Note: PDF reprints are provided below within the context of fair use. Please obtain copies from the publisher if appropriate.

Selected Publications

Macalady, J. L., Schaperdoth, I., Iliffe, T. M., Fulton, J. M., Freeman, K. H., Kakuk, B. and Broad, K. Chlorobi dominate the shallow chemocline of Sawmill Sink, Bahamas. In preparation.

Macalady, J. L., E. H. Lyon, and L. K. Albertson. Phylogeny and population structure of veil-like microbial mats from the Frasassi cave system, Italy. In preparation.

Jones, D. S., I. Schaperdoth, T. S. Stoffer, K. Dawson, K. H. Freeman, H. Albrecht, and Macalady, J. L. Metagenomic, phylogenetic, and culture-based analysis of subsurface extremophile microbial communities. In preparation.

Jones, D. S., Patel, J., and Macalady, J. L. Continental-scale diversity and biogeography of extremophile cave microorganisms. In review.

Dawson, K., Schaperdoth, I., Freeman, K. H. and Macalady, J. L. Anaerobic biodegradation of the branched hydrocarbon biomarker analog pristane. In review.

Kimball, B. E., Dohnalkova, A. C., Lai, B., Macalady, J. L., Kemner, K. M., and Brantley, S. L. 2009. Bacterially-mediated precipitation of jarosite: implications for copper isotope mobility. In review.

Jones, D. S., Tobler, D., Schaperdoth, I., Galdenzi, S. Mainiero, M., and Macalady, J. L. Dark hot springs: community structure of biofilms from the sulfidic caves of Acquasanta Terme (Italy). In review.

Meyer, K. , Freeman, K. , Macalady, J. L. , Fulton, J., Schaperdoth, I., and Kump, L. Benthic okenone production in Fayetteville Green Lake (NY). In review.

Moore, J., Macalady, J. L., Schulz, M. S., White, A. F., and Brantley, S. L. 2010. Shifting microbial community structure across a marine terrace grassland chronosequence, Santa Cruz, California. Soil Biology and Biochemistry, 42: 21-31, doi:10.1016/j.soilbio.2009.09.015.
(pdf)

Dattagupta, S., Schaperdoth, I., Montanari, A., Mariani, S., N. Kita, J. W. Valley, and Macalady, J. L. 2009. A Recently Evolved Symbiosis Between Chemoautotrophic Bacteria and a Cave-dwelling Amphipod. ISME Journal 3: 935-943.
pdf (supplementary)

Macalady, J. L. , S. Dattagupta, I. Schaperdoth, D. S. Jones, G. K. Druschel, D. Eastman. 2008. Niche differentiation among sulfur-oxidizing bacterial populations in cave waters. ISME Journal 2: 590-601.
pdf

Strapoc D., F. Picardal, C. Turich, I. Schaperdoth, J. L. Macalady, J. Lipp, Y.-S. Lin, T. Mohr, F. Schuboltz, K.-U. Hinrichs, M. Mastalerz, A. Schimmelmann. 2008. Coalbed methane-producing microbial community in the Illinois Basin. Applied and Environmental Microbiology 74(8):2424-2432.
pdf

Ewing, S. A., McKay, C. P., Warren-Rhodes, K., Macalady, J. L. , and Amundson, R. 2008. Climate legacy and biogeochemical transformation: Isotopic trends in soil organic carbon at the arid-hyperarid transition in the Atacama Desert. Journal of Geophysical Research 113, G02S90, doi:10.1029/2007JG000495.

Jones, D. S., Lyon, E. H., and Macalady, J. L. 2008. Geomicrobiology of sulfidic cave biovermiculations. Journal of Cave and Karst Studies 70(2):78-93.
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Ewing, S. A., Michalski, G., Thiemens, M. H., Quinn, R. C. , Macalady, J. L., Kohl, S., Wankel, S. D. , Kendall, C., McKay, C. P., and Amundson, R. 2007. The Rainfall Limit of the Nitrogen Cycle on Earth. Global Biogeochemical Cycles, 21:GB3009, doi:10.1029/2006GB002838.
pdf

Macalady, J. L. , D. S. Jones, and E. H. Lyon. 2007. Extremely acidic, pendulous microbial biofilms from the Frasassi cave system, Italy. Environmental Microbiology, 9(6): 1402-1414.
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Ewing, S. A., R. J. Southard, J. L. Macalady , A. S. Hartshorn and M. J. Johnson. 2006. Localization of soil microbial community fingerprints, carbon, and nitrogen in a Mojave Desert creosote bush ecosystem. Soil Science Society of America Journal 71(2):469-475.
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Macalady, J. L., Lyon, E.H., Koffman, B., Albertson, L. K., Meyer, K., Galdenzi, S. and Mariani, S. 2006. Dominant microbial populations in limestone-corroding stream biofilms, Frasassi cave system, Italy. Applied and Environmental Microbiology 72(8):5596-5609.
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Hose, L.D. and Macalady, J. L. 2006. Observations from active sulfidic karst systems: Is the present the key to understanding Guadalupe Mountain speleogenesis? New Mexico Geological Society Guidebook, 57th Field Conference, Caves and Karst of Southeastern New Mexico.
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Lyon E., Koffman B., Meyer K., Cleaveland L., Mariani S., Galdenzi S., and J. L. Macalady . 2004. Geomicrobiology of the Frasassi Caves. In Frasassi 1989-2004: Gli sviluppi nella ricerca (S. Galdenzi, ed.), pp. 152-157.

Macalady, J. L. , M. M. Vestling, D. Baumler, N. Boekelheide, C.W. Kaspar, and J. F. Banfield. 2004. Membrane monolayers in Ferroplasma spp.: a key to survival in acid. Extremophiles 8(5):411-419.
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Macalady, J. L. , and J. F. Banfield. 2003. Molecular geomicrobiology: genes and geochemical cycling [invited Frontiers review ]. Earth and Planetary Science Letters 209 (1-2): 1-17.
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A. M. Costello, A. J. Auman, J. L. Macalady , K. M. Scow, and M. E. Lidstrom. 2002. Estimation of Methanotroph Abundance in a Freshwater Lake Sediment. Environmental Microbiology 4(8): 443-450.
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Macalady, J. L. , A. M. S. McMillan, A. F. Dickens, S. C. Tyler and K. M. Scow. 2002. Population dynamics of Type I and II methanotrophic bacteria in rice soils. Environmental Microbiology 4(3):148-157.
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Macalady, J. L. , E.E. Mack, D.C. Nelson and K.M. Scow. 2000. Sediment microbial community structure and mercury methylation in mercury-polluted Clear Lake, CA. Applied and Environmental Microbiology 66 (4):1479-1488.
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Scow, K. M., E. Schwartz, M.J. Johnson and J. L. Macalady . 2000. Measurement of microbial biodiversity, In Encyclopedia of Biodiversity, Levin, S. A. (Sr. ed.), Academic Press, Inc.

Hanson, J.R., J. L. Macalady , D. Harris and K.M. Scow. 1999. Linking toluene degradation with specific microbial populations in soil. Applied and Environmental Microbiology 65 (12):5403-5408.
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Macalady, J. L. , M.E. Fuller and K.M. Scow. 1998. Effects of metam sodium fumigation on soil microbial activity and community structure. Journal of Environmental Quality 27:54-63.


Outreach and Press


Behind the Scenes: Caves Reveal Evolution of Ancient Microbes (Livescience.com, May 2009)

Stigobionti (2010)
Cave biology text featuring cover image (FISH micrograph) and geomicrobiology content authored by members of the Macalady Lab. The text will be distributed to schools throughout the Marche Region, Italy.

Unusual microbial ropes grow slowly in cave lake (Dec. 2008, ScienceDaily.com)

MicrobeWorld Radio (podcast September 8, 2008)

ASM's "Small Things Considered", In a Cavern, In a Canyon... (Jan. 2007)

Snot-like microbes help carve caves (2007, LiveScience.com)

report on Defining Life's Limits ACS session (Spring 2004)

"H2S Caves in Central Italy", NSS News report by Louise Hose (Dec. 2005)
[used with permission of the National Speleological Society (www.caves.org)]
Louise Hose is the former Director of the National Cave and Karst Research Institute (www. nckri.org)