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Proceedings of the Estonian Academy of Sciences. Biology. Ecology最新文献

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Autumn numbers and distribution of the staging greylag goose Anser anser in Estonia in 1990–98; pp. 26–39 1990 - 1998年爱沙尼亚分期灰雁秋季数量及分布26 39页。
Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2003.1.03
T. Kastepõld, A. Leito, E. Mägi, T. Möls
{"title":"Autumn numbers and distribution of the staging greylag goose Anser anser in Estonia in 1990–98; pp. 26–39","authors":"T. Kastepõld, A. Leito, E. Mägi, T. Möls","doi":"10.3176/biol.ecol.2003.1.03","DOIUrl":"https://doi.org/10.3176/biol.ecol.2003.1.03","url":null,"abstract":"","PeriodicalId":250336,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Biology. Ecology","volume":"355 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122803760","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
Fridericia eiseni sp. n., a new enchytraeid species close to Fridericia ratzeli (Eisen, 1872)
Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2005.4.04
K. Dózsa-Farkas
{"title":"Fridericia eiseni sp. n., a new enchytraeid species close to Fridericia ratzeli (Eisen, 1872)","authors":"K. Dózsa-Farkas","doi":"10.3176/biol.ecol.2005.4.04","DOIUrl":"https://doi.org/10.3176/biol.ecol.2005.4.04","url":null,"abstract":"","PeriodicalId":250336,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Biology. Ecology","volume":"97 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114270390","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
STUDY OF THE MULTIVARIATE STRUCTURE OF THE ESTONIAN Alchemilla L. (ROSACEAE) MICROSPECIES: AN EXAMPLE OF THE STRUCTURAL INDICES APPROACH 爱沙尼亚金丹属(蔷薇科)微种的多元结构研究:结构指数方法的一个例子
Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2000.3.05
S. Sepp, T. Nahtman, T. Möls, J. Paal
{"title":"STUDY OF THE MULTIVARIATE STRUCTURE OF THE ESTONIAN Alchemilla L. (ROSACEAE) MICROSPECIES: AN EXAMPLE OF THE STRUCTURAL INDICES APPROACH","authors":"S. Sepp, T. Nahtman, T. Möls, J. Paal","doi":"10.3176/biol.ecol.2000.3.05","DOIUrl":"https://doi.org/10.3176/biol.ecol.2000.3.05","url":null,"abstract":"Study of the multivariate structure of the Estonian Alchemilla L. (Rosaceae) microspecies: an example of the structural indices approach.","PeriodicalId":250336,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Biology. Ecology","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124660938","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: 5
On the mechanism of cellular death under photoexcitation of haematoporphyrin derivative 血卟啉衍生物光激发下细胞死亡机制的研究
Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2003.1.05
V. Chekulayev, L. Chekulayeva, I. Shevchuk
{"title":"On the mechanism of cellular death under photoexcitation of haematoporphyrin derivative","authors":"V. Chekulayev, L. Chekulayeva, I. Shevchuk","doi":"10.3176/biol.ecol.2003.1.05","DOIUrl":"https://doi.org/10.3176/biol.ecol.2003.1.05","url":null,"abstract":"","PeriodicalId":250336,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Biology. Ecology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124009301","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 INFLUENCE OF CURRENTS AND WAVES ON ECOLOGICAL CONDITIONS OF THE VÄINAMERI 水流和波浪对vÄinameri生态条件的影响
Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2001.4.02
Ü. Suursaar, T. Kullas, M. Otsmann
{"title":"THE INFLUENCE OF CURRENTS AND WAVES ON ECOLOGICAL CONDITIONS OF THE VÄINAMERI","authors":"Ü. Suursaar, T. Kullas, M. Otsmann","doi":"10.3176/biol.ecol.2001.4.02","DOIUrl":"https://doi.org/10.3176/biol.ecol.2001.4.02","url":null,"abstract":"Based on field measurements (1993-99) and hydrodynamic modelling the influence of currents on the ecological situation of the Vainameri is analysed and an introductory study on the resuspension is reported. 2D flow charts are presented. The Vainameri is a highly dynamic water body, where the situation is mostly determined by the water exchange processes forced by two major nearby basins (i.e., the Baltic Proper and th e Gulf of Riga) and resuspension events during storms. The hydrophysical and hydrochemical front fluctuates in N-S direction and the local conditions are frequently overrun by these excursions. Resuspension events due to currents (in the straits) and surface waves (in the shallow parts of the Vainameri) affect the study area with high turbidity and cause an about 2-3-fold increase in phosphorus concentrations. On the basis of hydrodynamic behaviour two sub-basins could be defined in the Vainameri. The eastern part has about 85% of the water exchange, lower salinity, and higher nutrient concentrations. In the western section hydrological conditions are more marine and less variable.","PeriodicalId":250336,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Biology. Ecology","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123391734","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: 21
On the distribution and taxonomic limits of Lumbricillus pagenstecheri (Oligochaeta, Enchytraeidae) 少毛纲蛭形虫的分布及分类界限
Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2005.4.05
T. Timm
{"title":"On the distribution and taxonomic limits of Lumbricillus pagenstecheri (Oligochaeta, Enchytraeidae)","authors":"T. Timm","doi":"10.3176/biol.ecol.2005.4.05","DOIUrl":"https://doi.org/10.3176/biol.ecol.2005.4.05","url":null,"abstract":"","PeriodicalId":250336,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Biology. Ecology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124318066","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
DISTRIBUTION OF MYSIDS ON BANK SLOPES IN THE GULF OF RIGA 里加湾沿岸斜坡上蝇蛆的分布
Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2001.1.02
I. Kotta, J. Kotta
{"title":"DISTRIBUTION OF MYSIDS ON BANK SLOPES IN THE GULF OF RIGA","authors":"I. Kotta, J. Kotta","doi":"10.3176/biol.ecol.2001.1.02","DOIUrl":"https://doi.org/10.3176/biol.ecol.2001.1.02","url":null,"abstract":"The abundance and biomass distribution of mysids were estimated on two bank slopes of the Gulf of Riga in 1977-80. The distribution of mysids was aggregated and related to the temperature conditions. Higher densities of mysids coincided with the areas where the thermocline boundaries touched the sea floor. In these biotopes with strong temperature gradients mysids were often observed outside of their natural temperature preferences. Mysis relicta was recorded above the thermocline at 10 oC and Neomysis integer below the thermocline at 2 oC.","PeriodicalId":250336,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Biology. Ecology","volume":"4 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126315764","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: 8
LAKE PEIPSI AND ITS ECOSYSTEM 贝比斯湖及其生态系统
Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2000.1.01
J. Haberman, A. Jaani, A. Kangur, K. Kangur, R. Laugaste, A. Milius, H. Mäemets, E. Pihu
{"title":"LAKE PEIPSI AND ITS ECOSYSTEM","authors":"J. Haberman, A. Jaani, A. Kangur, K. Kangur, R. Laugaste, A. Milius, H. Mäemets, E. Pihu","doi":"10.3176/biol.ecol.2000.1.01","DOIUrl":"https://doi.org/10.3176/biol.ecol.2000.1.01","url":null,"abstract":"","PeriodicalId":250336,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Biology. Ecology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128064474","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: 9
Population stage structure of three congeneric Dryopteris species in Estonia 爱沙尼亚三种同属毛蕨的种群阶段结构
Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2006.1.02
K. Rünk, M. Moora, M. Zobel
{"title":"Population stage structure of three congeneric Dryopteris species in Estonia","authors":"K. Rünk, M. Moora, M. Zobel","doi":"10.3176/biol.ecol.2006.1.02","DOIUrl":"https://doi.org/10.3176/biol.ecol.2006.1.02","url":null,"abstract":"There are three congeneric fern species in Estonia that show similar morphology and ecology, but whose regional distribution is different - Dryopteris carthusiana is common, D. expansa is distributed in scattered localities, and D. dilatata is rare. We studied D. carthusiana, D. dilatata, and D. expansa in localities where all three fern species co-occur in Estonia. Our aim was to compare the population stage structure of the three species and to observe whether their population structure fluctuates differently in different sites in different years. We observed an unfavourable condition of D. expansa in one site (Saare), which we interpreted as a possible result of competitive pressure from bryophytes. Also, we observed a predomination of premature stages of D. dilatata in two sites (Janeda, Ongu), indicating the dynamic status of these populations. Because of a more westerly distribution of this species in Estonia compared to the other two, one may hypothesize that D. dilatata is able to expand its range due to climate warming.","PeriodicalId":250336,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Biology. Ecology","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128161269","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: 12
Vertical structure of horizontal currents and vertical velocities observed off the Estonian coast using a recording Doppler current profiler 用记录式多普勒海流剖面仪观察到的爱沙尼亚海岸外水平海流的垂直结构和垂直速度
Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2005.3.02
lo Suursaar, T. Kullas, M. Otsmann
{"title":"Vertical structure of horizontal currents and vertical velocities observed off the Estonian coast using a recording Doppler current profiler","authors":"lo Suursaar, T. Kullas, M. Otsmann","doi":"10.3176/biol.ecol.2005.3.02","DOIUrl":"https://doi.org/10.3176/biol.ecol.2005.3.02","url":null,"abstract":". The 3D current structure was studied in Muuga and K(cid:252)dema bays using RDCP 600 current profiler data from autumn 2003 and early summer 2004. Altogether 245 hours of flow measurements from up to nine depth layers were obtained. Despite calm weather conditions (average wind speed 3.4 m/s during the three measuring periods), the maximum horizontal current velocity reached 37 cm/s. As all the mooring sites were relatively close to the coast, downwind horizontal transport with relatively small differences over the vertical profile prevailed. The average modula of vertical velocities were between 0.47 and 0.60 cm/s, being 10(cid:150)20 times smaller than the simultaneous horizontal velocities. This may suggest that at least above sloping bottoms and within the upper 10(cid:150)20 m layer, rapid vertical spread of both hydrochemical and hydrobiological properties is hydrodynamically favoured. However, higher than expected measured vertical velocities indicate a disagreement with certain theoretical considerations. The possibility that the particles backscattering the RDCP signals were not neutrally buoyant should be investigated in detail in the future.","PeriodicalId":250336,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Biology. Ecology","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122251628","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
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