Nitrogen levels are predicted to rise dramatically 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. Plant communities react strongly to increases in soil nitrogen, particularly in northern ecosystems where nitrogen levels are naturally very low. An experiment in northern Canada that began in 1990 has been investigating the effects of long-term nutrient enrichment (fertilizer addition) and release from herbivory (fencing). After 22 years of treatment, plant community composition has been substantially altered in fertilized plots, whereas exclusion of herbivores has had almost no detectable effects. I used this experiment...
Aims: Disentangling direct and indirect effects of global change drivers on plant nitrogen (N) uptak...
Although ecologists have documented the effects of nitrogen enrichment on productivity, diversity an...
1 A field-experiment was used to determine how plant species might retain dominance in an arctic eco...
Nitrogen levels are predicted to rise dramatically in the coming decades as a result of increased de...
Global levels of reactive nitrogen are predicted to rise in the coming decades as a result of increa...
Atmospheric nitrogen deposition poses a serious threat to plant communities globally. Furthermore, ...
The effects of nitrogen (N) deposition have been studied in many ecosystems, and one general pattern...
Nitrogen (N) is a limiting nutrient to plant growth in many ecosystems, and human-caused N enrichmen...
Climate change is predicted to significantly alter ecosystem functioning and species distributions a...
Plant productivity is limited by mineral nutrient availability in many boreal forest ecosystems. Thi...
Relatively little is known about the effects of anthropogenic environmental changes on reproductive ...
Nitrogen-fixing trees are a major potential source of nitrogen into terrestrial ecosystems. The degr...
Human activities such as fossil fuel combustion and deforestation have increased atmospheric concent...
Climate change in the Arctic has profound effects on tundra vegetation, directly through increasing ...
Vast areas of (sub)arctic tundra are dominated by the ericoid dwarf shrub Empetrum hermaphroditum. R...
Aims: Disentangling direct and indirect effects of global change drivers on plant nitrogen (N) uptak...
Although ecologists have documented the effects of nitrogen enrichment on productivity, diversity an...
1 A field-experiment was used to determine how plant species might retain dominance in an arctic eco...
Nitrogen levels are predicted to rise dramatically in the coming decades as a result of increased de...
Global levels of reactive nitrogen are predicted to rise in the coming decades as a result of increa...
Atmospheric nitrogen deposition poses a serious threat to plant communities globally. Furthermore, ...
The effects of nitrogen (N) deposition have been studied in many ecosystems, and one general pattern...
Nitrogen (N) is a limiting nutrient to plant growth in many ecosystems, and human-caused N enrichmen...
Climate change is predicted to significantly alter ecosystem functioning and species distributions a...
Plant productivity is limited by mineral nutrient availability in many boreal forest ecosystems. Thi...
Relatively little is known about the effects of anthropogenic environmental changes on reproductive ...
Nitrogen-fixing trees are a major potential source of nitrogen into terrestrial ecosystems. The degr...
Human activities such as fossil fuel combustion and deforestation have increased atmospheric concent...
Climate change in the Arctic has profound effects on tundra vegetation, directly through increasing ...
Vast areas of (sub)arctic tundra are dominated by the ericoid dwarf shrub Empetrum hermaphroditum. R...
Aims: Disentangling direct and indirect effects of global change drivers on plant nitrogen (N) uptak...
Although ecologists have documented the effects of nitrogen enrichment on productivity, diversity an...
1 A field-experiment was used to determine how plant species might retain dominance in an arctic eco...