Search

In recent decades, many of the common and widespread butterflies in Britain which do not already occupy the whole of the country have expanded in rang...

The simple disease/host models used to identify the ecological criteria governing the likely relative effectiveness of culling, sterilization and vacc...

Perennial ryegrass, wheat, red clover and lucerne were grown on soil in pots with and without added K; foliage was leached with simulated rain and the...

Measurements were made of CO₂ exchange by sods taken from a Phalaris tuberosa/Trifolium repens temperate grassland to determine their net primary prod...

Seedlings of cocksfoot populations from Norway and Portugal were planted-out 5 cm apart at the cotyledon stage into boxes equipped with partitions to ...

Blocks of onion plants were either caged with honeybee colonies or left uncaged. Although the uncaged plants produced fewer umbels, the weight of seed...

Most of the herbaceous plants sampled from these sites had arbuscular mycorrhizas. Gigaspora gigantea, isolated from anthracite waste, stimulated the ...

The results of the first 4 years of an experiment which has involved frequent applications of ammonium sulfate within a 1-km² tract of nitrogen-poor d...

A computer model is described which predicts monthly growth, senescence, litterfall and standing biomass of ungrazed herbage in seven dwarf shrub-domi...

In recent years, the Normalized Difference Vegetation Index (NDVI) has been used to assess the relationships between habitat quality and animal life-h...