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Article
Helen M. Alexander, Auteur ; Emily Bruns, Auteur ; Hayley Schebor, Auteur ; Carolyn M. Malmstrom, Auteur1. To understand the eco-evolutionary significance of plant viruses in nature, we must (i) quantify the effects of infection on plant fitness and (ii) recognize that native plants are increasingly exposed to crop-associated viruses. Studies of p[...]
Article
James D. Bever, Auteur ; Scott A. Mangan, Auteur ; Helen M. Alexander, Auteur ; D. J. Futuyma, AuteurWe present strong evidence that pathogens play a critical role in structuring plant communities and maintaining plant diversity. Pathogens mediate plant species coexistence through trade-offs between competitive ability and resistance to pathoge[...]
Article
Helen M. Alexander, Auteur ; Bryan L. Foster, Auteur ; Ford Ballantyne, Auteur ; Cathy D. Collins, Auteur ; Janis Antonovics, Auteur ; Robert D. Holt, Auteur1. Metapopulation and metacommunity theories occupy a central role in ecology, but can be difficult to apply to plants. Challenges include whether seed dispersal is sufficient for population connectivity, the role of seed banks and problems with[...]
Article
Helen M. Alexander, Auteur ; Sarah Price, Auteur ; Rhonda Houser, Auteur ; Debra Finch, Auteur ; Michael Tourtellot, Auteur1 Small, isolated populations at species' borders have been postulated to be less likely to have specialist pathogens and predators. Field and herbarium surveys were thus used to determine if two pathogens (a smut and a rust) and a pre-dispersal[...]
