Publications

Davidson, C., and R. A. Knapp. 2007. Multiple stressors and amphibian declines: dual impacts of pesticides and fish on yellow-legged frogs. Ecological Applications 17:587–597. [PDF: right-click to open in new window]

Fisk, D., L. Latta, R. Knapp, and M. Pfrender. 2007. Rapid evolution in response to introduced predators I: rates and patterns of morphological and life-history trait divergence. BMC Evolutionary Biology 7:22. [PDF]

Knapp, R. A., D. M. Boiano, and V. T. Vredenburg. 2007. Removal of nonnative fish results in population expansion of a declining amphibian (mountain yellow-legged frog, Rana muscosa). Biological Conservation 135:11-20. [PDF]

Latta, L., J. Bakelar, R. Knapp, and M. Pfrender. 2007. Rapid evolution in response to introduced predators II: the contribution of adaptive plasticity. BMC Evolutionary Biology 7:21. [PDF]

Morgan, J. A. T., V. T. Vredenburg, L. J. Rachowicz, R. A. Knapp, M. J. Stice, T. Tunstall, R. E. Bingham, J. M. Parker, J. E. Longcore, C. Moritz, C. J. Briggs, and J. W. Taylor. 2007. Population genetics of the frog-killing fungus Batrachochytrium dendrobatidis. Proceedings of the National Academy of Sciences, USA 104:13845–13850. [PDF]

Vredenburg, V. T., R. Bingham, R. Knapp, J. A. T. Morgan, C. Moritz, and D. Wake. 2007. Concordant molecular and phenotypic data delineate new taxonomy and conservation priorities for the endangered mountain yellow-legged frog. Journal of Zoology 271:361-374. [PDF]

Knapp, R. A., and J. A. T. Morgan. 2006. Tadpole mouthpart depigmentation as an accurate indicator of chytridiomycosis, an emerging disease of amphibians. Copeia 2006:188–197. [PDF]

Rachowicz, L. J., R. A. Knapp, J. A. T. Morgan, M. J. Stice, V. T. Vredenburg, J. M. Parker, and C. J. Briggs. 2006. Emerging infectious disease as a proximate cause of amphibian mass mortality. Ecology 87:1671–1683. [PDF]

Adams, M. J., B. R. Hossack, R. A. Knapp, P. S. Corn, S. A. Diamond, P. C. Trenham, and D. B. Fagre. 2005. Distribution patterns of lentic-breeding amphibians in relation to ultraviolet radiation exposure in western North America. Ecosystems 8:488-500. [PDF]

Briggs, C. J., V. T. Vredenburg, R. A. Knapp, and L. J. Rachowicz. 2005. Investigating the population-level effects of chytridiomycosis: an emerging infectious disease of amphibians. Ecology 86:3149–3159. [PDF]

Brooks, P. D., C. M. O’Reilly, S. A. Diamond, D. H. Campbell, R. Knapp, D. Bradford, P. S. Corn, B. Hossack, and K. Tonnessen. 2005. Spatial and temporal variability in the amount and source of dissolved organic carbon: implications for ultraviolet exposure in amphibian habitats. Ecosystems 8:478-487. [PDF]

Brose, U., L. Cushing, E. L. Berlow, T. Jonsson, C. Banasek-Richter, L.-F. Bersier, J. L. Blanchard, T. Brey, S. R. Carpenter, M.-F. C. Blandenier, J. E. Cohen, H. A. Dawah, T. Dell, F. Edwards, S. Harper-Smith, U. Jacob, R. A. Knapp, M. E. Ledger, J. Memmott, K. Mintenbeck, J. K. Pinnegar, B. C. Rall, T. Rayner, L. Ruess, W. Ulrich, P. Warren, R. J. Williams, G. Woodward, P. Yodzis, and N. D. Martinez. 2005. Body sizes of consumers and their resources. Ecology 86:2545. [PDF]

Diamond, S. A., P. C. Trenham, M. J. Adams, B. R. Hossack, R. A. Knapp, S. L. Stark, D. Bradford, P. S. Corn, K. Czarnowski, P. D. Brooks, D. Fagre, B. Breen, N. E. Detenbeck, and K. Tonnessen. 2005. Estimated ultraviolet radiation doses in wetlands in six national parks. Ecosystems 8:462-477. [PDF]

Harper-Smith, S., E. L. Berlow, R. A. Knapp, R. J. Williams, and N. D. Martinez. 2005. Communicating ecology through food webs: visualizing and quantifying the effects of stocking alpine lakes with trout. Pages 407-423 in P. C. de Ruiter, V. Wolters, and J. C. Moore, editors. Dynamic food webs - multispeces assemblages, ecosystem development and environmental change. Academic Press, Burlington, Massachusetts. [PDF]

Knapp, R. A. 2005. Effects of nonnative fish and habitat characteristics on lentic herpetofauna in Yosemite National Park, USA. Biological Conservation 121:265-279. [PDF]

Knapp, R. A., C. P. Hawkins, J. Ladau, and J. G. McClory. 2005. Fauna of Yosemite National Park lakes has low resistance but high resilience to fish introductions. Ecological Applications 15:835-847. [PDF]

Sarnelle, O., and R. A. Knapp. 2005. Nutrient recycling by fish versus zooplankton grazing as drivers of the trophic cascade in alpine lakes. Limnology and Oceanography 50:2032-2042. [PDF]

Armstrong, T. W., and R. A. Knapp. 2004. Response by trout populations in alpine lakes to an experimental halt to stocking. Canadian Journal of Fisheries and Aquatic Sciences 61:2025-2037. [PDF]

Sarnelle, O., and R. A. Knapp. 2004. Zooplankton recovery after fish removal: Limitations of the egg bank. Limnology and Oceanography 49:1382-1392. [PDF]

Knapp, R. A., K. R. Matthews, H. K. Preisler, and R. Jellison. 2003. Developing probabilistic models to predict amphibian site occupancy in a patchy landscape. Ecological Applications 13:1069-1082. [PDF]

Matthews, K. R., R. A. Knapp, and K. L. Pope. 2002. Garter snake distributions in high-elevation aquatic ecosystems: is there a link with declining amphibian populations and nonnative trout introductions? Journal of Herpetology 36:16-22. [PDF]

Knapp, R. A., P. S. Corn, and D. E. Schindler. 2001. The introduction of nonnative fish into wilderness lakes: good intentions, conflicting mandates, and unintended consequences. Ecosystems 4:275-278. [PDF]

Knapp, R. A., J. A. Garton, and O. Sarnelle. 2001. The use of egg shells to infer the historical presence of copepods in alpine lakes. Journal of Paleolimnology 25:539-543. [PDF]

Knapp, R. A., K. R. Matthews, and O. Sarnelle. 2001. Resistance and resilience of alpine lake fauna to fish introductions. Ecological Monographs 71:401-421. [PDF]

Matthews, K. R., K. L. Pope, H. K. Preisler, and R. A. Knapp. 2001. Effects of nonnative trout on Pacific treefrogs (Hyla regilla) in the Sierra Nevada. Copeia 101:1130-1137. [PDF]

Schindler, D. E., R. A. Knapp, and P. R. Leavitt. 2001. Alteration of nutrient cycles and algal production resulting from fish introductions into mountain lakes. Ecosystems 4:308-321. [PDF]

Knapp, R. A., and K. R. Matthews. 2000. Non-native fish introductions and the decline of the mountain yellow-legged frog from within protected areas. Conservation Biology 14:428-438. [PDF]

Knapp, R. A., and K. R. Matthews. 2000. Effects of nonnative fishes on wilderness lake ecosystems in the Sierra Nevada and recommendations for reducing impacts. Pages 312-317 in Proceedings: Wilderness Science in a Time of Change. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station.

Knapp, R. A., and H. K. Preisler. 1999. Is it possible to predict habitat use by spawning salmonids? A test using California golden trout (Oncorhynchus mykiss aguabonita). Canadian Journal of Fisheries and Aquatic Sciences 56:1576-1584. [PDF]

Matthews, K. R., and R. A. Knapp. 1999. A study of high mountain lake fish stocking effects on the U.S. Sierra Nevada wilderness. International Journal of Wilderness 5:24-26.

Knapp, R. A., and K. R. Matthews. 1998. Eradication of nonnative fish by gill netting from a small mountain lake in California. Restoration Ecology 6:207-213. [PDF]

Knapp, R. A., V. T. Vredenburg, and K. R. Matthews. 1998. Effects of stream channel morphology on golden trout spawning habitat and recruitment. Ecological Applications 8:1104-1117. [PDF]

Knapp, R. A. 1996. Non-native trout in natural lakes of the Sierra Nevada: an analysis of their distribution and impacts on native aquatic biota. Pages 363-407 in Sierra Nevada Ecosystem Project: Final Report to Congress. Volume III: Assessments, Commissioned Reports, and Background Information. Davis: University of California, Centers for Water and Wildland Resources. [PDF]

Knapp, R. A., and K. R. Matthews. 1996. Livestock grazing, golden trout, and streams in the Golden Trout Wilderness, California: impacts and management implications. North American Journal of Fisheries Management 16:805-820. [PDF]

Knapp, R. A., and V. T. Vredenburg. 1996. Spawning by California golden trout: characteristics of spawning fish, seasonal and daily timing, redd characteristics, and microhabitat preferences. Transactions of the American Fisheries Society 125:519-531. [PDF]

Knapp, R. A., and V. T. Vredenburg. 1996. A field comparison of the substrate composition of California golden trout redds sampled with two devices. North American Journal of Fisheries Management 16:674-681. [PDF]

Moyle, P. B., R. M. Yoshiyama, and R. A. Knapp. 1996. Status of fish and fisheries. Pages 953-973 in Sierra Nevada Ecosystem Project: Final Report to Congress. Vol. II: Assessments and scientific basis for management options. Davis: University of California, Centers for Water and Wildland Resources. [PDF]

Knapp, R. A. 1995. Influence of energy reserves on the expression of a secondary sexual trait in male bicolor damselfish, Stegastes partitus. Bulletin of Marine Science 57:672-681. [PDF]

Knapp, R. A., P. C. Sikkel, and V. T. Vredenburg. 1995. Age of clutches in nests and the within-nest spawning-site preferences of three damselfish species (Pomacentridae). Copeia 1995:78-88. [PDF]

Knapp, R. A. 1993. The influence of egg survivorship on the subsequent nest fidelity of female bicolour damselfish, Stegastes partitus. Animal Behaviour 46:111-121. [PDF]

Knapp, R. A., and J. T. Kovach. 1991. Courtship as an honest indicator of male parental quality in the bicolor damselfish, Stegastes partitus. Behavioral Ecology 2:295-300. [PDF]

Knapp, R. A., and R. R. Warner. 1991. Male parental care and female choice in the bicolor damselfish, Stegastes partitus: bigger is not always better. Animal Behaviour 41:747-756. [PDF]

Knapp, R. A., and T. L. Dudley. 1990. Growth and longevity of golden trout, Oncorhynchus aguabonita, in their native streams. California Fish and Game 76:161-173. [PDF]

Knapp, R. A., and R. C. Sargent. 1989. Egg-mimicry as a mating strategy in the fantail darter, Etheostoma flabellare: females prefer males with eggs. Behavioral Ecology and Sociobiology 25:321-326. [PDF]

Wilzbach, M. A., K. W. Cummins, and R. A. Knapp. 1988. Toward a functional classification of stream invertebrate drift. Verhandlung Internationale Vereinigung Limnologie 23:1244-1254. [PDF]