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Grainger, Tess Nahanni

The combustion of fossil fuels and associated warmer temperatures are causing a global increase in the availability of soil nutrients such as nitrogen. This will have pronounced effects on plants at northern latitudes that are adapted to low nutrient conditions. An experiment in northern Canada set up in 1990 has investigated the effects of long-term nutrient enrichment (fertilizer addition) and mammalian herbivore exclusion (fencing) on an understory plant community. We used this experiment to assess how 22 years of fertilization has affected investment in sexual reproduction in four herbaceous understory species. We measured reproductive output at the plot level (proportion of plants flowering) for four species...
Categories: Publication; Types: Citation; Tags: M1-Ecosystems
Global levels of reactive nitrogen are predicted to rise in the coming decades as a result of increased deposition from the burning of fossil fuels and the large-scale conversion of nitrogen into a useable form for agriculture. Many plant communities respond strongly to increases in soil nitrogen, particularly in northern ecosystems where nitrogen levels are naturally very low. An experiment in northern Canada that was initiated in 1990 has been investigating the effects of long-term nutrient enrichment (fertilizer added annually) on a boreal forest understory community. We used this experiment to investigate why some species increase in abundance under nutrient enrichment whereas others decline. We focused on four...
Global levels of reactive nitrogen are predicted to rise in the coming decades as a result of increased deposition from the burning of fossil fuels and the large-scale conversion of nitrogen into a useable form for agriculture. Many plant communities respond strongly to increases in soil nitrogen, particularly in northern ecosystems where nitrogen levels are naturally very low. An experiment in northern Canada that was initiated in 1990 has been investigating the effects of long-term nutrient enrichment (fertilizer added annually) on a boreal forest understory community. We used this experiment to investigate why some species increase in abundance under nutrient enrichment whereas others decline. We focused on four...
Categories: Publication; Types: Citation; Tags: M1-Ecosystems
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Global levels of reactive nitrogen are predicted to rise in the coming decades as a result of increased deposition from the burning of fossil fuels and the large-scale conversion of nitrogen into a useable form for agriculture. Many plant communities respond strongly to increases in soil nitrogen, particularly in northern ecosystems where nitrogen levels are naturally very low. An experiment in northern Canada that was initiated in 1990 has been investigating the effects of long-term nutrient enrichment (fertilizer added annually) on a boreal forest understory community. We used this experiment to investigate why some species increase in abundance under nutrient enrichment whereas others decline. We focused on four...
The combustion of fossil fuels and associated warmer temperatures are causing a global increase in the availability of soil nutrients such as nitrogen. This will have pronounced effects on plants at northern latitudes that are adapted to low nutrient conditions. An experiment in northern Canada set up in 1990 has investigated the effects of long-term nutrient enrichment (fertilizer addition) and mammalian herbivore exclusion (fencing) on an understory plant community. We used this experiment to assess how 22 years of fertilization has affected investment in sexual reproduction in four herbaceous understory species. We measured reproductive output at the plot level (proportion of plants flowering) for four species...
Categories: Publication; Types: Citation; Tags: M1-Ecosystems
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