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1. Ensuring that inferences from biological monitoring are reliable requires a level of sampling effort that is commensurate with programmatic objecti...
Read moreThree surveys were conducted in barley or other cereal crops in Hampshire, UK, during 1988 and 1989. In the first survey (of a spring barley crop), th...
Read moreIn many biodiversity surveys, a small proportion of species require a disproportionate amount of a researcher's time and effort to detect or identify....
Read moreInvasive species threaten biodiversity, and their eradication is desirable whenever possible. Deciding whether an invasive species has been successful...
Read moreLine transect survey techniques have been used to estimate population density for a variety of mammal species in tropical forests. This paper investig...
Read moreThis paper presents a survey of sites thought to support the EC Habitats Directive Annex 1 habitats 'Alkaline Fen' and to a lesser extent 'Transition ...
Read moreA study was conducted during 1990-96 to evaluate the reliability of aerial surveys to monitor trends in the breeding population density of ptarmigan L...
Read moreSpecies richness is the most widely used biodiversity metric, but cannot be observed directly as, typically, some species are overlooked. Imperfect de...
Read moreThis survey examined health of beech (Fagus sylvatica) trees at 72 survey sites in southern Britain. Tree health was assessed using crown thinness, cr...
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