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A growth study of natural stands of shortleaf pine (Pinus echinata) that was measured 6 times from 1985 to 2014 provided an opportunity to investigate...
Read moreThere have been suggestions that the population dynamics of weeds may show chaotic dynamics, and that therefore it will not be possible to predict the...
Read moreIntensive cropping systems select for a low diversity of weeds tolerant of chemical control, leading to persistent weed-crop competition and declining...
Read moreCorrectly assessing whether rangeland ecosystem services are stable, improving, or degrading is of global importance. Soil aggregate stability (SAS) i...
Read moreBiofuel production from cellulosic feedstocks may increase during the next century. To be sustainable, this production should protect environmental qu...
Read moreDisturbances are frequent events across the Canadian boreal forest and can affect both below- and above-ground ecosystem processes. How disturbances c...
Read moreA variety of abiotic, biotic, human and historic variables related to environmental suitability and propagule pressure determine the distribution of i...
Read moreFertilization with a sewage sludge fertilizer containing 10-6-4 NPK increased the total peak standing crops of salt marsh vegetation, despite the pres...
Read moreThe effects of contrasting management practices on the species composition of tallgrass prairie in Kansas, USA were examined at 2 spatial scales. At t...
Read moreThe following is based largely on the author's sumrnary. Scotch broom (Sara-thamnus scoparius) was introduced from Europe to the Pacific toast of Nort...
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