Eric J. Ward

Eric J. Ward

Statistician @ NWFSC, Affiliate professor at UW (SAFS)

Publications (peer-reviewed)

  1. Ettinger, A., C. Harvey, J. Samhouri, C.K. Emmons, M.B. Hanson, E.J. Ward, and J. Olson. 2021. Shifting phenology of an endangered apex predator tracks changes in its favored prey. Endangered Species Research

  2. Scheuerell, M., E.J. Ward, and S.L. Katz. 2021. Using replicate sampling and informative priors to improve estimates of species interaction strengths from time series data. Limnology and Oceanography Letters

  3. Schwoerer, T., R. Dial, J. Little, A. Martin, J. Morton, J. Schmidt, and E.J. Ward. 2021. Flight plan for the future: floatplane pilots and researchers team up to predict invasive species dispersal in alaska. Biological Invasions

  4. Feddern, M., E.J. Ward, A. Warlick, and G. Holtgrieve. 2021. Recent divergent changes in alaskan pinniped trophic position detected using compound- specific stable isotope analysis. Marine Ecology Progress Series

  5. Hunsicker, M., E.J. Ward, M. Litzow, S. Anderson, C. Harvey, J. Field, J. Gao, M. Jacox, S. Melin, A. Thompson, and P. Warzybok. 2021. Tracking and forecasting community responses to climate perturbations in the california current ecosystem

  6. Jannot, J.E., E.J. Ward, K.A. Somers, B.E. Feist, T.P. Good, D. Lawson, and J.V. Carretta. 2021. Using Bayesian models to estimate humpback whale entanglements in the united states west coast sablefish pot fishery. Frontiers in Marine Science, 8:1595 link

  7. Ohlberger, J., E.J. Ward, R. Brenner, M. Hunsicker, S. Haught, D. Finnoff, M. Litzow, T. Schwoerer, G. Ruggerone, and C. Hauri. 2021. Non-stationary and interactive effects of climate and competition on pink salmon productivity. Global Change Biology

  8. Ward, E.J., S. Anderson, M. Hunsicker, and M. Litzow. 2021. Smoothed dynamic factor analysis for identifying trends in multivariate time series. Methods in Ecology and Evolution

  9. Commander, C., L.B. Barnett, E.J. Ward, S.C. Anderson, and T.E. Essington. 2021. The shadow model: how and why small choices in dynamic species distribution models affect predictions

  10. English, P., E.J. Ward, C.N. Rooper, R.E. Forrest, L.A. Rogers, K.L. Hunter, A.M. Edwards, B.M. Connors, and S.C. Anderson. 2021. Contrasting climate velocity impacts in warm and cool locations: a meta-analysis across 38 demersal fish species in the northeast pacific. Fish and Fisheries

  11. Waples, R.S., R.K. Waples, and E.J. Ward. 2021. Pseudoreplication in genomicsscale datasets. Molecular Ecology Resources, link.

  12. Stewart, J.D., J.W. Durban, H. Fearnbach, L.G. Barrett-Lennard, P.K. Casler, E.J. Ward, and D.R. Dapp. 2021. Survival of the fattest: linking body condition to prey availability and survivorship of killer whales. Ecosphere, 12:e03660 link

  13. Jefferson, T.A., M.A. Smultea, E.J. Ward, and B. Berejikian. 2021. Harbor seals (Phoca vitulina richardii) in the inland waters of Washington State: a novel approach to stock size estimation. PLOS ONE, 16:e0241254. link

  14. Shelton, A.O., G.H. Sullaway, B.E. Feist, E.J. Ward, K.A. Somers, V.J. Tuttle, J.T. Watson, and W.H. Satterthwaite. 2021. Redistribution of salmon populations in the Northeast Pacific Ocean in response to climate. Fish and Fisheries, 22:503–517. link

  15. Barnett, L.A., S. Anderson, and E.J. Ward. 2021. Improving estimates of species distribution change by incorporating local trends. Ecography, 44:427-439. link

  16. Feddern, M.L., G.W. Holtgrieve, and E.J. Ward. 2021. Stable isotope signatures in historic harbor seal bone link food web-assimilated carbon and nitrogen resources to a century of environmental change. Global Change Biology, 27:2328–2342. link

  17. Essington, T., E.J. Ward, T.B. Francis, C. Greene, L. Kuehne, and D. Lowry. 2021. Historical reconstruction of the Puget Sound (Usa) groundfish community. Marine Ecology Progress Series, 657:173–189. link

  18. Holt, M.M., J.B. Tennessen, E.J. Ward, M.B. Hanson, C.E. Emmons, D.A. Giles, and J.T. Hogan. 2021. Effects of vessel distance and sex on the behavior of endangered killer whales. Frontiers in Marince Science, 7:1211. link

  19. Litzow, M.A., M.J. Malick, N.A. Bond, C.J. Cunningham, J.L. Gosselin, and E.J. Ward. 2020. Quantifying a novel climate through changes in Pdo-climate and PDO-salmon relationships. Geophysical Research Letters, 47:e2020GL087972. link

  20. Litzow, M., M.E. Hunsicker, E.J. Ward, S.C. Anderson, J. Gao, S. Zador, S. Batten, S. Dressel, J. Duffy-Anderson, E. Fergusson, R. Hopcroft, B. Laurel, and R. O’Malley. 2020. Evaluating ecosystem change as Gulf of Alaska temperature exceeds the limits of preindustrial variability. Progress in Oceanography, 186:102393. link

  21. Warlick, A.J., G.M. Ylitalo, S.M. O’Neill, M.B. Hanson, C. Emmons, and E.J. Ward. 2020. Using Bayesian stable isotope mixing models and generalized additive models to resolve diet changes for fish eating killer whales (Orcinus orca). Marine Ecology Progress Series, 649:189-200. link

  22. Litzow, M.A., M.E. Hunsicker, N.A. Bond, B.J. Burke, C.J. Cunningham, J.L. Gosselin, E.L. Norton, E.J. Ward, and S.G. Zador. 2020. The changing physical and ecological meanings of north pacific ocean climate indices. Proceedings of the National Academy of Sciences, link

  23. Chasco, B., J.T. Thorson, S. Heppell, L. Avens, J. Braun-McNeill, A.B. Bolten, K.A. Bjorndal, and E.J. Ward. 2020. Estimating growth and ages for species with incomplete ageing histories: a case study for loggerhead sea turtle (Caretta caretta) using an integrated mixed-effect model. Marine Ecology Progress Series, 636:221-234 link

  24. Barnett, L., E.J. Ward, J.E. Jannot, and A.O. Shelton. 2019. Dynamic spatial heterogeneity reveals interdependence of marine faunal density and fishery removals. Ecological Indicators, 107 link

  25. Ohlberger, J., D.E. Schindler, E.J. Ward, T.E. Walsworth, and T.E. Essington. 2019. Resurgence of an apex marine predator and the decline in prey body size. Proceedings of the National Academy of Sciences, 116:26682–26689 link

  26. Tennessen, J.B., M.M. Holt, E.J. Ward, M.B. Hanson, C.K. Emmons, D.A. Giles, and J.T. Hogan. 2019. Hidden Markov models reveal temporal patterns and sex differences in killer whale behavior. Scientific Reports, 9:14951 link

  27. Ward, E.J., S.C. Anderson, L.A. Damiano, M.E. Hunsicker, and M.A. Litzow. 2019. Modeling regimes with extremes: the bayesdfa package for identifying and forecasting common trends and anomalies in multivariate time-series data. The R Journal, 11:46-55 link

  28. Deacy, W.W., W.B. Leacock, E.J. Ward, and J.B. Armstrong. 2019. Aerial surveys cause large but ephemeral decreases in bear presence at salmon streams in Kodiak, Alaska. PLOS ONE, 14:1-17 link

  29. Nelson, B.W., A.O. Shelton, J.H. Anderson, M.J. Ford, and E.J. Ward 2019. Ecological implications of changing hatchery practices for Chinook salmon in the Salish Sea. Ecosphere, 10:e02922 link

  30. Gonzalez, S., J.K. Horne, E.J. Ward. 2019. Temporal variability in pelagic biomass distributions at wave and tidal sites and implications for standardization of biological monitoring International Marine Energy Journal

  31. Beaudreau, A.H., E.J. Ward, R.E. Brenner, A.O. Shelton, J.T. Watson, J.C. Womack, S.C. Anderson, A.C. Haynie, K.N. Marshall, and B.C. Williams. 2019. Thirty years of change and the future of alaskan fisheries: shifts in fishing participation and diversification in response to environmental, regulatory, and economic pressures. Fish and Fisheries

  32. Marshall, K.N., J. Duffy-Anderson, E.J. Ward, S.C. Anderson, M.E. Hunsicker, and B.C. Williams. 2019. Long-term trends in ichthyoplankton assemblage structure, biodiversity, and synchrony in the Gulf of Alaska and their relationships to ocean conditions. Progress in Oceanography, 170:134-145. link

  33. Ward, E.J., H. Delgado-Nordmann, R. Brenner, A.H Beaudreau, S.D. Moffitt, A.O Shelton. 2019. Assessing long-term changes in sex ratios of Pacific herring in Prince William Sound, Alaska. Fisheries Research, 211:300-308. link

  34. Stock, B.C., E.J. Ward, T. Eguchi, J.E. Jannot, J.T. Thorson, B.E. Feist, and B.X. Semmens. Comparing predictions of fisheries bycatch using multiple spatiotemporal species distribution model frameworks. Canadian Journal of Fisheries and Aquatic Sciences, in press.

  35. Stock, B.C., E.J. Ward, J.T. Thorson, J.E. Jannot, and B.X. Semmens. 2019. The utility of spatial model-based estimators of unobserved bycatch, ICES Journal of Marine Science, 76:255–267. link

  36. J. Ohlberger, E.J. Ward, D.E. Schindler and B. Lewis. 2018. Demographic changes in Chinook salmon across the Northeast Pacific Ocean. Fish and Fisheries, 19(3):533-546. link

  37. E.J. Ward, S.C. Anderson, A.O. Shelton, R.E. Brenner, M.D. Adkison, A.H. Beaudreau, J.T. Watson, J.C. Shriver, A.C. Haynie, and B.C. Wiliams. 2018. Effects of increased specialization on revenue of Alaskan salmon fishers over four decades. Journal of Applied Ecology, 55:1082-1091. link

  38. Ford, M.J., K.M. Parsons, E.J. Ward, J.A. Hempelmann, C.K. Emmons, M.B. Hanson, K.C. Balcomb, and L.K. Park. Inbreeding in an endangered killer whale population. Animal Conservation, 21:423-432. link

  39. Ward, E.J., K.L. Oken, K.A. Rose, S. Sable, K. Watkins, E.E. Holmes, and M.D. Scheuerell. Applying spatiotemporal models to monitoring data to quantify fish population responses to the Deepwater Horizon oil spill in the Gulf of Mexico, Environmental Monitoring and Assessment, 190(9):530. link

  40. Anderson, S.C., and E.J. Ward. In press. Black swans in space: modelling spatiotemporal processes with extremes. Ecology, 100(1):e02403 link

  41. Stock, B.C., A.L. Jackson, E.J. Ward, A.C. Parnell, D.L. Phillips, and B.X. Semmens. Analyzing mixing systems using a new generation of Bayesian tracer mixing models. Peer J, 6:e5096. link

  42. Bal, G., M.D. Scheuerell, and E.J. Ward. Characterizing the strength of density dependence in at-risk species through Bayesian model averaging. Ecological Modelling, 381:1-9. link

  43. Shelton, A.O., W.H. Satterthwaite, E.J. Ward, B.E. Feist, and B.J. Burke. 2018. Using hierarchical models to estimate stock-specific and seasonal variation in ocean distribution, survivorship, and aggregate abundance of fall run chinook salmon. Canadian Journal of Fisheries and Aquatic Sciences, 76:95-108. link

  44. Shelton, A.O., M.E. Hunsicker, E.J. Ward, B.E. Feist, R. Blake, C.L. Ward, B.C. Williams, J.T. Duffy-Anderson, A.B. Hollowed, A.C. Haynie. 2018. Spatio-temporal models reveal subtle changes to demersal communities following the Exxon Valdez oil spill. ICES Journal of Marine Science, 75:287-297. link

  45. Chasco, B.E., I.C. Kaplan, A.C. Thomas, A. Acevedo-Gutiérrez, D.P. Noren, M.J. Ford, M.B. Hanson, J. Scordino, S. Jeffries, K.N. Marshall, A.O. Shelton, C. Matkin, B. Burke, and E.J. Ward. Competing tradeoffs between increasing marine mammal predation and fisheries harvest of Chinook salmon. Scientific Reports, 7:15439. link

  46. Deacy, W.W., J.B. Armstrong, W.B Leacock, C. Robbins, D.D. Gustine, E.J. Ward, J.A. Erlenbach, J.A. Stanford. 2017. Phenological synchronization disrupts a keystone trophic interaction between Kodiak brown bears and salmon. PNAS, 114(39): 10432–10437. link

  47. Anderson, S.C., E.J. Ward, A.O. Shelton, M.D. Adkison, A.H. Beaudreau, R.E. Brenner, A.C. Haynie, J.C. Shriver, J.T. Watson, and B.C. Williams. Benefits and risks of diversification for individual fishers. PNAS, 114(40): 10797–10802. link

  48. Linder, H, J.K. Horne, and E.J. Ward. 2017. Modeling baseline conditions of ecological indicators: marine renewable energy environmental monitoring ecological indicators. Ecological Indicators, 83:178-191. link

  49. Ward, E.J., M. Adkison, J. Couture, S.C. Dressel, M.A. Litzow, S. Moffitt, T. Hoem Neher, J. Trochta, and R. Brenner. 2017. Evaluating signals of oil spill impacts, climate, and species interactions in Pacific herring and Pacific salmon populations in Prince William Sound and Copper River, Alaska. PLOS ONE, 12(3): e0172898.

  50. Hussey, N., J. DiBattista, J. Moore, E.J. Ward, A. Fisk, S. Kessel, T. Guttridge, K. Feldheim, B. Franks, S. Gruber, O. Weideli, and D. Chapman. 2017. Risky business for a marine predator? Testing the influence of foraging strategies on size and growth rate under natural conditions. Proceedings of the Royal Societety Series B, 284(1852): 20170166.

  51. Chasco, B., I.C. Kaplan, A. Thomas, A. Acevedo-Gutiérrez, D.P. Noren, M.J. Ford, M.B. Hanson, J. Scordino, S.J. Jeffries, S.F. Pearson, K.N. Marshall, and E.J. Ward. 2017. Estimates of Chinook salmon consumption in Washingon State inland waters by four marine mammal predators from 1970 – 2015. Canadian Journal of Fisheries and Aquatic Sciences, 74: 1173-1194.

  52. Moriarty, P., T.E. Essington, and E.J. Ward. 2017. A novel method to estimate prey contributions to predator diets. Canadian Journal of Fisheries and Aquatic Sciences, 74: 168-177. link

  53. Armstrong, J.B., E.J. Ward, D.E. Schindler, and P.J. Lisi. 2016. Adaptive capacity at the northern front: sockeye salmon behaviorally thermoregulate during novel exposure to warm temperatures. Conservation Physiology, 4(1): cow039. link

  54. Boyd, C., D.P. DeMaster, R.S. Waples, E.J. Ward, and B.L. Taylor. 2016. Consistent Extinction Risk Assessment under the U.S. Endangered Species Act. Conservation Letters, 10(3): 328-336. link

  55. Stier, A.C., J.F. Samhouri, M. Novak, K.N. Marshall, E.J. Ward, R.D. Holt, and P.S. Levin. Ecosystem context and historical contingency in apex predator recoveries. Science Advances, 5(2): e1501769. link

  56. Adams, J.B., I.C. Kaplan, B. Chasco, K.N. Marshall, A. Acevedo-Gutiérrez, and E.J. Ward. 2016. A century of Chinook salmon consumption by marine mammal predators in the Northeast Pacific Ocean. Ecological Informatics, 34: 44-51. link

  57. Thorson, J.T., M.L. Pinsky, and E.J. Ward. 2016. Model-based inference for estimating shifts in species distribution, area occupied, and center of gravity. Methods in Ecology and Evolution, 7: 990-1002. link

  58. Jorgensen, J.C., E.J. Ward, M.D. Scheuerell, and R.W. Zabel. 2016. Assessing spatial covariance among time series of abundance. Ecology and Evolution, 6: 2472–2485. link

  59. Ward, E.J., M.E. Dahlheim, J.M. Waite, C.K. Emmons, K.N. Marshall, B.E. Chasco, K.C. Balcomb III. 2016. Long distance migration of prey synchronizes demographic rates of top predators across broad spatial scales. Ecosphere, 7(2): e01276. link

  60. Ono, K., A.O. Shelton, E.J. Ward, J.T. Thorson, B.E. Feist, and R. Hilborn. 2016. Space-time investigation of the effects of fishing on fish populations. Ecological Applications, 26(2): 392-406. link

  61. Marshall, K.N., A.C. Stier, J.F. Samhouri, R.P. Kelly, and E.J. Ward. 2016. Conservation challenges of predator recovery. Conservation Letters, 9: 70-78. link

  62. Galloway, A.W.E., M.T. Brett, G.W. Holtgrieve, E.J. Ward, A.P. Ballantyne, C.W. Burns, M.J. Kainz, D.C. Muller-Navarra, J. Persson, J.L. Ravet, U. Strandberg, S.J. Taipale. 2015. A Fatty acid based Bayesian approach for inferring diet in aquatic consumers. PLoS ONE, 10(6): e0129723. link

  63. P.A.H. Westley, A.H. Dittman, E.J. Ward, and T. Quinn. 2015. Signals of climate, conspecific density, and watershed features in patterns of homing and dispersal by Pacific salmon. Ecology, 96: 2823–2833. link

  64. Ward, E.J., Y.W. Lee, K. Ono, A.O. Shelton, and J.T. Thorson. 2015. Using spatiotemporal species distribution models to identify temporally evolving hotspots of species co-occurrence. Ecological Applications, 25: 2198-2209. link

  65. Bjorkland, R.K., S. Pearson, S. Jeffries, M. Lance, A. Acevedo-Gutierrez, and E.J. Ward. 2015. Stable isotope mixing models elucidate sex and size effects on the diet of a generalist marine predator. Marine Ecology Progress Series, 526: 213-225. link

  66. Ward, E.J., J.H. Anderson, T.J. Beechie, G.R. Pess, and M.J. Ford. 2015. Increasing hydrologic variability threatens depleted anadromous fish populations. Global Change Biology, 21: 2500-2509. link

  67. Sergeant, C.J., J.B. Armstrong, and E.J. Ward. 2015. Predator-prey migration phenologies remain synchronised in a warming catchment. Freshwater Biology, 60: 724-732. link

  68. Thorson, J.T., A.O. Shelton, E.J. Ward, and H. Skaug. 2015. Geostatistical delta-generalized linear mixed models improve precision for estimated abundance indices for West Coast groundfishes. ICES Journal of Marine Science, 72: 1297-1310. link

  69. Ward, E.J., K.N. Marshall, A. Sedgley, T. Ross, T. Hass, S.F. Pearson, G. Joyce, N.J. Hamel, P.J. Hodum, R. Faucett. 2015. Using citizen-science data to identify local hotspots of seabird occurrence. PeerJ, 2: e704. link

  70. Thorson, J.T., H. Skaug, K. Kristensen, A.O. Shelton, E.J. Ward, J. Harms, and J. Benante. 2015. The importance of spatial models for estimating the type and strength of density dependence. Ecology, 96: 1202–1212. link

  71. Thorson, J.T., J.M. Cope, K.M. Kleisner, J.F. Samhouri, A.O. Shelton, and E.J. Ward. 2015. Giants’ shoulders 15 years later: Lessons, challenges, and guidelines in fisheries meta-analysis. Fish and Fisheries, 16: 342-361. link

  72. Phillips, D.L., R. Inger, S. Bearhop, A.L. Jackson, J.W. Moore, A.C. Parnell, B.X. Semmens, and E.J. Ward. 2014. Best practices for use of stable isotope mixing models in food-web studies. Canadian Journal of Zoology, 92: 823-835. link

  73. Anlauf-Dunn, K., E.J. Ward, and M. Strickland. 2014. Habitat connectivity, complexity and quality: Predicting adult coho salmon occupancy and abundance. Canadian Journal of Fisheries and Aquatic Sciences, 71: 1864-1876. link

  74. Chasco, B., E.J. Ward, C. Rabe, R. Orme, R. Kinzer, J. Vogel, J. Hesse, P. Kucera. 2014. Evaluating the accuracy and precision of multiple abundance estimators using state-space models: a case study for a threatened population of Chinook salmon in Johnson Creek, Idaho. North American Journal of Fisheries Management, 34(5): 945-954. link

  75. Shelton, A.O., J.T. Thorson, E.J. Ward, and B.E. Feist. 2014. Spatial semi-parametric models improve estimates of species abundance and distribution. Canadian Journal of Fisheries and Aquatic Sciences, 71: 1655-1666. link

  76. Ward, E.J., E.E. Holmes, J.T. Thorson, and B. Collen. 2014. Complexity is costly: a meta-analysis of parametric and non-parametric methods for short-term population forecasting. Oikos, 123(6): 652-661. Selected for Editor’s Choice June 2014. link

  77. J.T. Thorson and E.J. Ward. 2014. Accounting for vessel effects when standardizing catch rates from cooperative surveys. Fisheries Research, 155: 168-176. link

  78. Nosrati, K., G. Govers, B.X. Semmens, and E.J. Ward. 2014. A mixing model to incorporate uncertainty in sediment fingerprinting. Geoderma, 217/218: 173–180. link

  79. Bodey, T., E.J. Ward, R.A. Phillips, R.A.R. McGill, and S. Bearhop. 2014. Species versus guild level differentiation revealed across the annual cycle by isotopic niche examination. Journal of Animal Ecology, 83: 470-478. link

  80. Hampton, S.E., E.E. Holmes, D.E. Pendleton, L.P. Scheef, M.D. Scheuerell, and E.J. Ward. 2013. Quantifying effects of abiotic and biotic drivers on community dynamics with multivariate autoregressive (MAR) models. Ecology, 94(12): 2663–2669. Recommended by Faculty of 1000 Biology link

  81. B.X. Semmens, E.J. Ward, A.C. Parnell, D.L. Phillips, S. Bearhop, R. Inger, A.L. Jackson, and J.W. Moore. 2013. Statistical basis and outputs of stable isotope mixing models: Comment on Fry 2013. Marine Ecology Progress Series, 490: 285-289. link

  82. M.B. Hanson, C. Emmons, E.J. Ward, J. Nystuen, and M. Lammers. 2013. Assessing the coastal occurrence of endangered killer whales using autonomous passive acoustic recorders. Journal of the Acoustical Society of America, 134(5): 3486-3495. link

  83. Parnell, A.C., D.L. Phillips, S. Bearhop, A.L. Jackson, B.X. Semmens, E.J. Ward, J.W. Moore, and R.L. Inger. 2013. Bayesian Stable Isotope Mixing Models. Environmetrics, 24(6): 387-399. link

  84. Thorson, J.T. and E.J. Ward. 2013. Accounting for space-time interactions in index standardization models. Fisheries Research, 147: 426-433. link

  85. Holtgrieve, G.W., M.E. Arias, K.N. Irvine, E.J. Ward, M. Kummu, J. Koponen, and J.E. Richey. 2013. Patterns of ecosystem metabolism in the Tonle Sap Lake, Cambodia with links to capture fisheries. PLoS One, 8(8):e71395, 1-11. link

  86. Van Daele, M.B., B.X. Semmens, E.J. Ward, L.J. Van Daele, W.B. Leacock, C.T. Robbins. 2013. Salmon consumption by Kodiak brown bears (Ursus arctos middendorffi) with ecosystem management implications. Canadian Journal of Zoology, 91: 164-174. link

  87. Westley, P., E.J. Ward, and I. Fleming. 2013. Fine-scale local adaptation in an invasive freshwater fish has evolved in contemporary time. Proceedings of the Royal Society, Series B., 280(751). link

  88. Ward, E.J., G.R. Pess, K. Anlauf-Dunn, and C.E. Jordan. 2012. Applying time series models with spatial correlation to identify the scale of variation in habitat metrics related to threatened coho salmon (Oncorhynchus kisutch) in the Pacific Northwest. Canadian Journal of Fisheries and Aquatic Sciences, 69(11): 1773-1782. link

  89. Ward, E.J., P.S. Levin, M.M. Lance, S.J. Jeffries, and A. Acevedo-Gutiérrez. 2012. Integrating diet and movement data to identify hot spots of predation risk and areas of conservation concern for endangered species. Conservation Letters, 5(1): 27-37 dpi: 10.1111/j.1755- 263X.2011.00210.x. link

  90. Holmes, E.E., E.J. Ward, and K. Wills. 2012. MARSS: multivariate autoregressive state-space models for analyzing time series data. R Journal, 4(1): 11-19. link

  91. Pattengill-Semmens, C.V., B.X. Semmens, E.E. Holmes, E.J. Ward, and B.I. Ruttenberg. Integrating time-series of community monitoring data. Proceedings of the 63rd Gulf and Caribbean Fisheries Institute, 214-216. link

  92. Holtgrieve, G., D.E. Schindler, W.O. Hobbs, P.R. Leavitt, E.J. Ward, L. Bunting, G. Chen, B.P. Finney, I. Gregory-Eaves, S. Holmgren, M.J. Lisac, P.J. Lisi, K. Nydick, L.A. Rogers, J.E. Saros, D.T. Selbie, M.D. Shapley, P.B. Walsh, and A.P. Wolfe. 2011. A coherent signature of anthropogenic nitrogen deposition to remote watersheds of the Northern Hemisphere. Science, 16: 1545-1548. doi: 10.1126/science.1212267. link

  93. Yeakel, J.D., M. Novak, P.R. Guimarães Jr., N.J. Dominy, P.L. Koch, E.J. Ward, J.W. Moore, and B.X. Semmens. 2011. Merging resource availability with isotope mixing models: the role of neutral interaction assumptions. PLoS ONE, 6(7): e22015. link

  94. Anderson, J., E.J. Ward, and S.M. Carlson. 2011. A model for estimating the minimum number of offspring to sample in studies of reproductive success. Journal of Heredity, 102(5): 567-576. link

  95. Berntson, E.A., R.W. Carmichael, M.W. Flesher, E.J. Ward, and P. Moran. 2011. Diminished reproductive success of steelhead from a hatchery supplementation program (Little Sheep Creek, Imnaha Basin, Oregon). Transactions of the American Fisheries Society, 140(3): 685-698. link

  96. Francis, T.B., D.E. Schindler, G.W. Holtgrieve, E. Larson, M.D. Scheuerell, B.X. Semmens, and E.J. Ward. 2011. Habitat structure determines resource use by zooplankton in temperate lakes. Ecology Letters, 14: 364-372. link

  97. Ward, E.J., Semmens, B.X., Phillips, D.L., Moore, J.W., and Bouwes, N. 2011. A quantitative approach to combine sources in stable isotope mixing models. Ecosphere, 2(2):art19. link joint 1st authorship

  98. Ward, E.J., Semmens, B.X., Holmes, E.E., and K.C. Balcomb. 2011. Effects of multiple levels of social organization on survival and abundance. Conservation Biology, 25(2): 350-355. link

  99. Ward, E.J., Zerbini, A.N., Engel, M.E., Kinas, P.G. and Andriolo, A. 2011. Estimates of population growth rates of humpback whales (Megaptera novaeangliae) in the wintering grounds off the coast of Brazil (Breeding Stock A). J. Cet Res. Manage. (Special Issue), 3: 145-149.

  100. Zerbini, A.N., E.J. Ward, Engel, M.E., Kinas, P.G. and Andriolo, A. 2009. A Bayesian assessment of the conservation status of humpback whales (Megaptera novaeangliae) in the Western South Atlantic (Breeding Stock A). J. Cet Res. Manage., SC/58/SH02.

  101. Ward, E.J., B.X. Semmens, and D.E. Schindler. 2010. Including source uncertainty and prior information in the analysis of stable isotope mixing models. Environmental Science & Technology, 44(12): 4645-4650. link

  102. Williamson, K.S., A.R. Murdoch, T.N. Pearsons, E.J. Ward, and M.J. Ford. 2010. Factors influencing the relative fitness of hatchery and wild spring Chinook salmon in the Wenatchee River, Washington, USA. Canadian Journal of Fisheries and Aquatic Sciences, 67: 1840-1851. link

  103. Warren, D.R., M.M. Mineau, E.J. Ward, and C.E. Kraft. 2010. Relating fish biomass to habitat and chemistry in headwater streams of the northeastern United States. Environmental Biology of Fishes, 88: 51-62. link

  104. Ward, E.J., H. Chirrakal, M. González-Suárez, D. Aurioles-Gamboa, E.E. Holmes, L. Gerber. 2010. Inferring spatial structure from time-series data: using multivariate state-space models to detect metapopulation structure of California sea lions in the Gulf of California, Mexico. Journal of Applied Ecology, 47: 47-56. Recommended by Faculty of 1000 Biology link

  105. Semmens, B.X., E.J. Ward, J.W. Moore, and C.T. Darimont. 2009. Quantifying inter- and intra-population niche variability using hierarchical Bayesian stable isotope mixing models. PLoS ONE, 4(7): e6187. joint 1st authorship link

  106. Ward, E.J., E.E. Holmes, and K.C. Balcomb. 2009. Quantifying the effects of prey abundance on killer whale reproduction. Journal of Applied Ecology, 46(3): 632-640. link

  107. Semmens, B.X., J. Moore, and E.J. Ward. 2009. Improving Bayesian isotope mixing models: a response to Jackson et al. Ecology Letters, 12(3): E6-E8. link

  108. Ward, E.J., E.E. Holmes, K. Parsons, KC Balcomb, and JKB Ford. 2009. The role of menopause and reproductive senescence in a long-lived social mammal. Frontiers in Zoology, 6(4). link

  109. Ward, E.J. 2008. A review and comparison of four commonly used Bayesian and maximum likelihood model selection tools. Ecological Modelling, 211: 1-10. link

  110. Ward, E.J., R. Hilborn, R.G. Towell, and L. Gerber. 2007. A state-space mixture approach for estimating catastrophic events in time series data. Canadian Journal of Fisheries and Aquatic Sciences, 64: 899-910. link

  111. Ward, E.J. 2006. A new BEAST: Bayesian software tools for ecological trend analysis. Wildlife Society Bulletin, 34: 1420-1424. link

  112. Branch, T., A. Haynie, R. Hilborn, G. Fay, L. Flynn, J. Griffiths, K. Marshall, J. Randall, J. Scheurell, E.J. Ward, and M. Young. 2006. Fleet dynamics and fishermen behavior: lessons for fisheries managers. Canadian Journal of Fisheries and Aquatic Sciences, 63: 1647-1668. link

  113. Ward, E.J. 2005. Differences between fishery-dependent and fishery-independent estimates of single-species and mixed-species dolphin schools: implications for single-species stock assessments. Marine Mammal Science, 21: 189-203. link