Ecological Consequences of Sea-Ice Decline

@article{Post2013EcologicalCO,
  title={Ecological Consequences of Sea-Ice Decline},
  author={Eric Post and Uma S. Bhatt and Cecilia M. Bitz and Jedediah F. Brodie and Tara L Fulton and Mark Hebblewhite and Jeffrey T. Kerby and Susan Kutz and Ian Stirling and Donald A. Walker},
  journal={Science},
  year={2013},
  volume={341},
  pages={519 - 524}
}
After a decade with nine of the lowest arctic sea-ice minima on record, including the historically low minimum in 2012, we synthesize recent developments in the study of ecological responses to sea-ice decline. Sea-ice loss emerges as an important driver of marine and terrestrial ecological dynamics, influencing productivity, species interactions, population mixing, gene flow, and pathogen and disease transmission. Major challenges in the near future include assigning clearer attribution to sea… 

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References

SHOWING 1-10 OF 57 REFERENCES

Circumpolar Arctic Tundra Vegetation Change Is Linked to Sea Ice Decline

Abstract Linkages between diminishing Arctic sea ice and changes in Arctic terrestrial ecosystems have not been previously demonstrated. Here, the authors use a newly available Arctic Normalized

Sea ice phenology and timing of primary production pulses in the Arctic Ocean

Phenological variability in primary production is likely to have consequences for higher trophic levels, particularly for the zooplankton grazers, whose main food source is composed of the dually pulsed algae production of the Arctic.

Effects of climate warming on polar bears: a review of the evidence.

Evidence that documents how loss of sea ice negatively affects polar bears' long-term survival is summarized, with quantifiable negative effects being documented first in the more southerly subpopulations, such as those in Hudson Bay or the southern Beaufort Sea.

Perspectives on the Arctic's Shrinking Sea-Ice Cover

Although the large scatter between individual model simulations leads to much uncertainty as to when a seasonally ice-free Arctic Ocean might be realized, this transition to a new arctic state may be rapid once the ice thins to a more vulnerable state.

Massive Phytoplankton Blooms Under Arctic Sea Ice

Evidence suggests that under-ice phytoplankton blooms may be more widespread over nutrient-rich Arctic continental shelves and that satellite-based estimates of annual primary production in these waters may be underestimated by up to 10-fold.

Reconstructed changes in Arctic sea ice over the past 1,450 years

A network of high-resolution terrestrial proxies from the circum-Arctic region is used to reconstruct past extents of summer sea ice, and shows that both the duration and magnitude of the current decline in sea ice seem to be unprecedented for the past 1,450 years.

The impact of lower sea-ice extent on Arctic greenhouse-gas exchange

An increasingly ice-free Arctic Ocean could have significant implications for greenhouse-gas sources and sinks in the Northern high latitudes. In this Review, the impact of diminishing sea-ice extent

Ecological Dynamics Across the Arctic Associated with Recent Climate Change

These rapid changes in terrestrial, freshwater, and marine systems, presage changes at lower latitudes that will affect natural resources, food production, and future climate buffering, and highlight areas of ecological research that deserve priority as the Arctic continues to warm.

Current state and trends in Canadian Arctic marine ecosystems: II. Heterotrophic food web, pelagic-benthic coupling, and biodiversity

As part of the Canadian contribution to the International Polar Year (IPY), several major international research programs have focused on offshore arctic marine ecosystems. The general goal of these
...