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Linn, Charles Edward
Senior Research Associate II
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Positions
- Senior Research Associate, Entomology at Geneva
My position as Senior Research Associate II serves to bring a level of expertise in Insect Behavior to the Chemical Ecology program on the Entomology Department. A fundamental responsibility is to design and conduct a multidisciplinary, collaborative,research program that allows, as a PI or Co-PI, for sustained funding for the behavior/neuroethology studies. Our research program has both basic and applied aspects, studying basic processes involved in olfaction, and the development of monitoring and control tools for agriculture.
Research Areas
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Affiliations
Research
research overview
- Insect Behavior and Chemical Communication Systems. Current projects include: 1) Evolution of Rhagoletis fruit flies (funded by NSF), 2) Identification of host volatiles used by Asian citrus psyllid, 3) Rearing pear psylla for pear fruit transformation project (Southern Gardens Citrus Grooves), 4) identification of pheromone receptors in the European and Asian corn borer moths.
research activities
principal investigator on
- COLLABORATIVE RESEARCH: DOES SEQUENTIAL SPECIATION AMPLIFY BIODIVERSITY ACROSS TROPHIC LEVELS awarded by DIRECTORATE FOR BIOLOGICAL SCIENCES NSF 2012 - 2015
- THE CHEMICAL ECOLOGY OF EAVESDROPPING: OLFACTORY-BASED HOST LOCATION & SPECIALIZATION IN PHYTOPHAGOUS INSECTS awarded by NATIONAL INSTITUTE OF FOOD AND AGRICULTURE-USDA 2012 - 2015
co-principal investigator on
area(s) of concentration/expertise
keywords
- chemical ecology
- evolution
- flight tunnel
- host location
- neuroethology
- odor discrimination
submitted impact statement
Publications
individual publications
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academic article
- A field test for host odour discrimination and avoidance behavior for Rhagoletis pomonella flies in the western United States. Journal of Evolutionary Biology. 25:961-971. 2012
- A single mutation to a sex pheromone receptor provides adaptive specificity between closely related moth species.. Proceedings of the National Academy of Sciences of the United States of America. 109:14081-14086. 2012
- Adult and larval abundance of apple maggot fly (Diptera: Tephritidae) in native black-fruited hawthorns in central Washington State.. J. insect science. 12:1-14. 2012
- Behavioral evidence for fruit odor discrimination and sympatric host races of Rhagoletis pomonella flies in the western United States.. Entomologia Experimentalis et Applicata. 66. 2012
- Geographic variation in fruit volatiles emitted by the hawthorn Crataegus mollis and its consequences for host race formation in the apple maggot fly, Rhagoletis pomonella (Diptera: Tephrotidae). . Entomologia Experimentalis et Applicata. 143:254-268. 2012
- Identification of host fruit volatiles from domestic apple (Malus domestica), native black hawthorn (Crataegus douglasii) and introduced ornamental hawthorn (C. monogyna) attractive to Rhagoletis pomonella flies from the western United States. Journal of Chemical Ecology. 38:319-329. 2012
- On the scent of standing variation for speciation: Behavioral evidence for native sympatric host races of Rhagoletis pomonella (Diptera: Tephritidae) in the southern United States.. Evolution. 66:2739-2756. 2012
- The response to selection for broad male response to female sex pheromone and its implications for divergence in close-range mating behavior in the European corn borer moth, Ostrinia nubilalis. Journal of Chemical Ecology. 38:1504-1512. 2012
- Eavesdropping on plant volatiles by a specialist moth: significance of ratio and concentration.. PLoS One. 6:8. 2011
- Electrophysiological and behavioral identification of a volatile blend involved in host location of female strawberry sap beetle Stelidota geminata. Entomologia Experimentalis et Applicata. 140:153-162. 2011
- Identification of host fruit volatiles from three mayhaw species (Crataegus series Aestivales) attractive to mayhaw-origin Rhagoletis pomonella flies in the southern United States.. Journal of Chemical Ecology. 37:961-973. 2011
- Identification of host fruit volatiles from two host plants, green hawthorn (Crataegus viridis) and blueberry hawthorn (Crataegus brachyacantha) attractive to different phenotypes of southern Rhagoletis pomonella flies.. Journal of Chemical Ecology. 37:974-983. 2011
- Methyl 2-(methylthio) benzoate: a sex attractant for the June beetles, Phyllophaga tristis and P. apicata.. Journal of Insect Science. 11. 2011
- Monitoring grape berry moth (Paralobesia viteana: Lepidoptera) in commercial vineyards using a host plant based synthetic lure. . Environmental Entomology. 40:1511-1522. 2011
- Homology of olfactory receptor neuron response characteristics inferred from hybrids between Asian and European corn borer moths (Lepidoptera: Crambidae). Journal of Insect Physiology. 56:73-80. 2010
- Sex Pheromone Receptor Specificity in the European Corn Borer Moth, Ostrinia nubilalis. PLoS One. 5. 2010
- Comparing peripheral olfactory coding with host preference in the Rhagoletis species complex. Chemical Senses. 34:37-48. 2009
- Comparing Peripheral Olfactory Coding with Host Preference in the Rhagoletis Species Complex. Chemical Senses. 34:37-48. 2008
- Experimental evidence for three pheromone races of the scarab beetle Phyllophaga anxis (LeConte). Journal of Chemical Ecology. 34:205-214. 2008
- Flight tunnel responses of female grape berry moth (Paralobesia viteanna) to host plants. Journal of Chemical Ecology. 34:622-627. 2008
- Identification and field evaluation of grape shoot volatiles attractive to female grape berry moth (Paralobesia viteana). Journal of Chemical Ecology. 34:1180-1189. 2008
- Olfactory neuron responsiveness and pheromone blend preference in hybrids between Ostrinia furnacalis and O. nubilalis (Lepidoptera: Crambidae). Journal of Insect Physiology. 54:1261-1270. 2008
- Altered olfactory receptor neuron responsiveness in rare European corn borer males (Ostrinia nubilalis) attracted to Asian corn borer (O. furnacalis) pheromone blend. Journal of Insect Physiology. 53:1063-1071. 2007
- Evidence of olfactory antagonistic imposition as a facilitator of evolutionary shifts in pheromone blend usage in Ostrinia spp. (Lepidoptera: Crambidae). Journal of Insect Physiology. 53:488-496. 2007
- More Rare Males in Ostrinia: Response of Asian Corn Borer Moths to the Sex Pheromone of the European Corn Borer. Journal of Chemical Ecology. 33:199-212. 2007
- Support for (Z)-11-hexadecanal as a pheromone antagonist in Ostrinia nubilalis: flight tunnel and single sensillum studies with a New York population. Journal of Chemical Ecology. 33:909-921. 2007
- Effects of egg-to-adult development time and adult age on olfactory neuron response to semiochemicals in European corn borers. Journal of Insect Physiology. 52:975-983. 2006
- Receptor expression and sympatric speciation: unique olfactory receptor neuron responses in F1 hybrid Rhagoletis populations. Journal of Experimental Biology. 209:3729-3741. 2006
- Sex pheromone of the cranberry root grub Lichnanthe vulpine. Journal of Chemical Ecology. 32:357. 2006
- The chemosensory basis for behavioral divergence involved in sympatric host shifts I. Characterizing olfactory receptor neuron classes responding to key host volatiles. J. Comp. Physiol. A. 192:279-288. 2006
- Antagonist effects of non-host fruit volatiles on discrimination of host fruit by Rhagoletis flies infesting apple (Malus pumila), hawthorn (Crataegus spp.), and flowering dogwood (Cornus florida). Entomol. Exp. Appl.. 114:97-105. 2005
- Plasticity in central olfactory processing and pheromone blend discrimination following inter-species antennal imaginal disc transplantation. J. of Comp. Neurol.. 491:141-156. 2005
- The chemosensory basis for behavioral divergence involved in sympatric host shifts II: olfactory receptor neuron sensitivity and temporal firing pattern to individual key host volatiles. Journal of Comparative Physiology A. 192:289-300. 2005
- The genetic basis for fruit odor discrimination in Rhagoletic flies and its significance for sympatric host shifts. Evolution. 59:1953-1964. 2005
- Variability in response specificity of apple, hawthorn, and flowering dogwood-infesting Rhagoletis flies to host fruit volatile blends: Implications for sympatric host shifts. Entomol. Exp. Appl.. 116. 2005
- Postzygotic isolating factor in sympatric speciation in Rhagoletis flies: Reduced response of hybrids to parental host-fruit odors. Proceedings at the National Academy of Science USA. 10:17753-17758. 2004
- Consequences of Inter-species Antennal Imaginal Disc Transplantation on Organization of Olfactory Glomeruli and Pheromone Blend Discrimination. The Journal of Comparative Neurology. 466:377-388. 2003
- Fruit Odor Discrimination and Sympatric Host Race Formation in Rhagoletis. Proceedings at the National Academy of Science USA. 100:11490-11493. 2003
- Identification of host fruit volatiles from flowering dogwood (Cornus florida) attractive to dogwood-origin Rhagoletis pomonella flies. Journal of Chemical Ecology. 29:2347-2357. 2003
- Identification of host fruit volatiles from hawthorn (Crategous spp.) attractive to hawthorn-origin Rhagoletis pomonella flies. Journal of Chemical Ecology. 29:319-354. 2003
- Identification of the female-produced sex pheromone of the scarab beetle, Hoplia equina. Journal of Chemical Ecology. 29:1635-1642. 2003
- Silent genes and rare males: A fresh look at pheromone response specificity in the European corn borer moth, Ostrinia nubilalis. Journal of Insect Science. 3:15. 2003
- Unusual pheromone receptor neuron responses in moth antennae derived from inter-species transplantation of antennal imaginal discs. The Journal of Comparative Neurology. 189:19-28. 2003
- Evolution of moth sex pheromones via ancestral genes. Proceedings at the National Academy of Science USA. 99:13621-13626. 2002
- Emergence, mating, and post-mating behaviors of the oriental beetle (Coleoptera: Scarabaeidae). Journal of Insect Behavior. 12:175-192. 1999
- Pheromone-blend discrimination by European corn borer moths with inter-race and inter-sex antennal transplants. Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology. 184:273-278. 1999
- Temporal and spatial distribution of the oriental beetle, Exomala orientalis (Coleoptera: Scarabaeidae) in a golf course environment. Environmental Entomology. 28:14-21. 1999
- Correlation between changes in host behaviour and octopamine levels in the tobacco hornworm Manduca sexta parasitized by the gregarious braconid parasitoid wasp Cotesia congregata. Journal of Experimental Biology. 200:117-127. 1997
- Essential amino acid methyl esters: Major sex pheromone components of the cranberry white grub, Phyllophaga anxia (Coleoptera: Scarabaeidae). Journal of Chemical Ecology. 23:231-245. 1997
- Sex pheromone blend discrimination in two races and hybrids of the European corn borer moth, Ostrinia nubilalis. Physiological Entomology. 22:212-223. 1997
- Characterization of Drosophila tyramine B-hydroxylase gene and isolation of mutant flies lacking octopamine. Journal of Neuroscience. 16:3900-3911. 1996
- Effects of photoperiod on the circadian timing of pheromone response in male Trichoplusia ni: Relationship to the modulatory action of octopamine. Journal of Insect Physiology. 42:881-891. 1996
- Evidence for the presence of a pheromonotropic factor in hemolymph and regulation of sex pheromone production in Helicoverpa zea. Journal of Insect Physiology. 41:501-508. 1995
- Pheromone behavioral responses in unusual male European corn borer hybrid progeny not correlated to electrophysiological phenotypes of their pheromone-specific antennal neurons. Cellular and Molecular Life Sciences. 51:809-816. 1995
- The role of neurohormonal octopamine during ‘fight or flight’ behaviour in the field cricket Gryllus bimaculatus. Journal of Experimental Biology. 198:1691-1700. 1995
- Circadian changes in melatonin in the nervous system and hemolymph of the cabbage looper moth, Trichoplusia ni. Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology. 176:761-771. 1994
- Identification and synthesis of the female sex pheromone of the oriental beetle, Anomala orientalis. Journal of Chemical Ecology. 20:2415-2427. 1994
- Sex pheromone responses of the Oriental beetle (Coleoptera: Scarabaeidae). Environmental Entomology. 23:1508-1515. 1994
- Studies on biogenic amines and metabolites in nervous tissue and hemolymph of male cabbage looper moths—III. Fate of injected octopamine, 5-hydroxytryptamine and dopamine. Comparative Biochemistry and Physiology Part C: Pharmacology, Toxicology and Endocrinology. 108:99-106. 1994
- Studies on biogenic amines and their metabolites in nervous tissue and hemolymph of adult cabbage looper moths: I. Quantitation of photoperiod changes. Comparative Biochemistry and Physiology Part C: Pharmacology, Toxicology and Endocrinology. 108:73-85. 1994
- Studies on biogenic amines and their metabolites in nervous tissue and hemolymph of male cabbage looper moths—II. Photoperiod changes relative to random locomotor activity and pheromone-response thresholds. Comparative Biochemistry and Physiology Part C: Pharmacology, Toxicology and Endocrinology. 108:87-98. 1994
- Levels of biogenic amines and peptides in individual corn earworm moths, Helicoverpa zea, using high performance liquid chromatography with electrochemical detection. Insect Biochemistry and Molecular Biology. 23:367-373. 1993
- Activity of perfluorobutyl-containing components in pheromone blend of cabbage looper moth, Trichoplusia ni. Journal of Chemical Ecology. 18:737-748. 1992
- Importance of photoperiod cues in regulating the modulatory action of octopamine and 5-hydroxytryptamine on locomotor and pheromone response in male gypsy moths, Lymantria dispar. Archives of Insect Biochemistry and Physiology. 20:265-284. 1992
- Photoperiod cues and the modulatory action of octopamine and 5-hydroxytryptamine on locomotor and pheromone response in male gypsy moths, Lymantria dispar. Archives of Insect Biochemistry and Physiology. 20:265-284. 1992
- Role of photoperiod cues in regulating the modulatory action of octopamine on pheromone-response thresholds in the cabbage looper moth. Archives of Insect Biochemistry and Physiology. 20:285-302. 1992
- The effects of different blend ratios and temperature on the active space of the Oriental fruit moth sex pheromone. Physiological Entomology. 16:211-222. 1991
- Unique sex chromosome mediated behavioral response specificity of hybrid male European corn borer moths. Cellular and Molecular Life Sciences. 47:980-984. 1991
- Response specificity of male moths to multicomponent pheromones. Chemical Senses. 14:421-437. 1989
- Specificity of male response to multicomponent pheromones in the noctuid moths Trichoplusia ni and Pseudoplusia includens. Journal of Chemical Ecology. 14:47-57. 1988
- Temperature modulation of behavioral thresholds controlling male moth sex pheromone response specificity. Physiological Entomology. 13:59-67. 1988
- Comparison of electroantennograms from female and male cabbage looper moths, Trichoplusia ni. of different ages and for various pheromone concentrations. Journal of Chemical Ecology. 13:1443-1454. 1987
- Identification of unique pheromone components for the soybean looper moth, Pseudoplusia includens. Journal of Chemical Ecology. 13:1351-1360. 1987
- Neuroactive substances as probes of central thresholds in sex pheromone perception. J. Cell Biochem. 10:54. 1987
- Pheromone components and active spaces: What do male moths smell and where do they smell it?. Science. 237:650-652. 1987
- Male moth sensitivity to multicomponent pheromones: The critical role of the female released blend in determining the functional role of components and the active space of the pheromone. Journal of Chemical Ecology. 12:659-668. 1986
- Modulatory effects of octopamine and serotonin on thresholds for male sensitivity and periodicity of response to sex pheromone in the cabbage looper, Trichoplusia ni. Archives of Insect Biochemistry and Physiology. 3:161-172. 1986
- Behavioral responses of male turnip moths, Agrotis segetum, to sex pheromone in a flight tunnel and in the field. Journal of Chemical Ecology. 11:1209-1221. 1985
- Multiple effects of octopamine and chlordimeform on pheromone response thresholds in the cabbage looper moth, Trichoplusia ni. Pesticide Science. 16:445-446. 1985
- Response specificity of male pink bollworm moths to different blends and dosages of sex pheromone. Journal of Chemical Ecology. 11:1583-1590. 1985
- Artificial selection for new pheromone strains of redbanded leafroller moths, Argyrotaenia velutinana. Contr. Shanghai Inst. Entomol. 4:21-30. 1984
- Identification of new sex pheromone components in Trichoplusia ni predicted from biosynthetic precursors. Journal of Chemical Ecology. 10:1309-1323. 1984
- Redundancy in a chemical signal: Behavioral responses of male Trichoplusia ni to a 6-component sex pheromone blend. Journal of Chemical Ecology. 10:1635-1658. 1984
- Sublethal effects of neuroactive compounds on pheromone response thresholds in male Oriental fruit moths. Archives of Insect Biochemistry and Physiology. 1:331-344. 1984
- Effect of varying proportions of the alcohol component on sex pheromone blend discrimination in male Oriental fruit moths. Physiological Entomology. 8:291-306. 1983
- Sex pheromone of the winter moth, a geometrid with unusually low temperature precopulatory responses. Science. 217:657-659. 1982
- Behavioral function of the components and the blend of the sex pheromone of the cabbage looper, Trichoplusia ni. Environmental Entomology. 10:751-755. 1981
- Behavioral responses of male Trichoplusia ni in a sustained-flight tunnel to the two-component sex pheromone components. Environmental Entomology. 10:379-385. 1981
- Modification of sex pheromone blend discrimination in male Oriental fruit moths by pre-exposure to (E)-8-dodecenyl acetate. Physiological Entomology. 6:421-429. 1981
- Crowding effects on female pheromone production and male responsiveness in Trichoplusia ni. Environmental Entomology. 7:741-74. 1978
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article
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booksection
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chapter
- Pheromone communication in the moths and its role in the speciation process. Speciation and the recognition concept: Theory and application. 263-300. 1995
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conference paper
- Effects of octopaminergic agents on the sex pheromone-mediated behavior of adult lepidoptera. Sites of Action for Neurotoxic Pesticides. 162-173. 1987
- Neuroactive substances as probes of central thresholds in sex pheromone perception. Molecular Entomology, UCLA Symposium on Molecular and Cellular Biology, New Series. 67-77. 1987
- Identification of new sex pheromones in Trichoplusia ni and Argyrotaenia velutinana, predicted from biosynthetic precursors. Semiochemistry: Flavors and Pheromones. 223-237. 1985
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document part
- Effect of antennal grafts between two moth species on olfactory processing of sex pheromones. 618. 2000
- How does the parasitic wasp Cotesia congregata suppress feeding in its host the tobacco hornworm, Manduca sexta?. 1407. 1996
- Comparison of biogenic amine levels in the nervous system of Drosophila: Wild-type vs. a mutant for tyramine-beta-hydroxylase. 631. 1995
- Hemolymph levels of octopamine increase during aggressive behavior in field crickets. 581. 1994
- Melatonin in an insect nervous system: Diel changes associated with photoperiod cues. 1551. 1993
- Neuroactive substances as probes of central thresholds in sex pheromone perception. 54. 1987
- Multiple effects of octopamine and chlordimeform on pheromone response thresholds in the cabbage looper moth 1985
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review
Teaching
teaching overview
- three lectures in BioEE, Entom, & BioNB 369, Chemical Ecology, Spring 2008
- three lectures in BioEE, Entom, & BioNB 369, Chemical Ecology, Spring 2009
Service
outreach overview
- I have actively engaged in community outreach/teaching, divided into three different categories: 1) presentations to local elementary and middle school classes; 2) presentations to groups touring the experiment station, and 3) events that the station participates in on an annual basis.
- I have actively engaged in community outreach/teaching, divided into three different categories: 1) presentations to local elementary and middle school classes; 2) presentations to groups touring the experiment station, and 3) events that the station participates in on an annual basis. For the year 2009: 1. March 17, 2009. School of Inquiry, Rochester, NY. Marianne Burke, Mrs. Sookram, 1st grade. 2. April 27, 29, May 1. Teaching, Chemical Ecology class, Ithaca. 3. April 29, Cole Gilbert and Insect physiology class to station. 4. May 11, Victor elementary, Lindsey Mcllveen, 3rd grade class. 5. May 18, West St. Elementary, 4 2nd grade classes. 6. June 9th, Marion Elementary school. Two 3rd grade classes 7. July 21st, HWS summer science camp, Pat Harling. 8. July 22nd, Tot Spot 2 and 3, Ontario and Macedon, NY. Carrie Shurr. 9. July 22nd, North Street Summer Science Camp, 9-12. 10. August 10-14, Empire Farm Days. 11. August 25, Entomology Graduate Students visit to Geneva. Flight tunnel and lunch. 12. September 19, Day on the Farm, all day, 4000+ visitors. 13. October 15, West St elementary. Second Grades: Amanda Carole, Mary Anne Hanna, Ashley Millerd. 14. October 22, West St elementary. Second Grades: Maria Bond, Alyson Yoder, Donna Baxter
- Research demonstration for high school teachers (Midlakes High School)
- community education, a three day event a Empire Farm days as part of the Cornell University pavilion
- elementary school insect demonstration, 2nd grades, West Street Elementary, Geneva NY 9 classes in three days
- mentored hugh school student (Lindsay Joyner, Greenwich High School, NY) in student research commetition
- science education, elementary school, as part of 6 week summer science camp
service to the profession
- SIGMA XI Member 1979 -
- Phi Kappa Phi Member 1975 -
- International Society of Chemical Ecology
reviewer or editor for
- Chemical Senses
- Chemoecology
- Entomologia Experimentalis et Applicata
- Environmental Entomology
- Environmental Entomology, Subject of Chemical Ecology
- Environmental Entomology, Subject of Chemical Ecology
- Florida Entomologist
- GREAT LAKES FISHERY COMMISSION
- Insect Science
- Journal of Chemical Ecology
- Journal of Comparative Physiology A
- Journal of Insect Physiology
- National Science Foundation
- Philippine Agricultural Scientist
- Proceedings of the Royal Society B
Background
education and training
- Ph.D. in Entomology, University of California, Riverside 1979
- M.S. in Biology, California State University, Long Beach 1977
- California State University at Dominguez Hills 1973
awards and honors
Other
college
- CALS
research keyword
- chemical ecology
- evolution
- flight tunnel
- host location
- neuroethology
- odor discrimination
name prefix
- Dr.
name suffix
- Jr