Brooke Crowley

Brooke E Crowley

Associate Professor, Geology Graduate Director, Stable Isotope Ecology, Quaternary Paleoecology

Geology-Physics Building


A&S Geology - 0013

Professional Summary

I use stable isotope biogeochemistry to answer a variety of questions about modern and extinct vertebrate communities. My main research interests include extinction, environmental and ecological consequences of human impacts, habitat transformation and conservation. Please visit my personal website for more information ( 


Ph.D., UC Santa Cruz 2009 (Ecology and Evolutionary Biology)

M.A., UC Santa Cruz 2008 (Biological Anthropology)

M.S., UC Santa Cruz 2005 (Earth Sciences)

B.A., Vassar College 2002 (Geology)

Research Support

Grant: #BCS-1749676 Investigators:Crowley, Brooke 03-01-2018 -02-28-2021 National Science Foundation Collaborative Research: Flooded caves and fossil lemur graveyards in southwestern Madagascar (UMASS is collaborator) Role:PI $24,706.00 Active Level:Federal

Grant: #ORAU 2013 Investigators:Crowley, Brooke 06-01-2013 -05-31-2014 Oak Ridge Associated Universities Investigating Potential Heavy Metal Contamination in Soils, Plants and People Role:PI $5,000.00 Awarded Level:Private Non-Profit

Grant: #URC Faculty 2012-13 Investigators:Crowley, Brooke 01-22-2013 -01-21-2014 UC's University Research Council Assessing vehicle related pollution along the Manali-Leh Highway, Indian Himalaya Role:PI $6,500.00 Active Level:Internal UC

Grant: #L-10781 Investigators:Crowley, Brooke 12-19-2012 -12-18-2017 Lawrence Livermore National Laboratory Work for Others L10781 Role:PI $.00 Active Level:Federal

Grant: #EAR-1229114 Investigators:Algeo, Thomas; Crowley, Brooke; Diefendorf, Aaron; Townsend-Small, Amy 09-15-2012 -08-31-2015 National Science Foundation Acquisition of Stable Isotope Instrumentation for Biogeochemistry Research and Teaching at the University of Cincinnati Role:Collaborator $400,000.00 Active Level:Federal

Grant: #OBR 990 Investigators:Algeo, Thomas; Crowley, Brooke; Diefendorf, Aaron; Townsend-Small, Amy 07-01-2012 -06-30-2014 Ohio Board of Regents Acquisition of Stable Isotope Instrumentation for Biogeochemistry Research and Teaching at the University of Cincinnati Role:Collaborator $85,714.00 Active Level:State of Ohio


Peer Reviewed Publications

Vrazo, M.B., Diefendorf, A.F., Crowley, B.E., Czaja, A.D. (2018. )Late Cretaceous marine arthropods relied on terrestrial organic matter as a food source: geochemical evidence from the Coon Creek Lagerstätte in the Mississippian Embayment .Geobiology, ,16 ,160-178.

Crowley, B.E., Godfrey, L.R., Bankoff, R.J., Perry, G.H., Culleton, B.J., Kennett, D.J., Sutherland, M.R, Samonds, K.E., and Burney, D.A. (2017. )Island-wide aridity did not trigger recent megafaunal extinctions in Madagascar.Ecography, ,40 ,901-912.

Muldoon, K.M., Godfrey, L.R., Crowley, B.E., and Simons, E.L. (2017. )Prolemur simus: did predation contribute to the demise of this once widespread species?.International Journal of Primatology, ,38 (1 ),58-79.

Crowley BE, Miller JH, Bataille CP (2017. )trontium isotopes (87Sr/86Sr) in terrestrial ecological and palaeoecological research: empirical efforts and recent advances in continental-scale models.Biological Reviews, ,92 ,43-59.

Godfrey, L.R., Crowley, B.E., Muldoon, K.M., Kelley, E.A., King, S.J., Best, A.W., and Berthaume, M. (2016. )What did Hadropithecus eat, and why should paleoanthropologists care? .American Journal of Primatology, ,78 ,1098 -1112

Godfrey, L.R., and Crowley, B.E. (2016. )Madagascar’s ephemeral paleo-grazer guild: Who ate the ancient grasses? .Proceedings of the Royal Society B, ,283 ,20160360

Crowley, B.E., Reitsema, L., Oelze, V.M., and Sponheimer M. (2016. )Advances in primate stable isotope ecology – achievements and future prospects .American Journal of Primatology, ,78 ,995 -1003

Carlson, B.A. and Crowley, B.E. (2016. )Comparative δ13C variation in chimpanzee dietary ecology at Ngogo and Bwindi Impenetrable National Park, Uganda .American Journal of Primatology, ,78 ,1031 -1040

Gnezdilova, V.V., Ruban, D.A., Bruno, D.E., Perrotta, P., Crowley, B.E., Oheim, K.B., Zayats, P.P. (2015. )Geoheritage sites with palaeogeographical value: some geotourism perspectives with examples from Mountainous Adygeja (Russia) .Annales Géologiques de la Péninsule Balkanique, ,76 ,93-104

Baumann, E., and Crowley, B.E. (2015. )Stable isotopes reveal ecological differences amongst now-extinct proboscideans from the Cincinnati region, USA .Boreas, ,44 (1 ),240-254.

Kistler, L., Ratan, A., Godfrey, L.R., Crowley, B.E., Hughes, C.E., Lei, R., Cui, Y., Wood, M.L., Muldoon, K.M., Andriamialison, H., McGraw, J.J., Tomsho, L.P., Schuster, S.C.,Miller, W., Louis, E.E., Yoder, AD., Mahli, R.S., Perry, G.H. (2015. )Comparative and population mitogenomic analyses of Madagascar's extinct, giant ‘subfossil’ lemurs .Journal of Human Evolution, ,79 ,45-54

Tankersley, K.B., Murari, M., Crowley, B.E., Owen, L.A., Storrs, G.W., and Mortensen, L. (2015. )Quaternary chronostratigraphy and stable isotope paleoecology of Big Bone Lick, Kentucky, USA .Quaternary Research, ,83 (3 ),479-487

Crowley, B.E., Melin, A.D.,Yeakel, J.D., Dominy, N.J. (2015. )Do oxygen isotope values in collagen reflect the ecology and physiology of neotropical mammals?.Frontiers in Ecology and Evolution, ,3 ,127

Crowley, B.E., and Wheatley, P.V. (2014. )To bleach or not to bleach? Comparing treatment methods for isolating biogenic carbonate .Chemical Geology, ,381 ,234-242.

Melin A. D., Crowley B. E., Brown S. T., Wheatley P. V., Moritz G. L., Tuh Yit Yu F., Bernard H., DePaolo D. J., Jacobson A. D., and Dominy N. J. (2014. )Calcium and carbon stable isotope ratios as paleodietary indicators .American Journal of Physical Anthropology, ,154 (4 ),633-643

Pestle, W.J., Crowley, B.E., and Weirauch, M.T. (2014. )Quantifying inter-laboratory variability in stable isotope analysis of ancient skeletal remains .PLoS ONE, ,9 (7 ),e102844

Bruno, D.E., Crowley, B.E., Gutak, J.M., Moroni, A., Nazarenko, O.V., Oheim, K.B., Ruban, D.A., Tiess, G., and Zorina, S.O. (2014. )Paleogeography as geological heritage: developing geosite classification .Earth-Science Reviews, ,138 ,300-312.

Crowley B. E., Rasoazanabary E., and Godfrey L. R (2014. )Stable isotopes complement focal individual observations and confirm dietary variability in reddish-gray mouse lemurs (Microcebus griseorufus) from southwestern Madagascar .American Journal of Physical Anthropology, ,155 (1 ),77-90.

Crowley, B.E., Blanco, M.B., Arrigo-Nelson, S.J., and Irwin, M.T. (2013. )Stable isotopes document resource partitioning and differential response to forest disturbance in sympatric cheirogaleid lemurs .Naturwissenschaften, ,100 (10 ),943-956.

Crowley, B.E., Samonds, K.E. (2013. )Stable isotopes confirm a recent increase in grasslands in Northwestern Madagascar .The Holocene, ,23 ,1066-1073

Crowley, B.E., and Godfrey, L.R (2013. )Why all those spines? Anachronistic defenses in the Didiereoideae against extinct lemurs .South African Journal of Science, ,109 ,70-76

Muldoon, K.M., Crowley, B.E., Godfrey, L.R., Rasoamiaramanana, A., Aronson, A., Jernvall, J., Wright, P.C., and Simons, E.L. (2012. )Early Holocene fauna from a new subfossil site: A preliminary report from Christmas River, South central Madagascar .Madagascar Conservation and Development, ,7: (1 ),23-29.

Crowley, B.E., McGoogan, K., Lehman, S.M. (2012. )Edge effects on foliar stable isotope values in a Madagascan tropical dry forest .PLoS ONE, , ,

Crowley, B.E., Godfrey, L.R., Guilderson, T.P., Koch, P.L., and Dominy, N.J. (2012. )Extinction and ecological retreat in a community of primates .Proceedings of the Royal Society of London B, ,2279 ,3597-3605

Crowley, B.E. (2012. )Stable isotope techniques and applications for primatologists .International Journal of Primatology, ,33: ,673-701.

Vogel, E.R., Knott, C.D., Crowley, B.E., Blakely, M.D., Larsen, M.D., and Dominy, N.J. (2012. )Bornean orangutans at the brink of protein bankruptcy .Biology Letters, ,8: ,333-336.

Vogel, E.R., Crowley, B.E., Knott, C.D., Blakely, M.D., and Dominy, N.J. (2012. )Non-invasive method for quantifying nitrogen balance in free-ranging primates .International Journal of Primatology, ,33: ,567-587.

Crowley, B.E., Thorén, S., Rasoazanabary, Vogel, E.R., E., Barrett, M.A., Zohdy, S., Blanco, B.B., McGoogan, K., Arrigo-Nelson, S., Irwin, M.T., Wright, P.C., Radespiel, U., Godfrey, L.R., Koch, P.L., and Dominy, N.J. (2011. )Explaining geographical variation in the isotope composition of mouse lemurs (Microcebus) .Journal of Biogeography, ,38: ,2106-2121.

Crowley, B.E. (2011. )Extinction and rediscovery: where the wild things are .Journal of Biogeography, ,38: ,1633-1634.

Crowley, B.E., Godfrey, L.R., and Irwin, M.T. (2011. )A glance to the past: Subfossils, stable isotopes, seed dispersal, and species loss in southern Madagascar .American Journal of Primatology, ,73: ,25-37

Godfrey, L.R., Crowley, B.E., Dumont, E. (2011. )Thinking outside the box: A lemur's take on hominin craniodental evolution .Proceedings of the National Academy of Sciences, ,108: (38 ),E742.

Crowley, B.E. (2010. )A refined chronology of prehistoric Madagascar and the demise of the megafauna; new clues from old bones .Quaternary Science Reviews, ,29: ,2592-2604.

Crowley, B.E., Carter, M.L., Karpanty, S.M., Zihlman, A.L., Koch, P.L., and Dominy, N.J. (2010. )Stable carbon and nitrogen isotope enrichment in primate tissues .Oecologia, ,164: ,611-626.

Samonds, K.E., Parent, S.N., Muldoon, K.M., Crowley, B.E., and Godfrey, L.R. (2010. )Rock matrix surrounding subfossil lemur skull yields diverse collection of mammalian subfossils: Implications for reconstructing Madagascar’s paleoenvironments .Malagasy Nature, ,4: ,1-16.

Crowley, B.E., Koch, P.L., and Davis, E.B. (2008. )Tracing the isotopic rain shadow and elevation history of the Sierra Nevada Mountains, California .GSA Bulletin, ,120: ,588-598.

Sparks, J.M., Crowley, B.E. (2018. )Where did people forage in prehistoric Trinidad? Testing the utility of a multi-isotope approach for tracking the origins of terrestrial prey.Journal of Archaeological Science Reports, ,19 ,968-978

Cooke, S.B., and Crowley, B.E. (2018. )Deciphering the isotopic niches of now-extinct Hispaniolan rodents .Journal of Vertebrate Paleontology, ,38 (5 ),e1510414

Crowley, B.E., Castro, I., Goodman, S.M., and Soarimalala, V. (2018. )Isotopic evidence for niche partitioning and the influence of anthropogenic forest loss and disturbance on the diet and mobility of endemic and introduced rodents in the Central Highlands of Madagascar .Naturwissenschaften, ,105 (44 ),

McCool, J-P.P., Fladd, S.G., Scarborough, V.L., Plog, S., Dunning, N.P., Owen, L.A., Watson, A.S., Bishop, K.J., Crowley, B.E., Haussner, E.A., Tankersley, K.B., Lentz, D., Carr, C., and Thress, J.L. (2018. )Soil salinity in discussions of agricultural feasibility for ancient civilizations: A critical review and reanalysis of the data and debate from Chaco Canyon, New Mexico .PLoS ONE, ,13 (6 ),p.e0198290

Scarborough, V.L., Fladd, S.G., Dunning, N.P., Plog, S., Owen, L.A., Carr, C., Tankersley, K.B., McCool, J-P., Watson, A.S., Haussner, E.A., Crowley, B.E., Bishop, K.J., Lentz, D.L., and Vivian, G. (2018. )Water Uncertainty and Ritual Predictability at Chaco Canyon, New Mexico .Antiquity, ,92 (364 ),870-889.

Craine, J., Elmore, A.J., Aranibar, J., Bauters, M., Pascal Boeckx, P., Crowley, B.E., Dawes, M.A., Delzon, S., Fajardo, A., Fang, Y., Fujiyoshi, L., Gray, A., Guerrieri, R., Gundale, M.J., Hawke, D.J., Hietz, P., Jonard, M., Kearsley, E., Kenzo, T., Makarov, M., Marañón-Jiménez, S., McGlynn, T.P., McNeil, B.E., Mosher, S.G., Nelson, D.M., Peri, P.L., Roggy, J.C., Sanders-DeMott, R., Song, M., Szpak, P., H. Templer, P.H., Van der Colff, D., Wang, L., Werner, C., Xu, X., Yang, Y., Yu, G., Zmudczyńska-Skarbek, K (2018. )Isotopic evidence for oligotrophication of terrestrial ecosystems .Nature Ecology and Evolution, ,2 ,1735-1744

Samonds, K.E., Crowley, B.E., Rasolofomanana, T.R.N., Andriambelomanana, M.C., Andrianavalona, H.T., Ramihangihajason, T.N., Rakotozandry, R., Nomenjanahary, Z.B., Irwin, M.T., Wells, N.A., and Godfrey, L.R. A new late Pleistocene subfossil site (Tsaramody, Sambaina basin, central Madagascar) with implications for the chronology of habitat and megafaunal community change on Madagascar’s central plateau .Journal of Quaternary Science, ,

Wallace, J.P. Crowley, B.E., and Miller, J.H. (2019. )Investigating equid mobility in Miocene Florida, USA using strontium isotope ratios .Palaeogeography, Palaeoclimatology, Palaeoecology, ,516 ,232-243

Godfrey, L.R., Scroxton, N., Crowley, B.E., Burns, S., Sutherland, M., Pérez, V., Faina, P., McGee. D., and Ranivoharimanana, L. (2019. )A new interpretation of Madagascar’s megafaunal decline: the “Subsistence Shift Hypothesis” .Journal of Human Evolution, ,130 ,126-140

Hixon, S.W., Elliott Smith, E.A., Crowley, B.E., Perry, G.H., Kennett, D.J., and Newsome, S.D. (2018. )Patterns in amino acid δ15N values of lemurs are inconsistent with aridity driving megafaunal extinction in Southwestern Madagascar .Journal of Quaternary Science, ,33 (8 ),958-968

Crowley, B.E., Wultsch, C., and Kelly, M.J. Assessing the viability of isotopes in faecal matter for non-invasively tracking jaguar landscape use .Isotopes in Environmental & Health Studies, ,

Sparks, J.A., Crowley, B.E., Rutherford, M.G., and Jaggernauth, D. (2019. )Coastal proximity, orientation, and precipitation amount drive spatial variability in δ34S values on the Caribbean island of Trinidad .Journal of Applied Chemistry , ,108 ,104372

Crowley, B.E., Yanes, Y., Mosher, S.G., and Rando, J.C. (2019. )Revisiting the foraging ecology and extinction history of two endemic vertebrates from Tenerife, Canary Islands .Quaternary, ,2 (10 ),doi:10.3390/quat2010010

Mosher, S.G., Crowley, B.E., Yanes, Y., Diefendorf, A.F., and Barone, R. Characterizing spatial variability in foliar carbon and nitrogen isotopes on Tenerife, Canary Islands .Acta Oecologia, ,

Crowley, B.E., and Ehmke, E.E. Captive dwarf lemurs and mouse lemurs have variable fur growth .American Journal of Physical Anthropology, ,

Douglass, K., Hixon, S., Wright, H., Wright, H.T., Godfrey, L., Crowley, B., Manjakahery, B., Rasolondrainy, T., Crossland, Z., and Radimilahy, C. A critical review of radiocarbon dates clarifies the human settlement of Madagascar .Quaternary Science Reviews, ,

Other Publications

The CenTREAD Working Group (2005. )Farmers and the Forest: Can Agroforestry Actually Conserve Biodiversity? .Conservation Biology, 19 ,2043 -2044

Book Chapter

Heck, L., † Crowley, B., Thorén, S., and Radespiel, U. (2016 )Determinants of isotopic variation in two mouse lemur species from northwestern Madagascar Dwarf and Mouse Lemurs of Madagascar: Biology, Behavior and Conservation Biogeography of the Cheirogaleidae .(pp. 281-304).Cambridge University Press series, Studies in Biological and Evolutionary Anthropology

Crowley, B.E., and Godfrey, L.R. (2013 )Isotopic variability and lemur diet in a dry Malagasy forest: A cautionary tale Leaping Ahead: Advances in Prosimian Biology .(pp. 173-182).New York,Springer

Crowley, B.E., and Sparks, J.A. Geology Revue Des Aires Protégées de Madagascar/Review of Madagascar's Protected Areas .Antananarivo & Chicago,Association Vahatra & The University of Chicago Press

Sponheimer, M., and Crowley, B.E. Evaluating primate diets with stable isotopes Primate Diet & Nutrition .Chicago,University of Chicago Press

Encyclopedia Article

Crowley, B.E. (2017. )The International Encyclopedia of Primatology .Entry 314Wiley-Blackwell

Additional Publications

Positions and Work Experience

2017 - Associate Professor, Department of Geology, University of Cincinnati,

2017 - Associate Professor, Department of Anthropology, University of Cincinnati,

2011 -2017 Assistant Professor, Department of Geology, University of Cincinnati,

2011 -2017 Assistant Professor, Department of Anthropology, University of Cincinnati,

2010 -2011 Lecturer, Department of Anthropology, University of Toronto,

2010 -2011 Research Fellow, Department of Earth and Planetary Sciences, UC Santa Cruz,

2009 -2010 Postdoctoral Fellow, Department of Anthropology, University of Toronto,

2009 - Apprentice, Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, CA

2005 -2005 Intern, School for Field Studies, Centre for Marine Resource Management, Turks and Caicos

2003 -2005 Science Fellow, Center for Informal Learning and Schools, UC Santa Cruz

2003 -2008 Teaching Assistant, UC Santa Cruz,

2018 - Graduate Director, Department of Geology, University of Cincinnati,

Professional Affiliation

2013: ISOMASS EA-IRMS, MS-IRMS, and GC-IRMS Isotope Ratio Mass Spectrometry Training Workshops University of Ottawa,

2006: Stable Isotopes in Ecology Short Course University of Utah

2003: Field Camp, Department of Earth Sciences, UC Santa Cruz,

2002: German Study Abroad Program, Vassar College,, Münster, Deutschland

2000: School for Field Studies Tropical Rainforest Management, Queensland, Australia

2000: Undergraduate Research Summer Internship, Vassar College,

1999 -2001: Research Assistant Institute of Arctic and Alpine Research, University of Colorado, Boulder

American Association of Physical Anthropologists,

Biogeosphere-Atmosphere Stable Isotope Network,

Phi Beta Kappa, Mu Chapter,

Professional Association of Diving Instructors (PADI),

Sigma Xi,

Courses Taught