The distribution of arable weed seedbanks and the implications for the conservation of endangered species and communities.
The within-field distribution of arable weed seed banks has been studied with particular emphasis being placed on species that are thought to have undergone a decline in recent years. Methods used were a survey of seedlings before herbicide application, and estimation of the soil seed bank from soil cores. Results indicated a concentration of most weed species within the outermost six metres of the field, with a few notable exceptions. These observed distributions have considerable implications for the conservation of endangered species.