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High frequency of polyandry in a lek mating system
The adaptive significance of polyandry by female birds in the absence of direct benefits remains unclear. We determined the frequencies of polyandrous mating and multiple paternity in the ruff, aExpand
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Scots pine responses to CO2 enrichment--I. Ectomycorrhizal fungi and soil fauna.
Ectomycorrhizal Scots pine seedlings were grown in unfertilized forest soil at ambient and double (ca 700 ppm) atmospheric concentrations of CO2. The biomass of seedlings and fungal biomass both inExpand
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Spring bryophytes in forested landscapes: Land use effects on bryophyte species richness, community structure and persistence
Many freshwater ecosystems face severe threats from anthropogenic disturbances, yet little is known about the degree to which their biotic communities have been degraded by human activities. WeExpand
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Enchytraeid and nematode numbers in urban, polluted Scots pine (Pinus sylvestris) stands in relation to other soil biological parameters
SummaryWe examined the number of enchytraeids and nematodes in the mor humus layer of polluted Scots pine (Pinus sylvestris L.) stands, located on a sulphur gradient from 1.2 to 2.8 mg g-1 in morExpand
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Bill patterns of the Whooper Swan in Finland during autumn migration
Bill patterns of Whooper Swans in Finland differ from those observed in Great Britain and Japan, the proportion of yellow being higher than in Britain and lower than in Japan. This supports the ideaExpand
Whooper Swan Cygnus cygnus egg production in different nesting habitats in Finland
A total of 112 Whooper Swan nests with eggs were examined in Finland. Of these 40 were on the fens (mobile pairs) and 72 on ponds or lakes with rich vegetation (sedentary pairs). The clutch size ofExpand
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