![]() Here, we explored how a generalist hemiparasite, Castilleja, influences plant richness, evenness, community composition, and mycorrhizal colonization patterns across a ∼1,000 m elevational gradient in the North American Rocky Mountains. Hemiparasites reduce host resources by directly removing nutrients from hosts, competing for light and space, and may indirectly reduce host resources by disrupting plant associations with symbiotic root fungi, like arbuscular mycorrhizal fungi and dark-septate endophytes. Hemiparasitic plants increase plant biodiversity by reducing the abundance of dominant plant species, allowing for the establishment of subordinate species. ![]() Hemiparasitic plants increase alpine plant richness and evenness but reduce arbuscular mycorrhizal fungal colonization in dominant plant species. Cite this article McKibben M, Henning JA. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. ![]() 4 Department of Ecology, Evolution, and Behavior, University of Minnesota, Saint Paul, MN, U DOI 10.7717/peerj.5682 Published Accepted Received Academic Editor Alastair Culham Subject Areas Ecology Keywords Castilleja, Arbuscular mycorrhizal fungi, Hemiparasites, Dark septate endophytes, Diversity, Elevational gradient Copyright © 2018 McKibben and Henning Licence This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. ![]()
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