Leanne J. Hepburn

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Marine environments with naturally high CO2 concentrations have become important research sites for studying the impacts of future ocean acidification on biological processes. We conducted high temporal resolution pH and temperature measurements in and around a shallow (2.5e3 m) CO2 vent site off Ischia, Italy in May and June 2008. Loggers were deployed at(More)
Although coral reef health across the globe is declining as a result of anthropogenic impacts, relatively little is known of how environmental variability influences reef organisms other than corals and fish. Sponges are an important component of coral reef fauna that perform many important functional roles and changes in their abundance and diversity as a(More)
Calcareous encrusters stabilize and bind reef framework and contribute significantly to reef function and biodiversity. Their calcareous skeletons have good preservation potential which, together with well-constrained habitat preferences, makes them useful indicators of past environmental conditions. However, our knowledge of environmental tolerances and(More)
Sponges are important components of reef communities worldwide, fulfilling a number of important functional roles. Habitat degradation caused by the loss of hard corals has the potential to cause increases in sponge abundance and percentage cover as they gain access to resources such as space and food. In this study we compared sponge densities and(More)
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