Abstract
The green turtle (Chelonia mydas) is one of six turtle species which breeds around northern Australia
and Indonesia. The number of green turtles observed nesting varies substantially from year to year.
The interannual fluctuations in the number of nesting turtles are in phase at widely separated rookeries.
They are also correlated with an index of the Southern Oscillation, a coherent pattern of atmospheric
pressure, temperature and rainfall fluctuations which dominates the interannual variability of the climate
of the tropical Pacific. Major fluctuations in the numbers of turtles breeding occur two years after
major fluctuations in the Southern Oscillation. The relationship is strong enough to be useful in
predicting, two years in advance, the numbers of green turtles breeding in Great Barrier Reef rookeries.
This is the first study to report a biological impact of the Southern Oscillation that allows such a
long-range prediction of the impact.
Subject
Management, Monitoring, Policy and Law,Ecology, Evolution, Behavior and Systematics
Cited by
63 articles.
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