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A Littoral Ecosystem Risk Assessment Model (LERAM) is described and evaluated using field data from a previous littoral enclosure study of the effects...
Read moreThe composition and size of the germinable seed populations of undisturbed heathland soils in SE Dorset were compared to those of adjacent farmland wh...
Read moreOrganochlorine levels and shell thickness indices varied little between eggs in the same clutch of Accipiter nisus in the UK, but they varied greatly ...
Read moreHuman trampling drastically reduced the amounts of Poterium sanguisorba, Leontodon hispidus, Trifolium repens and Rhytidiadelphus sguarrosus in chalk ...
Read more2 populations of white clover from acid soil and 2 from calcareous soil were grown in partitioned containers of soil, pH 4.6 and 8.2, to give all comb...
Read moreCommonness and rarity among British butterflies were examined by relating features of biology and ecology to geographical distribution. No single attr...
Read moreThe numbers of Sinapis arvensis plants in 3 permanent quadrats in an arable field were examined over 3 years. Plant size was positively correlated wit...
Read moreSexual reproduction in 9 clones of Eichhornia crassipes from different parts of the world was examined in the glasshouse. Eight of the clones flowered...
Read moreSexual reproduction and natural seed production in Eichhornia crassipes was examined in a total of 19 populations from 2 tropical regions (Lower Amazo...
Read moreSeed longevity and germination in various situations were examined in Rumex crispus and R. obtusifolius. The % germination of both spp. was significan...
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