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An 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 moreFor 5 plantation stands (age 7-56 yr) in the Kalimpong forest district in the hills of Darjeeling, data are presented on the age transition of nodules...
Read moreA mechanistic, physiological model has been developed to describe the yearly growth cycle of bracken, and it has been adapted to run using nationally ...
Read moreThe growth of S. molesta (see WA 23, 2847) was analysed under a range of artificial and natural environmental conditions. Growth was exponential. The ...
Read moreAttempts to conserve threatened species in fragmented landscapes are often challenging because factors such as habitat loss, habitat degradation and d...
Read moreGenetic diversity is one of the three main levels of biodiversity recognised in the Convention on Biological Diversity (CBD). Fundamental for species ...
Read moreSpecies distribution models (SDM) are increasingly applied as predictive tools for purposes of conservation planning and management. Such models rely ...
Read moreThis think-piece builds on previous work undertaken for Natural England and addresses the range of practical issues involved in creating: "a large and...
Read moreData on changes in numbers of 31 species of butterfly in the UK in 1976-86 were used to investigate associations between relative abundance and weathe...
Read moreSmallholder farmers in sub-Saharan Africa face a constant challenge: to choose between many, often competing, social, economic and environmental objec...
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