products. Treating spring barley seeds with biojodis resulted in essential increase in value of their germination and productivity compared with seeds treated with biojodis with sodium benzoate. Treating seeds with a rate 3 l t–1 increased germination value compared to treatment with a rate of 2 l he–1. Treating seeds with both products at a rate of 3 l he–1 resulted in an essential increase in germination compared to untreated seeds and seeds treated with chemical seed treater. Treating organic winter wheat and spring barley seeds with biojodis and biojodis with sodium benzoate essentially reduced seed contamination with fungi compared to untreated seeds; however, it was markedly higher than contamination of seeds treated with chemical seed treatment maxim star. Seed contamination with fungi was more efficiently reduced by biojodis than biojodis with sodium benzoate. Greater rates of biological products were more effective as smaller rates.","PeriodicalId":35175,"journal":{"name":"Socijalna Ekologija","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80449854","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

Pranciškus Baltrus Šivickis – filming fancier

Socijalna Ekologija Pub Date : 2013-08-13 DOI: 10.6001/EKOLOGIJA.V59I1.2677

L. Petrauskienė

{"title":"Pranciškus Baltrus Šivickis – filming fancier","authors":"L. Petrauskienė","doi":"10.6001/EKOLOGIJA.V59I1.2677","DOIUrl":"https://doi.org/10.6001/EKOLOGIJA.V59I1.2677","url":null,"abstract":"The article contains a survey of amateur documentary films covering the time frame 1928–1935 produced by the famous Lithuanian biologist P. B. Sivickis and a description of his recording camera “Filmo”; photos of the camera and frames from the films are included. P. B. Sivickis filmed Manila, the capital of Philippines, professors from Philippines University seeing him off to Lithuania, sights on the cruise from Philippines to Europe, West European cities, Lithuanian cities and localities, and famous Lithuanian people. Many filmed persons have been identified. They are famous Lithuanian scientists, professors of Vytautas Magnus University – chemist and politician Jonas Simkus, philosopher Stasys Salkauskis, hydrologist Steponas Kolupaila, geophysicist Kazys Sleževicius, and P. B. Sivickis himself, his students, future researchers and teachers – Juozas Maniukas, Teklė Kiselytė, K. Jasiukėnaitė, S. Goldmanaitė, Irena Babuskinaitė, Natalija Kristijanovaitė (later Linkevicienė), artists – Antanas Žmuidzinavicius with his wife and daughter, vocalist Antanas Sodeika with his family, family of visiting Italian singing-master Victorio Marini, and writer Petras Cvirka, political and public figures – lawyer Mykolas Sleževicius with his family, attorney Mecys Mackevicius, and Emilija Putvinskienė with her family. The footage also includes films of Lithuanian localities – Kaunas, Palanga, Kretinga, Klaipėda, Sventoji, Siauliai, Dotnuva, Graužikai estate, Žuvintas Lake, Plungė stud farm, etc. including means of transport of those times the most interesting of which is “konkė” (horse-drawn streetcar) captured in the Laisvės Avenue in Kaunas. Though some of the films are of poor quality they nevertheless are valuable from the historical point of view. There are unique shots of philosopher S. Salkauskis (in the Soviet years, the filmed material about him was purposely destroyed) and three short episodes with P. B. Sivickis himself (the only filmed material about him).","PeriodicalId":35175,"journal":{"name":"Socijalna Ekologija","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2013-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82367820","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