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Parameter uncertainty challenges the use of matrix models because it violates key assumptions underlying elasticity analyses. We have developed a matr...
Read moreMany studies have reported honeybee colony losses in human-dominated landscapes. While bee floral food resources have been drastically reduced over pa...
Read moreAn experiment was carried out in 1978-86 to study the individual and combined simulated grazing effects on C. pallens tussocks of takahe (Notornis man...
Read moreA soil disturbance treatment often results in more annual weed seedlings emerging when conducted in light than when conducted in darkness, suggesting ...
Read moreIn field trials in Silwood Park, Berkshire, UK in 1982-85, wheat cv. Hustler was subjected to no grazing or to several regimes of grazing by rabbits. ...
Read moreCriteria for selecting sites are described and the various sampling, rearing and identification techniques used to investigate field populations of Si...
Read moreGrassland plant community structure and function are dependent on the type, timing, frequency and intensity of disturbance. Grazing systems employing ...
Read moreChanges in the Marais Poitevin wetland, France, are described. The area of grasslands decreased by 50% between 1970 and 1995, principally as a result ...
Read moreThe weed flora of the unsprayed field margins of 19 fields in arable crop rotations was studied in Denmark in 1988-92. The farmer determined the crop ...
Read moreField-grown soyabeans were exposed to 3 levels of SO2 to determine the effects of the exposure upon photosynthesis and stomatal resistance. In plots w...
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