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Pieter TJ Johnson

TitleProfessor
InstitutionUniversity of Colorado Boulder
DepartmentEcology & Evolutionary Biology
Phone303/492-5623

    Collapse Bibliographic 
    Collapse selected publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    1. Johnson PTJ, Stewart Merrill T, Calhoun DM, McDevitt-Galles T, Hobart B. Into the danger zone: How the within-host distribution of parasites controls virulence. Ecol Lett. 2024 Jan; 27(1):e14352. PMID: 38115188.
      View in: PubMed
    2. Calhoun DM, Curtis J, Hassan C, Johnson PTJ. Putting infection on the map: Using heatmaps to characterise within- and between-host distributions of trematode metacercariae. J Helminthol. 2023 Nov 10; 97:e84. PMID: 37945271.
      View in: PubMed
    3. McMahon TA, Nordheim CL, Detmering SE, Johnson PTJ, Rohr JR, Civitello DJ. Pseudacris regilla metamorphs acquire resistance to Batrachochytrium dendrobatidis after exposure to the killed fungus. Dis Aquat Organ. 2023 Sep 28; 155:193-198. PMID: 37767886.
      View in: PubMed
    4. Snyder PW, Ramsay CT, Harjoe CC, Khazan ES, Briggs CJ, Hoverman JT, Johnson PTJ, Preston D, Rohr JR, Blaustein AR. Experimental evidence that host species composition alters host-pathogen dynamics in a ranavirus-amphibian assemblage. Ecology. 2023 02; 104(2):e3885. PMID: 36217286.
      View in: PubMed
    5. Moss WE, McDevitt-Galles T, Muths E, Bobzien S, Purificato J, Johnson PTJ. Resilience of native amphibian communities following catastrophic drought: Evidence from a decade of regional-scale monitoring. Biol Conserv. 2021 Nov; 263. PMID: 34737459.
      View in: PubMed
    6. Hobart BK, Moss WE, McDevitt-Galles T, Stewart Merrill TE, Johnson PTJ. It's a worm-eat-worm world: Consumption of parasite free-living stages protects hosts and benefits predators. J Anim Ecol. 2022 01; 91(1):35-45. PMID: 34543447.
      View in: PubMed
    7. McDevitt-Galles T, Carpenter SA, Koprivnikar J, Johnson PTJ. How predator and parasite size interact to determine consumption of infectious stages. Oecologia. 2021 Nov; 197(3):551-564. PMID: 34405300.
      View in: PubMed
    8. Johnson PTJ, Haas SE. Why do parasites exhibit reverse latitudinal diversity gradients? Testing the roles of host diversity, habitat and climate. Glob Ecol Biogeogr. 2021 Sep; 30(9):1810-1821. PMID: 34539245.
      View in: PubMed
    9. Locke SA, Drago FB, L?pez-Hern?ndez D, Chibwana FD, N??ez V, Van Dam A, Achinelly MF, Johnson PTJ, de Assis JCA, de Melo AL, Pinto HA. Intercontinental distributions, phylogenetic position and life cycles of species of Apharyngostrigea (Digenea, Diplostomoidea) illuminated with morphological, experimental, molecular and genomic data. Int J Parasitol. 2021 07; 51(8):667-683. PMID: 33716019.
      View in: PubMed
    10. Valenzuela-S?nchez A, Wilber MQ, Canessa S, Bacigalupe LD, Muths E, Schmidt BR, Cunningham AA, Ozgul A, Johnson PTJ, Cayuela H. Why disease ecology needs life-history theory: a host perspective. Ecol Lett. 2021 Apr; 24(4):876-890. PMID: 33492776.
      View in: PubMed
    11. Johnson P, Calhoun DM, Moss WE, McDevitt-Galles T, Riepe TB, Hallas JM, Parchman TL, Feldman CR, Achatz TJ, Tkach VV, Cropanzano J, Bowerman J, Koprivnikar J. The cost of travel: How dispersal ability limits local adaptation in host-parasite interactions. J Evol Biol. 2021 03; 34(3):512-524. PMID: 33314323.
      View in: PubMed
    12. Johnson SK, Johnson PTJ. Toxoplasmosis: Recent Advances in Understanding the Link Between Infection and Host Behavior. Annu Rev Anim Biosci. 2021 02 16; 9:249-264. PMID: 33138620.
      View in: PubMed
    13. Wilber MQ, Briggs CJ, Johnson PTJ. Disease's hidden death toll: Using parasite aggregation patterns to quantify landscape-level host mortality in a wildlife system. J Anim Ecol. 2020 12; 89(12):2876-2887. PMID: 32935347.
      View in: PubMed
    14. Calhoun DM, Esfahani E, Locke SA, Moser WE, Johnson PTJ. How parasite exposure and time interact to determine Australapatemon burti (Trematoda: Digenea) infections in second intermediate hosts (Erpobdella microstoma) (Hirudinea: Erpodellidae). Exp Parasitol. 2020 Dec; 219:108002. PMID: 32976822.
      View in: PubMed
    15. Oleksy IA, Beck WS, Lammers RW, Steger CE, Wilson C, Christianson K, Vincent K, Johnson G, Johnson PTJ, Baron JS. The role of warm, dry summers and variation in snowpack on phytoplankton dynamics in mountain lakes. Ecology. 2020 10; 101(10):e03132. PMID: 32628277.
      View in: PubMed
    16. Martin KR, Johnson PTJ, Bowerman J, Li J. Biogeography of the freshwater gastropod, Planorbella trivolvis, in the western United States. PLoS One. 2020; 15(7):e0235989. PMID: 32726356.
      View in: PubMed
    17. Stewart Merrill TE, Johnson PTJ. Towards a mechanistic understanding of competence: a missing link in diversity-disease research. Parasitology. 2020 09; 147(11):1159-1170. PMID: 32517830.
      View in: PubMed
    18. Wilber MQ, Johnson PTJ, Briggs CJ. Disease hotspots or hot species? Infection dynamics in multi-host metacommunities controlled by species identity, not source location. Ecol Lett. 2020 Aug; 23(8):1201-1211. PMID: 32357383.
      View in: PubMed
    19. Moss WE, McDevitt-Galles T, Calhoun DM, Johnson PTJ. Tracking the assembly of nested parasite communities: Using ?-diversity to understand variation in parasite richness and composition over time and scale. J Anim Ecol. 2020 06; 89(6):1532-1542. PMID: 32160311.
      View in: PubMed
    20. McDevitt-Galles T, Moss WE, Calhoun DM, Johnson PTJ. Phenological synchrony shapes pathology in host-parasite systems. Proc Biol Sci. 2020 01 29; 287(1919):20192597. PMID: 31964296.
      View in: PubMed
    21. McKee KM, Koprivnikar J, Johnson PTJ, Arts MT. Parasite infectious stages provide essential fatty acids and lipid-rich resources to freshwater consumers. Oecologia. 2020 Feb; 192(2):477-488. PMID: 31834514.
      View in: PubMed
    22. Wood CL, Summerside M, Johnson PTJ. An effective method for ecosystem-scale manipulation of bird abundance and species richness. Ecol Evol. 2019 Sep; 9(17):9748-9758. PMID: 31534690.
      View in: PubMed
    23. Riepe TB, Calhoun DM, Johnson PTJ. Comparison of direct and indirect techniques for evaluating endoparasite infections in wild-caught newts (Taricha torosa and T. granulosa). Dis Aquat Organ. 2019 May 23; 134(2):137-146. PMID: 31120040.
      View in: PubMed
    24. Johnson PTJ, Calhoun DM, Riepe T, McDevitt-Galles T, Koprivnikar J. Community disassembly and disease: realistic-but not randomized-biodiversity losses enhance parasite transmission. Proc Biol Sci. 2019 05 15; 286(1902):20190260. PMID: 31039724.
      View in: PubMed
    25. Johnson PTJ, Calhoun DM, Riepe TB, Koprivnikar J. Chance or choice? Understanding parasite selection and infection in multi-host communities. Int J Parasitol. 2019 04; 49(5):407-415. PMID: 30894285.
      View in: PubMed
    26. Stutz WE, Calhoun DM, Johnson PTJ. Resistance and tolerance: A hierarchical framework to compare individual versus family-level host contributions in an experimental amphibian-trematode system. Exp Parasitol. 2019 Apr; 199:80-91. PMID: 30862495.
      View in: PubMed
    27. Mihaljevic JR, Hoverman JT, Johnson PTJ. Co-exposure to multiple ranavirus types enhances viral infectivity and replication in a larval amphibian system. Dis Aquat Organ. 2018 Dec 11; 132(1):23-35. PMID: 30530928.
      View in: PubMed
    28. Reid AJ, Carlson AK, Creed IF, Eliason EJ, Gell PA, Johnson PTJ, Kidd KA, MacCormack TJ, Olden JD, Ormerod SJ, Smol JP, Taylor WW, Tockner K, Vermaire JC, Dudgeon D, Cooke SJ. Emerging threats and persistent conservation challenges for freshwater biodiversity. Biol Rev Camb Philos Soc. 2019 06; 94(3):849-873. PMID: 30467930.
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    29. Koprivnikar J, Hoye BJ, Urichuk TMY, Johnson PTJ. Endocrine and immune responses of larval amphibians to trematode exposure. Parasitol Res. 2019 Jan; 118(1):275-288. PMID: 30456491.
      View in: PubMed
    30. Springer YP, Johnson PTJ. Large-scale health disparities associated with Lyme disease and human monocytic ehrlichiosis in the United States, 2007-2013. PLoS One. 2018; 13(9):e0204609. PMID: 30261027.
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    31. Miller DAW, Grant EHC, Muths E, Amburgey SM, Adams MJ, Joseph MB, Waddle JH, Johnson PTJ, Ryan ME, Schmidt BR, Calhoun DL, Davis CL, Fisher RN, Green DM, Hossack BR, Rittenhouse TAG, Walls SC, Bailey LL, Cruickshank SS, Fellers GM, Gorman TA, Haas CA, Hughson W, Pilliod DS, Price SJ, Ray AM, Sadinski W, Saenz D, Barichivich WJ, Brand A, Brehme CS, Dagit R, Delaney KS, Glorioso BM, Kats LB, Kleeman PM, Pearl CA, Rochester CJ, Riley SPD, Roth M, Sigafus BH. Quantifying climate sensitivity and climate-driven change in North American amphibian communities. Nat Commun. 2018 09 25; 9(1):3926. PMID: 30254220.
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    32. McDevitt-Galles T, Johnson PTJ. Drought attenuates the impact of fish on aquatic macroinvertebrate richness and community composition. Freshw Biol. 2018 Nov; 63(11):1457-1468. PMID: 30853728.
      View in: PubMed
    33. Johnson SK, Fitza MA, Lerner DA, Calhoun DM, Beldon MA, Chan ET, Johnson PTJ. Risky business: linking Toxoplasma gondii infection and entrepreneurship behaviours across individuals and countries. Proc Biol Sci. 2018 07 25; 285(1883). PMID: 30051870.
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    34. McDevitt-Galles T, Calhoun DM, Johnson PTJ. Parasite richness and abundance within aquatic macroinvertebrates: testing the roles of host- and habitat-level factors. Ecosphere. 2018 Apr; 9(4). PMID: 30271654.
      View in: PubMed
    35. Johnson PTJ, Calhoun DM, Stokes AN, Susbilla CB, McDevitt-Galles T, Briggs CJ, Hoverman JT, Tkach VV, de Roode JC. Of poisons and parasites-the defensive role of tetrodotoxin against infections in newts. J Anim Ecol. 2018 07; 87(4):1192-1204. PMID: 29476541.
      View in: PubMed
    36. Tornabene BJ, Blaustein AR, Briggs CJ, Calhoun DM, Johnson PTJ, McDevitt-Galles T, Rohr JR, Hoverman JT. The influence of landscape and environmental factors on ranavirus epidemiology in a California amphibian assemblage. Freshw Biol. 2018 Jul; 63(7):639-651. PMID: 30127540.
      View in: PubMed
    37. Paull SH, Johnson PTJ. How Temperature, Pond-Drying, and Nutrients Influence Parasite Infection and Pathology. Ecohealth. 2018 06; 15(2):396-408. PMID: 29511903.
      View in: PubMed
    38. Orlofske SA, Flaxman SM, Joseph MB, Fenton A, Melbourne BA, Johnson PTJ. Experimental investigation of alternative transmission functions: Quantitative evidence for the importance of nonlinear transmission dynamics in host-parasite systems. J Anim Ecol. 2018 05; 87(3):703-715. PMID: 29111599.
      View in: PubMed
    39. Hannon ER, Calhoun DM, Chadalawada S, Johnson PTJ. Circadian rhythms of trematode parasites: applying mixed models to test underlying patterns. Parasitology. 2018 05; 145(6):783-791. PMID: 29144214.
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    40. Stutz WE, Blaustein AR, Briggs CJ, Hoverman JT, Rohr JR, Johnson PTJ. Using multi-response models to investigate pathogen coinfections across scales: insights from emerging diseases of amphibians. Methods Ecol Evol. 2018 Apr; 9(4):1109-1120. PMID: 29861885.
      View in: PubMed
    41. Haas SE, Reeves MK, Pinkney AE, Johnson PTJ. Continental-extent patterns in amphibian malformations linked to parasites, chemical contaminants, and their interactions. Glob Chang Biol. 2018 01; 24(1):e275-e288. PMID: 28925537.
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    42. Mihaljevic JR, Hoye BJ, Johnson PTJ. Parasite metacommunities: Evaluating the roles of host community composition and environmental gradients in structuring symbiont communities within amphibians. J Anim Ecol. 2018 03; 87(2):354-368. PMID: 28795407.
      View in: PubMed
    43. Johnson PTJ, Wilber MQ. Biological and statistical processes jointly drive population aggregation: using host-parasite interactions to understand Taylor's power law. Proc Biol Sci. 2017 Sep 27; 284(1863). PMID: 28931738.
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    44. Johnson PTJ, Stanton DE, Forshay KJ, Calhoun DM. Vertically challenged: How disease suppresses Daphnia vertical migration behavior. Limnol Oceanogr. 2017 Sep 07; 63(2):886-896. PMID: 32704187.
      View in: PubMed
    45. Calhoun DM, Bucciarelli GM, Kats LB, Zimmer RK, Johnson PTJ. Noxious newts and their natural enemies: Experimental effects of tetrodotoxin exposure on trematode parasites and aquatic macroinvertebrates. Toxicon. 2017 Oct; 137:120-127. PMID: 28755852.
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    46. Wilber MQ, Johnson PT, Briggs CJ. When can we infer mechanism from parasite aggregation? A constraint-based approach to disease ecology. Ecology. 2017 Mar; 98(3):688-702. PMID: 27935638.
      View in: PubMed
    47. McCaffrey K, Johnson PT. Drivers of symbiont diversity in freshwater snails: a comparative analysis of resource availability, community heterogeneity, and colonization opportunities. Oecologia. 2017 04; 183(4):927-938. PMID: 28039528.
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    48. Joseph MB, Stutz WE, Johnson PT. Multilevel Models for the Distribution of Hosts and Symbionts. PLoS One. 2016; 11(11):e0165768. PMID: 27832124.
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    49. Wood CL, Johnson PT. How Does Space Influence the Relationship Between Host and Parasite Diversity? J Parasitol. 2016 Oct; 102(5):485-494. PMID: 27351071.
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    50. Koprivnikar J, Johnson PT. The Rise of Disease Ecology and Its Implications for Parasitology- A Review. J Parasitol. 2016 Aug; 102(4):397-409. PMID: 27227826.
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    51. Grant EH, Miller DA, Schmidt BR, Adams MJ, Amburgey SM, Chambert T, Cruickshank SS, Fisher RN, Green DM, Hossack BR, Johnson PT, Joseph MB, Rittenhouse TA, Ryan ME, Waddle JH, Walls SC, Bailey LL, Fellers GM, Gorman TA, Ray AM, Pilliod DS, Price SJ, Saenz D, Sadinski W, Muths E. Quantitative evidence for the effects of multiple drivers on continental-scale amphibian declines. Sci Rep. 2016 05 23; 6:25625. PMID: 27212145.
      View in: PubMed
    52. Johnson PT, Wood CL, Joseph MB, Preston DL, Haas SE, Springer YP. Habitat heterogeneity drives the host-diversity-begets-parasite-diversity relationship: evidence from experimental and field studies. Ecol Lett. 2016 Jul; 19(7):752-61. PMID: 27147106.
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    53. Altman KA, Paull SH, Johnson PT, Golembieski MN, Stephens JP, LaFonte BE, Raffel TR. Host and parasite thermal acclimation responses depend on the stage of infection. J Anim Ecol. 2016 Jul; 85(4):1014-24. PMID: 27040618.
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    54. Mischler J, Johnson PT, McKenzie VJ, Townsend AR. Parasite infection alters nitrogen cycling at the ecosystem scale. J Anim Ecol. 2016 05; 85(3):817-28. PMID: 26919319.
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    55. Joseph MB, Preston DL, Johnson PT. Integrating occupancy models and structural equation models to understand species occurrence. Ecology. 2016 Mar; 97(3):765-75. PMID: 27197402.
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    56. Calhoun DM, Woodhams D, Howard C, LaFonte BE, Gregory JR, Johnson PT. Role of Antimicrobial Peptides in Amphibian Defense Against Trematode Infection. Ecohealth. 2016 06; 13(2):383-91. PMID: 26911920.
      View in: PubMed
    57. Calhoun DM, Schaffer PA, Gregory JR, Hardy KM, Johnson PT. Experimental Infections of Bluegill with the Trematode Ribeiroia ondatrae (Digenea: Cathaemasiidae): Histopathology and Hematological Response. J Aquat Anim Health. 2015 Dec; 27(4):185-91. PMID: 26587684.
      View in: PubMed
    58. Hannon ER, Kinsella JM, Calhoun DM, Joseph MB, Johnson PT. Endohelminths in Bird Hosts from Northern California and an Analysis of the Role of Life History Traits on Parasite Richness. J Parasitol. 2016 04; 102(2):199-207. PMID: 26579621.
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    59. Wood CL, Johnson PT. A world without parasites: exploring the hidden ecology of infection. Front Ecol Environ. 2015 Oct; 13(8):425-434. PMID: 28077932.
      View in: PubMed
    60. Johnson PT, de Roode JC, Fenton A. Why infectious disease research needs community ecology. Science. 2015 Sep 04; 349(6252):1259504. PMID: 26339035.
      View in: PubMed
    61. Johnson PT, Ostfeld RS, Keesing F. Frontiers in research on biodiversity and disease. Ecol Lett. 2015 Oct; 18(10):1119-33. PMID: 26261049.
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    62. Mihaljevic JR, Joseph MB, Johnson PT. Using multispecies occupancy models to improve the characterization and understanding of metacommunity structure. Ecology. 2015 Jul; 96(7):1783-92. PMID: 26378301.
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    63. LaFonte BE, Raffel TR, Monk IN, Johnson PT. Quantifying larval trematode infections in hosts: A comparison of method validity and implications for infection success. Exp Parasitol. 2015 Jul; 154:155-62. PMID: 25888244.
      View in: PubMed
    64. Orlofske SA, Jadin RC, Johnson PT. It's a predator-eat-parasite world: how characteristics of predator, parasite and environment affect consumption. Oecologia. 2015 Jun; 178(2):537-47. PMID: 25648648.
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    65. Johnson PT, Hoverman JT. Heterogeneous hosts: how variation in host size, behaviour and immunity affects parasite aggregation. J Anim Ecol. 2014 Sep; 83(5):1103-12. PMID: 24548254.
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    66. Paull SH, Johnson PT. Experimental warming drives a seasonal shift in the timing of host-parasite dynamics with consequences for disease risk. Ecol Lett. 2014 Apr; 17(4):445-53. PMID: 24401007.
      View in: PubMed
    67. Preston DL, Jacobs AZ, Orlofske SA, Johnson PT. Complex life cycles in a pond food web: effects of life stage structure and parasites on network properties, trophic positions and the fit of a probabilistic niche model. Oecologia. 2014 Mar; 174(3):953-65. PMID: 24258100.
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    68. Johnson PT, Preston DL, Hoverman JT, LaFonte BE. Host and parasite diversity jointly control disease risk in complex communities. Proc Natl Acad Sci U S A. 2013 Oct 15; 110(42):16916-21. PMID: 24082092.
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    69. Rohr JR, Raffel TR, Blaustein AR, Johnson PT, Paull SH, Young S. Using physiology to understand climate-driven changes in disease and their implications for conservation. Conserv Physiol. 2013; 1(1):cot022. PMID: 27293606.
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    70. Altizer S, Ostfeld RS, Johnson PT, Kutz S, Harvell CD. Climate change and infectious diseases: from evidence to a predictive framework. Science. 2013 Aug 02; 341(6145):514-9. PMID: 23908230.
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    71. LaFonte BE, Johnson PT. Experimental infection dynamics: using immunosuppression and in vivo parasite tracking to understand host resistance in an amphibian-trematode system. J Exp Biol. 2013 Oct 01; 216(Pt 19):3700-8. PMID: 23821713.
      View in: PubMed
    72. Hoverman JT, Hoye BJ, Johnson PT. Does timing matter? How priority effects influence the outcome of parasite interactions within hosts. Oecologia. 2013 Dec; 173(4):1471-80. PMID: 23754306.
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    73. Lambden J, Johnson PT. Quantifying the biomass of parasites to understand their role in aquatic communities. Ecol Evol. 2013 Jul; 3(7):2310-21. PMID: 23919172.
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    74. Joseph MB, Mihaljevic JR, Arellano AL, Kueneman JG, Preston DL, Cross PC, Johnson PTJ. Taming wildlife disease: bridging the gap between science and management. J Appl Ecol. 2013 Jun; 50(3):702-712. PMID: 32336775.
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    75. Preston DL, Orlofske SA, Lambden JP, Johnson PT. Biomass and productivity of trematode parasites in pond ecosystems. J Anim Ecol. 2013 May; 82(3):509-17. PMID: 23488451.
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    76. Johnson PT, Preston DL, Hoverman JT, Richgels KL. Biodiversity decreases disease through predictable changes in host community competence. Nature. 2013 Feb 14; 494(7436):230-3. PMID: 23407539.
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    77. McMahon TA, Brannelly LA, Chatfield MW, Johnson PT, Joseph MB, McKenzie VJ, Richards-Zawacki CL, Venesky MD, Rohr JR. Chytrid fungus Batrachochytrium dendrobatidis has nonamphibian hosts and releases chemicals that cause pathology in the absence of infection. Proc Natl Acad Sci U S A. 2013 Jan 02; 110(1):210-5. PMID: 23248288.
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    78. Koprivnikar J, Marcogliese DJ, Rohr JR, Orlofske SA, Raffel TR, Johnson PT. Macroparasite infections of amphibians: what can they tell us? Ecohealth. 2012 Sep; 9(3):342-60. PMID: 22810498.
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    79. Hoverman JT, Mihaljevic JR, Richgels KL, Kerby JL, Johnson PT. Widespread co-occurrence of virulent pathogens within California amphibian communities. Ecohealth. 2012 Sep; 9(3):288-92. PMID: 22766887.
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    80. Blaustein AR, Gervasi SS, Johnson PT, Hoverman JT, Belden LK, Bradley PW, Xie GY. Ecophysiology meets conservation: understanding the role of disease in amphibian population declines. Philos Trans R Soc Lond B Biol Sci. 2012 Jun 19; 367(1596):1688-707. PMID: 22566676.
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    81. Orlofske SA, Jadin RC, Preston DL, Johnson PT. Parasite transmission in complex communities: predators and alternative hosts alter pathogenic infections in amphibians. Ecology. 2012 Jun; 93(6):1247-53. PMID: 22834364.
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    82. Preston DL, Henderson JS, Johnson PT. Community ecology of invasions: direct and indirect effects of multiple invasive species on aquatic communities. Ecology. 2012 Jun; 93(6):1254-61. PMID: 22834365.
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    83. Johnson PT, Hoverman JT. Parasite diversity and coinfection determine pathogen infection success and host fitness. Proc Natl Acad Sci U S A. 2012 Jun 05; 109(23):9006-11. PMID: 22615371.
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    84. Paull SH, Song S, McClure KM, Sackett LC, Kilpatrick AM, Johnson PT. From superspreaders to disease hotspots: linking transmission across hosts and space. Front Ecol Environ. 2012 Mar 01; 10(2):75-82. PMID: 23482675.
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    85. Johnson PT, Rohr JR, Hoverman JT, Kellermanns E, Bowerman J, Lunde KB. Living fast and dying of infection: host life history drives interspecific variation in infection and disease risk. Ecol Lett. 2012 Mar; 15(3):235-42. PMID: 22221837.
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    86. Johnson PT, Preston DL, Hoverman JT, Henderson JS, Paull SH, Richgels KL, Redmond MD. Species diversity reduces parasite infection through cross-generational effects on host abundance. Ecology. 2012 Jan; 93(1):56-64. PMID: 22486087.
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    87. Hartson RB, Orlofske SA, Melin VE, Dillon RT, Johnson PT. Land use and wetland spatial position jointly determine amphibian parasite communities. Ecohealth. 2011 Dec; 8(4):485-500. PMID: 22071719.
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    88. Olden JD, Vander Zanden MJ, Johnson PT. Assessing ecosystem vulnerability to invasive rusty crayfish (Orconectes rusticus). Ecol Appl. 2011 Oct; 21(7):2587-99. PMID: 22073646.
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    89. Redmond MD, Hartson RB, Hoverman JT, De Jes?s-Villanueva CN, Johnson PT. Experimental exposure of Helisoma trivolvis and Biomphalaria glabrata (Gastropoda) to Ribeiroia ondatrae (Trematoda). J Parasitol. 2011 Dec; 97(6):1055-61. PMID: 21671721.
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    90. Goodman BA, Johnson PT. Disease and the extended phenotype: parasites control host performance and survival through induced changes in body plan. PLoS One. 2011; 6(5):e20193. PMID: 21633498.
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    91. Locke SA, McLaughlin JD, Lapierre AR, Johnson PT, Marcogliese DJ. Linking larvae and adults of Apharyngostrigea cornu, Hysteromorpha triloba, and Alaria mustelae (Diplostomoidea: Digenea) using molecular data. J Parasitol. 2011 Oct; 97(5):846-51. PMID: 21510747.
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    92. Rohr JR, Dobson AP, Johnson PT, Kilpatrick AM, Paull SH, Raffel TR, Ruiz-Moreno D, Thomas MB. Frontiers in climate change-disease research. Trends Ecol Evol. 2011 Jun; 26(6):270-7. PMID: 21481487.
      View in: PubMed
    93. Romansic JM, Johnson PT, Searle CL, Johnson JE, Tunstall TS, Han BA, Rohr JR, Blaustein AR. Individual and combined effects of multiple pathogens on Pacific treefrogs. Oecologia. 2011 Aug; 166(4):1029-41. PMID: 21400194.
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    94. Blaustein AR, Han BA, Relyea RA, Johnson PT, Buck JC, Gervasi SS, Kats LB. The complexity of amphibian population declines: understanding the role of cofactors in driving amphibian losses. Ann N Y Acad Sci. 2011 Mar; 1223:108-19. PMID: 21449968.
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    95. Johnson PT, Buller ID. Parasite competition hidden by correlated coinfection: using surveys and experiments to understand parasite interactions. Ecology. 2011 Mar; 92(3):535-41. PMID: 21608460.
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    96. Goodman BA, Johnson PT. Ecomorphology and disease: cryptic effects of parasitism on host habitat use, thermoregulation, and predator avoidance. Ecology. 2011 Mar; 92(3):542-8. PMID: 21608461.
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    97. Johnson PT, McKenzie VJ, Peterson AC, Kerby JL, Brown J, Blaustein AR, Jackson T. Regional decline of an iconic amphibian associated with elevation, land-use change, and invasive species. Conserv Biol. 2011 Jun; 25(3):556-66. PMID: 21342266.
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    98. Daly EW, Johnson PT. Beyond immunity: quantifying the effects of host anti-parasite behavior on parasite transmission. Oecologia. 2011 Apr; 165(4):1043-50. PMID: 20857146.
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    99. Johnson PT, Bowerman J. Do predators cause frog deformities? The need for an eco-epidemiological approach. J Exp Zool B Mol Dev Evol. 2010 Nov 15; 314(7):515-8. PMID: 20718015.
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    100. Krugner-Higby L, Haak D, Johnson PT, Shields JD, Jones WM, Reece KS, Meinke T, Gendron A, Rusak JA. Ulcerative disease outbreak in crayfish Orconectes propinquus linked to Saprolegnia australis in big Muskellunge Lake, Wisconsin. Dis Aquat Organ. 2010 Jul 26; 91(1):57-66. PMID: 20853742.
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    101. Blaustein AR, Johnson PT. Conservation biology: When an infection turns lethal. Nature. 2010 Jun 17; 465(7300):881-2. PMID: 20559377.
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    102. Johnson PT, Thieltges DW. Diversity, decoys and the dilution effect: how ecological communities affect disease risk. J Exp Biol. 2010 Mar 15; 213(6):961-70. PMID: 20190121.
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    103. Johnson PT, Dobson A, Lafferty KD, Marcogliese DJ, Memmott J, Orlofske SA, Poulin R, Thieltges DW. When parasites become prey: ecological and epidemiological significance of eating parasites. Trends Ecol Evol. 2010 Jun; 25(6):362-71. PMID: 20185202.
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    104. Bowerman J, Johnson PT, Bowerman T. Sublethal predators and their injured prey: linking aquatic predators and severe limb abnormalities in amphibians. Ecology. 2010 Jan; 91(1):242-51. PMID: 20380213.
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    105. Johnson PT, Townsend AR, Cleveland CC, Glibert PM, Howarth RW, McKenzie VJ, Rejmankova E, Ward MH. Linking environmental nutrient enrichment and disease emergence in humans and wildlife. Ecol Appl. 2010 Jan; 20(1):16-29. PMID: 20349828.
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    106. Gross JA, Johnson PT, Prahl LK, Karasov WH. Critical period of sensitivity for effects of cadmium on frog growth and development. Environ Toxicol Chem. 2009 Jun; 28(6):1227-32. PMID: 19133712.
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    107. Johnson PT, Lund PJ, Hartson RB, Yoshino TP. Community diversity reduces Schistosoma mansoni transmission, host pathology and human infection risk. Proc Biol Sci. 2009 May 07; 276(1662):1657-63. PMID: 19203926.
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    108. Johnson PT, Ives AR, Lathrop RC, Carpenter SR. Long-term disease dynamics in lakes: causes and consequences of chytrid infections in Daphnia populations. Ecology. 2009 Jan; 90(1):132-44. PMID: 19294920.
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    109. Johnson PT, Olden JD, Solomon CT, Vander Zanden MJ. Interactions among invaders: community and ecosystem effects of multiple invasive species in an experimental aquatic system. Oecologia. 2009 Feb; 159(1):161-70. PMID: 18941789.
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    110. Forshay KJ, Johnson PT, Stock M, Pe?alva C, Dodson SI. Festering food: chytridiomycete pathogen reduces quality of Daphnia host as a food resource. Ecology. 2008 Oct; 89(10):2692-9. PMID: 18959307.
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    111. Johnson PT, Hartson RB. All hosts are not equal: explaining differential patterns of malformations in an amphibian community. J Anim Ecol. 2009 Jan; 78(1):191-201. PMID: 18671806.
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    112. Johnson PT, Hartson RB, Larson DJ, Sutherland DR. Diversity and disease: community structure drives parasite transmission and host fitness. Ecol Lett. 2008 Oct; 11(10):1017-26. PMID: 18616550.
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    113. Lafferty KD, Allesina S, Arim M, Briggs CJ, De Leo G, Dobson AP, Dunne JA, Johnson PT, Kuris AM, Marcogliese DJ, Martinez ND, Memmott J, Marquet PA, McLaughlin JP, Mordecai EA, Pascual M, Poulin R, Thieltges DW. Parasites in food webs: the ultimate missing links. Ecol Lett. 2008 Jun; 11(6):533-46. PMID: 18462196.
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    114. Johnson PT, Chase JM, Dosch KL, Hartson RB, Gross JA, Larson DJ, Sutherland DR, Carpenter SR. Aquatic eutrophication promotes pathogenic infection in amphibians. Proc Natl Acad Sci U S A. 2007 Oct 02; 104(40):15781-6. PMID: 17893332.
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    115. Johnson PT, Preu ER, Sutherland DR, Romansic JM, Han B, Blaustein AR. Adding infection to injury: synergistic effects of predation and parasitism on amphibian malformations. Ecology. 2006 Sep; 87(9):2227-35. PMID: 16995623.
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    116. Johnson PT, Stanton DE, Preu ER, Forshay KJ, Carpenter SR. Dining on disease: how interactions between infection and environment affect predation risk. Ecology. 2006 Aug; 87(8):1973-80. PMID: 16937636.
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    117. Johnson PT. Amphibian diversity: decimation by disease. Proc Natl Acad Sci U S A. 2006 Feb 28; 103(9):3011-2. PMID: 16492751.
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    118. Wilson WD, Johnson PT, Sutherland DR, Mon? H, Loker ES. A molecular phylogenetic study of the genus Ribeiroia (Digenea): trematodes known to cause limb malformations in amphibians. J Parasitol. 2005 Oct; 91(5):1040-5. PMID: 16419746.
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    119. Fried B, Johnson PT. In vitro excystment of the metacercariae of Ribeiroia ondatrae. Parasitol Res. 2005 Mar; 95(4):293-5. PMID: 15678351.
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    120. Johnson PT, Sutherland DR, Kinsella JM, Lunde KB. Review of the trematode genus Ribeiroia (Psilostomidae): ecology, life history and pathogenesis with special emphasis on the amphibian malformation problem. Adv Parasitol. 2004; 57:191-253. PMID: 15504539.
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    121. Johnson PT, Sutherland DR. Amphibian deformities and Ribeiroia infection: an emerging helminthiasis. Trends Parasitol. 2003 Aug; 19(8):332-5. PMID: 12901930.
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    122. Blaustein AR, Johnson PT. Explaining frog deformities. Sci Am. 2003 Feb; 288(2):60-5. PMID: 12561459.
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