Monthly patterns of abundance of reef sharks observed by dive guides in Palau.

<p>A) Relative abundance of common species of reef sharks observed by divers at monitored sites. B) Relative abundance of common species of reef sharks observed by diver guides as a function of sine-transformed months. Error bars indicate SE. All sharks: y = 2.70x+16.30, R² = 0.81, Grey reef: y = 1.59x+10.08, R² = 0.64, Whitetip: y = 0.99x+5.27, R² = 0.73. *May values of abundance of “All sharks” and “Grey reef sharks” not included in regressions.