• Publications
  • Influence
Controlling Eutrophication: Nitrogen and Phosphorus
Improvements in the water quality of many freshwater and most coastal marine ecosystems requires reductions in both nitrogen and phosphorus inputs.
Climate-Driven Ecosystem Succession in the Sahara: The Past 6000 Years
This gradual rather than abrupt termination of the African Humid Period in the eastern Sahara suggests a relatively weak biogeophysical feedback on climate.
Declining oxygen in the global ocean and coastal waters
Improved numerical models of oceanographic processes that control oxygen depletion and the large-scale influence of altered biogeochemical cycles are needed to better predict the magnitude and spatial patterns of deoxygenation in the open ocean, as well as feedbacks to climate.
Hypoxia in the Baltic Sea and basin-scale changes in phosphorus biogeochemistry.
Analysis of data from 1970 to 2000 at the basin scale shows that the estimated volume of water with oxygen was actually at a minimum at the end of the longest so-called stagnation period on record, and addresses the legacy of eutrophication on a basinwide scale.
The Development of the Baltic Sea Basin During the Last 130 ka
During the Eemian interglacial 130–115 ka BP, the hydrology of the Baltic Sea was significantly different from the Holocene. A pathway between the Baltic basin and the Barents Sea through Karelia
Terrestrial ecosystems and the global biogeochemical silica cycle
  • D. Conley
  • Environmental Science, Geography
  • 1 December 2002
Most research on the global Si cycle has focused nearly exclusively on weathering or the oceanic Si cycle and has not explored the complexity of the terrestrial biogeochemical cycle. The global
Return to Neverland: Shifting Baselines Affect Eutrophication Restoration Targets
The implicit assumption of many scientific and regulatory frameworks that ecosystems impacted by human pressures may be reverted to their original condition by suppressing the pressure was tested
High-resolution analyses of an early Holocene climate event may imply decreased solar forcing as an important climate trigger
Early Holocene lacustrine, tree-ring, ice-core, and marine records reveal that the Northern Hemisphere underwent a short cooling event at 10 300 calendar yr B.P. (9100 14 C yr B.P.). The records were
Deoxygenation of the Baltic Sea during the last century
A 10-fold increase of hypoxia in the Baltic Sea is reported and it is shown that this is primarily linked to increased inputs of nutrients from land, although increased respiration from higher temperatures during the last two decades has contributed to worsening oxygen conditions.