Ralph Grundel

Biography

Ralph Grundel is a research ecologist with the U.S. Geological Survey, Great Lakes Science Center in Porter, Indiana.  He received his Ph.D. in zoology from The University of Texas at Austin where he studied the foraging ecology of the Mountain Chickadee, a feisty bird that loves high places.  Ralph earned his B.A. in Biology from Wesleyan University and completed postdoctoral training in cell biology at the University of California, Berkeley. Ralph does research on how climate change affects animal and plant populations and on how we might improve conservation and restoration of savannas, a highly threatened habitat present in the Midwest U.S.  His work on savanna restoration emphasizes how animal and plant populations might change as savannas are restored.  This includes examining amphibian, bee, bird, butterfly, reptile, and vascular plant responses to changes in tree density and fire frequency.  Changing tree density through the use of fire is an important way in which savannas are restored so understanding animal and plant responses to that fire management is key to understanding how savanna restoration will proceed.  Ralph also studies the effects of restoration on the Karner blue butterfly, a federally listed endangered species that inhabits oak savannas in the Midwest and Northeast.  He is currently examining how climate change might affect the survival of Karner blues through a series of experiments on captive Karner blues, field studies, and genetic analyses.  In addition to studying how climate change might affect the Karner blue, Ralph also is a lead investigator researching how climate change might affect native bee populations across the National Park system, and how bird communities are responding to landscape and climate changes across the U.S.

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Publications: 

Grundel, R., Frohnapple, K.J., Jean, R.P., Pavlovic, N.B., 2011a. Effectiveness of bowl trapping and netting for inventory of a bee community. Environmental Entomology 40, 374-380.

 

Grundel, R., Jean, R.P., Frohnapple, K.J., Gibbs, J., Glowacki, G.A., Pavlovic, N.B., 2011b. A survey of bees (Hymenoptera: Apoidea) of the Indiana Dunes and Northwest Indiana, USA. Journal of the Kansas Entomological Society 84, 105-138.

 

Pavlovic, N.B., Leicht-Young, S.A., Grundel, R., 2011. Short-term effects of burn season on flowering phenology of savanna plants. Plant Ecology 212, 611-625.

 

Grundel, R., Jean, R.P., Frohnapple, K.J., Glowacki, G.A., Scott, P.E., Pavlovic, N.B., 2010. Floral and nesting resources, habitat structure, and fire influence bee distribution across an open-forest gradient. Ecological Applications 20, 1678-1692.

 

Pavlovic, N.B., Grundel, R., 2009. Reintroduction of wild lupine (Lupinus perennis L.) depends on variation in canopy, vegetation, and litter cover. Restoration Ecology 17, 807-817.

 

Pavlovic, N.B., Leicht-Young, S.A., Frohnapple, K.J., Grundel, R., 2009. Effect of removal of Hesperis matronalis (Dame's Rocket) on species cover of forest understory vegetation in NW Indiana. The American Midland Naturalist 161, 165-176.

 

Pavlovic, N. B. and Ralph Grundel.  2008.  Reintroduction of Wild lupine (Lupinus perennis L.) depends on variation in canopy, vegetation and litter cover. Restoration Ecology.  In press.

 

Grundel, R. and N. B. Pavlovic. 2008. Using conservation value to assess land restoration and management alternatives across a degraded oak savanna landscape. Journal of Applied Ecology 45:315-324.

 

Grundel, R. and N. B. Pavlovic. 2007. Distinctiveness, use, and value of Midwestern oak savannas and woodlands as avian habitats. Auk 124:969–985.

 

Grundel, R. and N. B. Pavlovic. 2007. Resource availability, matrix quality, microclimate, and spatial pattern as predictors of patch use by the Karner blue butterfly. Biological Conservation 135:135-144.

 

Grundel, R. and N. B. Pavlovic. 2007. Response of bird species densities to habitat structure and fire history along a Midwestern open-forest gradient. Condor 109:734-749.

 

Leicht-Young, S. A., N. B. Pavlovic, R. Grundel, and K. J. Frohnapple.  2007.  Distinguishing native (Celastrus scandens L.) and invasive (C. orbiculatus Thunb.) bittersweet species using morphological characteristics. Journal of the Torrey Botanical Society 134: 441-450.

 

Grundel, R., and N. B. Pavlovic. 2007. Distinctiveness, use, and value of Midwestern oak savannas and woodlands as avian habitats. Auk 124:969–985.

 

Grundel, R., and N. B. Pavlovic. 2007. Resource availability, matrix quality, microclimate, and spatial pattern as predictors of patch use by the Karner blue butterfly. Biological Conservation 135:135-144.

 

Wilmore, S. L., G. Glowacki, and R. Grundel. 2005. Assessment of bird populations in a high quality savanna/woodland: a banding approach. Chicago Wilderness Journal 3:5-13.

 

Grundel, R.,  N. B. Pavlovic, and C. L. Sulzman. 2000. Nectar Plant Selection by the Karner Blue Butterfly (Lycaeides melissa samuelis) at the Indiana Dunes National Lakeshore. American Midland Naturalist 144: 1-10.

 

McCallum, D.A., R. Grundel, and D.L. Dahlsten. 1999. Mountain Chickadee (Poecile gambeli). In The Birds of North America, No. 453 (A. Poole and F. Gill, eds.) The Birds of North America, Inc., Philadelphia, PA.

 

Knutson, R.L., J. R. Kwilosz, and R. Grundel, 1999.  Movement patterns and population characteristics of the Karner blue butterfly (Lycaeides melissa samuelis) at Indiana Dunes National Lakeshore.  Natural Areas Journal 19:109-120.

 

Grundel, R. N. B. Pavlovic, and C. L. Sulzman, 1998. The effect of canopy cover and seasonal change on host plant quality for the endangered Karner blue butterfly (Lycaeides melissa samuelis). Oecologia 114: 243-250.

Grundel, R. N. B. Pavlovic, and C. L. Sulzman, 1998.  Habitat use by the endangered Karner blue butterfly in oak woodlands: the influence of canopy cover.  Biological Conservation 85:47-53.

 

Grundel, R.  1992.  How the mountain chickadee procures more food in less time for its nestlings. Behavioral Ecology and Sociobiology 31:291-300.

 

Grundel, R., and H. Rubin. 1992.  Correspondence re: R. Grundel and H. Rubin, Effect of interclonal heterogeneity on the progressive, confluence-mediated acquisition of the focus-forming phenotype in NIH-3T3 populations. Cancer Research 52:1047-1050.

 

Grundel, R., and H. Rubin. 1992.  Adaptation and selection as factors in the spontaneous transformation of NIH-3T3 cells. Carcinogenesis 13:1873-1877.

 

Grundel, R., and H. Rubin. 1991.  The effect of interclonal heterogeneity on the progressive, confluence-mediated acquisition of the focus forming phenotype in NIH 3T3 populations. Cancer Research 51:1003-1013.

 

Grundel, R., and D. L. Dahlsten.  1991.  The feeding ecology of mountain chickadees (Parus gambeli): patterns of arthropod prey delivery to nestling birds. Canadian Journal of Zoology 69:1793-1804.

 

Grundel, R.  1990.  The role of dietary diversity, prey capture sequence and individuality in prey selection by parent mountain chickadees (Parus gambeli). Journal of Animal Ecology 59:959-976.

 

Grundel, R., and H. Rubin.  1988.  Maintenance of multiplication rate stability by cell populations in the face of heterogeneity among individual cells. Journal of Cell Science 91:571-576.

 

Grundel, R.  1987.  Determinants of nestling feeding rates and parental investment in the mountain chickadee. Condor 89:319-328.

 

Lynch, G. R., S. E. White, R. Grundel, and M. S. Berger. 1978. Effects of photoperiod, melatonin administration and thyroid block on spontaneous daily torpor and temperature regulation in the white-footed mouse,Peromyscus leucopus. Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology 125:157-163.