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Baselines and Degradation of Coral Reefs in the Northern Line Islands
Effective conservation requires rigorous baselines of pristine conditions to assess the impacts of human activities and to evaluate the efficacy of management. Most coral reefs are moderately to… Expand
Caribbean Corals in Crisis: Record Thermal Stress, Bleaching, and Mortality in 2005
Background The rising temperature of the world's oceans has become a major threat to coral reefs globally as the severity and frequency of mass coral bleaching and mortality events increase. In 2005,… Expand
Patterns of association between Symbiodinium and members of the Montastraea annularis species complex on spatial scales ranging from within colonies to between geographic regions
Patterns of associations between coral colonies and the major clades of zooxanthellae can vary across scales ranging from individual colonies to widely separated geographic regions. This is… Expand
Local Stressors Reduce Coral Resilience to Bleaching
Coral bleaching, during which corals lose their symbiotic dinoflagellates, typically corresponds with periods of intense heat stress, and appears to be increasing in frequency and geographic extent… Expand
Century-scale records of coral growth rates indicate that local stressors reduce coral thermal tolerance threshold.
Coral bleaching, during which corals lose their symbiotic dinoflagellates, appears to be increasing in frequency and geographic extent, and is typically associated with abnormally high water… Expand
Predator-Induced Demographic Shifts in Coral Reef Fish Assemblages
In recent years, it has become apparent that human impacts have altered community structure in coastal and marine ecosystems worldwide. Of these, fishing is one of the most pervasive, and a growing… Expand
Fishing top predators indirectly affects condition and reproduction in a reef-fish community.
- S. Walsh, S. Hamilton, B. Ruttenberg, M. K. Donovan, S. Sandin
- Biology, Medicine
- Journal of fish biology
- 1 March 2012
To examine the indirect effects of fishing on energy allocation in non-target prey species, condition and reproductive potential were measured for five representative species (two-spot red snapper… Expand
Ecosystem-Scale Effects of Nutrients and Fishing on Coral Reefs
- S. Walsh
Nutrient pollution and fishing are the primary local causes of coral reef decline but their ecosystem-scale effects are poorly understood. Results from small-scale manipulative experiments of… Expand
Benthic foraminiferal assemblages from Kiritimati (Christmas) Island indicate human-mediated nutrification has occurred over the scale of decades
Community assemblages of live and dead benthic foraminifera from Kiritimati (Christmas) Island, Kiribati, were used to investigate changes in nutrification before and after human occupation. Benthic… Expand