Thomas E. Lacher, Jr.

Thomas E. Lacher, Jr. Title: Professor

Expertise: Tropical ecology, conservation biology, experimental design


  • B.S., University of Pittsburgh
  • Ph.D., University of Pittsburgh

Office Phone: (979) 845-5750


Office: 201 Old State Chem Building

Current Research

My current research is focused on the assessment of conservation status in mammals and the analysis and monitoring of large-scale patterns and trends in biodiversity, primarily in the tropics. I was founding director of the Tropical Ecology, Assessment and Monitoring Network, based at Conservation International and currently under the direction of Dr. Sandy Andelman. This project is implementing standardized protocols for the monitoring of a variety of vegetation, climate and vertebrate indicators at field stations in the tropics. I am also involved in the Global Mammal Assessment, done in collaboration with the IUCN Species Survival Commission, which has evaluated the conservation status of all species of mammals in the world. Texas A&M University is also one of ten members of the Red List Partnership and I am interested and involved in policy decisions related to the Red List. I am also Co-Chair of the IUCN Small Mammal Specialist Group. Recent graduate student research includes mammalian community patterns along an altitudinal gradient in Mexico, spatial and temporal patterns of space and resource use of macaws in Peru, cultural values and conservation in the Iwokrama Forest region of Guyana, conservation policies and corridor conservation in Costa Rica, and assessment of corridor-level conservation of a plant-pollinator system in the Big Bend-Carmen Corridor region.


WFSC 300/450/451/483 Dominica Field and Tropical Biology, WFSC 304 Wildlife and Fisheries Conservation, and WFSC 401 Mammalogy

Selected Publications

Books and Monographs

  • Lacher, T.E., Jr. 1981. The comparative social behavior of Kerodon rupestris and Galea spixii and the evolution of behavior in the Caviidae.  Bulletin of the Carnegie Museum 17:1 71.
  • Kendall, R.J. and T.E. Lacher, Jr. (eds.). 1994. Wildlife Toxicology and Population Modeling: Integrated Studies of Agroecosystems. Lewis Publishers, Chelsea, MI, 576 pp.
  • Savitsky, B.G. and T.E. Lacher, Jr. (eds.). 1998. GIS Methodologies for Developing Conservation Strategies: Tropical Forest Recovery and Wildlife Management in Costa Rica.  Columbia University Press, New York, 237pp.
  • Kendall, R.J., T.E. Lacher, Jr., G.P. Cobb, and S.B. Cox (eds). 2010. Wildlife Toxicology: Emerging Contaminant and Biodiversity Issues. Taylor and Francis, Boca Raton, i-xviii + 321 pp.

Recent Papers and Book Chapters

  • Fonseca, G.A.B., C. Gascon, M.K. Steininger, T. Brooks, R.A. Mittermeier and T.E. Lacher. Jr. 2002. A global fragmentation experiment underway. Science 295: 1835.
  • Leal, I.R., J.M.C. da Silva, M. Tabarelli, and T.E. Lacher, Jr. 2005. Changing the course of biodiversity conservation in the Caatinga of Northeastern Brazil. Conservation Biology 19:701-706.
  • Weiser, M.D., B.J. Enquist, B. Boyle, T. Killeen, P. Jorgensen, G. Fonseca, M. Jennings, A.J. Kerkoff, T.E. Lacher, Jr., A. Monteaqudo, M.P. Nuñez-Vargas, O.L. Phillips, N.G. Swenson, and R. Vasquez. 2007. Latitudinal patterns of range size and species richness of New World woody plants. Global Ecology and Biogeography 16:679-688.
  • Schipper, J. J. Chanson, F. Chiozza, N. Cox, M. Hoffmann, V. Katariya, J. Lamoreux, A. Rodrigues, S.N. Stuart, H.J. Temple, J. Baillie, L. Boitani, T.E. Lacher, Jr., R.A. Mittermeier, A.T. Smith, et al.. 2008. The status of the world’s land and marine mammals: diversity, threat, and knowledge. Science 322:225-230.
  • Castro-Arellano, I. and T.E. Lacher, Jr. 2009. Segregation by temporal niche in high and low richness rodent assemblages of subtropical Mexico. Journal of Tropical Ecology 25:593-603.
  • Aguiar, J.M. and T.E. Lacher, Jr. 2009. Cranial morphology of the dwarf marmoset Callibella in the context of callitrichid variability. Pp. 355-380, In: The Smallest Anthropoids: The Marmoset/Callimico Radiation, Susan M. Ford, Leila Porter, Lesa C. Davis, (eds.) Springer, New York.
  • Lacher, T.E., Jr., J. Bickham, C. Gascon, R. Green, R.D. Moore, and M. Mora. 2010. Impacts of contaminants and pesticides on biodiversity and ecosystem structure and function. Pp. 109-143, In: Wildlife Toxicology: Emerging Contaminant and Biodiversity Issues. R.J. Kendall, T.E. Lacher, Jr., G.P. Cobb, and S.B. Cox (eds). Taylor and Francis, Boca Raton.
  • Castro-Arellano, I. T.E. Lacher, Jr., M.R. Willig, and T. Rangel. 2010. Assessment of assemblage-wide temporal niche segregation using null models. Methods in Ecology and Evolution 1:311-318.
  • Lamoreux, J.F. and T.E. Lacher, Jr. 2010. Mammalian endemism, range size and conservation status in the southern temperate zones. Diversity and Distributions 16:922-931.
  • Hoffmann, M. et al. (Multiple authors from the Global Assessment Teams incl. T.E. Lacher, Jr.). 2010. The impact and shortfall of conservation on the status of the world’s vertebrates. Science 330:1503-1509.
  • Corso, A.E., J.B. Woolley, and T.E. Lacher, Jr. 2010. Using digital photography and image analysis software to estimate the emergence of bats at Tou Santi Cave, Dominica, West Indies. Caribbean Journal of Science 46:169-175.
  • Hixon, S., A. Brooks, T.E. Lacher, Jr., B. Miculka, C. Richmond, D. Warrendorf, A. Whitmire, B. Wilkins, and J.B. Woolley. 2012. Wing morphology, flight speeds and insights into niche structure in Caribbean bats from Dominica. Chiroptera Neotropical 18:1067-1073.
  • Swenson, N.G., B.J. Enquist, J.Pither, A.J. Kerkhoff, B. Boyle, M.D. Weiser, J.J. Elser, W.F. Fagan, J. Forero-Montaña, N. Fyllas, N.J.B. Kraft, J. Lake, A.T. Moles, S. Patiño, O.L. Phillips, C.A. Price, P.B. Reich, C.A. Quesada, J.C. Stegen, R. Valencia, I.J. Wright, S.J. Wright, S. Andelman, P.M. Jørgensen, T.E. Lacher Jr., A. Monteagudo, M.P. Núñez Vargas, R. Vasquez-Martínez, and K.M. Nolting. 2012. The biogeography and filtering of woody plant functional diversity in North and South America. Global Ecology and Biogeography 21:798-808.
  • Lacher, T.E., Jr., L. Boitani, and G.A.B. da Fonseca. 2012. The IUCN Global Assessments: Partnerships, collaboration and data sharing for biodiversity science and policy. Conservation Letters 5:327-333.

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