Difference between revisions of "Climate change leads to Arctic food shortages"
Dronkers J (talk | contribs) |
|||
(6 intermediate revisions by 2 users not shown) | |||
Line 1: | Line 1: | ||
Warming in the European [[Arctic_Ocean|Arctic]] has caused not only sea ice to melt and temperature to increase but also Atlantic waters to advance towards higher latitudes. | Warming in the European [[Arctic_Ocean|Arctic]] has caused not only sea ice to melt and temperature to increase but also Atlantic waters to advance towards higher latitudes. | ||
− | The [http://www.marbef.org MarBEF] [http://www.marbef.org/projects/arcteco/index.php ArctEco] project showed how Atlantic water coming from a biologically diverse marine region | + | The [http://www.marbef.org MarBEF] [http://www.marbef.org/projects/arcteco/index.php ArctEco] project showed how [[Atlantic Ocean|Atlantic]] water coming from a biologically diverse marine region (Norwegian Sea, Norwegian and British shelf) introduces additional [[species]] to the relatively species-poor Arctic. |
− | (Norwegian Sea, Norwegian and British shelf) introduces additional [[species]] to the relatively species-poor Arctic. | ||
The [[pelagic]] herbivores (e.g., krill) from the relatively warm Atlantic water are typically smaller than the cold-water Arctic herbivore species. Naturally, top predators of the Arctic (sea birds, seals, whales) feed efficiently on these relatively large | The [[pelagic]] herbivores (e.g., krill) from the relatively warm Atlantic water are typically smaller than the cold-water Arctic herbivore species. Naturally, top predators of the Arctic (sea birds, seals, whales) feed efficiently on these relatively large | ||
Line 21: | Line 20: | ||
[[Predicted biodiversity changes in the Arctic]] | [[Predicted biodiversity changes in the Arctic]] | ||
− | |||
<P> | <P> | ||
<BR> | <BR> | ||
Line 29: | Line 27: | ||
==References== | ==References== | ||
<references/> | <references/> | ||
+ | <P> | ||
+ | <BR> | ||
+ | |||
+ | [[Category: MarBEF Wiki]] |
Latest revision as of 18:10, 18 February 2024
Warming in the European Arctic has caused not only sea ice to melt and temperature to increase but also Atlantic waters to advance towards higher latitudes.
The MarBEF ArctEco project showed how Atlantic water coming from a biologically diverse marine region (Norwegian Sea, Norwegian and British shelf) introduces additional species to the relatively species-poor Arctic.
The pelagic herbivores (e.g., krill) from the relatively warm Atlantic water are typically smaller than the cold-water Arctic herbivore species. Naturally, top predators of the Arctic (sea birds, seals, whales) feed efficiently on these relatively large herbivores, often without any intermediate small predators between the herbivores and the top predators. Warming causes large Arctic herbivores to be replaced by smaller Atlantic species, thus reducing the food resources available to the top predators.
In the warming Arctic, primary production is utilised by smaller, faster-growing species. Additionally, small carnivores are becoming more diversified and numerous, which is dissipating the energy flow considerably. Therefore warming effects lead to higher biodiversity in the Arctic and simultaneous food shortages for the top predators.[1]
See Also
Predicted biodiversity changes in the Arctic
References
- ↑ Heip, C., Hummel, H., van Avesaath, P., Appeltans, W., Arvanitidis, C., Aspden, R., Austen, M., Boero, F., Bouma, TJ., Boxshall, G., Buchholz, F., Crowe, T., Delaney, A., Deprez, T., Emblow, C., Feral, JP., Gasol, JM., Gooday, A., Harder, J., Ianora, A., Kraberg, A., Mackenzie, B., Ojaveer, H., Paterson, D., Rumohr, H., Schiedek, D., Sokolowski, A., Somerfield, P., Sousa Pinto, I., Vincx, M., Węsławski, JM., Nash, R. (2009). Marine Biodiversity and Ecosystem Functioning. Printbase, Dublin, Ireland ISSN 2009-2539