Aaron D. Flesch, Ph.D.

Research Scientist

University of Arizona
School of Natural Resources and the Environment
The Desert Lab - Tumamoc Hill 1675 Alklam Road           Tucson, AZ 85745            

flesch@email.arizona.edu

Web Site

Research Gate

Google Scholar

Refereed Articles:

  • Flesch, A. D., C. González Sánchez, and J. Valenzuela Amarillas. 2016. Abundance and habitat relationships of breeding birds in the Sky Islands and adjacent Sierra Madre Occidental of northwest Mexico. Journal of Field Ornithology 87:176-195. (PDF) (Supporting Information)
  • Flesch, A.D., P. Warshall, and S. Jacobs. 2015. Avian diversity, status, and conservation in the northwestern Neotropics in Sonora, Mexico. Natural Areas Journal 35: 288-296. (PDF with cover) (Appendix)
  • Flesch, A. D., R. L. Hutto, W. J. D. van Leeuwen, K. Hartfield, and S. Jacobs. 2015. Spatial, temporal, and density-dependent components of habitat quality for a desert owl. PLoS ONE 10(3): e0119986. (Link)
  • Van Devender, T. R., A. L. Reina-Guererro, A. D. Flesch, S. Jacobs, and M. F. Wilson. 2014. Additions to the flora of Sonora, Mexico. Phytoneuron 76: 1-8. (PDF)
  • Flesch, A. D. 2014. Spatiotemporal trends and drivers of population dynamics in a declining desert predator. Biological Conservation 175:110-118. (Link)
  • Hutto, R. L., A. D. Flesch, and M. A. Fylling. 2014. A bird’s-eye view of forest restoration: Do changes reflect success? Forest Ecology and Management 327:1-9. (Link)
  • Van Devender, T. R., R. Spellenberg, A. D. Flesch, S. Jacobs, and A. L. Reina-Guererro. 2013. Northern distributional limits of the Mexican willow oak (Quercus viminea Trel.) in Arizona, Sonora, and Chihuahua. Phytoneuron 48:1–7. (PDF)
  • Rosenzweig, M. L., F. Drumlevitch, K. L. Borgmann, A. D. Flesch, S. M. Grajeda, G. Johnson, K. Mackay, K. L. Nicholson, V. Patterson, B. M. Pri-Tal, N. Ramos, and K. P. Serrano. 2012. An ecological telescope to view future terrestrial vertebrate diversity. Evolutionary Ecology Research 14:247-268. (PDF)
  • Flesch, A. D., and R. J. Steidl.  2010.  Importance of environmental and spatial gradients on patterns and consequences of resource selection.  Ecological Applications 20:1021-1039. (PDF)
  • Flesch, A. D., D. E. Swann, D. S. Turner, and B. F. Powell.  2010.  Herpetofauna of the Rincon Mountains, Arizona.  The Southwestern Naturalist 55:240-253. (PDF)
  • Flesch, A. D., C. W. Epps, J. W. Cain, M. Clark, P. R. Krausman, and J. R. Morgart.  2010. Potential effects of the United States-Mexico border fence on wildlife.  Conservation Biology 24:171-181. (PDF) (featured in Conservation Biology's 2010 International Year of Biodiversity: Connectivity and Corridors, virtual issue)
  • Snyder, N. F. R., H. A. Snyder, N. Moore-Craig, A. D. Flesch, R. W. Wagner, and R. A. Rowlett.  2010.  Short-tailed hawks nesting in the Sky Islands of the southwest.  Western Birds 41:202-230. (PDF) (with cover)
  • Flesch, A. D.  2008. Distribution and status of breeding landbirds in northern Sonora, Mexico.  Studies in Avian Biology 37:28-45. (PDF) (Invited)
  • Flesch, A. D., and R. J. Steidl.  2007.  Detectability and response rates of ferruginous pygmy-owls.   Journal of Wildlife Management 71:981-990. (PDF)
  • Flesch, A. D., and R. J. Steidl.  2006.  Population trends and implications for monitoring cactus ferruginous pygmy-owls in northern Mexico.   Journal of Wildlife Management 70:867-871. (PDF)
  • Flesch, A. D.  2003.  Perch-site selection and spatial use by cactus ferruginous pygmy-owls in southcentral Arizona.  Journal of Raptor Research 37:151-157. (PDF)  
  • Book Chapters:

  • Villaseñor-Gómez, J. F., O. Hinojosa-Huerta, E. Gómez-Limón, D. Krueper, and A. D. Flesch.  2010.  Avifauna. Pages 385-420 in F. E. Molina-Freaner and T. R. Van Devender (editors), The Biological Diversity of Sonora Mexico. Universidad Nacional Autónoma de México, México City, México. (PDF) (Appendix)  
  • Non-Refereed Articles:

  • Gutiérrez-González C., M.A. Gómez-Ramírez, D. Gutierrez-Garcia, J. Valenzuela, J.C. Rorabaugh, and A. D. Flesch. 2016. Interactions between Sonoran Desert Toads (Incilius alvarius) and mammalian predators at the Northern Jaguar Reserve, Sonora, Mexico. Sonoran Herpetologist 29(2):26-27. (PDF)
  • Ferguson, G. M., A. D. Flesch, and T. R. Van Devender. 2013. Biogeography and diversity of pines in the Madrean Archipelago. Pages 197-203 in Gottfried, G. J et al. (compilers), Merging science and management in a rapidly changing world: biodiversity and management of the Madrean Archipelago III, RMRS-P-67. U.S. Department of Agriculture, Forest Service. (PDF)
  • Van Devender, T. R., S. Avila-Villegas, M. Emerson, D. Turner, A.D. Flesch, and N.S. Deyo. 2013. Biodiversity in the Madrean Archipelago of Sonora, Mexico. Pages 10-16 in Gottfried, G. J et al. (compilers), Merging science and management in a rapidly hanging world: biodiversity and management of the Madrean Archipelago III, RMRS-P-67. U.S. Department of Agriculture, Forest Service. (PDF) (invited plenary)
  • Warshall, P. and A. D. Flesch. 2013. Bird ecology and conservation on the Northern Jaguar Reserve: Recent lessons. Pages 91-96 in Gottfried, G. J et al. (compilers), Merging science and management in a rapidly changing world: biodiversity and management of the Madrean Archipelago III, RMRS-P-67. U.S. Department of Agriculture, Forest Service. (PDF)
  • Flesch, A. D. 2010. Ferruginous pygmy-owls in the Sonoran Desert. Bulletin of the Ecological Society of America 91:446-449. (PDF) (invited)
  • Flesch, A. D. 2010. Research and recovery of ferruginous pygmy-owls in the Sonoran Desert. Vermilion Flycatcher 55(2):14-15. (PDF with cover)
  • Flesch, A. D., and L. E. Hahn.  2005.  Distribution of birds and plants at the western and southern edges of the Madrean Sky Islands in Sonora, Mexico.  Pages 80-87 in Gottfried G. J. et al. (compilers), Connecting mountain islands and desert seas: biodiversity and management of the Madrean Archipelago II, RMRS-P-36.  U. S. Department of Agriculture, Forest Service. (PDF)
  • Theses:

  • Flesch, A. D. 2013. Effects of local and landscape processes on animal distribution and abundance. Ph.D. Dissertation, University of Montana, Division of Biological Sciences. (PDF)
  • Flesch, A. D.  2003.  Distribution, abundance, and habitat of cactus ferruginous pygmy-owls in Sonora, Mexico.  M.S. Thesis, University of Arizona, School of Natural Resources. (PDF)
  • Technical Reports:

  • Noson, A. and A.D. Flesch. 2016. Trends in riparian bird populations and habitat conditions along the Madison and Missouri Rivers from 2004-2015. Report to Northwestern Energy Wildlife Committee. University of Montana Bird Ecology Lab, Missoula, MT.
  • Flesch, A. D. 2014. Distribution, abundance, habitat, and biogeography of breeding birds in the Sky Islands and adjacent Sierra Madre Occidental of northwest Mexico. Final report to U.S. National Park Service and U.S. Fish and Wildlife Service for CESU Agreement P08AC00077/J1212080048 and FWS Cooperative Agreement F12AP00566. School of Natural Resources and the Environment, University of Arizona, Tucson, Arizona and Division of Biological Sciences, University of Montana, Missoula, Montana. (PDF)
  • Flesch, A.D., R.L. Hutto, C.G. Morris, T. Hare, and S. Avila. 2014. Restoration of priority habitats for Neotropical migratory birds in the Madrean Sky Islands region, northwest Mexico. Final report to U.S. Fish and Wildlife Service, Neotropical Migratory Bird Conservation Act grant 5139. Division of Biological Sciences, University of Montana, Missoula, MT, and Sky Island Alliance, Tucson, AZ. (PDF)
  • Flesch, A. D. and S. L Jacobs. 2013. Bird surveys and habitat assessements along the Aros-Yaqui river corridor on and around the Northern Jaguar Reserve. Report fo Naorthern Jaguar Project and Naturalia A.C. (PDF)
  • Flesch, A. D. 2010. Population trends of ferruginous pygmy-owls in northern Sonora, Mexico and implications for Organ Pipe Cactus National Monument. Report to Organ Pipe Cactus National Monument. (PDF)
  • Flesch, A. D. 2010. Avian communities of the Northern Jaguar Reserve east-central Sonora, Mexico. Report to Northern Jaguar Project and Naturalia A.C. (PDF)
  • Flesch, A. 2009. Landbird monitoring in the Sonoran Desert Network: Status report 2008. Natural Resource Technical Report NPS/XXXN/NRTR–2009/0XX. National Park Service, Fort Collins, Colorado. (PDF)
  • Flesch, A. D. 2009. Breeding, migratory, and wintering birds of the Northern Jaguar Reserve east-central Sonora, Mexico. Report to Northern Jaguar Project and Naturalia A.C. (PDF)
  • Flesch, A. D. 2008. Distribution and status of birds of conservation interest and identification of important bird areas in Sonora Mexico. Report to U.S. Fish and Wildlife Service, Sonoran Joint Venture, Tucson, Arizona. Cooperative Agreement No. 201816J827. (PDF)
  • Flesch, A. D. 2008. Population and community dynamics of lizards and rodents in Organ Pipe Cactus National Monument 1989-2006 and implications for future monitoring. Report to Organ Pipe Cactus National Monument and Desert Southwest Cooperative Ecosystems Studies Unit, NPS Cooperative Agreement No. H1200050003. (PDF)
  • Flesch, A. D. 2008. Population and demographic trends of ferruginous pygmy-owls in northern Sonora Mexico 2000-2008. Progress report to program sponsors. (PDF)
  • Flesch, A. D. 2008. Migratory and resident birds of the Northern Jaguar Reserve of east-central Sonora, Mexico. Report to Northern Jaguar Project and Naturalia A.C. (PDF)
  • Flesch, A. D. 2008. Status and population size of breeding grassland birds on Rancho Los Fresnos, northern Sonora, Mexico. Report to Biodiversidad y Desarrollo Armónica A.C. (PDF)
  • Flesch, A. D. 2008. Population and demographic trends of ferruginous pygmy-owls in northern Sonora Mexico 2000-2007 and implications for recovery in Arizona. Progress report to program sponsors. (PDF)
  • Flesch, A. D. and R. J. Steidl.  2007.  Association between roadways and cactus ferruginous pygmy-owls in northern Sonora Mexico.  Report to Arizona Department of Transportation, A.G. Contract No. KR02-1957TRN, JPA 02-156. (PDF)
  • Powell, B. F., L. Woods, and A. D. Flesch.  2007.  Draft effectiveness monitoring plan for Pima County: Phase I.  Report to Pima County by RECON Environmental Inc., RECON No. 4115B/3272B. (PDF)
  • Flesch, A. D.  2007.  Population and demographic trends of ferruginous pygmy-owls in northern Sonora Mexico and implications for recovery in Arizona.  Report to Defenders of Wildlife, Tucson Audubon Society, Rincon Chapter of the Sierra Club, and Center for Biological Diversity. (PDF)
  • Powell, B. F., A. D. Flesch, D. Angell, K. Beaupre, and W. L. Halvorson. 2007. Landbird monitoring protocol for the Sonoran Desert Network. Version 1.02. Natural Resource Report NPS/SODN/NRTR-2007/00X. National Park Service, Fort Collins, Colorado. (PDF)
  • O’Brien, C, A. D. Flesch, E. Wallace, M. Bogan, S. E. Carrillo-Percástegui, S. Jacobs, and C. van Riper III.  2006.  Biological Inventory of the Rio Aros, Sonora, Mexico: A river unknown.  Final Report to T&E, Inc by School of Natural Resources and U.S. Geological Survey, Sonoran Desert Research Station. (PDF)
  • Flesch, A. D, D. E. Swann, and B. F. Powell.  2006.  Chapter 4: Amphibian and reptile inventory.  Pages 26-42 in B. F. Powell, W. L. Halvorson, and C. A. Schmidt, editors.  Vascular plant and vertebrate inventory of Saguaro National Park, Rincon Mountain District. USGS Sonoran Desert Research Station and School on Natural Resources. (PDF)
  • Flesch, A. D, D. E. Swann, and B. F. Powell.  2006.  Chapter 4: Amphibian and reptile inventory.  In B. F. Powell, W. L. Halvorson, and C. A. Schmidt, editors.  Vascular plant and vertebrate inventory of Saguaro National Park, Tucson Mountain District. USGS Sonoran Desert Research Station and School on Natural Resources.
  • Flesch, A. D. and R. J. Steidl.  2006.  Population trends of ferruginous pygmy-owls in northern Mexico and implications for Tumacácori and other Arizona National Park Units.  Report to Desert Southwest Cooperative Ecosystems Studies Unit and Tumacácori National Historic Park. (PDF)
  • Flesch, A. D. and R. J. Steidl.  2005.  Trends and productivity of cactus ferruginous pygmy-owls in northern Sonora, Mexico: Implications for Organ Pipe Cactus National Monument.  Report to Desert Southwest Cooperative Ecosystems Studies Unit, Intermountain Region International Conservation Programs Office, and Organ Pipe Cactus National Monument. (PDF)
  • Flesch, A. D. and R. J. Steidl.  2002.  Nest-site selection by cactus ferruginous pygmy-owls in northern Sonora Mexico.  Report to U.S. Fish and Wildlife Service, Sonoran Joint Venture, Tucson, Arizona. Cooperative Agreement No.1448-20181-01-J862. (PDF)
  • Flesch, A. D. and R. J. Steidl.  2001.  Cactus ferruginous pygmy-owl and nongame bird surveys on the Cabeza Prieta National Wildlife Refuge. 2001.  Report to U.S. Fish and Wildlife Service Cabeza Prieta National Wildlife Refuge, Ajo Arizona.  Cooperative Agreement No. 1448-20181-00-G918. (PDF)
  • Flesch, A. D.  1999.  Cactus ferruginous pygmy-owl surveys and nest monitoring on and around the Buenos Aires National Wildlife Refuge, Altar Valley, Arizona.  Report to U.S. Fish and Wildlife Service, Buenos Aires National Wildlife Refuge, Sasabe, Arizona.  Cooperative Agreement No. 1448-00002-99-G943.
  • Flesch, A. D.  1999.  Grassland bird community monitoring on the Buenos Aires National Wildlife Refuge 1998.  Report to U.S. Fish and Wildlife Service, Buenos Aires National Wildlife Refuge, Sasabe, Arizona.
  • Flesch, A. D.  1998.   Avian community monitoring along Arivaca Creek, Buenos Aires National Wildlife Refuge, 1998.  Report to U.S. Fish and Wildlife Service, Buenos Aires National Wildlife Refuge, Sasabe, Arizona.  Reference No. R2-8-0854, Order No. 201818M147.
  • Flesch, A. D.  1998.  Cactus ferruginous pygmy-owl surveys on the San Bernardino National Wildlife Refuge 1998.  Report to U.S. Fish and Wildlife Service, San Bernardino National Wildlife Refuge, Douglas, Arizona.
  • Flesch, A. D.  1997.  Distribution and abundance of grassland birds on the Buenos Aires National Wildlife Refuge: A monitoring program.  Report to U.S. Fish and Wildlife Service, Buenos Aires National Wildlife Refuge, Sasabe, Arizona.