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Using species distribution modelling to predict future distributions of phytoplankton: Case study using species important for the biological pump
Jensen, L.Ø.; Mousing, E.A.; Richardson, K. (2017). Using species distribution modelling to predict future distributions of phytoplankton: Case study using species important for the biological pump. Mar. Ecol. (Berl.) 38(3): e12427. https://dx.doi.org/10.1111/maec.12427
In: Marine Ecology (Berlin). Blackwell: Berlin. ISSN 0173-9565; e-ISSN 1439-0485
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| Trefwoorden |
Aquatic communities > Plankton > Phytoplankton
Climate change
Chaetoceros diadema (Ehrenberg) Gran, 1897 [WoRMS]; Emiliania huxleyi (Lohmann) W.W.Hay & H.Mohler, 1967 [WoRMS]
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| Author keywords |
biological pump; species distribution modelling |
| Auteurs | | Top |
- Jensen, L.Ø.
- Mousing, E.A.
- Richardson, K.
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| Abstract |
Some phytoplankton species have been predicted to contribute more to the biological pump than others. In this study, we examine the potential of species distribution modelling (SDM) for describing current and predicting future global distributions of two phytoplankton species: the diatom Chaetoceros diadema and the coccolithophore Emiliania huxleyi. Species distribution models (SDMs) were constructed using species data from the Ocean Biogeographic Information System and environmental layers from the Coupled Model Intercomparison Project Phase 5. The resulting distributions were evaluated by comparing predicted distributions with those found via a literature survey. The developed SDMs were then applied to predict future changes in the distributions of these species using environmental conditions based on the Intergovernmental Panel on Climate Change's Representative Concentration Pathways scenario 8.5 climate scenario, predicted for the year 2100. The model predicts that the total ocean area covered by C. diadema and E. huxleyi will decline under the examined climate scenario by 8% and 16%, respectively. Furthermore, the future ranges above depths >1,000 m are predicted to decline by 28% for C. diadema. As the biological pump is most active in deep ocean waters, this projected decrease in range in the deeper regions of the ocean may have implications for carbon sequestration, particularly for the diatom species. We conclude that SDM appears to be a robust tool for examining phytoplankton distributions. If the predicted changes in ranges of these two species under future ocean conditions are realised, this may result in a reduced contribution of these two phytoplankton species to carbon sequestration via the biological pump. |
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