Ragan Callaway

Ragan (Ray) Callaway is a plant and community ecologist.

Callaway obtained his Masters of Science at the University of Tennessee in 1983 and his Doctor of Philosophy at the University of California, Santa Barbara in 1990. Currently, he researches and teaches out of the University of Montana in Missoula, Montana. His research concentrates on the interactions within plant communities and ecosystems, predominantly those in alpine environments.

He investigates the direct and indirect interactions between plants and with other organisms. More specifically, these interactions include resource competition, allelopathy, facilitation/mutualisms and interactions with invasive species, as well as soil microbe, herbivore and competitor-mediated interactions. Provided by Wikipedia
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  1. 1
    Associations Between Developmental Stability, Canalization, and Phenotypic Plasticity in Response to Heterogeneous Experience

    Associations Between Developmental Stability, Canalization, and Phenotypic Plasticity in Response to Heterogeneous Experience by Shu Wang, Ragan M. Callaway

    Published 2024-10-01
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  2. 2
    Models of experimentally derived competitive effects predict biogeographical differences in the abundance of invasive and native plant species.

    Models of experimentally derived competitive effects predict biogeographical differences in the abundance of invasive and native plant species. by Sa Xiao, Guangyan Ni, Ragan M Callaway

    Published 2013-01-01
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  3. 3
    A realized facilitation cascade mediated by biological soil crusts in a sagebrush steppe community

    A realized facilitation cascade mediated by biological soil crusts in a sagebrush steppe community by Wendy M. Ridenour, C. J. Lortie, Ragan M. Callaway

    Published 2023-03-01
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  4. 4
    Phytotoxic effects of (+/-)-catechin in vitro, in soil, and in the field.

    Phytotoxic effects of (+/-)-catechin in vitro, in soil, and in the field. by Inderjit, Jarrod L Pollock, Ragan M Callaway, William Holben

    Published 2008-07-01
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  5. 5
    Invasive and non-invasive congeners show similar trait shifts between their same native and non-native ranges.

    Invasive and non-invasive congeners show similar trait shifts between their same native and non-native ranges. by Yedra García, Ragan M Callaway, Alecu Diaconu, Daniel Montesinos

    Published 2013-01-01
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  6. 6
    Growth and competitive effects of Centaurea stoebe populations in response to simulated nitrogen deposition.

    Growth and competitive effects of Centaurea stoebe populations in response to simulated nitrogen deposition. by Wei-Ming He, Daniel Montesinos, Giles C Thelen, Ragan M Callaway

    Published 2012-01-01
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  7. 7
    Enemy release from the effects of generalist granivores can facilitate Bromus tectorum invasion in the Great Basin Desert

    Enemy release from the effects of generalist granivores can facilitate Bromus tectorum invasion in the Great Basin Desert by Jacob E. Lucero, Urs Schaffner, Ghorbanali Asadi, Alireza Bagheri, Toshpulot Rajabov, Ragan M. Callaway

    Published 2019-08-01
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  8. 8
    Age, experience, social goals, and engagement with research scientists may promote innovation in ecological restoration

    Age, experience, social goals, and engagement with research scientists may promote innovation in ecological restoration by Jakki J. Mohr, Tina M. Cummins, Theresa M. Floyd, Elizabeth Covelli Metcalf, Ragan M. Callaway, Cara R. Nelson

    Published 2023-01-01
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  9. 9
    Risk of Facilitated Invasion Depends Upon Invader Identity, Not Environmental Severity, Along an Aridity Gradient

    Risk of Facilitated Invasion Depends Upon Invader Identity, Not Environmental Severity, Along an Aridity Gradient by Jacob E. Lucero, Jacob E. Lucero, Jacob E. Lucero, Akasha M. Faist, Christopher J. Lortie, Ragan M. Callaway

    Published 2022-05-01
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  10. 10
    Community impacts of Prosopis juliflora invasion: biogeographic and congeneric comparisons.

    Community impacts of Prosopis juliflora invasion: biogeographic and congeneric comparisons. by Rajwant Kaur, Wilfredo L Gonzáles, Luis Daniel Llambi, Pascual J Soriano, Ragan M Callaway, Marnie E Rout, Timothy J Gallaher, Inderjit

    Published 2012-01-01
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  11. 11
    Range-expanding populations of a globally introduced weed experience negative plant-soil feedbacks.

    Range-expanding populations of a globally introduced weed experience negative plant-soil feedbacks. by Krikor Andonian, José L Hierro, Liana Khetsuriani, Pablo Becerra, Grigor Janoyan, Diego Villarreal, Lohengrin Cavieres, Laurel R Fox, Ragan M Callaway

    Published 2011-01-01
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  12. 12
    Escape from natural enemies depends on the enemies, the invader, and competition

    Escape from natural enemies depends on the enemies, the invader, and competition by Jacob E. Lucero, Nafiseh Mahdavi Arab, Sebastian T. Meyer, Robert W. Pal, Rebecca A. Fletcher, David U. Nagy, Ragan M. Callaway, Wolfgang W. Weisser

    Published 2020-10-01
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  13. 13
    Increasing global aridity destabilizes shrub facilitation of exotic but not native plant species

    Increasing global aridity destabilizes shrub facilitation of exotic but not native plant species by Jacob E. Lucero, Alessandro Filazzola, Ragan M. Callaway, Jenna Braun, Nargol Ghazian, Stephanie Haas, M. Florencia Miguel, Malory Owen, Merav Seifan, Mario Zuliani, Christopher J. Lortie

    Published 2022-12-01
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  14. 14
    Invasive plant suppresses the growth of native tree seedlings by disrupting belowground mutualisms.

    Invasive plant suppresses the growth of native tree seedlings by disrupting belowground mutualisms. by Kristina A Stinson, Stuart A Campbell, Jeff R Powell, Benjamin E Wolfe, Ragan M Callaway, Giles C Thelen, Steven G Hallett, Daniel Prati, John N Klironomos

    Published 2006-05-01
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  15. 15
    Genetic evidence for plural introduction pathways of the invasive weed Paterson's curse (Echium plantagineum L.) to southern Australia.

    Genetic evidence for plural introduction pathways of the invasive weed Paterson's curse (Echium plantagineum L.) to southern Australia. by Xiaocheng Zhu, David Gopurenko, Miguel Serrano, Mark A Spencer, Petrus J Pieterse, Dominik Skoneczny, Brendan J Lepschi, Manuel J Reigosa, Geoff M Gurr, Ragan M Callaway, Leslie A Weston

    Published 2019-01-01
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  16. 16
    Performance in the recruitment life stage and its potential contribution to invasive success in the polyploid invader Centaurea stoebe

    Performance in the recruitment life stage and its potential contribution to invasive success in the polyploid invader Centaurea stoebe by Kevin Kožić, Matthias Hartmann, Ragan M. Callaway, Isabell Hensen, Dávid U. Nagy, Patrik Mráz, Mohammad M. Al-Gharaibeh, Svetlana Bancheva, Alecu Diaconu, Jiří Danihelka, David J. Ensing, Rita Filep, Zigmantas Gudžinskas, Avni Hajdari, Roxana Nicoară, Susanne Lachmuth, Chandra E. Moffat, Andriy Novikov, Dragica Purger, Mandy L. Slate, Agnieszka Synowiec, Ghizela D. Vonica, Annika M. Zuleger, Christoph Rosche

    Published 2024-10-01
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