https://scholars.lib.ntu.edu.tw/handle/123456789/509314
Title: | Past and future decline of tropical pelagic biodiversity | Authors: | Yasuhara, Moriaki Wei, Chih-Lin Kucera, Michal Costello, Mark J. Tittensor, Derek P. Kiessling, Wolfgang Bonebrake, Timothy C. Tabor, Clay R. Feng, Ran Baselga, Andr?s Kretschmer, Kerstin Kusumoto, Buntarou Stathes Paganis CHIH-LIN WEI |
Issue Date: | 2020 | Journal Volume: | 117 | Journal Issue: | 23 | Start page/Pages: | 12891 | Source: | Proceedings of the National Academy of Sciences | Abstract: | A major research question concerning global pelagic biodiversity remains unanswered: when did the apparent tropical biodiversity depression (i.e., bimodality of latitudinal diversity gradient [LDG]) begin? The bimodal LDG may be a consequence of recent ocean warming or of deep-time evolutionary speciation and extinction processes. Using rich fossil datasets of planktonic foraminifers, we show here that a unimodal (or only weakly bimodal) diversity gradient, with a plateau in the tropics, occurred during the last ice age and has since then developed into a bimodal gradient through species distribution shifts driven by postglacial ocean warming. The bimodal LDG likely emerged before the Anthropocene and industrialization, and perhaps ∼15,000 y ago, indicating a strong environmental control of tropical diversity even before the start of anthropogenic warming. However, our model projections suggest that future anthropogenic warming further diminishes tropical pelagic diversity to a level not seen in millions of years. © 2020 National Academy of Sciences. All rights reserved. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/509314 | DOI: | 10.1073/pnas.1916923117 | SDG/Keyword: | article; biodiversity; climate change; foraminifer; fossil; ice age; industrialization; last glacial maximum; nonhuman; planktonic foraminifera; sea; species distribution; tropics; warming; animal; physiology; plankton; sediment; tropic climate; Animals; Biodiversity; Climate Change; Fossils; Geologic Sediments; Plankton; Tropical Climate [SDGs]SDG13 |
Appears in Collections: | 物理學系 |
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