Proceedings of the Estonian Academy of Sciences. Biology. Ecology最新文献_第3页

New records of aphids (Homoptera, Aphidodea) from Estonia 标题爱沙尼亚蚜虫新记录(同翅目，蚜虫科)

Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2002.2.03

T. Tiido

引用次数: 3

TAXONOMIC PROBLEMS IN THE GENUS Polyarthra FROM LAKE PEIPSI 鄱阳湖多节属植物的分类学问题

Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2000.1.04

T. Virro

引用次数: 0

DIFFUSE ATTENUATION COEFFICIENT IN SOME ESTONIAN AND FINNISH LAKES 一些爱沙尼亚和芬兰湖泊的扩散衰减系数

Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.1999.4.02

A. Reinart, A. Herlevi

引用次数: 21

A THREE-PARAMETER TROPHIC STATE INDEX FOR SMALL LAKES 小湖泊三参数营养状态指数

Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.1997.1/2.03

A. Milius, H. Starast

引用次数: 1

Water level and water temperature as factors determining phytoplankton biomass and nutrient content in Lake Peipsi 水位和水温对沛斯湖浮游植物生物量和养分含量的影响

Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2005.1.01

M. Haldna, K. Kangur, R. Laugaste, A. Milius, T. Möls

引用次数: 10

State-of-the-art: the use of Enchytraeidae (Oligochaeta) as test and indicator organisms in standardized ecotoxicological tests 最先进的技术:在标准化生态毒理学试验中，使用浒苔科(寡毛纲)作为试验生物和指示生物

Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2005.4.12

S. Jänsch, T. Moser, J. Römbke

引用次数: 1

Nest-tree and nest-stand characteristics of forest-dwelling raptors in east-central Estonia: implications for forest management and conservation 爱沙尼亚中东部森林栖息猛禽的巢树和巢林特征:对森林管理和保护的影响

Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2006.1.03

A. Lõhmus

{"title":"Nest-tree and nest-stand characteristics of forest-dwelling raptors in east-central Estonia: implications for forest management and conservation","authors":"A. Lõhmus","doi":"10.3176/biol.ecol.2006.1.03","DOIUrl":"https://doi.org/10.3176/biol.ecol.2006.1.03","url":null,"abstract":"I studied 423 nests of six raptor species in east-central Estonia to (1) distinguish the essential features of the nest sites, (2) link the nest-tree and nest-stand characteristics, and (3) explore whether the availability of potential nest trees and stands limits raptor populations in managed forest landscapes. Aquila pomarina was the only species having distinct preferences for a few site types, while Accipiter gentilis and Falco subbuteo selected stands according to composition rather than site type. Coniferous trees, particularly spruce, were greatly favoured for nest-building by all species, probably due to better protective cover. Size of the nest tree was more important than its age; though on poor soils, nest trees were both older and smaller. A. gentilis, A. pomarina, and Buteo buteo appeared to be most prone to the lack of potential nest trees in managed forests, e.g. stands < 80 years old were generally inhabitable only if these contained older trees. Green-tree retention could greatly add nest sites for these raptors in managed forests. However, nest-site selectivity did not correlate with the population sizes of the six species, suggesting that nest-sites were not the main limiting factor for them.","PeriodicalId":250336,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Biology. Ecology","volume":"27 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":"133253299","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: 42

Benthic release of phosphorus and its relation to environmental conditions in the estuarial Gulf of Finland, Baltic Sea, in the early 2000s 21世纪初波罗的海芬兰湾河口底栖生物磷释放及其与环境条件的关系

Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2003.3.02

P. Kangas, M. Kiirikki, I. Kotta, J. Kotta, A. Laine, J. Lehtoranta, A. Mäkinen, P. Moskalenko, H. Peltonen, M. Perttilä, H. Pitkänen

引用次数: 20

Spatial variability of diatoms, subfossil macrophytes, and OC/N values in surface sediments of Lake Väike Juusa (southern Estonia) 爱沙尼亚南部Väike Juusa湖表层沉积物中硅藻、亚化石大型植物和OC/N的空间变异性

Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.2004.3.01

J. Punning, Liisa Puusepp, T. Koff

引用次数: 10

STRIKING INCREASE IN INCIDENCE OF CANCER OF THE ORAL CAVITY AND PHARYNX IN ESTONIA 1968–1992; pp. 261–272 1968-1992年爱沙尼亚口腔癌和咽喉癌发病率显著增加;261 - 272页

Proceedings of the Estonian Academy of Sciences. Biology. Ecology Pub Date : 1900-01-01 DOI: 10.3176/biol.ecol.1997.4.06

A. Baburin, J. Coebergh, M. Rahu, K. Gornoi

引用次数: 0