Why keep monitoring coral reefs?

This article focuses on the value and outcomes of long-term ecological monitoring of Caribbean coral reefs, based on a 37-year study at Yawzi Point and Tektite in the US Virgin Islands. The monitoring, which began in 1987, documents severe declines in coral cover—up to 92% at Yawzi Point—largely driven by chronic increases in seawater temperature, repeated hurricanes, bleaching events, and disease outbreaks, with reefs shifting from dominance by long-lived corals such as *Orbicella annularis* to weedy corals and macroalgae. Despite the degraded state and poor recovery prospects, the study emphasizes that continued monitoring is essential to understand ongoing ecological changes, identify the processes driving them, and inform targeted management and conservation efforts. The article also highlights that long-term data reveal ecological surprises and complexities that short-term studies cannot capture, underscoring the need for sustained, detailed monitoring supported by interdisciplinary teams and modern analytical approaches.