Haddad Lab at NC State
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Nick Haddad


Microcosm Disturbance Experiment

Effects of connectivity and disturbance on metacommunities

Starting with his sabbatical at University of California-Davis in 2006-7, Nick Haddad has collaborated with Marcel Holyoak and Tawny Mata to determine the effects of disturbance and connectivity on community diversity and composition.  Working with experimental microcosms of protists, they have shown how the effects of disturbance on diversity can be predicted by understanding the traits of species within the community.  In particular, species traits like their population growth rates have been most important in predicting their ability to persist through disturbance.  Contrary to conventional wisdom, competitive interactions were less important (though not unimportant) predictors of species persistence in disturbed communities.
© Nick Haddad