Konevets Island (Leningrad Region, Russia) – a historical refuge of lichen diversity in Lake Ladoga
نویسندگان
چکیده
منابع مشابه
The present state of Lake Ladoga, Russia — a review
Until the early 1960s, Lake Ladoga was oligotrophic and characterized by good water quality, but within the past 20–30 years, as a result of human impact, the ecological state seems to have deteriorated. Especially since the 1970s, its trophic state has changed to mesotrophic, with elevated nutrient concentrations and decreased transparency. Conditions at some of the worst polluted sites have a...
متن کاملDistribution of periphytic diatoms in the rivers of the Lake Ladoga basin (Northwestern Russia)
Relationships between distribution of periphytic diatoms and environmental variables in 19 rivers of the Lake Ladoga basin (Northwestern Russia) were examined using gradient analysis. On the basis of geology and river water chemistry, the Lake Ladoga basin could be separated into twomain parts, the northern and the southern sub-basin. The rivers in the northern sub-basin are slightly acidic and...
متن کاملModeling wind-driven circulation in Lake Ladoga
The goal of this paper is to present circulation patterns in Lake Ladoga occurring during episodes of strong wind. Hydrodynamics of episodic events are studied with a three-dimensional barotropic numerical model. Model results are presented for a variety of wind directions and, therefore, can be used for analysis of various biogeochemical data. As an illustration, an analysis of sediment distri...
متن کاملIsland refuge
Wildlife conservation in Turkey does not get a high priority. Yet the country lies in a key location for birds migrating from Asia and Africa to Europe. Wildlife reserves exist but often have worryingly little support. So the development of Lake Kuyucuk in the Kars province of eastern Turkey as a wildlife reserve for thousands of birds of more than two hundred species, while also supporting loc...
متن کاملSpecies diversity and spatial distribution of the summer rotifer assemblages in Lake Ladoga
The rotifer assemblages of Lake Ladoga were studied in samples of the 0–10 m water layer taken at 60 sampling stations in different parts of the lake in August 1994 and 1995. In general, the species composition of the pelagial assemblages was rather similar throughout the lake. However, the dominant species differed markedly between the northern part, the central area and the Volkhov Bay. The h...
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ژورنال
عنوان ژورنال: Folia Cryptogamica Estonica
سال: 2018
ISSN: 1736-7786,1406-2070
DOI: 10.12697/fce.2018.55.07