Faculty Emeriti

Faculty Emeriti

H. Dieter Steklis

Steklis gorilla 2012

H. Dieter Steklis, Ph.D., is a Professor in the School of Animal and Comparative Biomedical Sciences at the University of Arizona, with an affiliated faculty appointment in Psychology, Program in Ethology and Evolutionary Psychology. Dr. Steklis’ present research—much of it done in collaboration with his wife and University of Arizona faculty colleague Netzin Steklis, Ph.D.—concerns female mountain gorilla life history, the evolutionary psychology of human-animal relationships, evaluating the effectiveness of therapy dog visits for improving human health and wellness, and charting the evolution and adaptive function of emotional awareness in humans and other animals. Dieter and Netzin Steklis co-direct the Human-Animal Interaction Research Initiative (HAIRI), and co-lead a summer Primate Studies Field School (administered by the U of A Office of Study Abroad) in Rwanda, Africa.

Dieter Steklis earned his Ph.D. in Anthropology in 1974 from the University of California, Berkeley. That year, he joined Rutgers University as an Assistant Professor, retiring in 2004 as Professor Emeritus of Primatology. From 2005-2016, he taught at the University of Arizona South, primarily in Psychology, and served in several administrative leadership positions (Associate Dean, Division Chair) before moving to his present faculty position in the School of Animal and Comparative Biomedical Sciences.

In addition to his academic career, Steklis has held several leadership positions in the private not-for-profit sector, including serving in science and conservation leadership positions with the Dian Fossey Gorilla Fund International (link is external). His relationship with the Fossey Fund began in 1991, when he was appointed director of the Karisoke Research Center in Rwanda (1991-1993). Subsequently, he served as the fund’s Executive Director (1993-1995), and as Chief Scientist and Vice-President (1995-2005). His many years of collaborative research with his wife on mountain gorilla behavior and conservation has been featured in scholarly journals and books, national and international magazines, radio programs, and numerous television broadcasts (including National Geographic). In recognition of their collaborative conservation work, in 2002, he and his wife received the Explorers Club “Champions of Wildlife Award”.

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Select Recent Publications:

Books and Book Chapters

Steklis, H.D. and Lane, R.D. The unique human capacity for emotional awareness: Psychological, neuroanatomical, comparative and evolutionary perspectives. In: Emotions in Animals and Humans: Comparative Perspectives. S. Watanabe and S. Kuczaj ed., pp. 165-205. Tokyo: Springer. 2013.

Steklis, H.D. The changing nature of human nature. In: M. Egan (ed.) The Character of Human Institutions. Pp. 307-328. New Brunswick, New Jersey: Transaction Pubs. 2014.

Steklis, H. D. and Steklis, N. G. (eds.) Men, Fatherhood and Families. First Edition. San Diego, CA: Cognella Academic Publishing. 2015.

Steklis, H.D. and Steklis, N.G. Human-Animal Interrelationships. First Edition. Dubuque, Iowa: Kendall-Hunt Publishing Company. 2017.

Schaefer, S. A. and Steklis, H.D. Personality and Subjective Well-Being in Captive Male Western Lowland Gorillas Living in Bachelor Groups. American J. of Primatology 76(9):879-889, 2014.

Research Articles

Eckhardt, W., Steklis, H.D., Steklis, N., Weiss, A., Fletcher, A., and Stoinski, T. Personality Dimensions and Their Behavioral Correlates in Wild Virunga Mountain Gorillas (Gorilla beringei beringei). Journal of Comparative Psychology Dec 22: 1-16, 2014.

Erdman, P., LaFollette, M.R., Steklis, N.G., Steklis, H.D., Germone, M.M., and Kogan, L. (in press). Guide to Human-Animal Interaction Education. Human Animal Interaction Bulletin.

John W. K. Harris

Academic biography

jack harris portraitJack Harris is a Professor in the Department of Anthropology studying the earliest stages of human origins. In particular, he studies the time interval 2.5 million to 1.5 million that sees the earliest evidence for stone tool manufacture and use, the incorporation of meat into the diet, the emergence of the genus Homo and the ranging patterns of our earliest ancestors to Eurasia. More recently, he has begun work with some of the world’s most distinguished Primatologists. He has initiated collaborative inter-disciplinary studies of the behaviors of modern chimps and monkeys, particularly their use of stone tools in foraging and food sourcing as models for the behaviors of our earliest stone tool using hominid ancestors. Harris focuses his research on the African Continent and is a research associate at the National Museums of Kenya. He coordinates three international anthropology field schools under Rutgers Study Abroad in Kenya (in paleoanthropology, Primatology, and Swahili studies) which provide opportunities for internships at the National Museums of Kenya. Dr. Harris has over 125 publications including numerous co-authored publications in Science, Nature and more recently the Proceedings of the National Academy of Science. Dr. Harris’ research has been supported by numerous sources including the National Science Foundation, Leakey Foundation, and the Wenner-Gren Foundation for Anthropological Research.

Read more: John W. K. Harris

Robin Fox

fox(PhD, U London, 1965; Univ Prof)

Kinship and marriage, evolution of behavior, social theory;

N Amer, northwestern Europe

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Gail Ashley

Gail Ashley doing  fieldwork

Distinguished Professor, Geology

Research Interests
My research focuses on the geological record of the paleo environment, paleo climate and climate change in East Africa during last few million years. My particular interests are water resources available to hominins, Homo habilis, Paranthropus boisei and Homo erectus (Olduvai Gorge) and Holocene-age hunter-gatherers (Lake Turkana) and modern hunter-gatherers (Hazabe) at Lake Eyasi. I have been working in Tanzania and Kenya for over 25 years studying the sedimentary record of rivers, lakes, wetlands and springs associated with archaeological sites, as well as modern their analogs.

Current Projects
I am member of TOPPP (The Olduvai Paleontological and Paleoecology Project) www.olduvaiproject.org where I focus on the paleo groundwater records of springs and wetlands, paleosols and playa lakes. I collaborate with paleobotanist Doris Barboni (CEREGE, FR) and organic geochemist Clayton Magill (Heriot- Watt, UK).

I collaborate with sedimentary geochemist Daniel Deocampo (Georgia State Univ.) on a NSF-funded project (ACACIA) using clay mineral composition to track paleoclimate change in East Africa, specifically aridity cycles.

I am working with hydrogeologist and modeler Mark Cuthbert (Cardiff, UK) studying the modern surface and groundwater hydrology in the volcanic Highlands, Ngorongoro Conservation Area. We are using modern systems as an analog for the paleo springs and wetlands associated with archaeological sites.

Selected Publications
2017, Ashley, G.M., Ndiema, E.K., Spencer, J.Q.G., Harris, J.W.K., Kiura, P.W., Dibble, Du, A., Lordan, P.T., Paleoenvironmental reconstruction of Dongodien, Lake Turkana, Kenya and OSL dating of site occupation during Late Holocene climate change. African Archaeology Review, DOI 10.1007/s10437-017-9260-4

2017 Arráiz H., Barboni D., Ashley G.M., Uribelarrea D., Mabulla A, Baquedano E., Domínguez-Rodrigo M.. The FLK Zinj paleolandscape: reconstruction of a 1.84 Ma wooded habitat in the FLK Zinj-AMK-PTK-DS archaeological complex, Middle Bed I (Olduvai Gorge, Tanzania). Paleoecology, Paleogeography, Paleoclimatology, Olduvai Gorge Paleoecology-Special Issue doi: 10.1016\J.Palaeo.2017.02.036

2017, M.O. Cuthbert, T. Gleeson, S.C. Reynolds, M.R. Bennett, A.C. Newton, C.J. McCormack & G.M. Ashley, Modelling the role of groundwater hydro-refugia in East African hominin evolution and dispersal, Nature Communications 8:15696 |doi. 10.1038/ncomms15696: 696

2017, Deocampo, D.M., Berry, P.A., Beverly, E.J., Ashley, G.M., Jarrett, R.E., Precessional climate control in East Africa ~1.95-1.75 million years ago, Olduvai Gorge, Tanzania: a geochemical record of lacustrine authigenic clays. GEOLOGY, 45(8), 683-686. doi:10.1130/G38950.1

2017, Goman, M., Ashley, G.M., Owen, R.B., Hover, V.C., Maharjan, D. K., Late Holocene envir-onmental reconstruction from groundwater-fed wetlands of Lake Solai, Kenya. The Professional Geographer, V. 69(3), p. 438-454. doi.org/10.1080/00330124.2016.1266948.

2016, Magill, C.R., Ashley, G.M., Dominguez-Rodrigo, M., and Freeman, K.H., Dietary Options and Behavior Suggested by Plant Biomarker Evidence in an Early Human Habitat, Proceedings of the National Academy. 113(8) www.pnas.org/cgi/doi/10.1073/pnas.1507055113

2016, Ashley, G.M., de Wet, C.B., Barboni, D., Magill, C.R. Subtle signatures of seeps: Record of   groundwater in a dryland, DK, Olduvai Gorge, Tanzania. The Depositional Record, Wiley, doi: 10.1002/dep2.11.

 2016, Driese, S.G., and Ashley, G.M., Paleoenvironmental reconstruction of a paleosol catena, the Zinj archaeological level, Olduvai Gorge, Tanzania: Quaternary Research, 85(1), 133-146. 85doi:10.1016/j.yqres.2015.10.007. 

2014, Cuthbert, M.O. and Ashley, G.M., A spring forward for hominin evolution in East Africa. PLOS ONE 9(9): e107358. doi:10.1371/journal.pone.0107358.

2014, Ashley, G.M., de Wet, C.B., Domínguez-Rodrigo, M., Karis, A.M. O’Reilly, T.M., Baluyot, R.D. Freshwater limestone in an arid rift basin: a Goldilocks effect. Journal of Sedimentary Research. 84:988-1004.

2014, Ashley, G.M. “Spring Settings”, Contribution to Encyclopedia of Geoarchaeology, Springer, Heidelberg, Germany.

2014, Ashley, G.M, Bunn, H.T., Delaney, J.S., Barboni, D., Domínguez-Rodrigo, M., Mabulla, A.Z.P., Gurtov, A.N., Baluyot, R.D., Beverly, E.J., Baquedano, E., Paleoclimate and paleoenvironmental framework of FLK North archaeological site, Olduvai Gorge, Tanzania. Quaternary International, 322-323: 54-65.

2014, Ashley, G.M., Beverly, E.J., Sikes, N.E., Driese, S.G. Paleosol diversity in the Olduvai   Basin, Tanzania: effects of geomorphology, parent material, depositional environment, and       groundwater on soil development. Quaternary International, 322-323:66-77.

2013, Ashley, G.M., Deocampo, D.M., Kahmann-Robinson, J., Driese, S.G. Groundwater-fed wetland sediments and paleosols: It’s all about water table. In New Frontiers in Paleopedology and Terrestrial Paleoclimatology: Paleosols and Soil Surface Analog Systems SEPM Special Publication No. 104:47-61.

2012, Magill, C.R., Ashley, G.M., and Freeman, K.H., Ecosystem variability and early human habitats in eastern Africa, Proceedings of National Acadeny of Sciences, www.pnas.org/cgi/doi/10.1073/pnas.1206276110

2012, Magill, C.R., Ashley, G.M., and Freeman, K.H., Water, plants, and early human habitats in eastern Africa. Proceedings of National Acadeny of Sciences, www.pnas.org/cgi/doi/10.1073/pnas.1209405109

2012 Domínguez-Rodrigo Manuel, Travis Rayne Pickering, Fernando Diez-Martín, Audax Mabulla, Charles Musiba, Gonzalo Trancho, Enrique Baquedano, Henry T. Bunn, Doris Barboni, Manuel Santonja, David Uribelarrea, Gail M. Ashley, María del Sol Martínez-Ávila, Rebeca Barba, Agness Gidna, José Yravedra, Carmen Arriaza1, Earliest Porotic Hyperostosis on a 1.5-Million-Year-Old Hominin, Olduvai Gorge, Tanzania: Plos One

2011, Ashley, G.M., Ndiema, E., Harris, J. W. K., Kiura, P.W., and Spencer, J.Q.G. Paleoenvironmental context of archaeological sites, implications for subsistence strategies under Holocene climate change, northern Kenya. Geoarchaeology, International Journal, 26(6), 809-837.

2010, Ashley, G.M, Barboni, D., Domínguez-Rodrigo, M., Bunn, H.T., Mabulla, A.Z.P., Diez-Martin F., Barba, R. and Baquedano, E. A spring and wooded habitat at FLK Zinj and their relevance to origins of human behavior, Quaternary Research, 74:304-314

2010, Ashley, G.M, Barboni, D., Domínguez-Rodrigo, M., Bunn, H.T., Mabulla, A.Z.P, Diez-Martin F., Barba, R. and Baquedano, E., Paleoenvironmental and paleoecological reconstruction of a freshwater oasis in savannah grassland at FLK North, Olduvai Gorge, Tanzania, Quaternary Research, 74: 333-343.

2010, Barboni, D., Ashley, G.M, Domínguez-Rodrigo, M., Bunn, H.T., Mabulla, A.Z.P, and Baquedano, E. Phytoliths infer locally dense and heterogeneous paleovegetation at FLK North and surrounding localities during upper Bed I time, Olduvai Gorge, Tanzania, Quaternary Research, 74:344-354.

2010, Domínguez-Rodrigo, Bunn, H.T., Mabulla, A.Z.P, Ashley, G.M., Diez-Martin F., Barboni, D., Prenderrgast, M.E., Yravedra, J., Barba, R., Sanchez, A., Baquedano, E., and Pickering, T.R. New excavations at the FLK Zinjanthrous site and its surroundings landscape and their behavioral implications. Quaternary Research, 74:315-332.

2010, Ashley, G. M., Domínguez-Rodrigo, Manuel, Bunn, Henry T., Mabulla, Audax Z.P., and Baquedano, Enrique, Sedimentary Geology and Human Origins: A Fresh Look At Olduvai Gorge, Tanzania. Journal of Sedimentary Research, 80: 703-709.

2010, Domínguez-Rodrigo, M, Mabulla, A.Z.P., Bunn, H.T., Diez-Martin, F., Barboni, D., Barba, R., Domenguez-Solera, P., Ashley, G.M., Baquedano, E., Yravedra, J., Disentangling hominin and carnivore activities near a spring at FLK North (Olduvai Gorge, Tanzania). Quaternary Research, 74:363-375.

2010, Bunn, H.T., Mabulla, A.Z.P., Domínguez-Rodrigo, M., Ashley, G.M., Barba, R., Diez-Martín, F., Remer, K., Yravedra, J., Baquedano, E., Was FLK North levels 1–2 a classic “living floor” of Oldowan hominins or a taphonomically complex palimpsest dominated by large carnivore feeding behavior? Quaternary Research, 74:355-362.

2009, Ashley, G.M., Tactikos, J.C. and Owen, R.B. Hominin use of springs and wetlands: paleoclimate and archaeological records from Olduvai Gorge (1.79-174 Ma). Palaeogeography, Palaeoclimatology, Palaeoecology, 272:1-16.

2009, Johnson Roure, C., Ashley, G.M., de Wet, C.B., Dvoretsky, R., Park, L. Hover, V.C., Owen, R.B., McBrearty, S., 2009, Tufa as a record of perennial freshwater in semi-arid rift basin, Kapthurin Formation, Central Kenya. Sedimentology, 56:1115-1137.

2008, Ashley, G.M., Human Evolution and Climate Change. In V. Gornitz (ed.) Encyclopedia of Paleoclimatology and Ancient Environments, Dordrecht, The Netherlands, Kluwer Academic Publishers, p. 446-450.

2007, Ashley, G.M. Orbital rhythms, monsoons, and playa lake response, Olduvai Basin, equatorial East Africa (~1.85-1.75), Geology, 35:1091-1094.

2007, Sikes, N.E. and Ashley, G.M., Stable isotopic signatures of pedogenic carbonates as indicators of paleoecology in the Plio-Pleistocene (upper Bed I) western margin of Olduvai Basin, Tanzania. In, African Paleoclimate and Human Evolution (M. Maslin and B. Christiansen, eds.), Journal of Human Evolution, v.53/5 pp 574-594.

2005, Liutkus, C.M., Wright, J.D., Ashley, G.M., and N.E. Sikes, Paleoenvironmental interpretation of lake-margin deposits using d13C and d18O results from Early Pleistocene carbonate rhizoliths, Olduvai Gorge, Tanzania. GEOLOGY, v. 33, p. 377-380.

2004, Ashley, G.M. , Maitima Mworia, J.M., Muasya, A.M., Owen, R.B., Driese, S.G., Hover, Renaut,R.W., Goman, M.F., Mathai, S. and Blatt, S.H. Sedimentation and evolution of a freshwater wetland in a semi-arid environment, Loboi Swamp, Kenya, East Africa. Sedimentology, 51:1-21.

2004, Driese, S.G., Ashley, G.M., Li, Z-H., Hover, V.C., and Owen, R.B., Micromorphology, geochemistry, and stable carbon isotopes of late Holocene wetland and floodplain soils, Loboi Plain, Kenya: wetland pedogenesis in a semi-arid setting. Palaeogeography, Paleoclimatology, Palaeoecology, v. 213, p. 231-250.  

2004, Owen, R.B., Renaut, R.W., Hover, V.C., Ashley, G.M., and Muasya, A.M. Swamps, springs, and diatoms: wetlands regions of the semi-arid Bogoria-Baringo rift, Kenya. Hydrobiologia, . 518 (1-3):59-78.

2003, Hover, V.C. and Ashley, G.M., Geochemical signatures of paleodepositional and diagenetic environments: a STEM/AEM study of authigenic clay minerals from an arid rift basin, Olduvai Gorge, Tanzania. Clays and Clay Minerals. 51:231-251.

2003, Liutkus, C.M. and Ashley, G.M., Facies model of a semi-arid freshwater wetland, Olduvai Gorge, Tanzania, Journal of Sedimentary Research. 73(5):691-795.

2003, Blumenschine, R.J., Peters, C.R., Masao, F.T., Clarke, R.J., Deino, A.L., Hay, R.L., Swisher, C.C., Stanistreet, I.G., Ashley, G.M., McHenry, L.J., Sikes, N.E., van der Merwe, N.J., Tactikos, J.C., Cushing, A.E., Deocampo, D.M., Njau, J.K., Ebert, J.I., 2002, Lake Pliocene Homo and hominid land use from western Olduvai Gorge, Tanzania. Science, 299:1217-1221.

2002, Ashley, G.M. and Liutkus, C.M., Tracks, trails and trampling by large vertebrates in a rift valley paleo-wetland, lowermost Bed II, Olduvai Gorge, Tanzania. Ichnos, 9:23-32.

2002, Ashley, G.M., Goman, M., Hover, V.C., Owen, R.B., Renaut, R.W. and Muasya, A.M., Artesian blister wetlands, a perennial water resource in the semi-arid rift valley of East Africa. Wetlands, 22(4):686-695.

2002, Ashley, G.M. and Hay R.L., Sedimentation patterns in an Plio-Pleistocene volcaniclastic rift-margin basin, Olduvai Gorge, Tanzania. In Sedimentation in Continental Rifts, SEPM Special Publication 73, p. 107-122.

2002, Deocampo, D.M., Blumenschine, R.J., and Ashley, G.M., Freshwater wetland diagenesis, fossil vertebrates, and traces of early hominids in the lowermost Bed II (~ 1.8 myr) playa lake-margin at Olduvai Gorge, Tanzania. Quaternary Research, v. 57, p. 271-281.

2001, Ashley, G.M., Archaeological sediments in springs and wetlands. In Stein, J.K. and Farrand, W.R., eds., Sediments in Archaeological Contexts, Salt Lake City, University of Utah Press, p. 183-210.

2000, Ashley, G.M. and Driese, S.G., Paleopedology and paleohydrology of a volcaniclastic paleosol interval: implications for early Pleistocene stratigraphy and paleoclimate record, Olduvai Gorge, Tanzania. Journal of Sedimentary Research, v. 70, n. 5 p.1065-1080.

2000, Ashley, G.M. Geologists probe hominid environments, GSA Today. v.10, n.2, p. 24-29.

More Articles ...

  1. Rob Blumenschine