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1. In vertebrate population estimation, converting faecal density into animal density requires information on the faecal production rate, decay rate a...Read more
Effects of burning and turf-cutting treatments on the productivity of Calluna vulgaris heathlands were studied for a climatologically dry site (Strabr...Read more
Sex-based differences in physiology, behaviour and demography commonly result in differences in disease prevalence. However, sex differences in preval...Read more
Harvesting of large mammals is usually not random, and directional selection has been identified as the main cause of rapid evolution. However, select...Read more
Reinvasion pressure is the rate of new exotic recruitment following mature exotic removal and it can vary broadly among similarly invaded habitats. Re...Read more
Methods are described for the analysis of survival data. The re-analysis of survival data for wild populations of 11 tropical species of mosquitoes re...Read more
Bird numbers were estimated on areas adjacent to conifer plantations at 62 sites, each of 640 ha, in three areas of northern Scotland. The results var...Read more
Methods used to control canids may differ in their relative effectiveness and how they 'sample' age and sex classes. However, there is little informat...Read more
In grazing trials at Hurley in Mar.-Oct. 1984, mixed Trifolium repens cv. Huia/Lolium perenne cv. S23 swards were continuously grazed by sheep to main...Read more
Factors which encouraged the establishment of populations of Senecio aquaticus in agricultural grassland in Orkney included (1) the presence of water ...Read more