Climate-driven aerobic habitat loss in the California Current System
| Autor: | Fayçal Kessouri, Lionel Renault, Evan M. Howard, Brad A. Seibel, Daniele Bianchi, James C. McWilliams, Justin L. Penn, Martha Sutula, Curtis Deutsch, Hartmut Frenzel |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences Climate Climate Change Effects of global warming on oceans Oceanography 01 natural sciences California Anchovy Animals Marine ecosystem skin and connective tissue diseases Life Below Water Research Articles Ecosystem 0105 earth and related environmental sciences Multidisciplinary Ecology biology 010604 marine biology & hydrobiology fungi Global warming Fishes Temperature SciAdv r-articles Hypoxia (environmental) biology.organism_classification Climate Action Oxygen Habitat destruction Habitat Environmental science sense organs Research Article |
| Zdroj: | Science Advances Science advances, vol 6, iss 20 |
| ISSN: | 2375-2548 |
| DOI: | 10.1126/sciadv.aay3188 |
| Popis: | Aerobic habitat mediates species responses to historical and future climate change in the California Current System. Climate warming is expected to intensify hypoxia in the California Current System (CCS), threatening its diverse and productive marine ecosystem. We analyzed past regional variability and future changes in the Metabolic Index (Φ), a species-specific measure of the environment’s capacity to meet temperature-dependent organismal oxygen demand. Across the traits of diverse animals, Φ exhibits strong seasonal to interdecadal variations throughout the CCS, implying that resident species already experience large fluctuations in available aerobic habitat. For a key CCS species, northern anchovy, the long-term biogeographic distribution and decadal fluctuations in abundance are both highly coherent with aerobic habitat volume. Ocean warming and oxygen loss by 2100 are projected to decrease Φ below critical levels in 30 to 50% of anchovies’ present range, including complete loss of aerobic habitat—and thus likely extirpation—from the southern CCS. Aerobic habitat loss will vary widely across the traits of CCS taxa, disrupting ecological interactions throughout the region. |
| Databáze: | OpenAIRE |
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