Coevolution and Mutualism

Coevolution and divergence in the Joshua tree/yucca moth mutualism.

Theory suggests that coevolution drives diversification in obligate pollination mutualism, but it has been difficult to disentangle the effects of coevolution from other factors. We test the hypothesis that differential selection by two sister species of pollinating yucca moths (Tegeticula spp.) drove divergence between two varieties of the Joshua tree (Yucca brevifolia) by comparing measures o...

Coevolution of Mutualism between Ants and Acacias in Central America.

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Distinguishing coevolution from covicariance in an obligate pollination mutualism: asynchronous divergence in Joshua tree and its pollinators.

Obligate pollination mutualisms--in which both plants and their pollinators are reliant upon one another for reproduction--represent some of the most remarkable coevolutionary interactions in the natural world. The intimacy and specificity of these interactions have led to the prediction that the plants and their pollinators may be prone to cospeciation driven by coevolution. Several studies ha...

Symbiosis and Mutualism

Mutualism and Cooperation