Publications
* = Undergraduate student, ^ = Graduate student
Montaña, C.G., S. Silva^, D. Hagyari^, J. Wager*, L. Tiegs^, C. Sadeghian^, T.A. Schriever, C.M. Schalk. In review. Revisiting ‘What do tadpoles really eat?’: A ten-year perspective. Freshwater Biology.
Schalk, C.M., C.G. Montaña, L.A. Fitzgerald. In review. Species packing, functional traits, and community organization of tropical frogs. Oecologia.
Lutterschmidt, W.I., J.M. Weidler^, C.M. Schalk. In press. Hot moments and hot spots in the bayou: Spatiotemporal patterns of road occurrence in a Louisiana snake assemblage. Herpetological Conservation and Biology.
Matich, P., C.M. Schalk. In press. Move it or lose it: interspecific variation in risk response of pond-breeding anurans. PeerJ.
Ebert, S.E.*, K.L. Jobe*, C.M. Schalk, D. Saenz, C.K. Adams, C.E.Comer. In press. Correlates of snake entanglement in erosion control blankets. Wildlife Society Bulletin.
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: https://doi.org/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: https://doi.org/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. 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. 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. 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. 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. 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. 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. 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. 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. 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. PDF
Schalk, C.M., T.M. Luhring. 2010. Vagility of aquatic salamanders: implications for wetland connectivity. Journal of Herpetology. 44:104-109. PDF
Montaña, C.G., S. Silva^, D. Hagyari^, J. Wager*, L. Tiegs^, C. Sadeghian^, T.A. Schriever, C.M. Schalk. In review. Revisiting ‘What do tadpoles really eat?’: A ten-year perspective. Freshwater Biology.
Schalk, C.M., C.G. Montaña, L.A. Fitzgerald. In review. Species packing, functional traits, and community organization of tropical frogs. Oecologia.
Lutterschmidt, W.I., J.M. Weidler^, C.M. Schalk. In press. Hot moments and hot spots in the bayou: Spatiotemporal patterns of road occurrence in a Louisiana snake assemblage. Herpetological Conservation and Biology.
Matich, P., C.M. Schalk. In press. Move it or lose it: interspecific variation in risk response of pond-breeding anurans. PeerJ.
Ebert, S.E.*, K.L. Jobe*, C.M. Schalk, D. Saenz, C.K. Adams, C.E.Comer. In press. Correlates of snake entanglement in erosion control blankets. Wildlife Society Bulletin.
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: https://doi.org/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: https://doi.org/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. 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. 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. 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. 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. 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. 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. 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. 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. 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. PDF
Schalk, C.M., T.M. Luhring. 2010. Vagility of aquatic salamanders: implications for wetland connectivity. Journal of Herpetology. 44:104-109. PDF
Notes and Species Accounts
* = Undergraduate student
Garcia, N.*, C.M. Schalk. In review. Incilius nebulifer (Gulf Coast Toad). Polymelia. Herpetological Review.
Sosa, R., M. Senzano, C.M. Schalk. In review. Micrurus pyrrhocryptus. Feeding Habits. Herpetological Review.
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 Mescalaro-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
Garcia, N.*, C.M. Schalk. In review. Incilius nebulifer (Gulf Coast Toad). Polymelia. Herpetological Review.
Sosa, R., M. Senzano, C.M. Schalk. In review. Micrurus pyrrhocryptus. Feeding Habits. Herpetological Review.
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 Mescalaro-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
