Byrne, M†. and R.J. Warren II. 2025. Successful allelopathic competition is not limited to nonnative plants. International Journal of Plant Science
Warren II, R.J. 2025. The role of preadapted traits and turfgrass community resistance in Taraxacum officinale invasion success. Plant Ecology 226: 309-317.
Warren II, R.J., P.T. Frankson, J.E. Mohan, M.A. Bradford and J. King. 2025. Antagonistic biotic interactions mitigate the positive effects of warming on wood decomposition. Oecologia 207: 1. doi.org/10.1007/s00442-024-05640-w
Warren II, R.J. 2024. Elevation gradients in montane ant species. In Leal, I.R., F.M.P. Oliveira, X. Arnan and A. Andersen "Ant Responses to Climate Change: From Individuals to Ecosystem Services." Springer.
Byrne, M. and R.J. Warren II. In Press. Intraspecific variation in Arabidopsis thaliana autotoxicity. Plant Ecology.
Malcolm, K. and R.J. Warren II. 2023 Urban archipelago limits goldenrod gall fly distribution. URBAN NATURALIST 60: 1-12.
Merchlinksy, A. †, P.T. Frankson, R. Gitzen, C.A. Lepczyk, J.E. Mohan and R.J. Warren II. 2023. Warming promotes non-native invasive ants while inhibiting native ant communities. ECOLOGICAL ENTOMOLOGY 48: 588-596.
Warren II, R.J., A. Guiguet, C. Mokadam†, J.F. Tooker and A. Deans. 2022. Oak galls exhibit ant dispersal convergent with myrmecochorous seeds. THE AMERICAN NATURALIST 200: doi.org/10.1086/720283
Warren II, R.J., J. Costa and M. Bradford. 2022. Seeing shapes in clouds: the fallacy of deriving ecological hypotheses from statistical distributions. OIKOS 2022: 209315.
Warren II, R.J. and C. Solomon†. 2022. Non-native stinging ant interactions with native anurans. ECOLOGICAL ENTOMOLOGY 47: 989-997.
Schultz, M.†, R.J. Warren II, J. Costa, B. Collins and M. Bradford. 2022. Mymecochorous plant species and their ant seed dispersers by forest seral stage. ECOLOGICAL ENTOMOLOGY 22: 749-757.
Warren II, R.J., P. Frankson and J. Mohan. 2022. Global change drivers synergize with the negative impacts of non-native invasive ants on native seed-dispersing ants. BIOLOGICAL INVASIONS doi.org/10.1007/s10530-022-02943-y.
Warren II, R.J. and S. Vermette. 2022. Laurentian Great Lakes warming threatens northern fruit belt refugia. INT JOURNAL OF BIOMETEOROLOGY 66: 669-67.
Bayba, S.†, L.E. Burklakova, A.Y. Karatayev and R.J. Warren II. 2022. Non-native Dreissena associated with increased native benthic community abundance with greater lake depth. JOURNAL OF GREAT LAKES RESEARCH 48: 734-745.
WE.B. Ward, M.C. Duguid, S.E. Kuebbing, J.C. Lendemer, R.J. Warren II and M.A. Bradford. 2021. Ericoid mycorrhizal shrubs alter the relationship between tree mycorrhizal dominance and soil carbon and nitrogen. JOURNAL OF ECOLOGY 109: 3524-3540.
Bradford M.A., Maynard D.S., Crowther T.W., Frankson P.T., Mohan J.E., Steinrueck C., Veen, G.F., King J.R., Warren II R.J. 2021. Belowground community turnover accelerates the decomposition of standing dead wood. ECOLOGY: 102: e03484.
Keiser, A.D., R.J. Warren II, T. Filley and M.A. Bradford. 2021. Signatures of an abiotic decomposition pathway in temperate forest litter. BIOGEOCHEMISTRY 153: 177-190.
Warren II, R.J., M. Olejniczak, A. Labatore and M. Candeias. 2021. How common and dispersal limited are ant-dispersed plants in eastern deciduous forests? PLANT ECOLOGY 222: 361-373.
Warren II, R.J., S. Noezil and C. Mokadam. 2021. Non-native plants rarely provide suitable habitat for native gall-inducing species. BIODIVERSITY AND CONSERVATION 30: 2797-2805.arren, II, R.J., M. Candeias, A. Labatore, M. Olenjniczak and L. Yang. 2019. Multiple mechanisms in woodland plant species invasion. Jour Plant Ecology 12: 201-209.
Warren II, R.J., A. Mathew, K. Reed, S. Bayba, K. Krupp and D.J. Spiering. 2019. Myrmica rubra microhabitat selection and putative ecological impact. Ecological Entomology 44: 239-248.
Goodman, M. and R.J. Warren II. 2019. Non-native ant invader displaces native ants but facilitates non-predatory invertebrates. Biological Invasions 21: 2713-2722.
Warren II, R.J. and M.A. Bradford. 2020. Non-native Microstegium vimineum populations collapse with fungal leaf spot disease outbreak. Plant Ecology 222: 107-117.
Warren II, R.J., S. Casterline, M. Goodman, M. Kocher, R. Zaluski and J.H. Battaglia. 2019. Long-term lichen trends in a rust belt region. Journal of Urban Ecology 1-7.
Warren II, R.J., M. Candeias, A. Lafferty and L.D. Chick. 2020. Regional-scale environmental resistance to non-native ant invasion. Biol Invasions 22: 813-825.
Warren II, R.J., J.R. King and M.A. Bradford. 2020. Disentangling resource acquisition from interspecific behavioral aggression to understand the ecological dominance of a common, widespread temperate forest ant. Insectes Sociaux 67: 179-187.
Lytle, A.J., J.T. Costa and R.J. Warren II 2020. Invasion and high-elevation acclimation of the red imported fire ant, Solenopsis invicta, in the southern Blue Ridge Escarpment region of North America. PLoS ONE 15: e0232264.
Warren, II, R.J., M. Candeias, A. Labatore, M. Olenjniczak and L. Yang. 2019. Multiple mechanisms in woodland plant species invasion. Jour Plant Ecology 12: 201-209.
Warren II, R.J., A. Mathew, K. Reed, S. Bayba, K. Krupp and D.J. Spiering. 2019. Myrmica rubra microhabitat selection and putative ecological impact. Ecological Entomology 44: 239-248.
Goodman, M. and R.J. Warren II. 2019. Non-native ant invader displaces native ants but facilitates non-predatory invertebrates. Biological Invasions 21: 2713-2722.
Warren II, R.J., K. Reed, A. Mathew, K. Krupp††, M. Goodman†, K. Archibald and D.J. Spiering. 2018. Release from intraspecific competition promotes dominance of a non-native invader. Biological Invasions 21: 895-909.
Warren II, R.J., S. Bayba and K. Krupp. 2018. Interacting effects of urbanization and coastal gradients on ant thermal responses. Journal of Urban Ecology 4: 1.
Warren II, K.J. Elliott, I. Giladi, J.R. King and M.A. Bradford. 2018. Field experiments show contradictory short- and long-term myrmecochorous plant impacts on seed-dispersing ants. Ecological Entomology 44: 30-39.
Tarsa, C.†, A. McMillan, R.J. Warren II. Plant pathogenic fungi decrease in soil inhabited by seed-dispersing ants. 2018. Insectes Sociaux 65: 315-321.
Olejniczak, M.J., D.J. Spiering, D.L. Potts and R.J. Warren II. 2018. Urban forests form isolated archipelagos. Journal of Urban Ecology 4: 1-8.
Pinzone, P. , D. Potts, G. Pettibone, R.J. Warren II. 2018. Do novel weapons that degrade mycorrhizal mutualisms promote species invasion? Plant Ecology 219: 539-548.
King, J.R., R.J. Warren II, D.S. Maynard, M.A. Bradford. 2018. Ants: ecology and impacts in dead wood. In Ulyshen, M.D. Saproxylic “Insects,” Springer. pp. 237-262.
Warren II, R.J., K. Reed, M. Olejniczak and D. Potts. 2018. Rural land use bifurcation in the urban-rural gradient. Urban Ecosystems 21: 1-7.
Cava, Z., A. McMillan, C.M. Pennuto and R.J. Warren II. 2018. Hellbender predation success is influenced by differential native and non-native prey behavior. Journal of Herpetology 52: 162-170.
Shefferson, R.P. et al., Warren II, R.J. 2018. Drivers of vegetative dormancy across herbaceous perennial plant species. Ecology Letters 21: 724-733.
Warren II, R.J., J.R. King, C. Tarsa, B. Haas and J. Henderson. A systematic review of context bias in invasion biology. PLOS ONE e018502
Warren II, R.J., A. Labatore and M. Candeias. Allelopathic invasive tree (Rhamnus cathartica) alters native plant communities. PLANT ECOLOGY 218: 1233-1241
Warren II, R.J., J.P. Love and M.A. Bradford. Nest-mediated seed dispersal. PLANT ECOLOGY 218: 1213-1220.
Warren II, R.J., J.R. King, L.D. Chick and M.A. Bradford. Global change impacts on ant-mediated seed dispersal in Eastern North American forests. In Oliveira, P.S. and S. Koptur, Ant-Plant Interactions: Impacts of Humans on Terrestrial Ecosystems. Cambridge University Press, Cambridge, UK
Warren II, R.J. Ghosts of cultivation past - Native American dispersal legacy persists in tree distribution. PLoS ONE 11: e0150707.
Warren II, R.J., L. Chick, B. DeMarco, A. McMillan, V. De Stefano, R. Gibson, P. Pinzone. Climate-driven range shift prompts species, not gene, replacement. INSECTES SOCIAUX 63: 593-601
Candeias and R.J. Warren II. Rareness starts early for disturbance-dependent grassland plant species. BIODIVERSITY AND CONSERVATION 25: 2771
Labatore, A., D. Spiering, D. Potts and R.J. Warren II. Canopy trees in an urban landscape - sustainable forests or long-lived gardens? URBAN ECOSYSTEMS 20: 393-401
Warren II, R.J. and M.J. Oleniczak. 2016. Hurricane strikes as divine retribution. SKEPTIC MAGAZINE 21: 19-21
Warren II, R.J. S.M. Pearson, S. Henry, K. Rossouw, J.P. Love, M. Olejniczak, M.A. Bradford and K.J. Elliott. Exurban edges cause cryptic effects on biotic interactions. Ecosphere 6: art218.
Grunzweig, L, D. Spiering, A. Labatore and R.J. Warren II. Non-native invader renders suitable habitat unsuitable. Arthropod-Plant Interactions online first.
Warren II, R.J., A. McMillan, J.R. King, L. Chick and M. Bradford. 2015. Forest invader replaces predation but not dispersal services by a keystone species. Biological Invasions 17: 3153-3162.
Warren II, R.J., K. Frothingham and D. Potts. 2015. Stream structural limitations on invasive communities in urban riparian areas. Invasive Plant Science and Management 8: 353-362.
Maynard, D, T. Crowther, J. King, R.J. Warren II and M. Bradford. 2015. Temperate forest termites: ecology, biogeography and ecosystem impacts. Ecological Entomology 199-210.
Oldfield, E., A.J. Felson, N. Auyeung, T.W. Crowther, N. Falxa-Raymond, Y. Harada, D.S. Maynard, N.W. Sokol, R.J. Warren II, R.A. Hallett and M.A. Bradford. 2015. Growing the urban forest: tree performance in response to biotic and abiotic land management Restoration Ecology 23: 707-718.
Fraterrigo, J.M., S. Wagner and R.J. Warren. 2014. Local-scale biotic interactions embedded in macro-scale climate drivers suggest Eltonian noise hypothesis distribution patterns for an invasive grass. Ecology Letters 17: 1447-1454.
Bradford, M.A./R.J. Warren, P. Baldrian, T.W. Crowther, D.S. Maynard, E.E. Oldfield, W.R. Wieder, S.A. Wood and J.R. King. 2014. Climate fails to predict wood decomposition at regional scales. Nature Climate Change 4: 625-630.
Diez, J.M., I. Giladi, R.J. Warren and H.R. Pulliam. 2014. Probabilistic and spatially variable niches inferred from demography. Journal of Ecology 102: 544-554.
Warren, R.J., I. Giladi and M.A. Bradford. 2014. Competition as a mechanism structuring mutualisms. Journal of Ecology 102: 486-495.
Shefferson, R.P., R.J. Warren and H.R. Pulliam. 2014. Life-history costs make perfect sprouting maladaptive in two herbaceous perennials. Journal of Ecology 102: 1318-1328.
Warren, R.J. and I. Giladi. Ant-mediated seed dispersal: a few ant species (Hymenoptera: Formicidae) benefit many plants. Myrmecological News 20: 128-140.
Bradford, M.A. and R.J. Warren 2014. Terrestrial biodiversity and climate change. In Freedman, B. (Ed.) Handbook of Global Environmental Pollution Vol. I, Global Environmental Change. Springer.
King, J.R., R.J. Warren and M.A. Bradford. 2013. Social insects dominate eastern US temperate hardwood forest macroinvertebrate communities in warmer regions. PLoS ONE 8: e75843.
Oldfield, E.E., R.J. Warren, A.J. Felson and M.A. Bradford. 2013. Challenges and future directions in urban afforestation. Journal of Applied Ecology 50: 1169-1177.
Warren, R.J., V. Bahn and M.A. Bradford. 2013. Decoupling litter barrier and soil moisture influence on the establishment of an invasive grass. Plant and Soil 367: 339-346.
Warren, R.J. and M.A. Bradford. 2013. Mutualism fails when climate response differs between interacting species. Global Change Biology 20: 466-474.
Warren, R.J. and L. Chick. 2013. Upward ant distribution shift corresponds with minimum, not maximum, temperature tolerance. Global Change Biology 19: 2082-2088.
Warren, R.J., J.K. Lake. 2013. Trait plasticity, not values, best corresponds with woodland plant success in novel and manipulated habitats. Journal of Plant Ecology 6: 201-210.
Warren, R.J., T. Ursell, A.D. Keiser and M.A. Bradford. 2013. Habitat, dispersal and propagule pressure control exotic infilling within an invaded range. Ecosphere 4: 26.
Bradford, M.A., S.A. Wood, F.T. Maestre, J.F. Reynolds and R.J. Warren. 2012. Contingency in ecosystem but not plant community response to multiple global change factors. New Phytologist 196: 462-471.*
Covey, K.R., S.A. Wood, R.J. Warren, X. Lee and M.A. Bradford. 2012. Elevated methane concentrations in trees of an upland forest. Geophysical Research Letters 39: L15705.*
Jones, J., I. Creed, K. Hatcher, R.J. Warren, et al. 2012. Ecosystem controls on streamflow responses to land-use and climate change at long-term ecological research sites. BioScience 62 390-404.*
Kramer, T.D., R.J. Warren, Y. Tang and M.A. Bradford. 2012. Grass invasions across a regional gradient are associated with declines in belowground carbon pools. Ecosystems 15: 1271-1282.*
Tang, T., R.J. Warren, T.D. Kramer and M.A. Bradford. 2012. Plant invasion impacts on arthropod abundance, diversity and feeding consistent across environmental and geographic gradients. Biological Invasions 14: 2625-2637.*
Warren, R.J., V. Bahn and M.A. Bradford. 2012. The interaction between propagule pressure, habitat suitability and density-dependent reproduction in species invasion. Oikos 121: 874–881.
Warren, R.J. and M.A. Bradford. 2012. Ant colonization and coarse woody debris
decomposition in temperate forests. Insectes Sociaux 59: 215–221
Warren, R.J., I. Giladi and M.A. Bradford. 2012. Environmental heterogeneity and interspecific interactions influence nest occupancy by key seed-dispersing ants. Environmental Entomology 41: 463-468
Sorrells, J. and R.J. Warren 2011. Ant-dispersed herb colonization lags behind forest re-establishment. BULLETIN OF THE TORREY BOTANICAL CLUB 138: 77-84.
Warren, R.J. 2010. An experimental test of well-described vegetation patterns across slope aspects using woodland herb transplants and manipulated abiotic drivers. NEW PHYTOLOGIST 185: 1038-1049.
Warren, R.J., V. Bahn and M.A. Bradford. 2011. Temperature cues phenological synchrony in ant-mediated seed dispersal. GLOBAL CHANGE BIOLOGY 17: 2444-2454.
Warren, R.J., V. Bahn, T. Kramer, Y. Tang and M.A. Bradford. 2011. Performance of an exotic invader across temperate forest gradients: a niche-directed analysis. ECOSPHERE 2: 1-19.
Warren, R.J. and M.A. Bradford. 2011. The shape of things to come: woodland herb niche contraction begins during recruitment in mesic forest microhabitat. PROCEEDINGS OF THE ROYAL SOCIETY B: BIOLOGICAL SCIENCES 278: 1390-1398.
Warren, R.J., McAfee, P. and V. Bahn. 2011. Ecological differentiation among key plant mutualists from a cryptic ant guild. INSECTES SOCIAUX 58: 505-512.
Warren, R.J., D.K. Skelly, O.J. Schmitz and M.A. Bradford. 2011. Universal ecological patterns in college basketball communities. PLOS ONE 6: e17342.
Warren, R.J., J.P. Wright and M.A. Bradford. 2011. The putative niche requirements and landscape dynamics of Microstegium vimineum: an invasive Asian grass BIOLOGICAL INVASIONS 13: 471-483.
Warren, R.J. 2010. A field test of theoretical incident radiation estimations and a simple method for integrating altitude into temperature prediction models. Castanea 75: 67-77.
Warren, R.J. and M.A. Bradford. 2010. Seasonal climate trends, the North Atlantic Oscillation and salamander abundance in the southern Appalachian Mountain region. Journal of Applied Meteorology and Climatology 49: 1597-1603.
Warren, R.J., I. Giladi and M.A. Bradford. 2010. Ant-mediated seed dispersal does not facilitate niche expansion. Journal of Ecology 98: 1178-1185.
Warren, R.J. and E. Mordecai. 2010. Soil moisture mediated interaction between Polygonatum biflorum and leaf spot disease. Plant Ecology 209: 1-9.
Rossell, I.M., K.K. Moorhead and R.J. Warren 2009. Succession of a southern Appalachian mountain wetland six years following hydrologic and microtopographic restoration. Restoration Ecology 17: 205-214.
Warren, R.J. 2009. Mechanisms driving understory evergreen herb distributions across slope aspects – as derived from topographic position. Plant Ecology 198: 297-308.
Warren, R.J., I.M. Rossell and K.K. Moorhead. 2007. Impact of woody vegetation succession upon ground-layer communities in a southern Appalachian wetland. American Midland Naturalist 157: 39-51.
Warren, R.J., I.M. Rossell and K.K. Moorhead. 2004. Colonization and establishment of red maple (Acer rubrum) in a southern Appalachian wetland. Wetlands 24: 364-374.
Warren, R.J., J.D. Pittillo and I.M. Rossell. 2004. Vascular flora of a Southern Appalachian wetland complex. Castanea 69: 116-124.
Warren II, R.J. 2021. Gang science. NATURALMENTE SCIENZA 2: 62-64.
Warren II, R.J. and Jaclyn Chuchanis†. 2020. “The Streat Life of Trees – An Urban Guide.” Buffalo Arts Publishing. Buffalo, NY.
Warren II, R.J. and M.J. Oleniczak††. 2016. Hurricane strikes as divine retribution. SKEPTIC MAGAZINE 21: 19-21.
Felson, A., E. Oldfield, M. Bradford and R.J. Warren. 2014. Constructing native urban forests as experiments to evaluate resilience. SCENARIO JOURNAL 4: BUILDING THE URBAN FOREST (http://scenariojournal.com/article/forests-as-experiments).