The process of ecological speciation has not been considered in great detail. We can gain a new perspective on this process by viewing new species as successful invaders, and by using invasive species as a model system for understanding the early stages of speciation. I propose that ecological species may be polyphyletic, and undergo genetic differentiation early in their histories. I also note that there are formidable genetic obstacles to ecological speciation. The rate of speciation is dependent on geographical and ecological variables, as are rates of invasions by exotic species. Ecological opportunity is the key for speciation and invasion; and it is most often found on young islands. In general there are no traits that presage which exotic species will be the best invaders of natural areas. Thus it would be difficult to predict which traits foster ecological speciation. Herbaceous plants are more invasive and have higher rates of diversification than woody plants.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.