Publications
Peer Reviewed Journal Articles
Sambaraju, K. R., V. Srivastava, B. S. Barker, M. A. Keena, M. D. Ormsby, and A. L. Carroll. 2024. Editorial: Forest insect invasions – risk mapping approaches and applications. Frontiers in Insect Science. 4:1378061. [article]
Barker, B. S., and L. Coop. 2024. Phenological mapping of invasive insects: decision support for surveillance and management. Insects 15:6. [article]
Barker, B. S., L. Coop, J. J. Duan, and T. R. Petrice. 2023. An integrative phenology and climatic suitability model for emerald ash borer. Frontiers in Insect Science 3:1239173. [article] [NW RISCC summary]
Barker, B. S., L. Coop, and C. Hong. 2022. Potential distribution of invasive boxwood blight pathogen (Calonectria pseudonaviculata) as predicted by process-based and correlative models. Biology 11:849. [article]
Grevstad, F. S., T. Wepprich, B. S. Barker, L. B. Coop, R. Shaw, and R. S. Bourchier. 2022. Combining photoperiod and thermal responses to predict phenological mismatch for introduced insects. Ecological Applications 32:e2557. [abstract]
Barker, B. S., L. Coop, T. Wepprich, F. Grevstad, and G. Cook. 2020. DDRP: real-time phenology and climatic suitability modeling of invasive insects. PLoS ONE 15:e0244005. [article]
Barker, B. S., D. S. Pilliod, M. Rigge, and C. G. Homer. 2019. Pre-fire vegetation drives post-fire outcomes in sagebrush ecosystems: evidence from field and remote sensing data. Ecosphere 10:e02929. [article]
Braasch, J. E, B. S. Barker, and K. M. Dlugosch. 2019. Effective population size variation during invasion of Centaurea solstitialis. Molecular Ecology 28:2546‒2558. [abstract]
Barker, B. S., J. E. Cocio, S. R. Anderson, J. E. Braasch, F. E. Cang, H. D. Gillette, and K. M. Dlugosch. 2018. Potential limits to the benefits of admixture during biological invasion. Molecular Ecology 28:100−113. [PMC manuscript]
Barker, B. S., D. S. Pilliod, J. Welty, R. S. Arkle, M. G. Karl, and G. R. Toevs. 2018. An introduction and practical guide to use of the Soil-Vegetation Inventory Method (SVIM) data. Rangeland Ecology & Management 71:671−680. [article]
Barker, B. S., and J. A. Rodríguez-Robles. 2017. Origins of introduced populations of the Puerto Rican Coquí, Eleutherodactylus antillensis, in Saint Croix and Panamá. [PMC manuscript]
Barker, B. S., K. Andonian, S. M. Swope, D. Luster, and K. M. Dlugosch. 2017. Population genomic analyses reveal a history of range expansion and trait evolution across the native and invaded range of yellow starthistle (Centaurea solstitialis). Molecular Ecology 26:1131−1147. [PMC manuscript]
Dlugosch, K. M., F. E. Cang, B. S. Barker, K. Andonian, S. M. Swope, and L. H. Rieseberg. 2015. Evolution of invasiveness through increased resource use in a vacant niche. Nature Plants 1:15066. [PMC manuscript]
Barker, B. S., J. A. Rodríguez-Robles, and J. A. Cook. 2015. Climate as a driver of tropical insular diversity: comparative phylogeography of two ecologically distinctive frogs in Puerto Rico. Ecography 38:769−781. [PMC manuscript]
Barker, B. S., and A. Ríos-Franceschi. 2014. Population declines of Mountain Coquí (Eleutherodactylus portoricensis) in the Cordillera Central of Puerto Rico. Herpetological Conservation Biology 9:578−589. [pdf]
Barker, B. S., J. A. Rodríguez-Robles, V. S. Aran, A. Montoya, R. B. Waide, and J. A. Cook. 2012. The role of sea-level fluctuations and topography in generating island diversity: phylogeography of the Puerto Rican Red-eyed Coquí, Eleutherodactylus antillensis. Molecular Ecology 21:6033−6052. [abstract]
Barker, B. S., R. B. Waide, and J. A. Cook. 2011. Deep intra-island divergence of a montane forest endemic in the Caribbean: phylogeography of the Puerto Rican frog Eleutherodactylus portoricensis (Anura: Eleutherodactylidae). Journal of Biogeography 38:2311−2325. [abstract]
Barker, B. S., and Y. E. Sawyer. 2011. Aspidoscelis tessalatus (Common Checkered Whiptail) and Salvadora hexalepis deserticola (Big Bend Patch-nosed Snake). Herpetological Review 42:304.
Barker, B. S., P. C. Phillips, and S. J. Arnold. 2010. A test of the conjecture that G-matrices are more stable than B-matrices. Evolution 64:2601−2613. [abstract]
Barker, B. S., R. W. Henderson, and R. Powell. 2009. Geographic distribution. Epicrates monensis granti. Herpetological Review 40:455−456.
Book Chapters
Crimmins, T. M., B. S. Barker, D. D. Bergl, S. Brewer, K. de Beurs, S. Jones, T. Long, E. Mohl, E. Oschrin, A. D. Richardson, T. Schriever, J. Walker, and T. M. Williams. 2024. Phenology in higher education. Pages TBD in Schwartz, M. D., editor. Phenology: An Integrative Environmental Science (3rd edition). Springer, Netherlands. In press.
Bowers, J. H., J. R. Malayer, B. Martínez-López, J. LaForest, C. T. Bargeron, A. D. Neeley, L. B. Coop, B. S. Barker, A. J. Mastin, S. R. Parnell, A. A. Cosse, B. J. McCluskey, S. C. Isard, and J. M. Russo. 2022. Surveillance for early detection of high-consequence pests and pathogens. Pages 120−177 in K. F. Cardwell and K. L. Bailey, editors. Tactical Sciences for Biosecurity of Animal and Plant Systems. IGI Global, Hershey, Pennsylvania, USA. [chapter preview]
Coop, L., and B. S. Barker. 2020. Advances in understanding species ecology: phenological and life cycle modeling of insect pests. Pages 43−96 in M. Kogan and L. Higley, editors. Integrated Management of Insect Pests: Current and Future Developments. Burleigh Dodds Science Publishing, Sawston, England. [book ]
Peer Reviewed Extension Articles
Coop, L., B. S. Barker, and M. Ragozzino. 2024. Integrated Pest Management: Biological Control. Pages N2−N7 in C. Hollingsworth, editor. 2024 Pacific Northwest Insect Management Handbook. Oregon State University Extension and Experiment Station Communications. Updated Annually. [article]
Technical White Papers
See the home page and directory for DDRP for technical reports that describe the development of DDRP models for 10 invasive insects that threaten U.S. agricultural production
Trade/Industry Journal Articles
Barker, B. S., and L. Coop. 2024. Boxwood Blight: New Tools to Forecast Infection Risk in Pacific Northwest Nurseries. Digger. June 2024, pp. 41−45. [article]
Crimmins, T., E. E. Posthumus, A. Rosemartin, B. S. Barker, and L. Coop. 2023. Enhanced Forecasts of Emerald Ash Borer Activity. City Trees, July/Aug 2023, pp. 12−13. [article]
Recent Presentations (Available Online)
Barker, B. S. 2024. Forecasting phenology and establishment risk of invasive species to support early detection. Invasive Pest Mini-Conference, College of Tropical Agriculture and Human Resources, University of Hawaii, Apr. 24, 2024. Online. [recording]
Barker, B. S. 2024. Modeling emerald ash borer phenology under climate change. Oral presentation at the monthly IPM Happy Hour seminar series, Western Region IPM Center, Feb. 2, 2024. Online. [recording]
Barker, B. S. 2023. Real-time forecasts of phenology and climate suitability for invasive species. Presentation at the 2023 Northwest RISCC Symposium, "Breaking down barriers between science and application" session, Online. [recording of session]
Barker, B. S. 2023. Real-time forecasts of phenology and climate suitability for emerald ash borer. Webinar for EAB University (Apr. 13, 2023), Online. [recording][slides]
Coop, L., B. S. Barker, and C. Hong. 2022. Integrating short and long term risk models for boxwood blight. Poster presentation at the 10th International IPM Symposium (Feb. 2, 2022), Denver, CO. [poster pdf]
Barker, B. S., L. Coop, and T. Crimmins. 2022. DDRP: a modeling tool to guide decision making for pest surveillance and management. Poster presentation at the 10th International IPM Symposium (Feb. 2, 2022), Denver, CO. [poster pdf]
Barker, B. S., L. Loop, and T. Crimmins. 2022. Expanding a spatial modeling platform with emphasis on invasive insects, plant diseases, and weeds. Oral presentation at the annual Pacific Northwest Insect Management Conference (Jan. 10, 2022), Online. [research report]
Barker, B. S. 2021. Modeling pest distributions, phenology, and population dynamics to safeguard US agricultural lands. Seminar for the Dept. of Crop and Soil Science, Oregon State University (Oct. 25, 2021), Corvallis, OR. [recording][slides]
Barker, B. S., L. Coop, and C. Hong. 2021. Risk modeling to predict outbreaks and establishment of invasive plant pathogens: a case study of boxwood blight. Poster presented at the annual Ecological Society of America meeting (Aug. 5, 2021), Online. [poster pdf]
Barker, B. S. 2019. Modelling climate suitability and phenology to safeguard U.S. agricultural and natural resources from invasive pests. Horticulture Dept. Seminar (Nov. 12, 2019). Corvallis, OR. [recording]
Coop, L. B., B. S. Barker, T. Wepprich, and F. Grevstad. 2019. DDRP: Modeling Degree-Days, Risk of Establishment, and Phenological Event Maps. Poster presented at the annual Pacific Branch ESA Meeting (Apr. 2, 2019), San Diego, CA. [poster pdf]
Barker, B. S. 2019. Modelling climate suitability and phenology to safeguard U.S. agricultural and natural resources from invasive pests. Lightning talk presented at Cascadia R Conference (Nov. 12, 2019), Corvallis, OR. [slides]