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A computer model was developed simulating the mating behaviour and population increase of adults of Spodoptera littoralis (Boisd.) in an isolated grou...
Read moreDeterministic models predict that susceptible-infective-susceptible (SIS) disease, where there is no immunity to reinfection following recovery, will ...
Read moreSeveral methods of measuring biodiversity in development-offset trades exist. However, there is little consensus on which biodiversity metrics should ...
Read moreIn 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...
Read moreIn investigations on Merodon equestris (F.) infesting daffodils in southern England in 1968-71, daily estimates of adult populations were made using a...
Read moreSee also W.A. 20, 2439 and 2892. Experimental simulation of the theoretical effects of ploughing, both to different depths, and at different times of ...
Read moreThis study provides details of the latest survey on Beaver population carried out from late 2020 to early 2021 in areas that encompassed all the river...
Read moreSampling of earthworm populations during 5- and 15-yr-old cropping phases and in 5-, 10- and 15-yr-old fallow phases of shifting agriculture at Shillo...
Read moreA simulation model is described which demonstrates the role of parasitic Hymenoptera in influencing the numbers of the aphid Sitobion avenae on cereal...
Read moreSparrowhawks (Accipiter nisus) found dead in eastern England showed a significant reduction in HEOD (organochlorine pesticide residues derived from al...
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