Christopher M. Schalk
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Publications

* = Undergraduate student, ^ = Graduate student

Kays, R. et al. (76th of 152 authors). In review. SNAPSHOT USA 2020: A second coordinated national camera trap survey of the United States during the COVID-19 Pandemic. Ecology.

Adams, C.S.^, D. Saenz, S.J. Mullin, K.R. Kidd, C.M. Schalk. In review. The influence of forest management on the snakes in forest food webs. Herpetological Monographs.


McInnerney, C.^, C.E. Comer, B.P Oswald, C.M. Schalk, R. Masse. In review. Nest site selection and nesting success of Dickcissel and Painted Bunting in restored post oak savanna in East Texas. Journal of Field Ornithology.

Luhring, T.M., L. Wszola^, G. Connette, C.M. Schalk. In review. Droughts reduce growth and increase demographic vulnerability to drying events for an ectotherm with size-dependent estivation ability. Scientific Reports. 

Arnett, J.M.*, C.S. Adams^, C.G. Montaña, C.M. Schalk. In review. Mediterranean house geckos (Hemidactylus turcicus) exploit novel resources in a recipient lizard assemblage. Urban Ecosystems.

Schalk, C.M., H.A. Hester*, D. Saenz. In review. Advertisement calls for eleven anuran species from the Gran Chaco of Bolivia. Cuadernos de Herpetologia.

Schalk, C.M., C.G. Montaña,  L.A. Fitzgerald. In review. Species packing, functional traits, and community organization of tropical frogs. Oecologia.

Adams, C.S.^, D. Saenz, K.R. Kidd, C.M. Schalk. In press. Disparate patterns of taxonomic and functional predator diversity under different forest management regimes. Ecological Indicators.

Schalk, C.M., Y.H. Weng, C.S. Adams^, D. Saenz. In press. Spatiotemporal patterns of snake captures and activity in upland pine forests. The American Midland Naturalist. ​

Montaña, C.G., F.W. Keppeler, C.P. Laughrey*, C.M. Schalk. 2021. Community assembly within ponds: The role of space, time, and environmental gradients. Aquatic Ecology. doi: 10.1007/s10452-021-09902-0. 

Montaña, C.G., E. Liverpool, D.C. Taphorn, C.M. Schalk. 2021. The cost of gold: mercury contamination of fishes in a Neotropical river food web. Neotropical Ichthyology. 19. doi: 10.1590/1982-0224-2020-0155.

McInnerney, C.^, C.E. Comer, B.P Oswald, R. Masse, C.M. Schalk. 2021. Avian responses to post oak savannah restoration in eastern Texas. Journal of Fish and Wildlife Management. 12:61-69. doi: 10.3996/JFWM-20-028. PDF

Cove, M.V. et al. (75th of 150 authors). 2021. SNAPSHOT USA 2019: the first coordinated national camera trap survey of the United States. Ecology. 102:e03353. doi: 10.1002/ecy.3353

Saenz, D., K.A. Baum, L.A. Fitzgerald, C.M. Schalk. 2020. ​Refining the activity level-predation risk paradigm in larval anuran communities. Aquatic Sciences. 83:4. doi: 10.1007/s00027-020-00752-w.

Ward, K.J.*, K.L. Jobe*, N.C. Schiwitz*, D. Saenz, C.M Schalk. 2020. The diversity of erosion control products and implications for wildlife entanglement. Journal of Soil and Water Conservation. 75:82A-87A. doi: 10.2489/jswc.2020.1118A. PDF

Ward, K.J.*, K.L. Jobe*, N.C. Schiwitz*, D. Saenz, C.M Schalk. 2020. Risk of snake entanglement is affected by installation method of erosion control blankets. Journal of Fish and Wildlife Management. 11:273-278. doi: 10.3996/102019-JFWM-087. PDF

Schiwitz, N.C.*, C.M. Schalk, D. Saenz. 2020. The activity level-predation risk tradeoff in a tadpole guild: Implications for community organization along the hydroperiod gradient. The American Midland Naturalist. 183:223-232. doi: 10.1637/0003-0031-183.2.223. PDF

Jobe, K.L.*, C.G. Montaña, C.M Schalk. 2019. Emergent patterns between salamander prey and their predators. Food Webs. e00128. doi: 10.1016/j.fooweb.2019.e00128.

Montaña, C.G., S. Silva^, D. Hagyari^, J. Wager*, L. Tiegs^, C. Sadeghian^, T.A. Schriever, C.M. Schalk. 2019. Revisiting ‘What do tadpoles really eat?’: A ten-year perspective. Freshwater Biology. 64: 2269-2282. doi: 10.1111/fwb.13397.

Lutterschmidt, W.I., J.M. Weidler^, C.M. Schalk. 2019. Hot moments and hot spots in the bayou: Spatiotemporal patterns of road occurrence in a snake assemblage in Louisiana, USA. Herpetological Conservation and Biology. 15:533-545. PDF

Ebert, S.E.*, K.L. Jobe*, C.M. Schalk, D. Saenz, C.K. Adams, C.E. Comer. 2019. Correlates of snake entanglement in erosion control blankets. Wildlife Society Bulletin. 43:231-237. doi: 10.1002/wsb.963. Highlighted by The Wildlife Society and Herpetological Review. Recognized as one of the The Wildlife Society's Top Ten Wildlife Stories of 2019.

Matich, P., C.M. Schalk. 2019. Move it or lose it: interspecific variation in risk response of pond-breeding anurans. PeerJ. doi: 10.7717/peerj.6956. PDF

Kulhavy, D.L., C.M. Schalk, R.A. Viegut*, D.R. Unger, S.W. Shockley*, I. Hung. 2019. Using unmanned aircraft systems (UAS) to quantify mistletoe in urban environments. Urban Naturalist. 20:1-10. PDF
​
Schalk, C.M., M.V. Cove. 2018. Squamates as prey: Predator diversity patterns and predator-prey size relationships. Food Webs.
e00103. doi: 10.1016/j.fooweb.2018.e00103.

Schalk, C.M., C.G. Montaña, K. Kralman*, D.J. Leavitt. 2018. Functional distance and establishment of non-native species with complex life cycles. Biological Invasions. 20:1945-1952. doi: 10.1007/s10530-018-1678-3. PDF

Montaña, C.G., C.M. Schalk. 2018. Correlates of elemental-isotopic composition of stream fishes: The importance of land-use, species identity, and body size. Journal of Fish Biology. 92:944-960. doi: 10.1111/jfb.13554.

Schalk, C.M., T. Trees, J.B. Pierce, D.C. Rudolph. 2018. Food habits of sympatric pitvipers of the West Gulf Coastal Plain, USA. Herpetological Review. 49:1-5. PDF

Leavitt, D.J., C.M. Schalk. 2018. Functional perspectives on the dynamics of desert lizard assemblages. Journal of Arid Environments. 150: 34-41. doi: 10.1016/j.jaridenv.2017.11.014. PDF

Ceneviva-Bastos, M.,  C.G. Montaña, C.M. Schalk, L. Casatti, P.B. Carmargo. 2017. Responses of aquatic food webs to the addition of structural complexity and basal resource diversity in degraded Neotropical streams. Austral Ecology. 42:908-919. doi: 10.1111/aec.12518. PDF

Schalk, C.M., C.G. Montaña, K.O. Winemiller, L.A. Fitzgerald. 2017. Trophic plasticity, environmental gradients, and food-web structure of tropical pond communities. Freshwater Biology. 62:519-529. doi: 10.1111/fwb.12882​. PDF

Sosa, R.*, C.M. Schalk. 2016. Seasonal activity and species habitat guilds influence road–kill patterns of Neotropical snakes. Tropical Conservation Science. 9:1-12. doi: 10.1177/1940082916679662
. PDF

Schalk, C.M. 2016. Predator-induced phenotypic plasticity in an arid-adapted tropical tadpole. Austral Ecology.  41:415-422.  doi: 10.1111/aec.12327. PDF

Luhring, T.M., G.M. Connette, C.M. Schalk. 2016. Trap characteristics and species morphology explain size-biased sampling of two salamander species. Amphibia-Reptilia. 37:79-89.  doi: 10.1163/15685381-00003034

Schalk, C.M., D. Saenz. 2016.  Environmental drivers of anuran calling phenology in a seasonal Neotropical ecosystem. Austral Ecology. 41:16-27. doi: 
10.1111/aec.12281. PDF  Cover Image

Layman, C.A., S.T. Giery, S. Buhler, R. Rossi, C.G. Montaña, T. Penland, M.N. Henson, A.K. Bogdanoff, M.V. Cove, A.D. Irizarry, C.M. Schalk, S.K. Archer. 2015. A primer on the history of food web ecology: Fundamental contributions of fourteen researchers. Food Webs. 4:14-24. doi: 
10.1016/j.fooweb.2015.07.001. PDF

Schalk, C.M., C.G. Montaña, L.E. Springer*. 2015. Morphological diversity and community organization of desert anurans. Journal of Arid Environments. 122:132-140. doi: 10.1016/j.jaridenv.2015.06.019
. PDF

Schalk, C.M., L.A. Fitzgerald. 2015. Ontogenetic shifts in ambush site selection of a sit-and-wait predator, the Chacoan Horned Frog (Ceratophrys cranwelli). Canadian Journal of Zoology. 93:461-467. doi:
10.1139/cjz-2014-0320. PDF

Schalk, C.M., C.G. Montaña, J.L. Klemish, E.R. Wild. 2014. On the diet of the frogs of the Ceratophryidae: Synopsis and new contributions. South American Journal of Herpetology. 9:90-105. doi:
10.2994/SAJH-D-14-00008.1. PDF

Schalk, C.M., M. Sezano*. 2014. Observations on the use of tarantula burrows by the anurans Leptodactylus bufonius (Leptodactylidae) and Rhinella major (Bufonidae) in the Dry Chaco ecoregion of Bolivia. Acta Herpetologica. 9:99-102 doi: 10.13128/Acta_Herpetol-13606. PDF

Schalk, C.M., C.G. Montaña, M. Libson*. 2014. Reproductive strategies of two Neotropical killifish, Austrolebias vandenbergi and Neofundulus ornatipinnis (Cyprinodontiformes: Rivulidae) in the Bolivian Gran Chaco. Revista de Biologia Tropical. 62:109-117. PDF

Schalk, C.M., M. Senzano*, R.L. Cuellar. 2013. Inventory of the amphibians and reptiles from a locality in the Kaa-Iya of the Gran Chaco National Park, Bolivia. Kempffiana. 9:26-33. PDF

Montaña, C.G., C.M. Schalk, D.C. Taphorn. 2012. First record of Van den Berg's Pearlfish, Austrolebias vandenbergi Huber, 1995 (Cyprinodontiformes: Rivulidae) in Bolivia with comments on its diet and reproductive biology. Check List. 8:589-591. doi: 
10.15560/8.3.589. PDF

Patrick, D.A., C.M. Schalk, J.P. Gibbs, H.W. Woltz. 2010. Effective culvert placement and design to facilitate passage of amphibians across roads. Journal of Herpetology. 44:618-626. doi: 
10.1670/09-094.1. PDF

Schalk, C.M., T.M. Luhring, B.A. Crawford. 2010. Summer microhabitat use of the greater siren (Siren lacertina) and two-toed amphiuma (Amphiuma means) in an isolated wetland. Amphibia-Reptilia. 31:251-256. doi:
10.1163/156853810791069155. PDF

Schalk, C.M., T.M. Luhring. 2010. Vagility of aquatic salamanders: implications for wetland connectivity. Journal of Herpetology. 44:104-109. doi: 10.1670/08-312.1
.  PDF

Notes and Species Accounts

* = Undergraduate student, ^ = Graduate student

Baxter-Bray, W.S*., B.C. Bowers^, C.S. Adams, C.G.R. Salter,* J.A. Lara*, C.M. Schalk. In review. Amphibian and reptile county records from the pineywoods of northeast Texas, USA. Herpetological Review.

Schalk, C.M.
, R.L. Antoniazzi, D. Rosenbaum^, J.M. Arnett, A. Pelletier, C.S. Adams, W. Baxter-Bray*. In press. Amphiuma tridactylum (Three-toed Amphiuma) Geographic Distribution. Herpetological Review.

Garcia, N.*, C.M. Schalk. 2020. Incilius nebulifer (Gulf Coast Toad). Polymelia. Herpetological Review. 51:99. PDF

Thompson, D.W.*, C.S. Adams^, C.M Schalk. 2020. Farancia abacura (Red-bellied Mudsnake) Overland Movement. Herpetological Review. 51:142-143. PDF


Childress, J., C.K. Adams, D. Saenz, C.M. Schalk. 2019. Bronze Frog (Lithobates clamitans) entanglement and mortality in an erosion control blanket. Collinsorum. 8:11-12. PDF

Koenig, J.R*, K.L. Jobe*, S.E. Ebert*, C.S. Adams^, C.M. Schalk. 2019. Liodytes rigida (Glossy Swampsnake). Geographic Distribution. Herpetological Review. 50:530-531. PDF

Sosa, R., M. Senzano, C.M. Schalk. 2019. Micrurus pyrrhocryptus. Feeding Habits. Herpetological Review. 50:518-519. PDF

Daza, J.D., L. Price, C.M. Schalk, A.M. Bauer, A.R. Borman, J.K. Peterhans. 2017. Predation on Southern Turnip-tailed geckos (Thecadactylus solimoensis) by a Spectacled Owl (Pulsatrix perspicillata). Cuadernos de Herpetología. 31:37-39. PDF

Schalk, C.M., D.J. Leavitt. 2017. Leptodactylus bufonius. Catalogue of American Amphibians and Reptiles. 905:1-22.  PDF

Springer, L.E.*, C.M. Schalk. 2016. Lepidobatrachus laevis.  Catalogue of American Amphibians and Reptiles. 904:1-16. PDF
​
Schalk, C.M. 2016. Rhinella major and Rhinella schneideri (Granular and Rococo Toad). Reproductive Behavior. Herpetological Review. 47:120-121. PDF

Schalk, C.M. 2015. Physalaemus nattereri (Cuyaba Dwarf Frog). Tadpole Diet. Herpetological Review. 46:613-614. PDF

Sosa, R.*, C.M. Schalk, L. Braga*, J.N. Pinto-Ledezema. 2015. Rhinella amboroensis. Geographic Distribution. Herpetological Review. 46: 214. PDF

Sosa, R.*, C.M. Schalk, L. Braga*, A.M. Langer. 2015. Apostolepis multicincta. Diet. Herpetological Review. 46:99. PDF

Romano, T.J.*, D.J. Leavitt, C.M. Schalk, D.E. Dittmer, L.A. Fitzgerald. 2014. Vertebrate by-catch of pipeline trenches in the Mescalero-Monahans shinnery sands of southeastern New Mexico. The Prairie Naturalist. 46:95-96. PDF

Montaña, C.G., M. Ceneviva-Bastos, C.M. Schalk. 2014. New vertebrate prey for the aquatic salamander Amphiuma means (Caudata: Amphiumidae). Herpetology Notes. 7:755-756. PDF

Senzano, M.*, C.M. Schalk. 2013. Leptodactylus bufonius (Oven Frog) Predation. Herpetological Review. 44:293-294. PDF

Schalk, C.M., D. Ticona*. 2013. Rhinella schneideri (Rococo Toad) Breeding Site. Herpetological Review. 44:299-300. PDF

Sosa, R.*, L. Braga*, C.M. Schalk, J.N. Pinto-Ledezma. 2013. Micrurus serranus (Coral Verdadera) Diet. Herpetological Review. 44:155. PDF

Sosa, R.*, L. Braga*, C.M. Schalk, J.N. Pinto-Ledezma. 2013. Philodryas psammophidea (Günther's green racer) Diet. The Herpetological Bulletin. 124:24. PDF
​
Sosa, R., L. Braga*, C.M. Schalk, J.N. Pinto-Ledezma. 2012. Clelia langeri Diet. Herpetological Review 43:657. PDF

Schalk, C.M. 2012. Pleurodema guayapae. Egg Predation. Herpetological Review. 43:635. PDF

Schalk, C.M., F. Morales*. 2012. Predation of a Rhinella major (Anura: Bufonidae) by a Pampas Fox (Lycalopex gymnocercus) in the Bolivian Gran Chaco. Herpetology Notes. 5:369-370. PDF

Schalk, C.M., C.G. Montaña. 2012. Liophis poecilogyrus (Yellow-bellied Liophis) Diet and Foraging Behavior. Herpetological Review. 43:148. PDF

Schalk, C.M. 2012. Physalemus biligonigerus (NCN) Burrow Use. Herpetological Review. 43:123-124. PDF

Acre, M.R., D.J. Leavitt,  C.M. Schalk. 2012. A patternless morph of the marbled whiptail (Aspidoscelis marmorata; Squamata: Teiidae) in New Mexico. Southwestern Naturalist. 57:206-207. PDF

Schalk, C.M., C.G. Montaña. 2011. Ceratophrys cranwelli (Cranwell’s Horned Frog) Diet. Herpetological Review. 42:409-410. PDF

Schalk, C.M. 2010. Ceratophrys cranwelli (Cranwell's Horned Frog) Diet. Herpetological Review. 41:471. PDF

Schalk, C.M. 2010. Philodryas mattogrossensis (Two-colored Racer) Diet. Herpetological Review. 41:372. PDF

Schalk, C.M. 2010. Liophis peocilogyrus (Yellow-bellied Liophis) Diet. Herpetological Review. 41:366-367. PDF

Schalk, C.M. 2010. Physalaemus biligonigerus (NCN) Predation. Herpetological Review. 41:202. PDF

Schalk, C.M., B.A. Crawford, T.M. Luhring. 2009. A note on predation of the Greater Siren (Siren lacertina). Bulletin of the Chicago Herpetological Society. 44:56. PDF

Other Publications

Schalk, C.M., M.A. Kwiatkowski, D. Saenz, S.J. Mullin. 2018. Herpetology at Stephen F. Austin State University. Herpetological Review. 49: 779-781. PDF
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