Daniel Saenz
Research Wildlife Biologist
506 Hayter Street
Nacogdoches, TX 75965
Phone: 936-569-7981Nacogdoches, TX 75965
dan.saenz@usda.gov
Current Research
My research focuses primarily on basic amphibian ecology and the impacts of forest management practices on amphibian communities. The long-range goals of my research are:- To determine the impacts of various forest management practices (including fragmentation) on amphibians
- To determine likely consequences of climatic changes on amphibians
- To develop guidelines for managing southern forest ecosystems to ensure healthy populations of amphibians
- To develop and evaluate alternative monitoring protocols for amphibians
- To develop and validate predictive habitat relationship models for amphibians.
Education
- Ph.D. in Wildlife and Fisheries Sciences
- Texas A&M University
- M.S. in Biology
- Stephen F. Austin State University
- B.S. in Biology
- Stephen F. Austin State University
Featured Publications and Products
- Saenz, Daniel; Kavanagh, Brendan T.; Kwiatkowski, Matthew A. 2010. Batrachochytrium dendrobatidis detected in amphibians from National Forests in eastern Texas, USA.
- Saenz, Daniel; Adams, Cory K.; Pierce, Josh B.; Laurencio, David. 2009. Occurrence of Batrachochytrium dendrobatidis in an anuran community in the southeastern Talamanca Region of Costa Rica.
- Rudolph, D. Craig; Schaefer, Richard R.; Pierce, Josh B.; Saenz, Dan; Conner, Richard N. 2009. Texas ratsnake predation on southern flying squirrels in red-cockaded woodpecker cavities.
- Saenz, Daniel; Pierce, Joshua B. 2009. Blue jay attacks and consumes cedar waxwing.
- Conner, Richard N.; Saenz, Daniel; Rudolph, D. Craig. 2006. Population trends of red-cockaded woodpeckers in Texas.
Publications
- Carroll, Calvin M.; Saenz, Daniel ; Rudolf, Volker H. W. 2023. Tracking phenological distributions and interaction potential across life stages.
- Adams, Connor S.; Saenz, Daniel ; Kidd, Kathryn R.; Schalk, Christopher M. 2022. Disparate patterns of taxonomic and functional predator diversity under different forest management regimes.
- Schalk, Christopher M.; Weng, Yuhui H.; Adams, Connor S.; Saenz, Daniel . 2022. Spatiotemporal patterns of snake captures and activity in upland pine forests.
- Vogt, James T.; Olatinwo, Rabiu ; Ulyshen, Michael D.; Lucardi, Rima D.; Saenz, Daniel ; McKenney, Jessica L. 2021. An overview of Triadica sebifera (Chinese Tallowtree) in the southern United States, emphasizing pollinator impacts and classical biological control.
- Vogt, James T.; Olatinwo, Rabiu ; Ulyshen, Michael D.; Lucardi, Rima D.; Saenz, Daniel ; McKenney, Jessica L. 2021. An overview of Triadica sebifera (Chinese tallowtree) in the southern United States, emphasizing pollinator impacts and classical biological control.
- Perez, Leah K.; Childress, James D.; Kwiatkowski, Matthew A.; Saenz, Daniel ; Gumm, Jennifer M. 2021. Calling phenology and call structure of sympatric treefrogs in eastern Texas.
- Montez, Raymond D.; Saenz, Daniel ; Martynova-Van Kley, Alexandra ; Van Kley, James ; Nalian, Armen ; Farrish, Kenneth . 2021. The influence of Chinese tallow (Triadica sebifera) leaf litter on water quality and microbial community composition.
- Schiwitz, Nicholas C.; Schalk, Christopher M.; Saenz, Daniel . 2020. Activity level-predation risk tradeoff in a tadpole guild: implications for community organization along the hydroperiod gradient.
- Saenz, Daniel ; Adams, Cory K. 2020. Invasive plant leaf litter affects anuran embryo survival rates, timing of hatching, and hatchling size.
- Ward, Krista J.; Kobe, Kasey L.; Schiwitz, Nicholas C.; Saenz, Daniel ; Schalk, Christopher M. 2020. Risk of snake entanglement is affected by installation method of erosion control blankets.
- Ward, Krista J.; Kobe, Kasey L.; Schiwitz, Nicholas C.; Saenz, Daniel ; Schalk, Christopher M. 2020. The diversity of erosion control products and implications for wildlife entanglement.
- Ebert, Sarah E.; Jobe, Kasey L.; Schalk, Christopher M.; Saenz, Daniel ; Adams, Cory K.; Comer, Christopher E. 2019. Correlates of snake entanglement in erosion control blankets.
- Lannoo, Michael J.; Stiles, Rochelle M.; Saenz, Daniel ; Hibbitts, Toby J. 2018. Comparative call characteristics in the anuran subgenus Nenirana.
- Miller, David A. W.; Grant, Evan H. Campbell; Muths, Erin ; Amburgey, Staci M.; Adams, Michael J.; Joseph, Maxwell B.; Waddle, J. Hardin; Johnson, Pieter T. J.; Ryan, Maureen E.; Schmidt, Benedikt R.; Calhoun, Daniel L.; Davis, Courtney L.; Fisher, Robert N.; Green, David M.; Hossack, Blake R.; Rittenhouse, Tracy A. G.; Walls, Susan C.; Bailey, Larissa L.; Cruickshank, Sam S.; Fellers, Gary M.; Gorman, Thomas A.; Haas, Carola A.; Hughson, Ward ; Pilliod, David S.; Price, Steven J.; Ray, Andrew M.; Sadinski, Walt ; Saenz, Daniel ; Barichivich, William J.; Brand, Adrianne ; Brehme, Cheryl S.; Dagit, Rosi ; Delaney, Katy S.; Glorioso, Brad M.; Kats, Lee B.; Kleeman, Patrick M.; Pearl, Christopher A.; Rochester, Carlton J.; Riley, Seth P. D.; Roth, Mark ; Sigafus, Brent H. 2018. Quantifying climate sensitivity and climate-driven change in North American amphibian communities.
- Carter, Shannon K.; Saenz, Daniel ; Rudolf, Volker H. W. 2018. Shifts in phenological distributions reshape interaction potential in natural communities.
- Saenz, Daniel; Adams, Cory K. 2017. Effects of Chinese tallow leaf litter on water chemistry and surfacing behaviour of anuran larvae.
- Macey, John N.; Burt, D. Brent; Saenz, Daniel; Conner, Richard N. 2016. Habitat use and avoidance by foraging red-cockaded woodpeckers in east Texas.
- Grant, Evan H. Campbell; Miller, David A. W.; Schmidt, Benedikt R.; Adams, Michael J.; Amburgey, Staci M.; Chambert, Thierry; Cruickshank, Sam S.; Fisher, Robert N.; Green, David M.; Hossack, Blake R.; Johnson, Pieter T. J.; Joseph, Maxwell B.; Rittenhouse, Tracy A. G.; Ryan, Maureen E.; Waddle, J. Hardin; Walls, Susan C.; Bailey, Larissa L.; Fellers, Gary M.; Gorman, Thomas A.; Ray, Andrew M.; Pilliod, David S.; Price, Steven J.; Saenz, Daniel; Sadinski, Walt; Muths, Erin. 2016. Quantitative evidence for the effects of multiple drivers on continental-scale amphibian declines.
- Maynard, Ross J.; Aall, Nathalie C.; Saenz, Daniel; Hamilton, Paul S.; Kwiatkowski, Matthew A. 2016. Road-edge effects on herpetofauna in a lowland Amazonian rainforest.
- Saenz, Daniel; Hall, Taylor L.; Kwiatkowski, Matthew A. 2015. Effects of urbanization on the occurrence of Batrachochytrium dendrobatidis: do urban environments provide refuge from the amphibian chytrid fungus?.
- Schalk, Christopher M.; Saenz, Dan. 2015. Environmental drivers of anuran calling phenology in a seasonal neotropical ecosystem.
- Johnson, James B.; Saenz, Daniel; Adams, Cory K.; Hibbitts, Toby J. 2015. Naturally occurring variation in tadpole morphology and performance linked to predator regime.
- Greenberg, Cathryn H.; Perry, Roger W.; Franzreb, Kathleen E.; Loeb, Susan C.; Saenz, Daniel; Rudolph, D. Craig; Winters, Eric; Fucik, E.M.; Kwiatkowski, M.A.; Parresol, B.R.; Austin, J.D.; Tanner, G.W. 2014. Climate change and wildlife in the southern United States: potential effects and management options.
- Hall, Taylor L.; Saenz, Daniel; Kwiatkowski, Matthew A. 2013. Differential jumping performance in newly metamorphosed Blanchard's cricket frogs, Acris blanchardi (Anura: Hylidae), from fish- and invertebrate-dominated ponds.
- Saenz, Daniel; Fucik, Erin M.; Kwiatkowski, Matthew A. 2013. Synergistic effects of the invasive Chinese tallow (Triadica sebifera) and climate change on aquatic amphibian survival.
- Cotten, Taylor B.; Kwiatkowski, Matthew A.; Saenz, Daniel; Collyer, Michael. 2012. Effects of an invasive plant, Chinese tallow (Triadica sebifera), on development and survival of anuran larvae.
- Adams, C.K.; Saenz, D. 2012. Leaf litter of invasive Chinese tallow (Triadica sebifera) negatively affects hatching success of an aquatic breeding anuran, the southern leopard frog (Lithobates sphenocephalus).
- Adams, Cory K.; Saenz, Daniel; Conner, Richard N. 2011. Palatability of twelve species of anuran larvae in eastern Texas.
- Adams, Cory K.; Saenz, Dan. 2011. Use of artificial wildlife ponds by reptiles in eastern Texas.
- Saenz, Daniel; Podlipny, Heather V.; Tasi, Pei-Yu; Burt, D. Brent; Yuan, Hsiao-Wei. 2009. A survey of reptiles and amphibians on Kinmen Island, Taiwan.
- Conner, Richard N.; Saenz, Daniel; Burt, D. Brent. 2006. Food for early succession birds: relationships among arthropods, shrub vegetation, and soil.
- Burgdorf, Shirley J.; Rudolph, D. Craig; Conner, Richard N.; Saenz, Daniel; Schaefer, Richard R. 2005. A successful trap design for capturing large terrestrial snakes.
- Conner, Richard N.; Shackelford, Clifford E.; Schaefer, Richard R.; Saenz, Daniel. 2005. The effects of fire suppression on Bachman's sparrows in upland pine forests of eastern Texas.
- Conner, Richard N.; Saenz, Daniel. 2005. The longevity of large pine snags in eastern Texas.
- Conner, Richard N.; Saenz, Daniel. 2005. The longevity of large pine snags in eastern Texas.
- Rudolph, D. Craig; Schaefer, R. R.; Saenz, D.; Conner, R. N. 2004. Arboreal behavior in the timber rattlesnake, Crotalus horridus, in eastern Texas.
- Conner, Richard N.; Collins, Christopher S.; Saenz, Daniel; Trees, Toni; Schaefer, Richard R.; Rudolph, D. Craig. 2004. Arthropod density and biomass in longleaf pines: effects of pine age and hardwood midstory.
- Schaefer, Richard R.; Rudolph, D. Craig; Conner, Richard N.; Saenz, Daniel. 2004. Composition of mixed-species foraging flocks associated with red-cockaded woodpeckers.
- McCormick, James R.; Conner, Richard N.; Saenz, Daniel; Burt, D. Brent. 2004. Evidence of Red-cockaded Woodpecker nestling displacement by southern flying squirrels.
- Conner, Richard N.; Saenz, Daniel; Rudolph, D. Craig; Schaefer, Richard R. 2004. Extent of Phellinus pini decay in loblolly pines and red-cockaded woodpecker cavity trees in eastern Texas.
- Conner, Richard N.; Saenz, Daniel; Schaefer, Richard R.; McCormick, James R.; Rudolph, D. Craig; Burt, D. Brent. 2004. Group size and nest success in red-cockaded woodpeckers in the West Gulf Coastal Plain: helpers make a difference.
- Saenz, Daniel; Schaefer, Richard R.; Conner, Richard N.; Rudolph, D. Craig; Carrie, Dawn K.; Best, M. Stephen. 2004. Influence of artificial cavity age on red-cockaded woodpecker translocation success.
- McCormick, James R.; Conner, Richard N.; Burt, D. Brent; Saenz, Daniel. 2004. Influence of habitat and number of nestlings on partial brood loss in red-cockaded woodpeckers.
- Schaefer, Richard R.; Conner, Richard N.; Rudolph, D. Craig; Saenz, Daniel. 2004. Red-cockaded woodpecker nestling provisioning and reproduction in two different pine habitats.
- Schaefer, Richard R.; Rudolph, D. Craig; Conner, Richard N.; Saenz, Daniel. 2004. Red-cockaded woodpecker nutritional status in relation to habitat: Evidence from ptilochronology and body mass.
- Rudolph, D. Craig; Conner, Richard N.; Schaefer, Richard R.; Saenz, Daniel; Carrie, Dawn K.; Carrie, N. Ross; Maxey, Ricky W.; Montague, Warren G.; Neal, Joe; Moore, Kenneth; Skeen, John; Reid, Jeffrey A. 2004. Red-cockaded woodpecker status and management: West Gulf Coastal Plain and Interior Highlands.
- Conner, Richard N.; Rudolph, D. Craig; Saenz, Daniel; Johnson, Robert H. 2004. The red-cockaded woodpecker cavity tree: A very special pine.
- Conner, Richard N.; Saenz, Daniel; Rudolph, D. Craig. 2004. The red-cockaded woodpecker: interactions with fire, snags, fungi, rat snakes and pileated woodpeckers.
- Conner, Richard N.; Rudolph, D. Craig; Saenz, Daniel; Schaefer, Richard R.; Burgdorf, Shirley J. 2003. Growth rates and post-release survival of captive neonate timber rattlesnakes Crotalus horridus.
- Johnson, James B.; Saenz, Daniel; Burt, D. Brent; Conner, Richard N. 2002. An automated technique for monitoring nocturnal avian vocalizations.
- Saenz, Daniel; Conner, Richard N.; McCormick, James R. 2002. Are pileated woodpeckers attracted to red-cockaded woodpecker cavity trees?.
- Conner, Richard N.; Shackelford, Clifford E.; Schaefer, Richard R.; Saenz, Daniel; Rudolph, D. Craig. 2002. Avian community response to southern pine ecosystem restoration for red-cockaded woodpeckers.
- Conner, Richard N.; Saenz, Daniel; Rudolph, D. Craig; Schaefer, Richard R. 2002. Does the availability of artificial cavities affect cavity excavation rates in red-cockaded woodpeckers?.
- Saenz, Daniel; Baum, Kristen A.; Conner, Richard N.; Rudolph, D. Craig; Costa, Ralph. 2002. Large-scale translocation strategies for reintroducing red-cockaded woodpeckers.
- Rudolph, D. Craig; Burgdorf, Shirley J.; Conner, Richard N.; Collins, Christopher S.; Saenz, Daniel; Schaefer, Richard R.; Trees, Toni; Duran, C. Michael; Ealy, Marc; Himes, John G. 2002. Prey handling and diet of Louisiana pine snakes (Pituophis ruthveni) and black pine snakes (P. melanoleucus lodingi), with comparisons to other selected colubrid snakes.
- Conner, Richard N.; McCormick, James M.; Schaefer, Richard R.; Saenz, Daniel; Rudolph, D. Craig. 2001. A red-cockaded woodpecker group with two simultaneous nest trees.
- Conner, Richard N.; Saenz, Daniel; McCormick, James R. 2001. An unusually large number of eggs laid by a breeding red-cockaded woodpecker female.
- Conner, Richard N.; Saenz, Daniel; Rudolph, D. Craig; Ross, William G.; Kulhavy, David L. 1998. Red-cockaded woodpecker nest-cavity selection: relationships with cavity age and resin production.
- Conner, Richard N.; Rudolph, D. Craig; Schaefer, Richard R.; Saenz, Daniel. 1997. Long-distance dispersal of Red-cockaded Woodpeckers in Texas.
Research Highlights
- Even Small Roads Can Have a Big Impact (2016)
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Roads may be the single biggest driver of amphibian and reptile population declines and habitat loss in Neotropical rainforests.
- Invasive Chinese Tallow Reduces Hatching of Frog Eggs (2012)
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Decomposing leaf litter reduces hatching of southern leopard frog eggs by lowering the pH and concentration of dissolved oxygen in the water
- It’s the City Life for Me! Spring Peepers in Urban Areas have Lower Rates of Fungal Infection (2015)
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The spring peeper (Pseudacris crucifer) is a small frog widespread throughout the eastern U.S. and Canada. A Forest Service study reports that spring peepers in urban areas had significantly lower rates of a fungal infection than peepers from forested sites.