Publications
2024
Johnson, P. T. J., Calhoun, D. M., Achatz, T. J., Greiman, S. E., Gestos, A., and W. H., Keeley (2024). Outbreak of parasite-induced limb malformations in a declining amphibian species in Colorado. International Journal for Parasitology: Parasites and Wildlife 24: 100965.Ìý.Ìý
Locke, S. A.,ÌýCalhoun, D. M., Valencia Cruz, J. M., Ebbs, E. T., Diaz Pernett, S. C., Tkach, V. V., Kinsella, J. M., Freeman, M. A., Blanar, C. A., and P. T. J. Johnson (2024). Expanding on expansus: A new species of Scaphanocephalus from North America and the Caribbean based on molecular and morphological data. Parasitology, 1–51.Ìý.Ìý
Vanderzanden, M. J., Gorsky, A., Hansen, G. J. A., Johnson, P. T. J., Latzka, A. W., Mikulyuk, A., Rohwer, R. R., Spear, M. J., and J. R. Walsh (2024). Nine Lessons about aquatic invasive species from the North-Temperate Lakes Long-Term Ecological Research program. BioScience (accepted).
De Wit, C. D. G. andÌýJohnson, P. T. J (2024). Black Spot Syndrome in ocean surgeonfish: using video-based surveillance to quantify disease severity and test environmental drivers. Marine Biology,Ìý171: 110.Ìý.Ìý
Sauer, E. L., Venesky, M. D., McMahon, T., A., Cohen, J. M., Bessler, S., Brannelly, L. A., Brem, F., Halstead, N., Hyman, O., Johnson, P. T. J., Richards-Zawacki, C. L., Rumschlag, S. L., Sears, B., and J. R. Rohr (2024). Are novel or locally adapted pathogens more devastating and why? Resolving opposing hypotheses. Ecology LettersÌý27: e14431. .Ìý
Thieltges, D. W., Johnson, P. T. J, van Leeuwen, A., and J. Koprivnikar. Effects of predation risk on parasite-host interactions and wildlife diseases.ÌýEcologyÌý105(6): e4315.Ìý.Ìý
Malawauw, R. J., Piaskowy, J., Ter Horst, L. J., Calhoun, D. M., and P. T. J.,ÌýJohnson (2024).ÌýParasitism in reef fish communities: evaluating the roles of host traits, habitat use, and phylogeny on infection byÌýScaphanocephalusÌý(Trematoda).ÌýCoral Reefs,Ìý43: 509–522.Ìý.Ìý
Johnson, P. T. J., Stewart Merrill, T. E., Dean, A. D. and A.ÌýFenton (2024). Diverging effects of host density and richness across biological scales drive diversity-disease outcomes. Nature CommunicationsÌý15:1937. .Ìý
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2023
McMahon, T. A., Nordheim, C. L., Detmering, S. E., Johnson, P. T. J., Rohr, J. R., and D. J. Civitello (2023). Pseudacris regilla metamorphs acquire resistance to a deadly pathogen after exposure to the killed fungus. Diseases of Aquatic Organisms 55: 193-198. .
Calhoun, D. M., Curtis, J., Hassan, C. and P. T. J. Johnson (2023). Putting infection on the map: Using heatmaps to characterize within- and between-host distributions of trematode metacercariae. Journal of HelminthologyÌý97: E33. .Ìý
Koprivnikar, J., Thieltges, D. W., and P. T. J. Johnson (2023). Consumption of trematode parasite infectious stages: from conceptual synthesis to future research agenda. Journal of Helminthology 97: E33. .Ìý
Snyder, P. W., Ramsay, C., Harjoe, C. T., Harjoe, C. C.,ÌýKhazan, E. S., Briggs, C. J., Hoverman, J. T., Johnson, P. T. J, Preston, D., Rohr, J. R.Ìýand A. R. Blaustein (2023). Experimental evidence that host species composition alters host-pathogen dynamics in a ranavirus-amphibian assemblage.ÌýEcology 104: e3885.Ìý.
Johnson, P. T. J., Stewart Merrill, T. E., Calhoun, D. M., McDevitt-Galles, T., and B. K. Hobart (2023). Into the danger zone: how the within-host distribution of parasites controls virulence. Ecology Letters 27:Ìýe14352.Ìý.Ìý
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2022
ÌýStewart Merrill, T., Calhoun, D. M. and P. T. J. Johnson (2022).ÌýBeyond single host, single parasite interactions: quantifying competence for complete multi-host, multi-parasite communities.ÌýFunctional EcologyÌý36: 1845-1857.Ìý.Ìý
Li, J., Chapman, J. and P. T. J. JohnsonÌý(2022).ÌýCo-infesting symbionts on a threatened marine host: evaluating correlations between an introduced parasitic isopod and a native commensal clam.ÌýMarine Ecology Progress SeriesÌý695: 83-93.Ìý.Ìý
McDevitt-Galles, T., Moss, W. E., Briggs, C. J. and P. T. J. Johnson (2022).ÌýHow extreme drought events, introduced species, and disease interact to affect threatened amphibian populations.ÌýFreshwater BiologyÌý41: 680-694.Ìý.
Nordheim, C., Detmering, S., Civitello, D., Johnson, P. T. J., Rohr, J., and T. McMahon (2022).ÌýMetabolites from the fungal pathogenÌýBatrachochytrium dendrobatidisÌýinduce acquired resistance in Cuban treefrog tadpoles.ÌýJournal of Applied EcologyÌý59: 2398-2403.Ìý.Ìý
Moss, W. E., Harper, L. R., Davis, M. A., Goldberg, C. S., Smith, M. W. and P. T. J. Johnson (2022).ÌýNavigating the tradeoffs between environmental DNA and conventional field surveys for improved amphibian monitoring.ÌýEcosphereÌý13: e3941.Ìý.Ìý
Hobart, B. K., Moss, W. E., McDevitt-Galles, T., Stewart Merrill, T. and P. T. J. Johnson (2022).ÌýIt's a worm-eat-worm world: consumption of parasite free-living stages protects hosts and benefits predators.ÌýJournal of AnimalÌýEcologyÌý91: 35-45. Ìý.Ìý
2021
McDevitt-Galles, T., Carpenter, S., Koprivnikar, J. and P. T. J. Johnson (2021). How predator and parasite size interact to determine consumption of infectious stages.ÌýOecologiaÌý197:551-564.Ìý
Moss, W. E., McDevitt-Galles, T., Muths, E., Bobzien, S., Purificato, J. and P. T. J. Johnson (2021).ÌýResilience of native amphibian communities following catastrophic drought: evidence from a decade of regional-scale monitoring.ÌýBiological ConservationÌý263: 109352.Ìý
Johnson, P. T. J. and. S. E. Haas (2021).ÌýWhy do parasites exhibit reverse latitudinal diversity gradients? Testing the roles of host diversity, habitat, and climate.ÌýGlobal Ecology and BiogeographyÌý30: 1810-1821.Ìý
Bjarke, N., Livneh, B., Elmendorf, S., Molotch, N., Hinckley, E.-L., Emery, N., Johnson, P. T. J., Morse, J., and K. Suding (2021).Catchment scale observations at the Niwot Ridge Long-Term Ecological Research site.ÌýHydrological ProcessesÌý35: e14320.Ìý
Christianson, K., Loria, K., Blanken, P., Caine, T. N. and P. T. J. Johnson (2021).ÌýOn thin ice: linkingÌýelevation and long-term losses of lake ice cover.ÌýLimnology and Oceanography LettersÌý6: 77-84Ìý.Ìý
Valenzuela-Sanchez, A., Wilber, M., Canessa, S., Bacigalupe, L., Muths, E., Schmidt, B., Cunningham, A., Ozgul, A., Johnson, P. T. J. and H. Cayuela (2021). Why disease ecology needs life-history theory: a host perspective.ÌýEcology LettersÌý24: 876-890.Ìý
Locke, S., Drago, F. B., López-Hernández, D., Chibwana, F. D., Núñez, V., Van Dam, A., Fernanda Achinelly, M., Johnson, P. T. J., Costa Alves de Assis, J., Lane de Melo, A., and H. Alves Pinto (2021). Intercontinental distributions, phylogenetic position and life cycles of species ofÌýApharyngostrigeaÌý(Digenea, Diplostomoidea) illuminated with morphological, experimental, molecular and genomic data.International Journal for ParasitologyÌý51: 667-683.Ìý
Johnson, P. T. J., Calhoun, D. M., Moss, W. E., McDevitt-Galles, T., Riepe, T. B., Hallas, J. M., Parchman, T. L., Feldman, C. R., Achatz, T. J., Tkach, V. V., Cropanzano, J., Bowerman, J., and J. Koprivnikar (2021).ÌýThe cost of travel: how dispersal ability limits local adaptation in host-parasite interactions.ÌýJournal of Evolutionary BiologyÌý34: 512-524.Ìý
Johnson, S. K. and P. T. J. Johnson (2021). Toxoplasmosis: Recent advances in understanding the link between infection and host behavior.ÌýAnimal BiosciencesÌý9: 249-264.Ìý
2020
Calhoun, D. M., Esfahani, E., Locke, S. A., Moser, W., and P. T. J. Johnson (2020). How parasite exposure and time interact to determineÌýAustralapatemon burtiÌý(Trematoda: Digenea) infectionsÌýin its intermediate leech host (ErpobdellaÌýmicrostoma) (Hirudinea: Eropdellidae).ÌýExperimental ParasitologyÌý219: 108002.Ìý
Rose. D. P., Calhoun. D. M., and P. T. J. Johnson (2020). Infection prevalence and pathology of the cymothoid parasiteÌýOlencira praegustatorÌýin Atlantic menhaden. Invertebrate BiologyÌý2020;00:e12300.Ìý
Loria, K. A., Christianson, K. R.Ìýand P. T. J. Johnson (2020).ÌýPhenology of alpine zooplankton populations and the importance of lake ice-out,ÌýJournal of Plankton Research 1-15.
McKee*, K. M., Koprivnikar, J. Johnson, P. T. J. and M. T. Arts (2020).ÌýParasite infectious stages provide essential fatty acids and lipid-rich resources to freshwater consumers.ÌýOecologia 192:477-488.Ìý
Preston, D. L., Sokol, E. R., Hell, K., McKnight, D. M. and P. T. J. Johnson (2020).ÌýExperimental effects of elevated temperature and nitrogen deposition on high elevation aquatic communities.ÌýAquatic SciencesÌý82: 7.
Iwaniec, D., Gooseff, M., Suding, K., Johnson, D., Reed, D., Peters, D., Adams, B., Barrett, J., Bestelmeyer, B., Castorani, M., Cook, E., Davidson, M., Hanan, N., Huenneke, L., Johnson, P., McKnight, D., Miller, R., Okin, G., Preston, D., Rassweiller, A., Ray, C., Sala, O., Schooley, R., Seastedt, T., Spasojevic, M., Vivoni, E. and P. Groffman.ÌýFuture trajectories for ecosystems of the U.S. Long Term Ecological Research Network: The importance of connectivity.ÌýEcosphereÌý(accepted).
Martin*, K. R., Johnson, P. T. J., Bowerman, J. and J. Li (2020). Biogeography of the freshwater gastropod,ÌýPlanorbella trivolvis, in the western United States.ÌýPLoS ONEÌý15(7):e0235989.
Wilber, M. Q., Briggs., C. J. and P. T. J. Johnson (2020). Disease’s hidden death toll: Using parasite aggregation patterns to quantify landscape-level host mortality in a wildlife system.ÌýJournal of Animal EcologyÌý2020;00:1-12.
Olesky*, I. A., Beck, W., Lammers, R., Steger, C., Christianson*, K., Wilson, C., Johnson, G., Vincent*, K., Johnson, P. T. J., and J. Baron (2020). The role of warm, dry summers and variation in snowpack on phytoplankton dynamics in mountain lakes. EcologyÌý101(10):e03125.
Stewart Merrill, T. E. and P. T. J. JohnsonÌý(2020). Toward a mechanistic understanding of competence: a missing link in diversity-disease research.ÌýParasitologyÌý1-12.
Wilber, M. Q., Johnson, P. T. J., and C. J. BriggsÌý(2020).ÌýDisease hotspots or hot species? Infection dynamics in multi-host metacommunities controlled by species composition, not source location. Ecology Letters (in press).ÌýÌý
Moss, W. E., McDevitt-Galles, T., Calhoun, D. M.Ìýand P. T. J. JohnsonÌý(2020).ÌýTracking the assembly of nested parasite communities: using β-diversity to understand variation in parasite richness and composition over time and scale. ​Journal of Animal Ecology 2020;00:1-11.Ìý
McDevitt-Galles, T., Moss, W. E., Calhoun, D. M., and P. T. J. JohnsonÌý(2020).ÌýPhenological synchrony drives disease dynamics in host - parasite systems. Proceedings of the Royal Society Series B 287:20192597.Ìý
Wood, C. L., Summerside, M., and P. T. J. JohnsonÌý(2020).ÌýHow host diversity and abundance affect parasite infections: results from a whole-ecosystem manipulation of bird activity. Biological ConservationÌý(in press).Ìý
Loria K. A., McKnight D., Ragar D. M., and P. T. J. Johnson (2020). The life aquatic in high relief: how elevation dictates the physical and biological characteristics of alpine lakes in the Rocky Mountains, USA. Aquatic Sciences 82:11.Ìý
2019
Kohl, Z. F., Calhoun, D. M., Elmer, F., Peachey, R. B. J., Leslie, K. L., Tkach, V., Kinsella, J. M., and P. T. J. JohnsonÌý(2019). Black-spot syndrome in Caribbean fishes linked to trematode parasite infection (Scaphanocephalus expansus).ÌýCoral Reefs 38: 917-930.Ìý
Elmer, F., Kohl, Z. F., Johnson, P. T. J., and R. B. J. Peachey (2019).ÌýSpatial and temporal distribution of Black-Spot Syndrome associated with Scaphocephalus expansus nfection in reef fish within the wider Caribbean. Coral Reefs 38:Ìý1303-1315.Ìý
Wood, C. L., M. Summerside, and P. T. J. Johnson (2019). An effective method for ecosystem-scale manipulation of bird abundance and diversity. Ecology and EvolutionÌý9: 9748-9758.ÌýÌý
Johnson, P. T. J., Calhoun, D. M., Riepe, T. B., and J. KoprivnikarÌý(2019). Community disassembly and disease: realistic -- but not randomized -- biodiversity losses enchance parasite transmission.ÌýProceedings of the Royal SocietyÌýB:Ìý286.ÌýÌý
Riepe, T. B., Calhoun, D. M., and P. T. J. JohnsonÌý(2019). Comparision of direct and indirect technique for evaluating endoparasite infections in wild-caught newts (Taricha torosa and Taricha granulosa).ÌýDiseases of Aquatic Organisms 134: 137-146.ÌýÌý
Stutz, W. E., Calhoun, D. M., and P. T. J. JohnsonÌý(2019). Resistance and tolerance: a hierarchical framework to compare individual versus family-level host contributions in an experimental amphibian-trematode system.ÌýExperimental ParasitologyÌý199: 80-91.Ìý
Calhoun, D. M., Leslie, K. L., Riepe, T. B., Achatz, T. J., McDevitt-Galles, T., Tkach, V. V., and P. T. J. JohnsonÌý(2019). Patterns ofÌýClinostomum marginatumÌýinfection in fishes and amphibians: integration of field, genetic, and experimental approaches.ÌýJournal of HelminthologyÌý94: e44.ÌýÌý
Johnson, P. T. J., Calhoun, D. M., Riepe, T. B., and J. Koprivnikar (2019). Chance or choice? Understanding parasite selection and infection in multi-host communities.ÌýInternational Journal of ParasitologyÌý49:407-415.Ìý
Koprivnikar, J., B. J. Hoye, T. M. Y. Urichuk, and P. T. J. Johnson (2019). Endocrine and immune responses of larval amphibians to trematode infections.ÌýParasitology ResearchÌý118: 275-288.ÌýÌý
2018
Springer, Y. P. and P. T. J. JohnsonÌý(2018). Large-scale health disparities associated with tickborne diseases in the United States, 2007–2013.ÌýPLoS ONEÌý13: e0204609.Ìý
Mihaljevic, J. R., Hoverman, J. T. and P. T. J. Johnson (2018).ÌýCo-exposure to multipleÌýRanavirusÌýtypes enhances viral infectivity and replication in a larval amphibian system. Diseases of Aquatic Organisms 132:Ìý23-35.ÌýÌý
Reid, A. J., Carlson, A. K., Creed, I. F., Eliason, E. J., Gell, P. A., Johnson, P. T. J., Kidd, K. A., MacCormack, T. J., Olden, J. D., Ormerod, S. J., Smol, J. P., Taylor, W. W., Tockner, K., Vermaire, J. C., Dudgeon, D., and S. J. Cooke (2018).ÌýEmerging threats and persistent conservation challenges for freshwater biodiversity. Biological Reviews 94:Ìý849-873.ÌýÌý
Miller, D. A. W., Grant, E. H. C., Muths, E., Amburgey, S. M., Adams, M. J., Joseph, M. B., Waddle, H., Johnson, P. T. J.,Ìýet al. (2018). QuantifyingÌýclimate sensitivity and climate driven change in North American amphibian communities.ÌýNature CommunicationsÌý9: 3926.Ìý
McDevitt-Galles, T. and P. T. J. JohnsonÌý(2018). Drought attenuates the impact of fish on aquatic macroinvertebrate diversity and speciesÌýcomposition.ÌýFreshwater BiologyÌý63: 1457-1468.Ìý
Johnson, P. T. J. (2018). Acceptance of the Henry Baldwin Ward Medal for 2018: a fascination of the abomination.ÌýJournal of ParasitologyÌý104: 595-599.ÌýÌý
Johnson, S. K., Fitza, M. A., Lerner, D. A., Calhoun, D. M., Beldon, M. A., Chan, E. T., and P. T. J. JohnsonÌý(2018). Risky Business: linkingÌýToxoplasma gondiiÌýinfection and entrepreneurship behaviors across individuals and countries. Proceedings of the Royal Society Series B:Ìý285: 20180822.Ìý
Johnson, P. T. J., Calhoun, D. M., Stokes, A. N., Susbilla, C. B., McDevitt-Galles, T., Briggs, C., Hoverman, J. T., Tkach, V., and J. de RoodeÌý(2018). Of poisons and parasites-the defensive role of tetrodotoxin against infections in newts.ÌýJournal of Animal EcologyÌý87: 1192-1204.Ìý
Tornabene, B. J., Blaustein, A. R., Briggs, C. J., Calhoun D. M., Johnson, P. T. J., McDevitt-Galles, T., Rohr, J. R., and J. T. Hoverman (2018).ÌýAssessing the influence of landscape and environmental factors on ranavirus epidemiology in a California amphibian assemblage.ÌýFreshwater BiologyÌý63: 639-651.Ìý
Wilber, M. Q., Johnson, P. T. J. and C. J. BriggsÌý(2018). When amphibian chytrid fungus invades: integrating theory and data to understand disease-induced amphibian declines. Chapter 12 in the edited volumeÌýWildlife Disease Ecology: Linking Theory to Data and Application.ÌýÌý
Paull, S. H. and P. T. J. Johnson (2018). How temperature, pond-drying, and nutrients influence parasite infection and pathology.ÌýEcoHealth 15: 396-408.Ìý
Preston, D. E., Hedman, H. D. and P. T. J. JohnsonÌý(2018). Nutrient availability and invasive fish jointly drive community dynamics in an experimental aquatic system.ÌýEcosphereÌý9(3): e02153.Ìý
Calhoun, D. M., McDevitt-Galles, T.Ìýand P. T. J. JohnsonÌý(2018). Parasites of invasive freshwater fishes and the factors affecting their richness and abundance.ÌýFreshwater ScienceÌý37: 134-146.Ìý
McDevitt-Galles, T., Calhoun, D. M.,ÌýandÌýP. T. J. Johnson (2018). Parasite richness and abundance within aquatic macroinvertebrates: testing the role of host-and habitat-level factors. Ecosphere 9:Ìýe02188.Ìý
Stutz, W. E., Blaustein, A. R., Briggs, C. J., Hoverman, J. T., Rohr, J. R., and P. T. J. Johnson (2018). Using multi-response models to investigate pathogen coinfections across scales: Insights from emerging diseases of amphibians.ÌýMethods in Ecology and EvolutionÌý9: 1109-1120.Ìý
Orlofske, S. A., Flaxman, S. M., Joseph, M. B., Fenton, A., Melbourne, B. A. and P. T. J. Johnson (2018). Experimental investigation of alternativeÌýtransmission functions: quantitative evidence for the importance of non-linear transmission dynamics in host-parasite systems.ÌýJournal of Animal EcologyÌý87: 703-715.Ìý
Haas, S. E., Reeves, M. K., Pinkney, A. E., and P. T. J. Johnson (2018). Continental-extent patterns in amphibian malformations linked to parasites, chemical contaminants, and their interactions.ÌýGlobal Change BiologyÌý24: e275-e288.Ìý
Johnson, P. T. J., Stanton, D. E., Forshay, K. J., andÌýD. M. Calhoun (2018). Vertically challenged: how disease suppressesÌýDaphinaÌývertical migration behavior.ÌýLimology and OceanographyÌý63: 886-896.Ìý
Mihaljevic, J. R., Hoye, B., and P. T. J. Johnson (2018).ÌýParasite metacommunities: evaluating the roles of host community composition and environmental gradients in structuring symbiont communities within amphibians.ÌýJournal of Animal EcologyÌý87: 354-368.ÌýÌý
Koprivnikar, J., Riepe, T. B., Calhoun, D. M. and P. T. J. JohnsonÌý(2018).ÌýWhether larval amphibians school does not affect the parasiteÌýaggregation rule: testing the effects of host spatial heterogeneity in field and experimental studies.ÌýOikosÌý127: 99–110.Ìý
Giurfa, M., Schnell, A., Vedhara, K., Wystrach, A., Abell, J.,ÌýDukas, R., Mann,ÌýJ., Scholey, A., Plotnik, J.,ÌýTaylor, A. H., Johnson,ÌýS. K., Johnson,ÌýP. T. J., Hopper, L. M.,ÌýGraham, K, Hobaiter, C.,ÌýByrne, R. W., Kaminsk, J.,ÌýWynne, C. D., and Z. Todd (2018). The psychologists’ tree of life. The Psychologist 31:Ìý28-53.Ìý
2017
Hannon, E. R., Calhoun, D. M., Chadalwada, S. and P. T. J. Johnson (2017). Circadian rhythms of trematode parasites: applying mixed models to test underlying patterns.ÌýParasitologyÌý145: 1-9.Ìý
Calhoun, D. M., Bucciarelli, G. M., Kats, L. B., Zimmer, R. K. and P. T. J. JohnsonÌý(2017). Noxious newts and their natural enemies: Experimental effects of tetrodotoxin exposure on trematode parasites and aquatic macroinvertebrates.ÌýToxiconÌý137:120-127.Ìý
Johnson, P. T. J., and M. Q. WilberÌý(2017). Biological and statistical processes jointly drive population aggregation: using host-parasiteÌýinteractions to understand Taylor's power law.ÌýProceedings of the Royal Society Series BÌý284: 20171388.Ìý
McCaffrey, K. and P. T. J. Johnson (2017). Drivers of symbiont diversity in freshwater snails: a comparative analysis of resource availability, community heterogeneity, and colonization opportunities.ÌýOecologiaÌý183: 927-938 [Highlighted Student Research].Ìý
Preston, D. L., Hedman, H. D., Esfahani, E. R., Pena, E. M., Boland, C. E., Lunde, K. B. and P. T. J. Johnson (2017). Responses of a wetland ecosystem to the controlled introduction of invasive fish.ÌýFreshwater BiologyÌý62: 767-778.Ìý
Wilber, M. Q., Johnson, P. T. J., and C. J. Briggs (2017). When can we infer mechanism from parasite aggregation? A constraint-based approach to disease ecology.ÌýEcologyÌý98: 688-702.Ìý
2016
Stephens, P. E., Altizer, S., Smith, K. F., Aguirre, A. A., Brown, J. H., Budischak, S., Byers, J. E., Dallas, T., Davies, J. T., Drake, J. M., Ezenwa, V., Farrel, M., Gittleman, J. L., Han, B., Huang, S., Hutchinson, R. A., Johnson, P. T. J., Nunn, C. L., Onstad, D., Park, A., Vazquez-Prokopec, G. M., Schmidt, J. P. and R. Poulin (2016). The macroecology of infectious diseases: a new perspective on global-scale drivers of pathogen distributions and impacts.ÌýEcology LettersÌý19: 1159-1171.ÌýÌý
Wood, C. L. and P. T. J. Johnson (2016). How does space influence the relationship between host and parasite diversity?ÌýJournal of ParasitologyÌý102: 485-494.ÌýÌý
Preston, D. L., Caine, N., McKnight, D. M., Williams, M. W., Hell, K., Miller, M. P., Hart, S. J. and P. T. J. Johnson (2016). Climate regulates alpine lake ice cover phenology and aquatic ecosystem structure.ÌýGeophysical Research LettersÌý43: 5353-5360.ÌýÌý
Grant, E. H. C., Willer, D. A. W., Schmidt, B. R., Adams, M. J., Amburgey, S. M., Chambert, T., Cruickshank, S. S., Fisher, R. N., Green, D. M., Hossack, B. R., Johnson, P. T. J., Joseph, M. B., Rittenhouse, T., Ryan, M., Waddle, J. H., Walls, S. C., Bailey, L. L., Fellers, G. M., Gorman, T. A., Ray, A. M., Pilliod, D. S., Prices, S. J., Saenz, D., Sadinski, W. and E. Muths (2016). Quantitative evidence for the effects of multiple drivers on continental-scale amphibian declines.ÌýScientific ReportsÌý6: 25625.ÌýÌý
Altman, K. A., Paull, S. H., Johnson, P. T. J., Golembieski, M. N., Stephens, J. P., LaFonte, B. E., and T. R. Raffel (2016). Host and parasites thermal acclimation responses depend on the stage of infection.ÌýJournal of Animal EcologyÌý85: 1014-2014.ÌýÌý
Koprivnikar, J. and P. T. J. Johnson (2016). The rise of disease ecology and its implications for parasitology -- a review.ÌýJournal of ParasitologyÌý102: 397-409.ÌýÌý
Johnson P. T. J., Wood, C. L., Joseph, M. B., Preston, D. L., Haas, S. E., and Y. P. Springer (2016). Habitat heterogeneity drives the host diversity-begets-parasite diversity relationship: evidence from experimental and field studies.ÌýEcology LettersÌý19: 752-761.ÌýÌý
Mischler, J. A., Johnson, P. T. J., McKenzie, V. J., and A. R. Townsend (2016). Parasite infection alters nitrogen cycling at the ecosystem scale.ÌýJournal of Animal EcologyÌý85: 817-828.ÌýÌý
Calhoun, D. M., Woodhams, D., Howard, C., LaFonte, B. E., Gregory, J. R., and P. T. J. Johnson (2016). Role of antimicrobial peptides in amphibian defense against trematode infection.ÌýEcoHealthÌý13: 383-391.ÌýÌý
Preston, D. L., Mischler, J., Townsend, A. and P. T. J. Johnson (2016). Disease ecology meets ecosystem science.ÌýEcosystemsÌý19: 737-748.ÌýÌý
Hannon, E. R., Kinsella, J. M., Calhoun, D. M., Joseph, M. B. and P. T. J. Johnson (2016). Endohelminths in bird hosts from northern California and an analysis of the role of life history traits on parasite richness.ÌýJournal of ParasitologyÌý102: 199-207.ÌýÌý
Joseph, M. B., Preston, D. L. and P. T. J. Johnson (2016). Integrating occupancy models and structural equation models to understand species occurrence.ÌýEcologyÌý97: 765-775.ÌýÌý
Springer Y. P., et al. (2016). Tick-, mosquito-, and rodent-borne parasite sampling designs for the National Ecological Observatory Network.ÌýEcosphereÌý7:e01271. 10.1002/ecs2.1271ÌýÌý
2015
Johnson, P. T. J., Ostfeld, R. S. and F. Keesing (2015). Frontiers in research on biodiversity and disease.ÌýEcology LettersÌý18: 1119-1133.ÌýÌý
Johnson, P. T. J., De Roode, J. C. and A. Fenton (2015). Why infectious disease biology needs community ecology.ÌýScienceÌý349: 1259504.ÌýÌý
LaFonte, B. E., Raffel, T. R., Monk, I. N. and P. T. J. Johnson (2015). Quantifying larval trematode infections in hosts: a comparison of method validity and evaluation of their implications for infection success.ÌýExperimental ParasitologyÌý154: 155-162.ÌýÌý
Calhoun, D. M., Schaffer, P. A., Gregory, J. R., Hardy, K. M., and P. T. J. Johnson (2015). Experimental exposure of bluegill toÌýRibeiroia ondatrae: histopathology and hematological responses.ÌýJournal of Aquatic Animal HealthÌý27: 185-191.ÌýÌý
Orlofske, S. A., Jadin, R. C. and P. T. J. Johnson (2015). It's a predator-eat-parasite world: how characteristics of predator, parasite and environment affect consumption.ÌýOecologiaÌý178: 537-547.ÌýÌý
Huver, J. R., Koprivnikar, J., Johnson, P. T. J. and S. Whyard (2015). Development and application of an eDNA method to detect and quantify a pathogenic parasite in aquatic ecosystems.ÌýEcological ApplicationsÌý25: 991-1002.ÌýÌý
Mihaljevic, J. R., Joseph, M. B., and P. T. J. Johnson (2015). Using multi-species occupancy models to improve the characterization and understanding of metacommunity structure.ÌýEcologyÌý96: 1783-1792.ÌýÌý
Stewart-Koster, B., Olden, J. D., and P. T. J. Johnson (2015). Integrating landscape connectivity and invasion vulnerability to guide offensive and defensive invasive species management.ÌýJournal of Applied EcologyÌý52: 366-378.ÌýÌý
Wood, C. L. and P. T. J. Johnson (2015). A world without parasites: Exploring the hidden ecology of infection.ÌýFrontiers in Ecology and the EnvironmentÌý13: 425-434.ÌýÌý
Paull, S. H., Raffel, T. R., LaFonte, B. E. and P. T. J. Johnson (2015). How temperature shifts affect parasite production: Testing the roles of thermal stress and acclimation.ÌýFunctional EcologyÌý29: 941-950.ÌýÌý
2014
Preston, D. L., Boland, C., Hoverman, J. T. and P. T. J. Johnson (2014). Natural enemy ecology: comparing the effects of predation risk, infection risk and disease on host behavior.ÌýFunctional EcologyÌý28: 1472-1481.ÌýÌý
Johnson, P. T. J. and J. T. Hoverman (2014). Heterogeneous hosts: how variation in host size, behaviour, and immunity affect parasite aggregation.ÌýJournal of Animal EcologyÌý83: 1103-1112.ÌýÌý
Koprivnikar, J., Paull, S. H. and P. T. J. Johnson (2014). Combined influence of hydroperiod and parasitism on larval amphibian development.ÌýFreshwater ScienceÌý33: 941-949. Ìý
Orlofske, S. A., Jadin, R. C., Hoverman, J. T. and P. T. J. Johnson (2014). Predation and disease: understanding the effects of predators at multiple trophic levels on pathogen transmission.ÌýFreshwater BiologyÌý59: 1064-1075.ÌýÌý
Johnson, P. T. J., Koprivnikar, J., Orlofske, S. A., Melbourne, B. A. and B. E. LaFonte (2014). Making the right choice: testing the drivers of asymmetric infections within hosts and their consequences for pathology.ÌýOikosÌý123:875-885.Ìý
Paull, S. H. and P. T. J. Johnson (2014). Experimental warming drives a seasonal shift in the timing of host-parasite dynamics with consequences for disease risk.ÌýEcology LettersÌý17: 445-453.Ìý
Preston, D. L., Orlofske, S. A. and P. T. J. Johnson (2014). Complex life cycles, ontogenetic niche shifts and the role of parasites in a pond food web.ÌýOecologiaÌý174: 953-965.ÌýÌý
2013
Johnson, P. T. J., Preston, D. L., Hoverman, J. T., and B. E. LaFonte (2013). Host and parasite diversity jointly regulate pathogen transmission in complex communities.ÌýProceedings of the National Academy of SciencesÌý110: 16916-16921.Ìý
Reeves, M., Medley, K., Pinkney, A., Holyoak, M., Johnson, P. T. J. and M. Lannoo (2013). Localized hotspots drive continental geography of abnormal amphibians. PLoS ONE 8: e77467.ÌýÌý
Altizer, S., Ostfeld, R. S., Harvell, C. D., Johnson, P. T. J., and S. Kutz (2013). Climate change and infectious diseases: from evidence to a predictive framework.ÌýScienceÌý341: 514-519.Ìý
Rohr, J. R., Blaustein, A. R., Paull, S. H., Johnson, P. T. J., Raffel, T., and S. Young (2013). Using physiology to understand climate-driven changes in disease and their implications for conservation.ÌýConservation PhysiologyÌý1: 1-15.Ìý
LaFonte, B. E. and P. T. J. Johnson (2013). Experimental infection dynamics: using immunosuppression and in vivo parasite tracking to understand host resistance in an amphibian-trematode system.ÌýJournal of Experimental BiologyÌý216: 3700-3708.ÌýÌý
Lambden, J. and P. T. J. Johnson (2013). Quantifying the biomass of parasites to understand their role in aquatic communities.ÌýEcology and EvolutionÌý3: 2310-2321.Ìý
Hoverman, J. T., Hoye, B. and P. T. J. Johnson (2013). Does timing matter? How priority effects influence the outcome of parasite interactions within hosts.ÌýOecologiaÌý173: 1471-1480.ÌýÌý
Reeves, M., Medley, K., Pinkney, A., Holyoak, M., Johnson, P. T. J. and M. Lannoo (2013). Localized hotspots drive continental geography of abnormal amphibians.ÌýPLoS ONEÌý8: e77467.ÌýÌý
Pinto, H. A., Jadin, R. C., Orlofske, S. A., Johnson, P. T. J. and A. L. Melo (2013).ÌýBiomphalaria stramineaÌý(Mollusca: Planorbidae) as an intermediate host forÌýRibeiroiaÌý(Trematoda: Psilostomidae) in Brazil.ÌýJournal of ParasitologyÌý99: 914-918.Ìý
Joseph, M. B., Mihaljevic, J. R., Arellano, A. L., Kueneman, J. G., Preston, D. L., Cross, P. C. and P. T. J. Johnson (2013). Taming wildlife disease: bridging the gap between science and management.ÌýJournal of Applied EcologyÌý50: 702-712.Ìý
Peterson, A. C., Richgels, K. L. D., Johnson, P. T. J., and V. J. McKenzie (2013). Investigating the dispersal routes used by an invasive amphibian,Lithobates catesbeianus, in human-dominated landscapes.ÌýBiological InvasionsÌý15: 2179-2191.Ìý
Richgels, K. L. D., Hoverman, J. T., and P. T. J. Johnson (2013). Evaluating community structure and the role of regional and local processes in larval trematode metacommunities ofÌýHelisoma trivolvis.ÌýEcographyÌý36: 854-863.Ìý
Thieltges, D. W., Amundsen, P. A., Hechinger, R. F., Johnson, P. T. J., Lafferty, K. D., Mouritsen, K. N., Preston, D. L., Reise, K., Zander, C. D. and R. Poulin (2013). Parasites as prey in aquatic food webs: implications for predator infection and parasite transmission.ÌýOikosÌý122: 1473-1482.Ìý
Johnson, P. T. J., Preston, D. L., Hoverman, J. T., and K. L. D. Richgels (2013). Biodiversity reduces disease through predictable changes in host community competence.ÌýNatureÌý494: 230-234.ÌýÌý
Preston, D. L., Orlofske, S. A., Lambden, J. P. and P. T. J. Johnson (2013). Biomass and productivity of parasites in pond ecosystems.ÌýJournal of Animal EcologyÌý82: 509-517.Ìý
Paull, S. and P. T. J. Johnson (2013). Can we predict climate-driven changes to disease dynamics? Applications for theory and management in the face of uncertainty.ÌýWildlife Conservation in a Changing ClimateÌý(J.F. Brodie, E. Post and D. Doak, eds.). University of Chicago Press.Ìý
McMahon, T. A., Brannelly, L. A., Chatfield, M. W. H., Johnson, P. T. J., Joseph, M. B., McKenzie, V. J., Richards-Zawacki, C. L. and J. R. Rohr (2013). Chytrid fungusÌýBatrachochytrium dendrobatidisÌýhas non-amphibian hosts and releases chemicals that cause pathology in the absence of infection.ÌýProceedings of the National Academy of SciencesÌý110: 210-215.Ìý
Johnson, P. T. J., Hoverman, J. T., McKenzie, V. J., Blaustein, A. R. and K. L. D. Richgels (2013). Urbanization and wetland communities: applying metacommunity theory to understand local and landscape effects.ÌýJournal of Applied EcologyÌý50: 34-42.ÌýÌý
Hoverman, J. T., Paull, S. H., and P. T. J. Johnson (2013). Does Climate Change Increase the Risk of Disease? Analyzing Published Literature to Detect Climate–Disease Interactions. In Pielke, R. Sr. (ed.),ÌýClimate Vulnerability: Understanding and Addressing Threats to Essential Resources, Vol. 4., Academic Press. DOI:Ìý.
2012
Paull, S. H., LaFonte, B., and P. T. J. Johnson (2012). Temperature-driven shifts in a host-parasite interaction drive nonlinear changes in disease risk.ÌýGlobal Change BiologyÌý18: 3558-3567.ÌýÌý " color="blue" size="small" style="regular" icon="fa-file-pdf-o"]PDF
Johnson, P. T. J. and J. T. Hoverman (2012). Parasite diversity and coinfection determine pathogen infection success and host fitness.ÌýProceedings of the National Academy of SciencesÌý109: 9006-9011.Ìý
Koprivnikar, J., Marcogliese, D. J., Rohr, J. R., Orlofske, S. A., Raffel, T. R. and P. T. J. Johnson (2012). Macroparasite infections of amphibians: what can they tell us?ÌýEcoHealthÌý9: 342-360.ÌýÌý
Lunde, K. B., Resh, V. T, and P. T. J. Johnson (2012). Using a whole-ecosystem manipulation to understand host-parasite interactions and how they vary with study venue.ÌýEcosphereÌý3: 84.Ìý
Hoverman, J. T., Mihaljevic, J. R., Richgels, K. L. D., Kerby, J. L. and P. T. J. Johnson (2012). Widespread co-occurrence of virulent pathogens within California amphibian communities.ÌýEcoHealthÌý9: 288-292.ÌýÌý
Preston, D. L., Orlofske, S. A., McLaughlin, J. P. and P. T. J. Johnson (2012). Food web including infectious agents for a California freshwater pond.EcologyÌý93: 1760. (data paper;ÌýEcological ArchivesÌýE093-153-D1).Ìý
Paull, S. and P. T. J. Johnson (2012). Can we predict climate-driven changes to disease dynamics? Applications for theory and management in the face of uncertainty. Wildlife Conservation in a Changing Climate (J. F. Brodie, E. Post and D. Doak, eds.). University of Chicago Press.
Lunde, K. B. and P. T. J. Johnson (2012). A practical guide for the study of amphibian malformations and their causes.ÌýJournal of HerpetologyÌý46: 429-441.Ìý
Johnson, P. T. J. and J. T. Hoverman (2012). Parasite diversity and coinfection drive pathogen infection success and host fitness. Proceedings of the National Academy of Sciences 109: 9006-9011. [Faculty of 1000 Recommended] [2013 Mercer Award from Ecological Society of America].
Preston, D. L., Henderson, J. S. and P. T. J. Johnson (2012). Community ecology of invasions: direct and indirect effects of multiple invasive species on aquatic communities.ÌýEcologyÌý93: 1254-1261.ÌýÌý
Orlofske, S. A., Jadin, R., Preston, D. L., and P. T. J. Johnson (2012). Parasite transmission in complex communities: predators and alternative hosts alter pathogenic infections in amphibians.ÌýEcologyÌý93: 1247-1260.Ìý
Preston, D. L. and P. T. J. Johnson (2012). Importance of native amphibians in the diet and distribution of the aquatic garter snake (Thamnophis atratus) in the San Francisco Bay Area of California.ÌýJournal of HerpetologyÌý46: 221-227.Ìý
Blaustein, A. R., Gervasi, S. S., Johnson, P. T. J., Hoverman, J. T., Belden, L. K., Bradley, P. W. and G. Y. Xie (2012). Ecophysiology meets conservation: understanding the role of disease in amphibian population declines.ÌýÌýPhilosophical Transactions of the Royal Society, Series BÌý367: 1688-1707.Ìý
Johnson, P. T. J., Rohr, J. R., Hoverman, J. T., Kellermanns, E., Bowerman, J. and K. B. Lunde (2012). Living fast and dying of infection: host life history drives interspecific variation in infection and disease risk.ÌýEcology LettersÌý15: 235-242.ÌýÌý
Paull, S. H., Song, S. J., McClure, K. M., Sackett, L. C., Kilpatrick, A. M. and P. T. J. Johnson (2012). From superspreaders to disease hotspots: linking transmission across hosts and space.ÌýFrontiers in Ecology and the EnvironmentÌý10: 75-82.Ìý
Johnson, P. T. J., Preston, D. L., Hoverman, J. T., Henderson, J. S., Paull, S. H., and Redmond, M. D. (2012). Species diversity reduces parasite infection through cross-generational effects on host density.ÌýEcologyÌý93: 56-64.Ìý
2011
Hartson, R. B., Orlofske, S. A., Keller, V., Dillon, Jr., R. T., and P. T. J. Johnson (2011). Land use and wetland spatial position jointly determine amphibian parasite communities.ÌýEcoHealthÌý8: 485-500.ÌýÌý
Olden, J. D., Vander Zanden, M. J., and P. T. J. Johnson (2011). Assessing ecosystem vulnerability to invasive rusty crayfish (Orconectes rusticus) in freshwater environments.ÌýEcological ApplicationsÌý21: 2587-2599.Ìý
Redmond, M. D., Hartson, R. B., Hoverman, J. T., de Jesus-Villaneueva, C. N. and P. T. J. Johnson (2011). Experimental exposure ofÌýHelisoma trivolvisÌýandÌýBiomphalaria glabrataÌý(Gastropoda) toÌýRibeiroia ondatraeÌý(Trematoda).ÌýJournal of ParasitologyÌý97: 1055-1061.ÌýÌý
Goodman, B. A. and P. T. J. Johnson (2011). Disease and the extended phenotype: parasites control host performance and survival through induced changes in body plan.ÌýPLoS ONEÌý6: e20193.Ìý
Locke, S. A., McLaughlin, J. D., Lapierre, A. R., Johnson, P. T. J. and D. J. Marcogliese (2011). Linking larvae and adults ofÌýApharyngostrigea cornu,Hysteromorpha trilobaÌýandÌýAlaria mustelaeÌý(Diplostomoidea, Digenea) using molecular data.ÌýJournal of ParasitologyÌý97: 846-851.ÌýÌý
Rohr, J. R., Johnson, P. T. J., Paull, S. H., Raffel, T. R., Dobson, A. P., Kilpatrick, A. M., Ruiz-Moreno, D., Pascual, M. and M. B. Thomas (2011). Frontiers in climate change-disease research.ÌýTrends in Ecology and EvolutionÌý26: 270-277.Ìý
Johnson, P. T. J., Kellermanns, E., and J. Bowerman (2011). Critical windows of disease risk: amphibian pathology driven by developmental changes in host resistance and tolerance.ÌýFunctional EcologyÌý25: 726-734.ÌýÌý
Romansic, J. M., Johnson, P. T. J., Searle, C. L., Johnson, J. E., Tunstall, T., Han, B. A., Rohr, J. R. and A. R. Blaustein (2011). Individual and combined effects of multiple pathogens on Pacific treefrogs.ÌýOecologiaÌý166: 1029-1041.Ìý
Peñalva-Arana, D. C., Forshay, K. J., Johnson, P. T. J., Strickler, J. R. and S. I. Dodson (2011). Chytrid infection reduces thoracic beat and heart rate ofÌýDaphnia pulicaria.ÌýHydrobiologiaÌý668: 147-154.ÌýÌý
Blaustein, A. R., Han, B. A., Relyea, R. A., Johnson, P. T. J., Buck, J. C., Gervasi, S. S. and L. B. Kats (2011). The complexity of amphibian declines: understanding the role of cofactors in driving amphibian losses.ÌýAnnals of the New York Academy of SciencesÌý1223: 108-119.ÌýÌý
Johnson, P. T. J. and S. Paull (2011). The ecology and emergence of disease in fresh waters.ÌýFreshwater BiologyÌý56: 638-657.ÌýÌý
Paull, S. and P. T. J. Johnson (2011). How will climate change affect host-parasite interactions?ÌýUnderstanding differential responses of hosts and parasites.ÌýFreshwater BiologyÌý56: 767-778.ÌýÌý
Johnson, P. T. J., McKenzie, V. J., Peterson, A. C., Kerby, J. L., Brown, J., Blaustein, A. R. and T. Jackson (2011). Regional decline of an iconic amphibian associated with elevation, land-use change, and invasive species.Conservation BiologyÌý25: 556-566.ÌýÌý
Goodman, B. A. and P. T. J. Johnson (2011). Ecomorphology and disease: understanding the cryptic effects of parasitism on host habitat use, thermoregulation, and predator avoidance.ÌýEcologyÌý92: 542-548.ÌýÌý
Johnson, P. T. J. and I. D. Buller (2011). Parasite competition hidden by correlation coinfections: using field studies and experiments to understand parasite interactions.ÌýEcologyÌý92: 535-541.ÌýÌý
Daly, E. W. and P. T. J. Johnson (2011). Beyond immunity: quantifying the effects of host anti-parasite behavior on parasite transmission.ÌýOecologiaÌý165: 1043-1050.ÌýÌý
2010
Preston, D. L. and P. T. J. Johnson (2010). Ecological consequences of parasitism.ÌýNature KnowledgeÌý1: 39.ÌýÌý
Johnson, P. T. J. and J. Bowerman (2010). Do predators cause frog deformities? The need for an eco-epidemiological approach.ÌýJournal of Experimental ZoologyÌý314B: 515-518.ÌýÌý
Krugner-Higby, L., Haak, D., Johnson, P. T. J., Shields, J. D., Jones, W. M., Reece, K. S., Meinke, T., Gendron, A. and J. A. Rusak (2010). Ulcerative disease outbreak in crayfishÌýOrconectes propinquusÌýlinked toÌýsaprolegnia australisÌýin Big Muskellunge Lake, Wisconsin.ÌýDiseases of Aquatic OrganismsÌý91: 57-66.Ìý
Johnson, P. T. J.,ÌýDobson, A., Lafferty, K. D., Marcogliese, D., Memmott, J., Orlofske, S., Poulin, R., and D. W. Thieltges (2010). When parasitesÌýbecome prey: ecological and epidemiological significance.ÌýTrends in Ecology & EvolutionÌý25: 362-371.ÌýÌý
Johnson, P. T. J., and D. W. Thieltges (2010). Diversity, decoys and the dilution effect: how ecological communities affect disease risk.ÌýJournal of Experimental BiologyÌý213: 961-970.ÌýÌý
Johnson, P. T. J., Townsend, A. R., McKenzie, V. J., Howarth, R., Rejmankova, E. and P. Glibert (2010).ÌýLinking environmental nutrient enrichment and disease emergence in humans and wildlife.ÌýEcological ApplicationsÌý20:16-29.Ìý
Johnson, P. T. J., Reeves, M. K., Krest, S. K. and A. E. Pinkney (2010). A decade of deformities: advances in our understanding of amphibian malformations and their implications.ÌýInÌýSparling, Linder, Bishop, Krest (eds),ÌýEcotoxicology of Amphibians and Reptiles, 2nd edtion.ÌýSETAC Press, Pensacola FL.Ìý
Blaustein, A. R. and P. T. J. Johnson (2010). When an infection turns lethal.ÌýNatureÌý465: 881-882.Ìý
Solomon, C. T., Olden, J. D., Johnson, P. T. J., Dillon, R. T. Jr. and M. J. Vander Zanden (2010).ÌýDistribution and community-level effects of the Chinese mystery snail (Bellamya chinensis) in northern Wisconsin lakes.ÌýBiological InvasionsÌý12: 1591-1605.Ìý
Bowerman, J., Johnson, P. T. J., and T. Bowerman (2010). Sublethal predators and their injured prey: linking aquatic predators and severe limb abnormalities in amphibians.ÌýEcologyÌý91: 242-251.ÌýÌý
Gleason, F. H., Marano, A. V., Johnson, P. T. J., and W. W. Martin (2010). Blastocladian parasites of invertebrates.ÌýFungal Biology ReviewsÌý24: 56-67.ÌýÌý
2009
Gross, J. A., Johnson, P. T. J., Prahl, L. K. and W. H. Karasov (2009).ÌýÌýCritical period of sensitivity for effects of cadmium on frog growth and development.ÌýÌýEnvironmental Toxicology and ChemistryÌý28: 1227-1232.ÌýÌý
Johnson, P. T. J. (2009). The meaning behind malformed frogs.ÌýConservation BiologyÌý23: 508-511.Ìý
Johnson, P. T. J., Ives, A. R., Lathrop, R. C. and S. R. Carpenter (2009).ÌýÌýLong-term disease dynamics in lakes: causes and consequences of chytrid infections inÌýDaphniaÌýpopulations.ÌýEcologyÌý90: 132-144.Ìý
Johnson, P. T. J., Lund, P. J., Hartson, R. B., and T. P. Yoshino (2009). Community diversity reducesÌýSchistosoma mansoniÌýtransmission and human infection risk.ÌýProceedings of the Royal Society of London, Series BÌý276: 1657-1663.ÌýÌý
Johnson, P. T. J., Olden, J. D., Solomon, C. T. and M. J. Vander Zanden (2009). Interactions amoung invaders: community and ecosystem effects of multiple invasive speciesÌýin an experimental aquatic system.ÌýOecologiaÌý159: 161-170.Ìý
Johnson, P. T. J. and R. B. Hartson (2009).ÌýAll hosts are not equal: explaining differential patterns of malformations in an amphibian community.ÌýJournal of Animal EcologyÌý78: 191-201.Ìý
2008
Johnson, P. T. J. and V. J. McKenzie (2008). Effects of environmental change on helminth infections in amphibians: exploring the emergence ofÌýRibeiroiaÌýandÌýEchinostomaÌýinfections in North America.ÌýChapter 11 in Fried, B. and R. Toledo, The Biology of Echinostomes, Springer.ÌýÌý
Johnson, P. T. J., Hartson, R. B., Larson, D. J. and D. R. Sutherland (2008). Diversity and disease: community structure drives parasites transmission nad host fitness.ÌýEcology LettersÌý11: 1017-1026.Ìý
Forshay, K. J., Johnson, P. T. J., Stock, M., Penalva, C. and S. I. Dodson (2008).ÌýFestering food:Ìýchytridiomycete pathogen reduces quality ofÌýDaphniaÌýhosts as a food resource.ÌýEcologyÌý89: 2692-2699.ÌýÌý
Refardt, D., Decaestecker, E., Johnson, P. T. J., and J. Vavra (2008).ÌýMorphology, molecular phylogeny, andÌýecologyÌýofÌýBinucleata daphniaÌýn. g., n. sp. (Fungi: Microsporidia), a parasite ofÌýDaphnia magnaÌýStraus, 1820 (Crustacea: Branchiopoda).ÌýJournal of Eukaryotic MicrobiologyÌý55: 393-408.ÌýÌý
Lafferty, K. D., Allesina, S., Arin, M., Briggs, C. J., DeLeo, G., Dobson, A. P., Dunne, J. A., Johnson, P. T. J., Kuris, A. M., Marcogliese, D. J., Martinez, N. D., Memmott, J., Marquet, P. A., McLaughlin, J. P., Mordecai, E. A., Pascual, M., Poulin, R., and D. W. Thieltges (2008). Parasites in food webs: the ultimate missing links.ÌýEcology LettersÌý11: 533-546.ÌýÌý
Johnson, P. T. J., Olden, J. D. and M. J. Vander Zanden (2008). Dam invaders: hydrologic impoundments enhance ecosystem invasibility.ÌýFrontiers in Ecology and the EnvironmentÌý6: 357-363. Ìý
Perkins, S., Altizer, S., Bjornstad, O., Burdon, J., Clay, K., Gomez-Aparicio, L., Jeschke, J., Johnson, P. T. J., Lafferty, K., Malstrom, C., Martin, P., Power, A., Thrall, P., Strayer, D. and M. Uriarte (2008). Infectious disease in invasion biology.ÌýChapter 8 in R. S. Ostfeld, F. Keesing, and V. T. Eviner,ÌýInfectious disease ecology: effects of ecosystems on disease and of disease on ecosystems. Princeton University Press, Princeton, NJ.Ìý
Johnson, P. T. J. and S. R. Carpenter (2008). Influence of eutrophication on disease in aquatic ecosystems: patterns, processes, and predictions. Chapter 4 (pp. 71-99) in R. S.ÌýOstfeld, F. Keesing and V. T.ÌýEviner (eds.),ÌýInfectious disease ecology: effects of ecosystems on disease and of disease on ecosystems. Princeton University Press, Princeton, NJ.Ìý
2007
Johnson, P. T. J., Chase, J. M., Dosch, K. L., Gross, J., Hartson, R. B., Larson, D., Sutherland, D. R. and S. R. Carpenter (2007).Ìý Aquatic eutrophicationÌýpromotes pathogenic infection in amphibians.ÌýProceedings of the National Academy of SciencesÌý104: 15781-15786.Ìý
Roth, B. M., Kaplan, I. C., Sass, G. G., Johnson, P. T. J., Marburg, A. E., Yannarell, A. C., Havlicek, T. D., Willis, T. V., Turner, M. G. and S. R. Carpenter. (2007). Linking terrestrial and aquatic ecosystems: the role of woody habitat in lake food webs.ÌýEcological ModellingÌý203: 439-452.Ìý
Carpenter, S. R. B. J. Benson, R. Biggs, J. W. Chipman, J. A. Foley, S. A. Golding, R. B. Hammer, P. C. Hanson, P. T. J. Johnson, A. M. Kamarainen, T. K. Kratz, R. C. Lathrop, K. D. McMahon, B. Provencher, J. A. Rusak, C. T. Solomon, E. H. Stanley, M. G. Turner, M. J. Vander Zanden, C. H. Wu and H. Yuan.Ìý (2007).ÌýUnderstanding regional change: A comparison of two lake districts.ÌýBioScienceÌýÌý57: 323-335.Ìý
2006
Johnson, P. T. J. (2006).ÌýAmphibian diversity: decimation by disease.ÌýProceedings of the National Academy of Sciences, USA 103: 3011-3012.Ìý
Johnson, P. T. J., Stanton, D. E., Preu, E. R., Forshay, K. J. and S. R. Carpenter. (2006). Dining on disease: how interactions between infection and environment affect predation risk.ÌýEcologyÌý87: 1973-1980.Ìý
Johnson, P. T. J., Preu, E. R., Sutherland, D. R., Romansic, J., Han, B. and A. R. Blaustein. (2006). Adding infection to injury: Synergistic effects of predation and parasitism on salamander limb malformations.ÌýEcologyÌý87: 2227-2235.Ìý
Johnson, P. T. J., Longcore, J. E., Stanton, D. E., Carnegie, R. B., Shields, J. D. and E. R. Preu. (2006). ChytridÌýinfections ofÌýDaphnia pulicaria: Development, ecology, pathology and phylogeny ofÌýPolycaryum laeve.ÌýFreshwater BiologyÌý51: 634-648.Ìý
2005
Wilson, W. D., Johnson, P. T. J., Sutherland, D. R., Moné, H. and E. S. Loker. (2005). A molecular phylogenetic study of the genusÌýRibeiroiaÌý(Digenea): trematodes known to cause limb malformations in amphibians. Journal of Parasitology 91: 1040-1045.Ìý
Fried, B. and P. T. J. Johnson (2005). In vitro excystment of the metacercariae ofÌýRibeiroia ondatrae. Parasitology Research 95: 293-294.Ìý
Johnson, P. T. J. and K. B. Lunde (2005). Parasite infection and limb malformations: A growing problem in amphibian conservation. Amphibian Declines: the Conservation Status of United States Species , M. J. Lannoo (ed). University of California Press: 124-138.Ìý
2004
Johnson, P. T. J. and J. M. Chase (2004). Parasites in the food web: linking amphibian malformations and aquatic eutrophication.ÌýEcology LettersÌý7: 521-526.ÌýÌý
Johnson, P. T. J., D. R. Sutherland, J. M. Kinsella and K. B. Lunde (2004). Review of the trematode genusÌýRibeiroiaÌý(Psilostomidae): Ecology, life history and pathogenesis with special emphasis on the amphibian malformation problem.ÌýAdvances in ParasitologyÌý57: 191-253.ÌýÌý
2003
Blaustein, A. R. and P. T. J. Johnson (2003). Explaining frog deformities.ÌýScientific AmericanÌý288: 60-65.ÌýÌý
Blaustein, A. R. and P. T. J. Johnson (2003). The complexity of deformed amphibians.ÌýFrontiers in Ecology and the EnvironmentÌý1: 87-94.ÌýÌý
Johnson, P. T. J., Lunde, K. B., Zelmer, D. A. and J. K. Werner (2003). Limb deformities as an emerging parasitic disease in amphibians: Evidence from museum specimens and resurvey data.ÌýConservation BiologyÌý17: 1724-1737.Ìý
Johnson, P. T. J. (2003). Biased sex ratios in fiddler crabs (Brachyura, Ocypodidae): A review and evaluation of the influence of sampling method, size class, and sex-specific mortality.ÌýCrustaceanaÌý76: 559-580.ÌýÌý
Johnson, P. T. J. and D. R. Sutherland (2003). Amphibian deformities andÌýRibeiroiaÌýinfection: An emerging helminthiasis.ÌýTrends in ParasitologyÌý19: 332-335.ÌýÌý
Johnson, P. T. J. and E. G. Ritchie (2003). Macroinvertebrate fauna of an iron-rich stream in the Wet Tropics of Australia: a comparative assessment of communities using a Rapid Bioassessment Protocol.ÌýMemoirs of the Queensland MuseumÌý49: 331-338.ÌýÌý
Bowerman, J. and P. T. J. Johnson (2003). Timing of trematodes-related malformations in Oregon spotted frogs and Pacific treefrogs.ÌýNorthwestern NaturalistÌý84: 142-145.ÌýÌý
Lannoo M. J., Sutherland, D. R., Jones, P., Rosenberry, D., Klaver, R. W., Hoppe, D. M., Johnson, P. T. J., Lunde, K. B., Facemire, C., and J. M.ÌýKapfer (2003). Multiple causes for the malformed frog phenomenon. In: ATSM STP 1443: G. Linder, Little, E., Krest, S. and D. Sparling (Eds). Multiple stressor effects in relation to declining amphibian populations. ASTM International, West Conshoshocken, PA.Ìý
2002
Johnson, P. T. J., Lunde, K. B., Thurman, E. M., Ritchie, E. G., Wray, S. W., Sutherland, D. R., Kapfer, J. M., Frest, T. J., Bowerman, J. and A. R. Blaustein (2002). Parasite (Ribeiroia ondatrae) infection linked to amphibian malformations in the western United States.ÌýEcological MonographsÌý72: 151-168.ÌýÌý
2001
Johnson, P. T. J., Lunde, K. B., Haight, R. W., J. Bowerman, and A. R. Blaustein (2001).ÌýRibeiroia ondatraeÌý(Trematoda: Digenea) infection induces severe limb malformations in western toads (Bufo boreas).ÌýCanadian Journal of ZoologyÌý79: 370-379.ÌýÌý
Johnson, P. T. J., Lunde, K. B., Ritchie, E. G., Reaser, J. K., and A. E. Launer (2001). Morphological abnormality patterns in a California amphibian community.ÌýHerpetologicaÌý57: 336-352.ÌýÌý
1999
Johnson, P. T. J., Lunde, K. B., Ritchie, E. G. and A. E. Launer (1999). The effect of trematode infection on amphibian limb development and survivorship.ÌýScienceÌý284: 802-804.ÌýÌý