Corals sustain growth but not skeletal density across the Florida Keys Reef Tract despite ongoing warming
| Autor: | Eric Friedlander, Daphne N. De Leener, Karl D. Castillo, Justin H. Baumann, John P. Rippe, Hannah E. Aichelman, Sarah W. Davies |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Hot Temperature 010504 meteorology & atmospheric sciences Climate Humid subtropical climate Climate change 01 natural sciences Global Warming Calcification Physiologic Sclerochronology Environmental Chemistry Animals 14. Life underwater Longitudinal Studies Reef 0105 earth and related environmental sciences General Environmental Science Global and Planetary Change geography geography.geographical_feature_category Ecology biology Coral Reefs 010604 marine biology & hydrobiology fungi Global warming technology industry and agriculture Ocean acidification Coral reef biochemical phenomena metabolism and nutrition biology.organism_classification Anthozoa 13. Climate action Florida population characteristics geographic locations Siderastrea siderea |
| Zdroj: | Global change biology. 24(11) |
| ISSN: | 1365-2486 |
| Popis: | Through the continuous growth of their carbonate skeletons, corals record information about past environmental conditions and their effect on colony fitness. Here, we characterize century-scale growth records of inner and outer reef corals across ~200 km of the Florida Keys Reef Tract (FKRT) using skeletal cores extracted from two ubiquitous reef-building species, Siderastrea siderea and Pseudodiploria strigosa. We find that corals across the FKRT have sustained extension and calcification rates over the past century but have experienced a long-term reduction in skeletal density, regardless of reef zone. Notably, P. strigosa colonies exhibit temporary reef zone-dependent reductions in extension rate corresponding to two known extreme temperature events in 1969-1970 and 1997-1998. We propose that the subtropical climate of the FKRT may buffer corals from chronic growth declines associated with climate warming, though the significant reduction in skeletal density may indicate underlying vulnerability to present and future trends in ocean acidification. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text