Northwest Fisheries Science Center

NWFSC Staff Directory

NWFSC Publications for Eric Ward

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66 record(s) found.

Shelton, A. O., M. E. Hunsicker, E. J. Ward, B. E. Feist, R. Blake, C. L. Ward, B. Williams, J. T. Duffy-Anderson, A. Hollowed, A. C. Haynie. In press. Spatio-temporal models reveal subtle changes to demersal communities following the Exxon Valdez oil spill. ICES Journal of Marine Science.Go to metadata icon

Ward, E. J., S. C. Anderson, A. O. Shelton, R. Brenner, J. Watson, J. C. Shriver, A. H. Beaudreau, A. C. Haynie, M. Adkison, B. Williams. In press. Effects of increased specialization on revenue of Alaskan salmon fishers over four decades. Journal of Applied Ecology.Go to metadata icon

Anderson, S. C., E. J. Ward, A. O. Shelton, M. Adkison, A. H. Beaudreau, R. Brenner, A. C. Haynie, J. C. Shriver, J. Watson, B. Williams. 2017. Benefits and risks of diversication for individual fishers. Proceedings of the National Academy of Science.Go to metadata icon

Chasco, B., I. C. Kaplan, A. Thomas, A. Acevedo-Gutierrez, D. P. Noren, M. J. Ford, M. B. Hanson, J. Scordino, K. Marshall, A. O. Shelton, C. D. Matkin, B. J. Burke, E. J. Ward. 2017. Competing tradeoffs between increasing marine mammal predation and fisheries harvest of Chinook salmon. Scientific Reports.Go to metadata icon

Chasco, B., I. C. Kaplan, E. J. Ward, A. Thomas, A. Acevedo-Gutierrez, D. P. Noren, M. J. Ford, M. B. Hanson, J. Scordino, S. J. Jeffries, S. F. Pearson, K. N. Marshall. 2017. Estimates of Chinook salmon consumption in Puget Sound area waters by four marine mammal predators from 1970  2015. Canadian Journal of Fisheries and Aquatic Sciences. doi:10.1139/cjfas-2016-0203Go to metadata icon

Deacy, W. W., J. B. Armstrong, W. B. Leacock, C. T. Robbins, D. D. Gustine, E. J. Ward, J. A. Erlenbach, J. A. Stanford. 2017. Phenological synchronization disrupts a keystone trophic interaction. Proceedings of the National Academy of Sciences.Go to metadata icon

Hussey, N., J. DiBattista, J. W. Moore, E. J. Ward, A. Fisk, S. Kessel, T. Guttridge, K. Feldheim, B. Franks, S. Gruber, O. Weideli, D. Chapman. 2017. Risky business for a juvenile marine predator? Testing the influence of foraging strategies on size and growth rate under natural conditions. Proceedings of the Royal Society of London. Series B.Go to metadata icon

Linder, H., J. K. Horne, E. J. Ward. 2017. Evaluating Models that Characterize Baseline Conditions: Ecological Monitoring at Marine Renewable Energy Sites. Ecological Indicators, 83:178-191.Go to metadata icon

Ward, E. J., M. Adkison, J. Couture, S. C. Dressel, M. Litzow, S. Moffitt, T. Hoem Neher, J. Trochta, 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.Go to metadata icon

Adams, J., I. C. Kaplan, B. Chasco, K. N. Marshall, A. Acevedo-Gutierrez, E. J. Ward. 2016. A century of Chinook salmon consumption by marine mammal predators in the Northeast Pacific Ocean. Ecological Indicators.Go to metadata icon

Armstrong, J. B., E. J. Ward, D. E. Schindler, P. J. Lisi. 2016. Adaptive capacity at the northern front: sockeye salmon behaviorally thermoregulate during novel exposure to warm temperatures. Conservation Physiology.Go to metadata icon

Boyd C, DeMaster DP, Waples RS, Ward EJ, Taylor BL.  2017.  Consistent extinction risk assessment for marine species under the U.S. Endangered Species Act.  Conservation Letters 10:328-336.Go to metadata icon

Gerrodette, T., E. J. Ward, R. L. Taylor, L. Schwarz, T. Eguchi, P. R. Wade. 2016. Daniel Goodman's Empirical Approach to Bayesian Statistics. PeerJ.Go to metadata icon

Jorgensen, J. C., E. J. Ward, M. D. Scheuerell, R. W. Zabel. 2016. The next link will exit from NWFSC web site Assessing spatial covariance among time series of abundance. Ecology and Evolution, 6(8):2472-2485.Go to metadata icon

Moriarty, P. E., T. E. Essington, E. J. Ward. 2016. A Novel Method to Estimate Prey Contributions to Predator Diets. Canadian Journal of Fisheries and Aquatic Sciences.Go to metadata icon

Stier, A. C., J. F. Samhouri, K. N. Marshall, E. J. Ward, M. Novak, P. S. Levin. 2016. Ecosystem Context and Historical Contingency in Apex Predator Recoveries. Science Advances, 2(5):e1501769. doi:10.1126/sciadv.1501769Go to metadata icon

Thorson, J. T., M. L. Pinsky, E. Ward. 2016. Model-based inference for estimating distribution changes in marine fishes. Global Change Biology.Go to metadata icon

Ward, E. J., M. E. Dahlheim, J. Waite, C. K. Emmons, K. N. Marshall, B. Chasco, K. C. Balcomb III. 2016. Long distance migration of prey synchronizes demographic rates of top oceanic predators. Ecosphere.Go to metadata icon

Bjorkland, R., S. F. Pearson, S. J. Jeffries, M. M. Lance, A. Acevedo-Gutierrez, E. J. Ward. 2015. Stable isotope analysis elucidates sex and size effects on diet composition of Salish Sea harbor seals (Phoca vitulina). Marine Ecology Progress Series.Go to metadata icon

Galloway, A., M. T. Brett, G. W. Holtgrieve, E. J. Ward, A. Ballantyne, C. W. Burns, M. J. Kainz, D. C. Müller-Navarra, J. Persson, J. L. Ravet, U. Strandberg, S. J. Taipale, G. Alhgren. 2015. A Fatty Acid Based Bayesian Approach for Inferring Diet in Aquatic Consumers. PLOS ONE.Go to metadata icon

Marshall, K. N., A. C. Stier, J. F. Samhouri, R. P. Kelly, E. J. Ward. 2015. Conservation challenges of predator recovery. Conservation Letters.Go to metadata icon

Ono, K., A. O. Shelton, E. J. Ward, J. T. Thorson, B. E. Feist, R. Hilborn. 2015. Space-time investigation of the effects of fishing on fish populations. Ecological Applications.Go to metadata icon

Thorson, J. T., A. O. Shelton, E. J. Ward, H. Skaug. 2015. The next link will exit from NWFSC web site Geostatistical delta-generalized linear mixed models improve precision for estimated abundance indices for West Coast groundfishes. ICES Journal of Marine Science, 72(5):1297-1310. doi:10.1093/icesjms/fsu213Go to metadata icon

Thorson, J. T., J. Cope, K. Kleisner, J. F. Samhouri, A. O. Shelton, E. J. Ward. 2015. Giants' shoulders 15 years later: Lessons, challenges, and guidelines in fisheries meta-analysis. Fish and Fisheries, 16(2):342361. doi:DOI: 10.1111/faf.12061Go to metadata icon

Thorson, J. T., H. Skaug, K. Kristensen, A. O. Shelton, E. J. Ward, J. Harms, J. A. Benante. 2015. The importance of spatial models for estimating the type and strength of density dependence. Ecology, 96(5):12021212. doi:10.1890/14-0739.1Go to metadata icon

Ward, E. J., J. H. Anderson, T. J. Beechie, G. R. Pess, M. J. Ford. 2015. Increasing hydrologic variability threatens depleted anadromous fish populations. Global Change Biology.Go to metadata icon

Ward, E. J., J. E. Jannot, Y. Lee, K. Ono, A. O. Shelton, J. T. Thorson. 2015. Using spatiotemporal species distribution models to identify temporally evolving hotspots of species co-occurrence. Ecological Applications.Go to metadata icon

Westley, P. A., A. H. Dittman, E. J. Ward, T. Quinn. 2015. Signals of climate, density-dependence, and human disturbance in Pacific salmon dispersal. Ecology.Go to metadata icon

Anlauf-Dunn, K., E. J. Ward, M. Strickland. 2014. Habitat connectivity, complexity and quality: Predicting adult coho salmon occupancy and abundance. Canadian Journal of Fisheries and Aquatic Sciences.Go to metadata icon

Chasco, B., E. J. Ward, C. Rabe, R. Kinzer, J. Vogel, J. A. Hesse, P. Kucera. 2014. Using state-space models to evaluate multiple survey methods: a case study for a threatened population of Chinook salmon (Oncorhynchus tshawytscha) in Johnson Creek, Idaho. North American Journal of Fisheries Management.Go to metadata icon

Nosrati, K., G. Govers, B. X. Semmens, E. J. Ward. 2014. A mixing model to include uncertainty in sediment fingerprinting. Geoderma.Go to metadata icon

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

Sergeant, C. J., J. B. Armstrong, E. J. Ward. 2014. Predator-prey migration phenologies remain synchronized in a warming catchment. Freshwater Biology.Go to metadata icon

Shelton, A. O., J. T. Thorson, E. J. Ward, B. E. Feist. 2014. Spatial, semi-parametric models improve estimates of species abundance and distribution. Canadian Journal of Fisheries and Aquatic Sciences, 71(11):1655-1666. doi:10.1139/cjfas-2013-0508Go to metadata icon

Thorson, J. T., E. J. Ward. 2014. Accounting for vessel effects when standardizing catch rates from cooperative surveys. Fisheries Research.Go to metadata icon

Ward, E. J., E. E. Holmes, J. T. Thorson. 2014. Complexity is costly: comparing parametric and non-parametric methods for short-term population forecasting. Oikos, 123(6):652-661.Go to metadata icon

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. 2014. Using citizen-science data to identify local hotspots of seabird occurrence. PeerJ.Go to metadata icon

Bodey, T., E. J. Ward, R. A. Phillips, R. A. McGill, S. Bearhop. 2013. Species versus Guild Level Differentiation Revealed Across the Annual Cycle by Isotopic Niche Examination. Journal of Animal Ecology, 83:470-478. doi:10.1111/1365-2656.12156Go to metadata icon

Hampton, S. E., E. E. Holmes, L. P. Scheef, M. D. Scheuerell, S. L. Katz, D. E. Pendleton, E. J. Ward. 2013. The next link will exit from NWFSC web site Quantifying effects of abiotic and biotic drivers on community dynamics with multivariate autoregressive (MAR) models. Ecology, 94(12):2663-2669.Go to metadata icon

Hanson, M. B., C. K. Emmons, E. J. Ward, J. A. Nystuen, M. O. 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. doi:dx.doi.org/10.1121/1.4821206Go to metadata icon

Holtgrieve, G. W., M. E. Arias, K. M. Irvine, D. Lamberts, E. J. Ward, M. Kummu, J. Koponen, J. Sarkkula, J. E. Richey. 2013. Patterns of Ecosystem Metabolism in the Tonle Sap Lake, Cambodia with Links to Capture Fisheries. PLoS ONE, 8(8):e71395. doi:http://dx.doi.org/10.1371/journal.pone.0071395Go to metadata icon

Parnell, A. C., D. L. Phillips, S. Bearhop, B. X. Semmens, E. J. Ward, J. W. Moore, A. L. Jackson, J. Grey, D. Kelly, R. Inger. 2013. Bayesian Stable Isotope Mixing Models. Environmetrics.Go to metadata icon

Semmens, B. X., E. J. Ward, A. C. Parnell, D. L. Phillips. 2013. Statistical basis and outputs of stable isotope mixing models: Comment on Fry (2013). Marine Ecology Progress Series.Go to metadata icon

Thorson, J. T., E. J. Ward. 2013. Accounting for space-time interactions in index standardization models. Fisheries Research.Go to metadata icon

Thorson, J. T., E. J. Ward. 2013. Accounting for space-time interactions in index standardization models. Fisheries Research, 147:426-433.Go to metadata icon

Van Daele, M. B., C. T. Robbins, B. X. Semmens, E. J. Ward, L. J. Van Daele, W. B. Leacock. 2013. Salmon consumption by Kodiak brown bears (Ursus arctos middendorffi) with ecosystem management implications. Canadian Journal of Zoology, 91(3):164-174.Go to metadata icon

Ward, E. J., M. J. Ford, R. G. Kope, J. K. Ford, A. Velez-Espino, C. K. Parken, L. LaVoy, M. B. Hanson, K. C. Balcomb. 2013. Estimating the impacts of Chinook salmon abundance and prey removal by ocean fishing on Southern Resident killer whale population dynamics. U.S. Dept. of Commerce, NOAA Tech. Memo., NMFS-NWFSC-123, 71 p.Go to metadata icon

Holmes, E. E., E. J. Ward, K. Wills. 2012. The next link will exit from NWFSC web site MARSS: multivariate autoregressive state-space models for analyzing time-series data. R Journal, 4(1):11-19.Go to metadata icon

Stout, H. A., P. W. Lawson, D. L. Bottom, T. Cooney, M. J. Ford, C. E. Jordan, R. G. Kope, L. M. Kruzic, G. R. Pess, G. H. Reeves, M. D. Scheuerell, T. C. Wainwright, R. S. Waples, E. Ward, L. A. Weitkamp, J. G. Williams, T. H. Williams. 2012. Scientific conclusions of the status review for Oregon coast coho salmon (Oncorhynchus kisutch). U.S. Dept. of Commerce, NOAA Tech. Memo., NMFS-NWFSC-118.Go to metadata icon

Ward, E., G. R. Pess, K. Anlauf-Dunn, C. E. Jordan. 2012. The next link will exit from NWFSC web site 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.Go to metadata icon

Westley, P. A., E. J. Ward, I. Fleming. 2012. The next link will exit from NWFSC web site Fine-scale local adaptation in an invasive freshwater fish has evolved in contemporary time. Proceedings of the Royal Society of London. Series B, 280(1751).Go to metadata icon

Anderson, J. H., E. J. Ward, S. M. Carlson. 2011. A model of reproductive success for estimating the minimum number of offspring to sample in parentage studies. Journal of Heredity, 102(5):567-576. doi:doi: 10.1093/jhered/esr060Go to metadata icon

Berntson, E. A., R. W. Carmichael, M. W. Flesher, E. J. Ward, 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.Go to metadata icon

Francis, T. B., D. E. Schindler, G. W. Holtgrieve, E. Larson, M. D. Scheurell, B. X. Semmens, E. J. Ward. 2011. Habitat structure and energetic support for zooplankton in temperate lakes. Ecology Letters, 14:364-372.Go to metadata icon

Holtgrieve, G. W., 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, A. P. Wolfe. 2011. A coherent signature of anthropogenic nitrogen deposition to remote watersheds of the Northern Hemisphere. Science, 16:1545-1548.Go to metadata icon

Ward, E. J., B. X. Semmens, D. L. Phillips, J. W. Moore, N. Bouwes. 2011. A quantitative approach for grouping sources in stable isotope mixing models. Ecosphere, 2(2):art19.Go to metadata icon

Ward, E. J., B. Semmens, E. E. Holmes, K. C. Balcomb III. 2011. Effects of Multiple Levels of Social Organization on Survival and Abundance. Conservation Biology, 25(2):350-355. doi:10.1111/j.1523-1739.2010.01600.xGo to metadata icon

Ward, E. J., P. S. Levin, M. M. Lance, S. J. Jeffries, A. Acevedo-Gutierrez. 2011. Integrating diet and movement data to identify hot spots of predation risk and areas of conservation concern for endangered species. Conservation Letters, 5(1):37-47. doi:DOI: 10.1111/j.1755-263X.2011.00210.xGo to metadata icon

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

Ward, E. J., H. Chirakkal, M. Gonzalez-Suarez, D. Aurioles-Gamboa, E. E. Holmes, L. Gerber. 2010. Applying multivariate-state-space models to detect spatial clustering of California sea lions in the Gulf of California, Mexico. Journal of Applied Ecology, 47:47-56.Go to metadata icon

Ward, E. J., B. Semmens, D. E. Schindler. 2010. Including Source Uncertainty and Prior Information In The Analysis of Stable Isotope Mixing Models. Environmental Science & Technology.Go to metadata icon

The next link will exit from NWFSC web site Williamson KS, Murdoch AR, Pearsons TN, Ward EJ, Ford MJ. 2010. Factors influencing the relative fitness of hatchery and wild spring Chinook salmon (Oncorhynchus tshawytscha) i the Wenatchee River, Washington, USAGo to metadata icon

Semmens, B., E. J. Ward, J. W. Moore, C. T. Darimont. 2009. The next link will exit from NWFSC web site Quantifying Inter-And-Intra Population Niche Variability Using Hierarchical Bayesian Stable Isotope Mixing Models. PLoS ONE, 4(7):e6187. doi:doi:10.1371/journal.pone.0006187Go to metadata icon

Ward, E. J., E. E. Holmes, K. C. Balcomb III. 2009. Evidence of reproductive senescence and prey limitation in killer whales.Go to metadata icon

Ward, E. J., E. E. Holmes. 2009. The Role Of Menopause And Reproductive Senescence In A Long-Lived Social Mammal. Frontiers in Zoology.Go to metadata icon

Warren, D. R., M. M. Mineau, C. E. Kraft, E. Ward. 2009. Relating Fish Biomass to Habitat and Chemistry in Headwater streams of the Northeastern United States.Go to metadata icon