#ScienceTALKS 2017: Dr James Guest on identifying and characterising coral reef 'oases'

Event date: Tuesday, 22 August 2017 at 6.00 PM
Running until: Tuesday, 22 August 2017 at 7.00 PM

Venue: OL1

Our series of public #ScienceTALKS lectures concludes its third year of events.

Most coral reefs are in a degraded state because of human activities, there is, however, considerable variation in coral cover among reefs.

Even in highly degraded areas it is commonplace to find one, or a few reefs that have remained in or returned to relatively good condition. Hereafter we refer to these as “oasis reefs” and define them as having performed consistently above average over time relative to overall regional performance.

Identifying and characterising oasis reefs is critical as they may act as refugia for corals in the face of climate change and anthropogenic disturbances. Here we examine long term benthic monitoring data from four well-studied coral reef focal locations in the Pacific (main Hawaiian Islands and Moorea) and the Caribbean (the Florida Keys and St. John). We develop a quantitative definition to identify oasis sites using standardised scores (z-scores) for coral cover. We also distinguish between temporally persistent and variable oasis sites using a measure of stability (coefficient of variation).

In this talk Dr James Guest will discuss the implications of our findings for coral reef futures.

Online booking is not required for this event. 

For more information, contact Michael Sweet.