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Research Activities
Among current research interests are problems in mathmatical ecology, including modeling insect ecophysiology
(structured population models, energy budgets, control of digestion processes, nutrient cycling, predation,
and ecological stochiometry), and the temperature effects of global climate change on predator-prey interactions.
See complete publication list (in vita).
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Male Red-veined Darter Dragonfly
click to enlarge
Male Red-veined darter dragonfly (Sympetrum fonscolombii)
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Selected Publications in Theoretical Ecology
Note: the PDF files listed below are preprints or reprints.
- J. D. Logan, A. Joern, & W. Wolesensky, 2002. Time, location, and temperature dependence of digestion in simple animal tracts,
Journal of Theoretical Biology 216, 5-18. PDF
- J. D. Logan, A. Joern, & W. Wolesensky, 2003. Chemical reactor models of optimal digestion efficiency with constant foraging costs,
Ecological Modelling 168, 25-38. PDF
- J. D. Logan, A. Joern, & W. Wolesensky, 2004. Control of CNP homeostasis in herbivore consumers through
differential assimilation, Bulletin of Mathematical Biology 66(4), 707-725. PDF
- G. Ledder, J. D. Logan, & A. Joern, 2004. Dynamic energy budget models with size-dependent hazard rates,
Journal of Mathematical Biology 48(6), 605-622. PDF
- W. Wolesensky, A. Joern, & J. D. Logan, 2005. A model of digestion modulation in grasshoppers,
Ecological Modelling, 188, 358-373. PDF
- J. D. Logan, W. Wolesensky & A. Joern, 2006. Temperature-dependent phenology and predation
in arthropod systems, Ecological Modelling 196, 471-482. PDF
- J. D. Logan, W. Wolesensky, & A. Joern, 2007. Insect development under predation risk, variable temperature, and variable
food quality, Mathematical Biosciences & Engineering 4(1), 47-65. PDF
- J. D. Logan & W. Wolesensky, 2007, An index to measure the effects of temperature change on trophic
interactions, Journal of Theoretical Biology 246, 366-376. PDF
- J. D. Logan & W. Wolesensky, 2007. Accounting for temperature in predator functional responses,
Natural Resource Modeling 20(4), 549-574. PDF
- J. D. Logan, 2008. Phenologically-structured predator-prey dynamics
with temperature dependence, Bulletin of Mathematical Biology 70(1), 1-20. PDF
- J. D. Logan, G. Ledder & W. Wolesensky, 2009. Holling type II functional response for continuous,
physiologicall structured models. Journal of Theoretical Biology 259, 373-381.
PDF
- A. Parrott & J. D. Logan, 2010. Effects of temperature variation on TSD in turtle (C. picta) populations,
Ecological Modelling 221, 1378-1393. PDF
- J. D. Logan, J. Janovy, Jr., & B. E. Bunker, 2012. The life cycle and fitness domain of gregarine
(Apicomplexa) parasites , Ecological Modelling 233, pp, 31-40. PDF
- B. E. Bunker, J. Janovy, Jr., E. Tracy, A. Barnes, A. Duba, M. Shuman,& J. D. Logan, 2013. Macroparasite population
dynamics among geographical localities and host life cycle stages: Eugregarines in Ischnura Verticalis,, Journal of
Parasitology 99(3): 403-409. PDF
Lycosid with an egg-sac
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