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  • Ellingson, R.A. and P.J. Krug. 2016. Reduced genetic diversity and increased reproductive isolation follow population-level loss of larval dispersal in a marine gastropod. Evolution 70: 18-37.

  • Krug, P.J., J.E. Vendetti and A.A. Valdes. 2016. Molecular and morphological systematics of Elysia Risso, 1818 (Heterobranchia: Sacoglossa) from the Caribbean region. Zootaxa 4148: 1-137.

  • Krug, P.J., J. Vendetti, R. Ellingson, C. Trowbridge, Y. Hirano, D.Y. Trathen, A.K. Rodriguez, C. Swennen, N. Wilson and A. Valdes. 2015. Species Selection Favors Dispersive Life Histories in Sea Slugs, but Higher Per-Offspring Investment Drives Shifts to Short-Lived Larvae. Systematic Biology 64: 983-999.

  • Jensen, K., P. Krug, A. Dupont and M. Nishina. 2014. review of taxonomy and phylogenetic relationships in the genusCostasiella(Heterobranchia. Journal of Molluscan Studies 80: 562-574.

  • Romero, M.R., M. Phuong, C.D. Bishop and P.J. Krug. 2013. Differential function of nitric oxide signaling during habitat choice by two larval morphs of the sea slug Alderia willowi: mechanistic insight into evolutionary transitions in dispersal strategies. Journal of Experimental Biology 216: 1114-1125.

  • Krug, P., J. Vendetti, A. Rodriguez, J. Retana, Y. Hirano and C. Trowbridge. 2013. Integrative species delimitation in photosynthetic sea slugs reveals twenty candidate species in three nominal taxa studied for drug discovery, plastid symbiosis or biological control. Molecular Phylogenetics and Evolution 69: 1101-1119.

  • Kocot, K., K. Halanych and P.J. Krug. 2013. Phylogenomics supports Panpulmonata. Molecular Phylogenetics and Evolution 69: 764-771.

  • Krug, P.J., J. Asif, I. Baeza, M. Morley, W. Blom and T. Gosliner. 2012. Molecular identification of two species of the carnivorous sea slug Philine, invaders of the U.S. west coast. Biological Invasions 14: 2447-2459.

  • Asif, J. and P. Krug. 2012. Lineage distribution and barriers to gene flow among populations of the globally invasive marine mussel Musculista senhousia. Biological Invasions 14: 1431-1444.

  • Krug, P.J., C.D. Trowbridge and J.E. Vendetti. 2012. Poecilogony and population genetic structure in Elysia pusilla (Heterobranchia: Sacoglossa), and reproductive data for five sacoglossans that express dimorphisms in larval development. Integrative and Comparative Biology 52: 138-150.

  • Marshall, D., P.J. Krug, E. Kupriyanova, M. Byrne and R. Emlet. 2012. Biogeography of Marine Invertebrate Life Histories. Annual Review of Ecology, Evolution, and Systematics 43: 97-114.

  • Krug, P.J., D. Gordon and M.R. Romero. 2012. Seasonal polyphenism in larval type: Rearing environment influences the development mode expressed by adults in the sea slug Alderia willowi. Integrative and Comparative Biology 52: 161-172.

  • Krug, P.J., K. Handeler and J.E. Vendetti. 2011. Genes, morphology, development and photosynthetic ability support the resurrection of Elysia cornigera (Heterobranchia. Invertebrate Systematics 25: 477-489.

  • Krug, P. 2011. Patterns of Speciation in Marine Gastropods. American Malacological Bulletin 29: 169-186.

  • Smolensky, N., M. Romero and P. Krug. 2009. Evidence for Costs of Mating and Self-Fertilization in a Simultaneous Hermaphrodite With Hypodermic Insemination, the Opisthobranch Alderia willowi. Biological Bulletin 216: 188-199.

  • Allen, R., P. Krug and D. Marshall. 2009. Larval size in Elysia stylifera is determined by extra-embryonic provisioning but not egg size. Marine Ecology Progress Series: 127-137.

  • Haendeler, K., Y. Grzymbowski, P. Krug and H. Waegele. 2009. Functional chloroplasts in metazoan cells - a unique evolutionary strategy in animal life. Frontiers in Zoology.

  • Krug, P. 2009. Not my “type”: Bet-hedging and dispersal dimorphisms in opisthobranch life histories. Biological Bulletin: 355-372.

  • Krug, P., J. Riffell and R. Zimmer. 2009. Endogenous signaling pathways and chemical communication between sperm and egg. Journal of Experimental Biology 212: 1092-1100.

  • Krug, P., M. Morley, J. Asif, L. Hellyar and W. Blom. 2008. Molecular confirmation of species status for the rare cephalaspidean Melanochlamys lorrainae (Rudman, 1968), and comparison with its sister species M. cylindrica Cheeseman, 1881. Journal of Molluscan Studies 74: 267-276.

  • Krug, P., R. Ellingson, R. Burton and A. Valdes. 2007. new Poecilogonous species of sea slug (Opisthobranchia. Journal of Molluscan Studies: 29-38.

  • Zimmer, R., D. Schar, R. Ferrer, P. Krug, L. Kats and W. Michel. 2006. The scent of danger: Tetrodotoxin (TTX) as an olfactory cue of predation risk. Ecological Monographs 76: 585-600.

  • Krug, P. 2006. Defense of benthic invertebrates against surface colonization by larvae. Prog Mol Subcell Biol: 1-53.

  • Botello, G. and P. Krug. 2006. Desperate larvae revisited: Age, energy and experience affect sensitivity to settlement cues in larvae of the gastropod Alderia sp. Marine Ecology Progress Series: 149-159.

  • Ellingson, R.A. and P. Krug. 2006. Evolution of poecilogony from planktotrophy: cryptic speciation, phylogeography and larval development in the gastropod genus Alderia. Evolution 60: 2293-2310.

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Educational Background

  • 1998 – Ph.D., UCSD (Scripps Inst. Oceanography) (marine biology)

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  • RUI: Quantifying larval behavior to reconcile genetic connectivity with biophysical model predictions.

  • RUI: Speciation in the sea: Developmental Evolution and Host Shifts in the Sacoglossa

  • Collaborative Research: RUI: ARTS: Revisionary systematics of herbivorous sea slugs: identifying traits that promote diversification and morphological novelty.

  • RUI: Ecology and evolution of range limits in intertidal organisms.

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