Curriculum Vitae

John D. Hatle
University of North Florida
Department of Biology
4567 Saint John’s Bluff Road South
Jacksonville, FL, USA 32224
jhatle@unf.edu; 904-620-2778
http://www.unf.edu/coas/biology/JHatle.html

EDUCATION

Ph.D. Univ of Louisiana at Lafayette, USA (1998) Major advisor: Jeffrey Spring
B.A. Luther College, Decorah, Iowa, USA (1991)

PROFESSIONAL POSITIONS

Assistant Professor (2003-present), Univ of North Florida
Post-doctoral Researcher (1998-2003), Illinois State University
Teaching Assistant (1997-1998), Univ of Louisiana at Lafayette
University Fellow (1993-1997), Univ of Louisiana at Lafayette

PUBLICATIONS (undergraduate authors underlined)

Hatle JD, SM Wells, LE Fuller, IC Allen, LJ Gordy, S Melnyk and J Quattrochi (2006) Calorie restriction and late-onset calorie restriction extend lifespan but do not alter protein storage in female grasshoppers. Mechanisms of Ageing and Development 127:883-891. PDF

Hatle JD, T Waskey Jr and SA Juliano (2005) Plasticity of grasshopper vitellogenin production in response to diet is primarily a result of changes in fat body mass. Journal of Comparative Physiology B. 176:27-34. PDF

Fei H, TR Martin, KM Jaskowiak, JD Hatle, DW Whitman and DW Borst (2005) Starvation affects vitellogenin production but not vitellogenin mRNA levels in the lubber grasshopper, Romalea microptera. Journal of Insect Physiology 51:435-443. PDF

Juliano SA, JR Olson, EG Murrell and Hatle JD (2004) Plasticity and canalization of insect reproduction: Testing alternative models of life history transitions. Ecology 81:2986-2996. PDF

Hatle JD, AL Andrews, MC Crowley and SA Juliano (2004) Interpopulation variation in developmental titers of vitellogenin, but not storage protein, in lubber grasshoppers. Physiological and Biochemical Zoology 77:631-640. PDF

Gunawardene EU, RE Stephenson, JD Hatle and SA Juliano (2004) Are reproductive tactics determined by local ecology in the eastern lubber grasshopper Romalea microptera (Orthoptera: Acrididae)? Florida Entomologist 87:119-123. PDF

Hatle JD (2003) Physiology underlying phenotypic plasticity and polyphenisms: introduction to the symposium. Integrative and Comparative Biology 43:605-606. PDF

Hatle JD, DW Borst and SA Juliano (2003) Plasticity and canalization in the control of reproduction in the lubber grasshopper. Integrative and Comparative Biology 43:635-645. PDF

Hatle JD, WA Miller and DW Borst (2003) Canalization of development and ecdysteroid timing during the last instar in lubber grasshoppers. Journal of Insect Physiology 49:73-80. PDF

Hatle JD, SA Juliano, DW Borst (2003) Hemolymph ecdysteroids do not affect vitellogenesis in the lubber grasshopper. Archives of Insect Biochemistry and Physiology 52:45-57. PDF

Hatle JD, BA Salazar and DW Whitman (2002) Survival advantage of sluggish individuals in aggregations of aposematic prey, during encounters with ambush predators. Evolutionary Ecology 16:415-431. PDF

Hatle JD, JH Spring and JAT Dow (2002) Ion and water transport in the orthopteran alimentary canal: a comparison of Mantidae and Acrididae. Journal of Orthoptera Research 10(2).

Hatle JD, MC Crowley, AL Andrews and SA Juliano (2002) Geographic variation of reproductive tactics in lubber grasshoppers. Oecologia 132:517-523. PDF

Luker LA, JD Hatle and SA Juliano (2002) Reproductive responses to photoperiod by south Florida population of the grasshopper, Romalea microptera (Orthoptera: Romaleidae). Environmental Entomology 31:702-707.

Hatle JD, DW Borst, ME Eskew and SA Juliano (2001) Maximum titers of vitellogenin and total hemolymph protein occur during the canalized phase of grasshopper egg production. Physiological and Biochemical Zoology 74:885-893. PDF

Hatle JD, BA Salazar and DW Whitman (2001) Sluggish movement and repugnant odor are positively interacting defensive traits in encounters with frogs. Journal of Insect Behavior 14:479-496. PDF

Hatle JD and DW Whitman (2001) Sluggish movement of conspicuous insects as a defense mechanism against motion-oriented predators. In: T. Ananthakrishan (Ed). Insect and Plant Defense Dynamics. Oxford & I.B.H. pp. 209-228.

Hatle JD and BA Salazar (2001) Aposematic coloration of gregarious insects can delay predation by an ambush predator. Environmental Entomology 30:51-54. PDF http://journals.entsoc.org/environ/v30n1/v30n1p51.pdf

Hatle JD, SA Juliano and DW Borst (2000) Juvenile hormone is a marker of the onset of canalized reproduction in lubber grasshoppers. Insect Biochemistry and Molecular Biology 30:821-827. PDF

Borst DW, MR Eskew, SJ Wagner, KM Shores, J Hunter, LA Luker, JD Hatle and LB Hecht (2000) Quantification of juvenile hormone III, vitellogenin, and vitellogenin-mRNA during the oviposition cycle of the lubber grasshopper. Insect Biochemistry and Molecular Biology 30:813-819. PDF

Hatle JD and JH Spring (1999) Tests of potential adipokinetic hormone precursor related peptide (APRP) functions: lack of responses. Archives of Insect Biochemistry and Physiology 42:163-166.

Hatle JD and SG Faragher (1998) Slow movement increases the survivorship of a chemically defended grasshopper in predatory encounters. Oecologia 115:260-267. PDF

Hatle JD and JH Spring (1998) Inter-individual variation in sequestration (as measured by energy dispersive spectroscopy) predicts efficacy of defensive secretion in lubber grasshoppers. Chemoecology 8:85-90.

Hatle JD and JH Spring (1998) AKHs in fifth instar Romalea guttata (Orthoptera: Acrididae): activation of glycogen phosphorylase does not produce hypertrehalosemia. Florida Entomologist 81:535-542.

Hatle JD and VR Townsend, Jr. (1996) Defensive secretion of a flightless grasshopper: failure to prevent lizard attack. Chemoecology 7:184-188.

FUNDING AND AWARDS

Testing direct effects of reproduction on stress and mortality via ovariectomy (2006) National Institute of Aging Academic Research Enhancement Award. $166,488.

Testing direct effects of reproduction on stress and mortality via ovariectomy (2006) Matching Award from UNF College of Arts and Sciences. $12,000.

Thresholds in animal development (2006) Seed Grant from UNF Environmental Center. $5000

Roles of Blood Sugar and Insulin in Aging: Developing a Grasshopper Model System (2005) University of North Florida Proposal Development Grant. $5000.

Development of Laboratories for Graduate Environmental Physiology (2005) University of North Florida Teaching Grant. $5000. (declined)

Testing Diets for Extending Lifespan of Grasshoppers (2004) University of North Florida Undergraduate Research Grant. $1500, supervisor of Sean Wells.

Symposium: Physiology underlying phenotypic plasticity and polyphenisms (2002) National Science Foundation Grant. $4715, Project director.

Proteins in plastic and population variation in egg production in grasshoppers (2002) Post-doctoral award for travel to American Physiological Society meeting “The Power of Comparative Physiology: Evolution, Integration and Application.” $400 + registration.

Faculty mentor appreciation award (2000) ISU Red Tassel Chapter of Mortar Board
One of 38 faculty (out of about 1170) selected for recognition by honors students.

ULL nominee for Council of Graduate School's outstanding biology dissertation (1999)
Selected as ULL's best dissertation in biology (out of 9) over 2-year period.

Inter-individual variation in grasshopper defensive secretion: implications for defense and mate acquisition (1998) National Science Foundation Dissertation Improvement Grant. $5,003.

ULL Graduate Student Award for travel (1996-8) Four awards of $240 each.

University of Louisiana Doctoral Fellowship (1993-1997) $48000. One of two awarded annually.

SERVICE

Member of Institutional Animal Care and Use Committee (2004)
Symposium: Physiology underlying phenotypic plasticity and polyphenisms (2002)
Hosted symposium and associated mini-symposium at annual, national meeting of the Society for Integrative and Comparative Biology
Chair of ISU’s Phi Sigma grant review committee (2000) Oversaw peer review of graduate student grant proposals.

Master’s Thesis Committees
Bryan Krall, M.S. from Illinois State University (1999) Chemical defenses in hemipterans
Brent Salazar, M.S. from Illinois State University (2000) Lepidopteran caterpillar defenses and a survey of projectile defecation and housecleaning
Erik Conrad, M.S. (2005) Transport of metals and amino acids in lobster intestine.Alyson Urian, M.S. (in progress) Green mussel invasion biologyRaime Fronstin, M.S. at Univ. of North Florida (in progress) Population variation in juvenile hormone and juvenile hormone esterase in lubber grasshoppers

SELECTED PRESENTATIONS

Hatle JD (2006) The physiology underlying phenotypic plasticity of reproduction and longevity in grasshoppers. Invited presentation to the Department of Ecology and Evolutionary Biology at Brown University, Providence RI.

Hatle JD, Wells SM, Allen IC, Fuller LE, Melnyk S, Quattrochi J (2006) Calorie restriction enhances longevity without altering hemolymph protein or lipid storage in female grasshoppers. Society for Integrative and Comparative Biology (SICB) and Entomological Society of America (ESA).

Hatle JD (2005) Developmental thresholds, and the physiology underlying phenotypic plasticity, in lubber grasshopper. Invited presentation to the Department of Entomology at the University of Florida, Gainesville.

Hathaway MJ, S Li, X Ding, JD Hatle, DW Borst (2005) Molecular characterization of hemolymph proteins in the lubber grasshopper. Society for Integrative and Comparative Biology (SICB).

Hatle JD, X Ding, TO Barry and DW Borst (2004) Storage protein levels in lubber grasshoppers are not regulated by juvenile hormone. SICB.

Waskey TJ, JD Hatle and SA Juliano (2003) Vitellogenin production rates underlying reproductive plasticity and canalization in the lubber grasshopper. SICB.

Barry TO, TR Martin, H Fei, JD Hatle and DW Borst (2003) The regulation of vitellogenin production in the lubber grasshopper, Romalea microptera. SICB.

Hatle JD (2002) Proteins in plastic and population variation in the timing of egg production in grasshoppers. Invited seminar to the Department of Entomology at the University of Georgia, Illinois Wesleyan University, and Purdue University-North Central.

Lorenz DL, JD Hatle, HD Lewis, MT Golebiowski and DW Borst (2002) Characterization of a major hemolymph protein (MHPb) and its role in the ovarian development of the lubber grasshopper. SICB.

Hatle JD (2001) Physiological ecology of the canalized phase of egg production in grasshoppers. Invited seminar to the Department of Entomology, Univ Illinois.

Hatle JH (2000) Physiological events correlated with the onset of canalized egg production in grasshoppers: results from an undergraduate-centered research program. Symposium honoring the retirement of Russell Rulon, Luther College, Decorah, Iowa.

Knepp MD, JD Hatle and DW Borst (2000) Juvenile hormone degradation in the lubber grasshopper. SICB.

Hatle JD and JH Spring (1998) Malpighian tubule secretion in lubber grasshoppers: comparison of a swamp species and a desert species. Entomological Society of America.

Hatle JD and JH Spring (1997) Sequestration of chemical defenses: is physiological variation ecologically important? Entomological Society of America.

Hatle JD (1996) Acceptability of a chemically defended grasshopper to ranids. American Society of Ichthyologists and Herpetologists.

Hatle JD and JH Spring (1996) Do the Adipokinetic Hormone Precursor Related Peptides have a function? Invited seminar to the Biology Department at Illinois State University.

PROFESSIONAL SOCIETIES

Society for Integrative and Comparative Biology, American Physiological Society, American Aging Association, Entomological Society of America