Long-term response of marine plankton to climate change in the North Atlantic Ocean during the past 24,000 years ...
This cumulative doctoral thesis aims to comprehensively assess the long-term response of marine plankton biodiversity to climate change, comparable in magnitude to predicted future warming. For this, the fossil record of planktonic foraminifera, prolific marine calcifier, is analysed across the last...
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| Format: | Doctoral or Postdoctoral Thesis |
| Language: | English |
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Universität Bremen
2023
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| Online Access: | https://dx.doi.org/10.26092/elib/3089 https://media.suub.uni-bremen.de/handle/elib/8055 |
| Summary: | This cumulative doctoral thesis aims to comprehensively assess the long-term response of marine plankton biodiversity to climate change, comparable in magnitude to predicted future warming. For this, the fossil record of planktonic foraminifera, prolific marine calcifier, is analysed across the last ice age to the current warm period on global and local scales and compared to changes in reconstructed sea surface temperature (SST). By comparing the results with coccolithophore and dinoflagellate responses, two groups representing different functional groups, it is further assessed whether the response of planktonic foraminifera is representative of marine plankton. Asymmetric range shifts and poleward migrations of planktonic foraminifera assemblages are observed, leading to a surplus of species in the mid-latitudes and the emergence of novel assemblages with the beginning of the current warm period. Deviations between assemblage changes and SST changes during the current warm period are also evident in ... |
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