Publications

 

George Roderick

Recent publications by our group in the areas of insects/plants/islands, biological control, insect symbionts, invasive insects, and population structure/molecular markers/diagnostics

(click on link for journal or PDF; please email me if PDF not posted below or if you do not have access to a journal)

Insects/ plants/ islands /biogeography

Schoville SD, Roderick GK (2010) Evolutionary diversification of cryophilic Grylloblatta species (Grylloblattodea: Grylloblattidae) in alpine habitats of California. Bmc Evolutionary Biology 10:163

Schoville SD, Roderick GK (2009) Alpine biogeography of Parnassian butterflies during Quaternary climate cycles in North America. Molecular Ecology 18, 3471-3485. Nardi F, Carapelli A, Boore JL, Roderick GK, Dallai R, Frati F (2010) Domestication of olive fly through multi-regional host shifts on cultivated olives: comparative using complete mitochondrial genomes Molecular Phylogenetics and Evolution 57, 678-686.

Roderick GK, Percy DM (2008) Host plant use, diversification, and coevolution:  Insights from remote oceanic islands. In: Specialization, speciation, and radiation. Evolutionary Biology of Herbivorous Insects (ed. Tilmon KJ), p 151-161. University of California Press, Berkeley. [email for pdf]

Goodman KR, Morris VRF, Welter SC, Roderick GK (2008) Isolation and characterization of microsatellite markers in an endemic Hawaiian planthopper (Nesosydne chambersi: Delphacidae). Molecular Ecology Resources 8, 1436-1438.

Gillespie RG, Claridge EM, Roderick GK (2008) Biodiversity dynamics in isolated island communities: interaction between natural and human-mediated processes. Molecular Ecology, 17, 45-57.

Drew AE, Roderick GK (2005) Insect biodiversity on plant hybrids within the Hawaiian silversword alliance (Asteraceae: Heliantheae-Madiinae). Environmental Entomology 34, 1095-1108.

Vandergast AG, Gillespie RG, Roderick GK (2004) Influence of volcanic activity on the population genetic structure of Hawaiian Tetragnatha spiders: fragmentation, rapid population growth, and the potential for accelerated evolution. Molecular Ecology 13, 1729-1743.

Roderick GK, Gillespie RG (2009) Island biogeography and evolution. In: Encyclopedia of Insects, 2nd Edition (eds. Resh VH, Cardé R), pp. 533-535. Academic Press, San Diego. [email for pdf]

Gillespie RG, Roderick GK (2002) Arthropods on islands: colonization, speciation, and conservation. Annual Review of Entomology 47, 595-632.

Vandergast AG, Roderick GK (2003) Mermithid nematode parasitism of Hawaiian Tetragnatha spiders in a fragmented landscape. Journal of Invertebrate Pathology 84, 128-136; Vandergast AG, Roderick GK (2004) Mermithid parasitism of Hawaiian Tetragnatha spiders in a fragmented landscape (figures). Journal of Invertebrate Pathology 85, 136-137.

Taiti S, Arnedo MA, Lew SE, Roderick GK (2003) Evolution of terrestriality in Hawaiian species of the genus Ligia (Isopoda, Oniscidea). Crustaceana Monographs 2, 85-102. [email for pdf]

Rivera MAJ, Howarth FG, Taiti S, Roderick GK (2002) Evolution in Hawaiian cave-adapted isopods (Oniscidea: Philosciidae): vicariant speciation or adaptive shifts? Molecular Phylogenetics and Evolution 25, 1-9.

Davies N, Roderick GK (2005) Dipteran sex chromosomes in evolutionary developmental biology. In: Wiegmann B, Yeates D, editors. Evolutionary Biology of Flies. New York: Columbia University Press. pp. 196-213. [email for pdf]

Lozier JD, Roderick GK, Mills NJ (2007) Genetic evidence from mitochondrial, nuclear, and endosymbiont markers for the evolution of host pant associated species in the aphid genus Hyalopterus (Hemiptera: Aphididae). Evolution 61, 1353-1367.

Lozier JD, Roderick GK, Mills NJ (2009) Molecular markers reveal geographic, but not host associated, genetic differentiation in the aphid parasitoid Aphidius transcaspicus a parasitoid of the aphid genus Hyalopterus. Bulletin of Entomological Research 99, 83-96.


Biological control

Petit JN, Hoddle MS, Grandgirard J, Roderick GK, Davies N (2009) Successful spread of a biocontrol agent reveals a biosecurity failure: Elucidating long distance invasion pathways for Gonatocerus ashmeadi in French Polynesia. BioControl 54, 485-495.

Roderick GK, Navajas M (2008) The primacy of evolution and biological control. In: Proceedings of the XII International Symposium on Biological Control of Weeds (eds. Julien MH, Sforza R, Bon MC, Evans HC, Hatcher PE, Hinz HL, Rector BG), p. 411-417. CAB International, Wallingford, UK. [email for pdf]

Roderick GK, Navajas M (2003) Genotypes in novel environments: Genetics and evolution in biological control. Nature Reviews Genetics 4, 889-899.

Roderick GK (2004) Tracing the origin of pests and natural enemies: genetic and statistical approaches. In: Genetics, Evolution, and Biological Control (eds. Ehler LE, Sforza R, Mateille T), pp. 97-112. CAB International, Wallingford, UK. [email for pdf]

Hufbauer RA, Roderick GK (2005) Microevolution in biological control: mechanisms, patterns, and processes. Biological Control 35: 227-239.

Grandgirard J, Hoddle MS, Roderick GK, Petit JN, Percy D, Putoa R, Garnier C, Davies N (2006) Invasion of French Polynesia by the glassy-winged sharpshooter, Homalodisca coagulata (Hemiptera: Cicadellidae): A new threat to the South Pacific. Pacific Science 60, 429-438.

Grandgirard J, Hoddle MS, Petit JN, Roderick GK, Davies N (2008) Engineering an invasion: classical biological control of the glassy-winged sharpshooter, Homalodisca vitripennis, by the egg parasitoid Gonatocerus ashmeadi in Tahiti and Moorea, French Polynesia. Biological Invasions, 10, 135-148.

Grandgirard J, Hoddle MS, Petit JN, Roderick GK, Davies N (2009) Invasive exotic vs. invasive exotic: successful classical biological control of the glassy-winged sharpshooter, Homalodisca vitripennis, by the egg parasitoid Gonatocerus ashmeadi in Tahiti and Moorea, French Polynesia. Biological Invasions in press. [email for pdf]

Grandgirard J, Hoddle MS, Petit JN, Percy D, Roderick GK, Davies N (2007) Pre-introductory risk assessment of Gonatocerus ashmeadi (Girault) (Hymenoptera: Mymaridae) for use as a classical biological control agent against Homalodisca vitripennis (Hemiptera: Cicadellidae) in the Society Islands of French Polynesia. Biocontrol Science and Technology, 17, 809-822.

Grandgirard J, Hoddle MS, Triapitsyn SV, Petit JN, Roderick GK, Davies N (2007) First records of Gonatocerus dolichocerus Ashmead (Hymenoptera: Mymaridae), Centrodora sp. (Hymenoptera: Aphelinidae), Chaetomymar sp. and Anagrus sp. (Hymenoptera: Mymaridae) in French Polynesia with notes on egg parasitism of the glassy-winged sharpshooter, Homalodisca vitripennis Germar (Hemiptera: Cicadellidae). Pan-Pacific Entomologist 83, 177-184.

Grandgirard J, Hoddle MS, Petit JN, Roderick GK, Davies N (2009) Classical biological control of the glassy-winged sharpshooter, Homalodisca vitripennis, by the egg parasitoid Gonatocerus ashmeadi in the Society, Marquesas and Australs archipelagos of French Polynesia. Biological Control 48, 155-163.

Hoddle MS, Grandgirard J, Petit JN, Roderick GK, Davies N (2006) Glassy-winged sharpshooter K.O.'ed -- first round -- in French Polynesia. Biocontrol News and Information 27(3): 47N-49N.

Petit JN, Hoddle MS, Grandgirard J, Roderick GK, Davies N (2008) Invasion dynamics of the glassy-winged sharpshooter Homalodisca vitripennis (Germar) (Hemiptera: Cicadellidae) in French Polynesia. Biological Invasions 10, 955-967.

Petit JN, Hoddle MS, Grandgirard J, Roderick GK, Davies N (2008) Short distance dispersal behavior and establishment of the parasitoid Gonatocerus ashmeadi (Hymenoptera: Mymaridae) in Tahiti: Implications for its use as a biological control agent against Homalodisca vitripennis (Hemiptera: Cicadellidae). Biological Control 45, 344-352.

Lozier JD, Roderick GK, Mills NJ (2008) Evolutionarily significant units in natural enemies: Identifying regional populations of Aphidius transcaspicus (Hymenoptera: Braconidae) for use in biological control of mealy plum aphid. Biological Control 46, 532-541


Insect symbionts

Charlat S, Hornett EA, Fullard JH, Davies N, Roderick GK, Wedell N, Hurst GDD (2007) Extraordinary flux in sex-ratio. Science 317, 214.

Charlat S, Homett EA, Dyson EA, Ho PHY, Thi Loc N, Schilthuizen M, Davies N, Roderick GK, Hurst GDD (2005) Prevalence and penetrance variation of male-killing Wolbachia across Indo-Pacific populations of the butterfly Hypolimnas bolina. Molecular Ecology 14, 3525-3530.

Charlat S, Duplouy A, Hornett EA, Dyson EA, Davies N, Roderick G, Wedell N, Hurst GDD (2009)  The joint evolutionary histories of Wolbachia and mitochondria in Hypolimnas bolina. Bmc Evolutionary Biology 9, 64.

Hornett EA, Charlat S, Duplouy AMR, Davies N, Roderick GK, Wedell N, Hurst GDD (2006) Evolution of male killer suppression in a natural population. Public Library of Science (PLoS) Biology 9, 1643-1648.

Hornett EA, Duplouy AMR, Davies N, Roderick GK, Wedell N, Hurst GDD, Charlat S, (2008) You can't keep a good parasite down: Evolution of male-killer suppressor uncovers cytoplasmic incompatibility. Evolution 62, 1258-1263.livepage.apple.com

Charlat S, Engelstädter J, Dyson EA, Hornett EA, Duplouy A, Tortosa P, Davies N, Roderick GK, Wedell N, Hurst GDD (2006) Competing selfish genetic elements in the butterfly Hypolimnas bolina. Current Biology 16: 2453-2458.

Charlat S, Reuter M, Dyson EA, Hornett EA, Duplouy A, Davies N, Roderick GK, Wedell N, Hurst GDD (2007) Male-killing bacteria trigger a cycle of increasing male fatigue and female promiscuity. Current Biology 17, 273-277.

Charlat S, Davies N, Roderick GK, Hurst GDD (2007) Disrupting the timing of Wolbachia-induced male-killing. Biology Letters 3, 154-156.


Invasive species

Chen YH, Berlocher SH, Opp SB, Roderick GK (2010) Post-colonization temporal genetic variation of an introduced fly, Rhagoletis completa. Genetica 138, 1059-1075.

Chen YH, Opp SB, Berlocher SH, Roderick GK (2006) Are bottlenecks associated with colonization? Genetic diversity and diapause variation of native and introduced Rhagoletis completa populations. Oecologia 149, 656-667.

Boubou A, Mingeon A, Roderick GK, Navajas M (2010) Recent emergence and worldwide spread of the tomato spider mite, Tetranychus evansi: genetic variation and multiple cryptic invasions. Biological Invasions on line first.

Marsico TD, Burt JW, Espeland EK, Gilchrist GW, Jamieson MA, Lindström L, Roderick GK, Swope S, Szücs M, Tstusui ND (2010) Underutilized resources for studying the evolution of invasive species during their introduction, establishment, and lag phases. Evolutionary Applications, 3, 203-219.

Roderick GK, Vernon P (2009) Biological invasions. In: Encyclopedia of Islands (eds. Gillespie RG, Clague DA), pp. 475-480. University of California Press, Berkeley. [email for pdf]

Hadjistylli M, Brown JH, Roderick GK (210) Tools and recent progress in studying gene flow and population genetics of the Bemisia tabaci sibling species group. In: Bemisia: Bionomics and Management of a Global Pest (eds. Stansly PA, Naranjo SE), pp. 69-103. Springer Science+Business Media B.V., Dordrecht. [email for pdf]

Lozier JD, Roderick GK, Mills NJ (2009) Tracing the invasion history of mealy plum aphid, Hyalopterus pruni (Hemiptera: Aphididae), in North America: a population genetics approach. Biological Invasions 11: 299-311.

Clarke, AR, Armstrong KF, Carmichael AE, Milne JR, Raghu S, Roderick GK, Yeates DK (2005) Invasive phytophagous pests arising through a recent tropical evolutionary radiation: The Bactrocera dorsalis complex of fruit flies. Annual Review of Entomology 50, 293-319.

Navia D, de Moraes GJ, Roderick GK, Navajas M (2005) The invasive coconut mite Aceria guerreronis (Acari: Eriophyidae): origin and invasion sources inferred from mitochondrial (16S) and nuclear (ITS) sequences. Bulletin of Entomological Research 95, 505-516.

Nardi F, Carapelli A, Vontas JG, Dallai R, Roderick GK, Frati F (2006) Geographical distribution and evolutionary history of organophosphate-resistant Ace alleles in the olive fly (Bactrocera oleae). Insect Biochemistry and Molecular Biology 36, 593-602.

Nardi F, Carapelli A, Dallai R, Roderick GK, Frati F (2005) Population structure and colonization history of the olive fly, Bactrocera oleae (Diptera, Tephritidae). Molecular Ecology 14, 2729-2738.

Mun J-H, Bohonak AJ, Roderick GK (2003) Population structure of the pumpkin fruit fly Bactrocera depressa (Tephritidae) in Korea and Japan: Pliocene allopatry or recent invasion? Molecular Ecology 12, 2941-2951.

Bohonak AJ, Davies N, Villablanca FX, Roderick GK (2001) Invasion genetics of New World medflies: testing alternative colonization scenarios. Biological Invasions 3, 103-111.

Roderick GK, Garcia de Mendoza L, Dively GP, Follett PA (2003) Sperm precedence in Colorado potato beetle, Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae): temporal variation assessed by neutral markers. Annals of the Entomological Society of America 96, 631-636.


Population structure/ molecular markers/ diagnostics

Rivera M, Andrews KR, Kobayashi DR, Wren JLK, Kelley C, Roderick GK, Toonen RJ (2011) Genetic analyses and simulations of larval dispersal reveal distinct populations and directional connectivity across the range of the Hawaiian Grouper (Epinephelus quernus). Journal of Marine Biology 2011: 765353.

Schoville SD, Lam AW, Roderick GK (2010) Molecular Ecology Resources Primer Development Consortium, Permanent genetic resources added to Molecular Ecology Resources database 1 October 2009–30 November 2009. Molecular Ecology Resources 10, 404-408.

Navajas M, Roderick GK (2008) Molecular diagnosis. In: Encyclopedia of Entomology (ed. Capinera JL), p. 191-196. Springer, Dordrecht. [email for pdf]

Duplouy A, Vermenot C, Davies N, Roderick GK, Hurst GDD, Charlat S (2008) Assessing risks of Wolbachia DNA cross-specimens contamination following mass collection and ethanol storage. Molecular Ecology Resources 9, 46-50.

Lozier JD, Foottit RG, Miller GL, Mills NJ, Roderick GK (2008) Molecular and morphological evaluation of the aphid genus Hyalopterus Koch (Insecta: Hemiptera: Aphididae), with a description of a new species. Zootaxa 1688, 1-19.

Savolainen V, Cowan RS, Vogler AP, Roderick GK, editors (2005) DNA barcoding of life. Papers of a Theme Issue. Philosophical Transactions of the Royal Society: Biological Sciences 360 (issue 1462), 1803-1950. (click on journal for free at link on CBoL website)

Savolainen V, Cowan RS, Vogler AP, Roderick GK, Lane R (2005) Towards writing the encyclopaedia of life: an introduction to DNA barcoding. Philosophical Transactions of the Royal Society: Biological Sciences 360, 1805-1811. (click on journal free at link on CBoL website)

Roderick GK, Navajas M (2009) Genetic Variation. In: Encyclopedia of Insects, 2nd Edition (eds. Resh, V.H., Cardé, R.), pp. 416-419. Academic Press, San Diego. [email for pdf]

Rivera MAJ, Kelley CD, Roderick GK (2004) Subtle population genetic structure in the Hawaiian grouper, Epinephelus quernus (Serranidae) as revealed by mitochondrial DNA analyses. Biological Journal of the Linnean Society 81, 449-468.

Rivera MAJ, Graham GC, Roderick GK (2003) Isolation and characterization of nine microsatellite loci from the Hawaiian grouper Epinephelus quernus (Serranidae) for population genetic analyses. Marine Biotechnology 5, 126-129.

Kimbell JR, McFall-Ngai MJ, Roderick GK (2002) Two genetically distinct populations of the bobtail squid, Euprymna scolopes, exist on the island of Oahu. Pacific Science 56, 347-355.

Epps CW, Palsbøll PJ, Wehausen JD, Roderick GK, Ramey II RR, McCullough DR (2005) Highways block gene flow and cause a rapid decline in genetic diversity of desert bighorn sheep. Ecology Letters 8, 1029-1038.

Epps CW, Palsbøll PJ, Wehausen JD, Roderick GK, McCullough DR (2006) Elevation and connectivity define genetic refugia for mountain sheep as climate warms. Molecular Ecology 15, 4295-4302.

Mun J-H, Song Y-H, Roderick GK (2004) Isolation and characterization of microsatellites in the brown planthopper, Nilaparvata lugens Stål. Korean Journal of Applied Entomology 43, 311-315.

Douhovnikoff V, Nerney C, Roderick GK, Newton CH, Welter SC (2006) Isolation of nine microsatellite loci in Dolichogenidea homoeosomae (Hymenoptera) a parasitoid of the sunflower moth Homoeosoma electellum (Lepidoptera). Molecular Ecology Notes, 6, 96-97.

Lozier JD, Mills NJ, Roderick GK (2006) Di- and tri-nucleotide repeat microsatellites for the parasitoid wasp, Aphidius transcaspicus. Molecular Ecology Notes, 6, 27-29.

Lozier JD, Mills NJ, Palsbøll PJ, Roderick GK (2005) Di- and tri-nucleotide repeat microsatellites isolated for the mealy plum aphid, Hyalopterus pruni. Molecular Ecology Notes 5, 499-501.

Bohonak AJ, Roderick GK (2002) Dispersal of invertebrates among temporary ponds: are genetic estimates accurate? Israel Journal of Zoology 47, 367-386. [email for pdf]


Selected publications before 2001, [email for pdfs]

Davies N, Villablanca FX, Roderick GK (1999) Determining the sources of individuals in recently founded populations: multilocus genotyping in non-equilibrium genetics. Trends in Ecology and Evolution 14, 17-21.

Mun J-H, Kim J-S, Song Y-H, Kim T-H, Roderick GK (2000) Molecular genetic diagnosis of four fruit fly species (Tephritidae). Journal of Asia-Pacific Entomology 3, 89-94.

Davies N, Villablanca FX, Roderick GK (1999) Bioinvasions of the medfly, Ceratitis capitata: source estimation using DNA sequences at multiple intron loci. Genetics 153, 351-360.

Villablanca FX, Roderick GK, Palumbi SR (1998) Invasion genetics of the Mediterranean fruit fly: variation in multiple nuclear introns. Molecular Ecology 7, 547-560. © Blackwell
Roderick GK, Davies N, Bohonak AJ, Villablanca FX (1998) The interface of population genetics and systematics: Invasion genetics of the Mediterranean fruit fly (Ceratitis capitata). In: Pest Management--Future Challenges. Proceedings of the Sixth Australasian Applied Entomological Research Conference (eds. Zalucki MP, Drew RAI, White GG), 1, 489-499. University of Queensland, Brisbane, Australia.

Roderick GK (1996) Population genetic studies of tephritid flies of economic importance. In: Fruit Fly Pests. A World Assessment of Their Biology and Management (eds. McPheron BA, Steck GJ), pp. 267-271. St. Lucie Press, Delray Beach, Florida.

Zhu M, Song Y-H, Uhm K-B, Turner RW, Lee J-H, Roderick GK (2000) Simulation of the long range migration of brown planthopper, Nilaparvata lugens (Stål), by using a boundary layer atmospheric model and geographic information system. Journal of Asia-Pacific Entomology 3, 25-32.

Mun JH, Song YH, Heong KL, Roderick GK (1999) Genetic variation among Asian populations of rice planthoppers, Nilaparvata lugens (Stål) and Sogatella furcifera Horvath (Homoptera: Delphacidae): mitochondrial DNA sequences. Bulletin of Entomological Research 89, 245-253.

Davies N, Roderick GK (2001) Determining the pathways of marine bioinvasion: genetical and statistical approaches. In J. Pederson (ed.), Marine Bioinvasions. pp. 251-255. MIT Press, Cambridge, MA.

Roderick GK (1996) Geographic structure of insect populations: gene flow, phylogeography, and their uses. Annual Review of Entomology 41, 263-290.

Bohonak AJ, Davies ND, Roderick GK, Villablanca FX (1998) Is population genetics mired in the past? Trends in Ecology and Evolution 13, 360.

Roderick GK, Howarth FG (1999) Invasion genetics: natural colonizations, non-indigenous pests, and classical biological control. In Yano E, Matsuo K, Shiyomi M, Andow D. (eds.), Biological Invasions of Pests and Beneficial Organisms. National Institute of Agro-Environmental Sciences, Tsukuba, Japan. NIAES Series 3. 232 p.

Chang WXZ, Tabashnik BE, Artelt B, Malvar T, Ballester V, Ferrè J, Roderick GK (1997) Mitochondrial DNA sequence variation among geographic strains of diamondback moth (Lepidoptera: Plutellidae). Annals of the Entomological Society of America 90, 590-595.

Follett PA, Roderick GK (1996) Genetic estimates of dispersal ability of the Leucaena psyllid predator Curinus coeruleus (Coleoptera: Coccinellidae): implications for biological control. Bulletin of Entomological Research 84, 355-361.

Dively GP, Follett PA, Linduska JJ, Roderick GK (1998) The use of imidachloprid-treated row mixtures for Colorado potato beetle (Coleoptera: Chrysomelidae) management. Journal of Economic Entomology 91, 376-387.

Follett PA, Roderick GK (1996) Adaptation to insecticides in Colorado potato beetle: single- and meta-population models. In: Chrysomelidae Biology, vol. 4 (eds. Jolivet PHA, Cox ML), pp. 289-302. SPB Academic Publishing, Amsterdam.

Follett PA, Cantelo WW, Roderick GK (1996) Local dispersal of overwintered Colorado potato beetle (Chrysomelidae: Coleoptera) determined by mark and recapture. Environmental Entomology 25, 1304-1311.

Azeredo-Espin AML, Schroder RFW, Roderick GK, Sheppard WS (1996) Intraspecific mitochondrial DNA variation in the Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae). Biochemical Genetics 34, 253-264.

Coll M, Garcia de Mendoza L, Roderick GK (1994) Population structure of a predatory beetle: the importance of gene flow for intertrophic level interactions. Heredity 72, 228-236.

Hardin MR, Benrey B, Coll M, Lamp W, Roderick GK, Barbosa P (1995) Arthropod pest resurgence: An analysis of potential mechanisms. Crop Protection 14, 3-18.

Gillespie RG, Howarth FG, Roderick GK (2001) Adaptive Radiation. In: Encyclopedia of Biodiversity (ed. Levin SA), pp. 25-44. Academic Press, New York.

Gillespie RG, Roderick GK (2000) Endless Forms: Species and Speciation. Review of D.J. Howard and S.H. Berlocher, eds. Heredity 84:269-70.

Baco AR, Smith CR, Peek AS, Roderick GK, Vrijenhoek RC (1999) Relationship of whale-fall clams to vesicomyid clams found at hydrothermal vents, cold seeps, and anoxic basins based on mitochondrial COI sequence phylogeny. Marine Ecology Progress Series 182, 137-147.

Roderick GK, Gillespie RG (1998) Speciation and phylogeography of Hawaiian terrestrial arthropods. Molecular Ecology 7, 519-531. © Blackwell

Roderick GK, Gillespie RG (1998) Alien invertebrates in Hawaii: trouble in paradise. Aliens 8, 2-3.

Roderick GK (1998) Genetic structure and local adaptation in natural insect populations; review of eds. Mopper S, Strauss SY. Heredity 81:470-471.

Denno RF, Roderick GK, Peterson MA, Huberty AF, Döbel HG, Eubanks MD, Losey JE, Langellotto GA (1996) Habitat persistence underlies intraspecific variation in the dispersal strategies of planthoppers. Ecological Monographs 66, 389-408.

Roderick GK (1994) Genetics of host plant adaptation in delphacid planthoppers. In: Planthoppers: Their Ecology and Management (eds. Denno RF, Perfect TJ), pp. 551-570. Chapman and Hall, London.

Roderick GK, Metz EC (1997) Biodiversity of planthoppers (Hemiptera: Delphacidae) on the Hawaiian silversword alliance: effects of host plant history and hybridization. Memoirs of the Museum of Victoria 56, 393-399.

Roderick GK (1997) Herbivorous insects and the Hawaiian silversword alliance: coevolution or cospeciation? Pacific Science 51, 440-449.

Denno RF, Roderick GK (1992) Density-related dispersal in planthoppers: effects of interspecific crowding. Ecology 73, 1323-1334.

Denno RF, Roderick GK, Olmstead K, Döbel HG (1991) Density-related migration in planthoppers: the role of habitat persistence. American Naturalist 138 1513-1541.

Denno RF, Roderick GK (1990) Population biology of planthoppers. Annual Review of Entomology 35, 489-520.