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The value of the density dependent term c in the equation M=aLc relating the number of maturing females (M) of Boophilus microplus (Can.) to the numbe...
Read moreYear-to-year variation in the risk of spring frost damage during the 20th century was examined with reference to variation in the date when a fixed th...
Read moreIn addition to other nitrogen sources, nitrogen emissions from agriculture pollute waters and other environmental media, both in Germany and in other ...
Read moreSemi-natural heath vegetation consisting mainly of Deschampsia flexuosa, Holcus mollis, Agrostis canina, Pteridium aquilinum and Chamaenerion angustif...
Read moreAlthough phytophagous insects can vary genetically in host use and exhibit long-range movements, the combined implications of these phenomena for pest...
Read moreCulicoides biting midges (Diptera, Ceratopogonidae) are vectors of arboviruses that cause significant economic and welfare impact. Local-scale spread ...
Read moreYellowhammers (Emberiza citrinella) began to decline on British lowland farmland in the late 1980s and losses are presently 10% per year. This study e...
Read moreThe serpentine tailings from asbestos mines in southeastern Quebec cover 5.5 km2 and are largely devoid of vegetation. The tailings have a high pH, ve...
Read moreLeaf development and stem growth of ash were studied during 1993, in an experimental area installed in a mixed natural broadleaved stand in the state ...
Read moreAs the role of forestry-based options for reducing or mitigating greenhouse gas emissions is debated by policymakers, there is a need to inform the de...
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