The role of calcium and predation on plate morph evolution in the three-spined stickleback (Gasterosteus aculeatus)
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While the genetic basis to plate morph evolution of the three-spined stickleback (Gasterosteus aculeatus) is well described, the environmental variables that select for different plate and spine morphs are incompletely understood. Using replicate populations of three-spined sticklebacks on North Uist, Scotland, we previously investigated the role of predation pressure and calcium limitation on the adaptive evolution of stickleback morphology and behavior. While dissolved calcium proved a significant predictor of plate and spine morph, predator abundance did not. Ecol. Evol., xxx, 2014 and xxx performed a comparable analysis to our own to address the same question. They failed to detect a significant effect of dissolved calcium on morphological evolution, but did establish a significant effect of predation; albeit in the opposite direction to their prediction.
Smith , C , Spence , R G A , Barber , I , Przybylski , M & Wootton , R 2014 , ' The role of calcium and predation on plate morph evolution in the three-spined stickleback ( Gasterosteus aculeatus ) ' Ecology and Evolution , vol. 4 , no. 18 , pp. 3550-3554 . https://doi.org/10.1002/ece3.1180
Ecology and Evolution
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