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Forests of mountain birch (Betula pubescens subsp. tortuosa [B. tortuosa]) in the lower parts of the Abisko valley, northern Sweden, and in the Finnma...
Read morePopulations were collected from twelve sites in Switzerland and Italy. Tetraploids occurred in grassland at high altitudes but in woodlands down to 11...
Read moreDuring the winter 1963-64 the North African synthetic variety, SynII, showed a greater relative growth rate than the British S170. Of two north temper...
Read moreAn anholocyclic clone of Rhopalosiphum padi was reared on leaves of barley seedlings at 20°C in LD 16:8. First-instar nymphs and newly moulted, pre-re...
Read morePatterns of leaf expansion, under various light and temperature régimes, were studied in races of L. perenne and D. glomerata representing the climati...
Read moreLeaf expansion was investigated in 10 ecotypes of Lolium perenne and 7 of Dactylis glomerata. Seasonal sowings revealed a regular cline in relative ra...
Read moreThe effects of temp. on seed dormancy and germination were studied in 11 populations of tetraploid F. pratensis var. apennina from the Italian Alps an...
Read moreGeneralist predators such as carabid and cantharid beetles form an important component within natural enemy communities in arable land. Usually, preda...
Read moreClimate change is impacting the composition and functioning of virtually every ecosystem on Earth, and disrupting the productivity of exploited ones. ...
Read moreClimate change is an additional stressor in a complex suite of threats facing freshwater biodiversity, particularly for cold-water fishes. Research ad...
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