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Riparian trees regulate aquatic ecosystem processes, such as inputs of light, organic matter and nutrients, that can be altered dramatically when thes...
Read moreSurveys of the weed flora in Danish arable fields were conducted during 1967-70 and 1987-89. Frequencies of 67 common weed species in spring barley, s...
Read moreNumerous studies describe thresholds at which transitions between alternate ecosystem states occur but few quantitatively delimit these conditions and...
Read moreEvaluation of the success of biological control agents is essential to improve the efficiency and safety of future programmes. This study assessed the...
Read moreHybridization seems possible for many crop species after pollen transfer from crops to wild relatives in the surrounding vegetation. Subsequent introg...
Read moreIn Panama, abandoned agricultural lands that supported tropical rain forest are invaded by the exotic invasive grass Saccharum spontaneum, which precl...
Read moreThe ability of animals to move through a landscape is a fundamental determinant of population persistence in fragmented habitats. This movement can be...
Read moreIncreasing sea temperatures are predicted to decrease body size of marine ectotherms based on the temperature size rule. This will impact fisheries yi...
Read moreRising human activity in the Arctic, combined with a warming climate, increases the probability of introduction and establishment of alien plant speci...
Read moreGrowing industrial and consumer demands are negatively affecting fish stocks, which are increasingly extracted above sustainable levels. Successful ma...
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