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Inter- and intra-specific dietary overlap in predacious bi-phasic salamanders

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Abstract

When multiple species with similar trophic niches co-occur in an ecosystem, foraging, refuge, and breeding microhabitats are predicted to be partitioned in order to enable their coexistence. However, few studies have examined potential niche partitioning among vertebrates with a bi-phasic natural history, such as stream salamanders. In addition to microhabitat, the coexistence of multiple species and life-stages is likely facilitated by the partitioning of diet. As plethodontid stream salamanders have an aquatic larval stage and a semi-aquatic adult stage (i.e., post-metamorphic), the diets of multiple species and life-stages can elucidate patterns in their community structure. Specifically, dietary overlaps can be used to evaluate the level of niche overlap and thus, potential competition among different species and life-stages. In this study, we non-lethally examined the dietary overlap among five predacious aquatic larval and three semi-aquatic adult stream salamander species in southeastern Kentucky. Our data illustrated both inter- and intra-specific dietary overlaps among the stream salamander community. We additionally observed dietary overlaps among all adult salamanders and their larval counterparts. We found differential dietary clustering and separation among some of the species and life-stages. Though not directly tested in this study, our results are suggestive of selection/constraint to species- and life-stage-specific foraging microhabitats.

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Data availability

The datasets generated during and/or analyzed during the current study are available from the corresponding author.

References

  • Anderson, N. H. & D. H. Lehmkuhl, 1968. Catastrophic drift of insects in a woodland stream. Ecology 49: 198–206.

    Google Scholar 

  • Anderson, M. T. & A. Mathis, 1999. Diets of two sympatric neotropical salamanders, Bolitoglossa mexicana and B. rufescens, with notes on reproduction for B. rufescens. Journal of Herpetology 33: 60–607.

    Google Scholar 

  • Anthony, C. D., M. D. Venesky & C. A. M. Hickerson, 2008. Ecological separation in a polymorphic terrestrial salamander. Journal of Animal Ecology 77: 646–653.

    PubMed  Google Scholar 

  • Baird, S. F. & C. Girard, 1852. Descriptions of New Species of Reptiles, Collected by the US Exploring Expedition under the Command of Capt. Charles Wilkes, USN: First Part: Including the Species from the Western Coast of America. Proceedings of the Academy of natural Sciences of Philadelphia.

  • Barbour, R. W. & L. Y. Lancaster, 1946. Food habits of Desmognathus fuscus in Kentucky. Copeia 1946: 48–49.

    Google Scholar 

  • Bardwell, J. H., C. M. Ritzi & J. A. Parkhurst, 2007. Dietary selection among different size classes of larval Ambystoma jeffersonianum (Jefferson Salamanders). Northeastern Naturalist 14: 293–299.

    Google Scholar 

  • Barrett, K., S. T. Samoray, B. S. Helms & C. Guyer, 2012. Southern two-lined salamander diets in urban and forested streams in western Georgia. Southeastern Naturalist 11: 287–296.

    Google Scholar 

  • Bishop, S. C, 1941. Notes on salamanders, with descriptions of several new forms. Occasional Papers of the Museum of Zoology, Number 451. University of Michigan, Ann Arbor, Michigan.

  • Bouton, N., O. Seehausen & J. J. M. Van Alphen, 1997. Resource partitioning among rock-dwelling haplochromines (Pisces: Cichlidae) from Lake Victoria. Ecology of Freshwater Fish 6: 225–240.

    Google Scholar 

  • Bradley, R. A., 2012. Common Spiders of North America, University of California Press, Berkeley:

    Google Scholar 

  • Brändle, M., A. Prinzing, R. Pfeifer & R. Brandl, 2002. Dietary niche breadth for Central European birds: correlations with species-specific traits. Evolutionary Ecology Research 4: 643–657.

    Google Scholar 

  • Brodman, R. & H. D. Krouse, 2007. How blue-spotted and small-mouthed salamander larvae coexist with their unisexual counterparts. Herpetologica 63: 135–143.

    Google Scholar 

  • Brooks, A. J., T. I. M. Haeusler, I. Reinfelds & S. Williams, 2005. Hydraulic microhabitats and the distribution of macroinvertebrate assemblages in riffles. Freshwater Biology 50: 331–344.

    Google Scholar 

  • Bruce, R. C., 1972. The larval life of the red salamander, Pseudotriton ruber. Journal of Herpetology 6: 43–51.

    Google Scholar 

  • Bruce, R. C., 1979. Evolution of paedogenesis in salamanders of the genus Gyrinophilus. Evolution 33: 998–1000.

    PubMed  Google Scholar 

  • Bruce, R. C., 1980. A model of the larval period of the spring salamander, Gyrinophilus porphyriticus, based on size-frequency distributions. Herpetologica 36: 78–86.

    Google Scholar 

  • Burton, T. M., 1976. An analysis of the feeding ecology of the salamanders (Amphibia, Urodela) of the Hubbard brook experimental forest, New Hampshire. Journal of Herpetology 10: 187–204.

    Google Scholar 

  • Caldwell, R. S. & W. C. Houtcooper, 1973. Food habits of larval Eurycea bislineata. Journal of Herpetology 7: 386–388.

    Google Scholar 

  • Camp, C. D. & S. G. Tilley, 2005. Desmognathus monticola (Dunn, 1916) Seal Salamander. In Lannoo, M. J. (ed), Amphibian Declines: The Conservation Status of United States Species. University of California Press, Berkeley.

    Google Scholar 

  • Careddu, G., N. Carlini, A. Romano, L. Rossi, E. Calizza, S. Sporta Caputi & M. L. Costantini, 2020. Diet composition of the Italian crested newt (Triturus carnifex) in structurally different artificial ponds based on stomach contents and stable isotope analyses. Aquatic Conservation: Marine and Freshwater Ecosystems 30: 1505–1520.

    Google Scholar 

  • Carrassón, M. & J. E. Cartes, 2002. Trophic relationships in a Mediterranean deep-sea fish community: partition of food resources, dietary overlap and connections within the benthic boundary layer. Marine Ecology Progress Series 241: 41–55.

    Google Scholar 

  • Cecala, K. K., S. J. Price & M. E. Dorcas, 2007. Diet of larval red salamanders (Pseudotriton ruber) examined using a nonlethal technique. Journal of Herpetology 41: 741–745.

    Google Scholar 

  • Cormier, S. M., G. W. Suter & L. Zheng, 2013. Derivation of a benchmark for freshwater ionic strength. Environmental Toxicology and Chemistry 32: 263–271.

    CAS  PubMed  Google Scholar 

  • Cortés, E., 1997. A critical review of methods of studying fish feeding based on analysis of stomach contents: application to elasmobranch fishes. Canadian Journal of Fisheries and Aquatic Sciences 54: 726–738.

    Google Scholar 

  • Costa, A., S. Salvidio, M. Posillico, G. Matteucci, B. De Cinti & A. Romano, 2015. Generalisation within specialization: inter-individual diet variation in the only specialized salamander in the world. Scientific Reports 5: 1–10.

    Google Scholar 

  • Cudmore, W. W., 2014. Resource partitioning in two stream salamanders, Dicamptodon tenebrosus and Rhyacotriton cascadae, from the Oregon Cascade Mountains. The American Midland Naturalist 172: 191–199.

    Google Scholar 

  • da Silva, G. B., H. G. Hazin, F. H. V. Hazin & T. Vaske Jr., 2019. Diet composition of bigeye tuna (Thunnus obesus) and yellowfin tuna (Thunnus albacares) caught on aggregated schools in the western equatorial Atlantic Ocean. Journal of Applied Ichthyology 35: 1111–1118.

    Google Scholar 

  • Deban, S. M., D. B. Wake & K. Schwenk, 2000. Aquatic feeding in salamanders. In Schwenk, K. (ed), Feeding: form, function and evolution in tetrapod vertebrates Elsevier, Amsterdam: 65–94.

    Google Scholar 

  • Denoël, M. & R. Schabetsberger, 2003. Resource partitioning in two heterochronic populations of Greek Alpine newts, Triturus alpestris veluchiensis. Acta Oecologica 24: 55–64.

    Google Scholar 

  • Di Bitetti, M. S., C. D. De Angelo, Y. E. Di Blanco & A. Paviolo, 2010. Niche partitioning and species coexistence in a Neotropical felid assemblage. Acta Oecologica 36: 403–412.

    Google Scholar 

  • Diamond, J. M., 1975. Assembly of species communities. In Cody, M. L. & J. M. Diamond (eds), Ecology and evolution of communities Harvard University Press, Cambridge: 342–444.

    Google Scholar 

  • Downes, B. J., P. S. Lake & E. S. G. Schreiber, 1995. Habitat structure and invertebrate assemblages on stream stones: a multivariate view from the riffle. Australian Journal of Ecology 20: 502–514.

    Google Scholar 

  • Dunham, A. E., 1983. Realized niche overlap: resource abundance and intensity of interspecific competition. In Huey, R. B., E. R. Pianka & T. Schoener (eds), Lizard Ecology: Studies of a Model Organism Harvard University Press, Cambridge: 261–280.

    Google Scholar 

  • Evans, A. V., 2014. Beetles of Eastern North America, Princeton University Press, Princeton:

    Google Scholar 

  • Fasola, M., 1993. Resource partitioning by three species of newts during their aquatic phase. Ecography 16: 73–81.

    Google Scholar 

  • Fasola, M. & L. Canova, 1992. Feeding habits of Triturus vulgaris, T. cristatus and T. alpestris (Amphibia, Urodela) in the northern Apennines (Italy). Italian Journal of Zoology 59: 273–280.

    Google Scholar 

  • Felice, R. N., J. A. Tobias, A. L. Pigot & A. Goswami, 2019. Dietary niche and the evolution of cranial morphology in birds. Proceedings of the Royal Society B 286: 20182677.

    PubMed  PubMed Central  Google Scholar 

  • Findley, J. S. & H. Black, 1983. Morphological and dietary structuring of a Zambian insectivorous bat community. Ecology 64: 625–630.

    Google Scholar 

  • Finke, D. L. & W. E. Snyder, 2008. Niche partitioning increases resource exploitation by diverse communities. Science 321: 1488–1490.

    CAS  PubMed  Google Scholar 

  • Fisher, B. L. & S. P. Cover, 2007. Ants of North America: a guide to the genera, University of California Press, Berkeley:

    Google Scholar 

  • Folkerts, G.W., 1968. The genus Desmognathus Baird (Amphibia: Plethodontidae) in Alabama. Ph.D. dissertation. Auburn University, Auburn, Alabama.

  • Fox, B. J. & J. H. Brown, 1993. Assembly rules for functional groups in North American desert rodent communities. Oikos 67: 358–370.

    Google Scholar 

  • Fraser, D. F., 1976. Empirical evaluation of the hypothesis of food competition in salamanders of the genus Plethodon. Ecology 57: 459–471.

    Google Scholar 

  • Gascon, D. & W. C. Leggett, 1977. Distribution, abundance, and resource utilization of littoral zone fishes in response to a nutrient/production gradient in Lake Memphremagog. Journal of the Fisheries Board of Canada 34: 1105–1117.

    Google Scholar 

  • Gerking, S. D., 2014. Feeding ecology of fish, Elsevier, Cambridge:

    Google Scholar 

  • Giller, P. S., 1986. Community Structure and the Niche, Chapman and Hall, London:

    Google Scholar 

  • Gladfelter, W. B. & W. S. Johnson, 1983. Feeding niche separation in a guild of tropical reef fishes (Holocentridae). Ecology 64: 552–563.

    Google Scholar 

  • Good, D. A., G. Z. Wurst, D. B. Wake & R. F. Inger, 1987. Patterns of geographic variation in allozymes of the Olympic Salamander, Rhyacotriton olympicus (Caudata, Dicamptodontidae). Field Museum of Natural History. Fieldiana Zoology 32: 1–15.

    Google Scholar 

  • Griffiths, R. A. & V. J. Mylotte, 1987. Microhabitat selection and feeding relations of smooth and warty newts, Triturus vulgaris and T. cristatus, at an upland pond in mid-Wales. Ecography 10: 1–7.

    Google Scholar 

  • Hairston, N. G., 1949. The local distribution and ecology of the plethodontid salamanders of the southern Appalachians. Ecological Monographs 19: 47–73.

    Google Scholar 

  • Hairston, N. G., Sr., 1986. Species packing in Desmognathus salamanders: experimental demonstration of predation and competition. The American Naturalist 127: 266–291.

    Google Scholar 

  • Hairston, N. G., 1987. Community Ecology and Salamander Guilds, Cambridge University Press, London:

    Google Scholar 

  • Hardin, G., 1960. The competitive exclusion principle. Science 131: 1292–1297.

    CAS  PubMed  Google Scholar 

  • Holomuzki, J. R., 1980. Synchronous foraging and dietary overlap of three species of plethodontid salamanders. Herpetologica 1980: 109–115.

    Google Scholar 

  • Horn, H. S., 1966. Measurement of “overlap” in comparative ecological studies. American Naturalist 100: 419–424.

    Google Scholar 

  • Hurlbert, S. H., 1978. The measurement of niche overlap and some relatives. Ecology 59: 67–77.

    Google Scholar 

  • Hutchinson, G. E., 1957. Concluding Remarks. Cold Spring Harbor Symposia on Quantitative Biology 22: 415–427.

    Google Scholar 

  • Hutton, J. M. & T. W. Pierson, 2017. Eurycea Bislineata. Nest guarding. Herpetological Review 48: 826.

    Google Scholar 

  • Hutton, J. M. & S. J. Price, 2018. Eurycea Bislineata Oophagy. Herpetological Review 49: 90–91.

    Google Scholar 

  • Hutton, J. M., S. J. Price & S. C. Richter, 2018. Diet of the Black mountain Salamander (Desmognathus welteri) in Southeastern Kentucky. Herpetological Review 49: 12–19.

    Google Scholar 

  • Hutton, J. M., K. C. Donlon & W. E. Ensign, 2019. Gastric lavage as a non-lethal technique to examine the fall diet of cave Salamanders (Eurycea lucifuga) (Rafinesque, 1822) in Northwest Georgia, USA. Herpetology Notes 12: 35–39.

    Google Scholar 

  • Hutton, J. M., S. J. Price, S. J. Bonner, S. C. Richter & C. D. Barton, 2020. Occupancy and abundance of stream salamanders along a specific conductance gradient. Freshwater Science 39: 433–446.

    Google Scholar 

  • Hutton, J. M., A. D. Macedo, S. C. Richter, R. W. Warne & S. J. Price, 2021a. Does the non-lethal gastric lavage method affect subsequent feeding behavior in adult and larval plethodontid stream Salamanders? Herpetological Review 52: 511–516.

    Google Scholar 

  • Hutton, J. M., S. J. Price, S. C. Richter & C. D. Barton, 2021b. Diet composition: a proximate mechanism explaining stream salamander declines in surface waters with elevated specific conductivity. Global Ecology and Conservation 29: e01719.

    Google Scholar 

  • Jaeger, R. G., 1981. Diet diversity and clutch size of aquatic and terrestrial salamanders. Oecologia 48: 190–193.

    PubMed  Google Scholar 

  • Juterbock, J. E., 1990. Variation in larval growth and metamorphosis in the salamander Desmognathus fuscus. Herpetologica 46: 291–303.

    Google Scholar 

  • Krzysik, A. J., 1979. Resource allocation, coexistence, and the niche structure of a streambank salamander community. Ecological Monographs 49: 173–194.

    Google Scholar 

  • Ligeiro, R., A. S. Melo & M. Callisto, 2010. Spatial scale and the diversity of macroinvertebrates in a Neotropical catchment. Freshwater Biology 55: 424–435.

    Google Scholar 

  • Loveridge, A. J. & D. W. Macdonald, 2003. Niche separation in sympatric jackals (Canis mesomelas and Canis adustus). Journal of Zoology 259: 143–153.

    Google Scholar 

  • Lowe, W. H., K. H. Nislow & G. E. Likens, 2005. Forest structure and stream salamander diets: implications for terrestrial-aquatic connectivity. Internationale Vereinigung Für Theoretische Und Angewandte Limnologie: Verhandlungen 29: 279–286.

    Google Scholar 

  • Lynch, J. F., 1985. The feeding ecology of Aneides flavipunctatus and sympatric plethodontid salamanders in northwestern California. Journal of Herpetology 19: 328–352.

    Google Scholar 

  • Martin, W. H., 1975. The Lilley Cornett Woods: a stable mixed mesophytic forest in Kentucky. Botanical Gazette 136: 171–183.

    Google Scholar 

  • Martin, W. H. & C. Shepherd, 1973. Trees and shrubs of Lilley Cornett Woods, Letcher County, Kentucky. Castanea 38: 327–335.

    Google Scholar 

  • Merritt, R. W. & K. W. Cummins (eds), 1996. An introduction to the aquatic insects of North America. Kendall Hunt, Dubuque.

    Google Scholar 

  • Mitchell, J. C. & J. A. Taylor, 1986. Predator-prey size relationships in a North Carolina population of Plethodon jordani. Journal of Herpetology 20: 562–566.

    Google Scholar 

  • Nakano, S., K. D. Fausch & S. Kitano, 1999. Flexible niche partitioning via a foraging mode shift: a proposed mechanism for coexistence in stream-dwelling charrs. Journal of Animal Ecology 68: 1079–1092.

    Google Scholar 

  • Nowakowski, A. J. & J. C. Maerz, 2009. Estimation of larval stream salamander densities in three proximate streams in the Georgia Piedmont. Journal of Herpetology 43: 503–509.

    Google Scholar 

  • Organ, J. A., 1961. Studies of the local distribution, life history, and population dynamics of the salamander genus Desmognathus in Virginia. Ecological Monographs 31: 89–220.

    Google Scholar 

  • Paluh, D. J., C. Eddy, K. Ivanov, C. A. M. Hickerson & C. D. Anthony, 2015. Selective foraging on ants by a terrestrial polymorphic salamander. The American Midland Naturalist 174: 265–277.

    Google Scholar 

  • Peckarsky, B. L., 1990. Freshwater macroinvertebrates of northeastern North America, Cornell University Press, Ithica:

    Google Scholar 

  • Petranka, J. W., 1998. Salamanders of the United States and Canada, Smithsonian Institution Press, Washington:

    Google Scholar 

  • Petranka, J. W. & S. S. Murray, 2001. Effectiveness of removal sampling for determining salamander density and biomass: a case study in an Appalachian streamside community. Journal of Herpetology 35: 36–44.

    Google Scholar 

  • Petranka, J. W., L. B. Kats & A. Sih, 1987. Predator-prey interactions among fish and larval amphibians: use of chemical cues to detect predatory fish. Animal Behaviour 35: 420–425.

    Google Scholar 

  • Phillippi, M. A. & A. Boebinger, 1986. A vegetational analysis of three small watersheds in Robinson Forest, Eastern Kentucky. Castanea 51: 11–30.

    Google Scholar 

  • Pierson, T. W., B. M. Fitzpatrick & C. D. Camp, 2021. Genetic data reveal fine-scale ecological segregation between larval plethodontid salamanders in replicate contact zones. Evolutionary Ecology 35: 309–322.

    Google Scholar 

  • Pusey, B. J. & S. D. Bradshaw, 1996. Diet and dietary overlap in fishes of temporary waters of southwestern Australia. Ecology of Fresh Water Fish 5: 183–194.

    Google Scholar 

  • Sánchez-Hernández, J., A. Montori & G. A. Llorente, 2019. Ontogenetic dietary shifts and food resource partitioning in a stream-dwelling urodela community: mechanisms to allow coexistence across seasons. Russian Journal of Herpetology 26: 135–149.

    Google Scholar 

  • Sebastiano, S., R. Antonio, O. Fabrizio, O. Dario & M. Roberta, 2012. Different season, different strategies: feeding ecology of two syntopic forest-dwelling salamanders. Acta Oecologica 43: 42–50.

    Google Scholar 

  • Sebens, K. P., 1987. The ecology of indeterminate growth in animals. Annual Review of Ecology and Systematics 18: 371–407.

    Google Scholar 

  • Smith, C. K., 1990. Effects of variation body size on intra-specific competition among larval salamanders. Ecology 71: 1777–1788.

    Google Scholar 

  • Stanford, J. A. & J. V. Ward, 1988. The hyporheic habitat of river ecosystems. Nature 335: 64–66.

    Google Scholar 

  • Stebbins, R. C. & N. W. Cohen, 2021. A Natural History of Amphibians, Princeton University Press:

    Google Scholar 

  • Stewart, K. M., R. T. Bowyer, J. Kie, B. L. Dick & M. Ben-David, 2003. Niche partitioning among mule deer, elk, and cattle: do stable isotopes reflect dietary niche? Ecoscience 10: 297–302.

    Google Scholar 

  • Struecker, B. P., J. R. Milanovich, M. McIntosh, M. B. Berg & M. E. Hopton, 2021. Selective predation by pond-breeding Salamanders in ephemeral wetlands of ohio and illinois. Journal of Herpetology 55: 222–228.

    Google Scholar 

  • Townsend, C. R., 1989. The patch dynamics concept of stream community ecology. Journal of the North American Benthological Society 8: 36–50.

    Google Scholar 

  • Traba, J., M. B. Morales, C. P. Carmona & M. P. Delgado, 2015. Resource partitioning and niche segregation in a steppe bird assemblage. Community Ecology 16: 178–188.

    Google Scholar 

  • Trice, A. E., A. D. Rosemond & J. C. Maerz, 2015. Diet composition of two larval headwater stream salamanders and spatial distribution of prey. Freshwater Biology 60: 2424–2434.

    CAS  Google Scholar 

  • Turner, M. & G. A. Polis, 1979. Patterns of co-existence in a guild of raptorial spiders. The Journal of Animal Ecology 48: 509–520.

    Google Scholar 

  • Vannote, R. L., G. W. Minshall, K. W. Cummins, J. R. Sedell & C. E. Cushing, 1980. The river continuum concept. Canadian Journal of Fisheries and Aquatic Sciences 37: 130–137.

    Google Scholar 

  • Vignoli, L., L. Luiselli & M. A. Bologna, 2009. Dietary patterns and overlap in an amphibian assemblage at a pond in Mediterranean Central Italy. Vie et Milieu/Life & Environment 2009: 47–57.

  • Vignoli, L., A. M. Bissattini & L. Luiselli, 2017. Food partitioning and the evolution of non-randomly structured communities in tailed amphibians: a worldwide systematic review. Biological Journal of the Linnean Society 120: 489–502.

    Google Scholar 

  • Walls, S. C., S. S. Belanger & A. R. Blaustein, 1993. Morphological variation in a larval salamander: dietary induction of plasticity in head shape. Oecologia 96: 162–168.

    PubMed  Google Scholar 

  • Weichert, C. K., 1945. Seasonal variation in the mental gland and reproductive organs of the male Eurycea bislineata. Copeia 1945: 78–84.

    Google Scholar 

  • Wilder, I. W., 1913. The life history of Desmognathus fusca. The Biological Bulletin 24: 251–292.

  • Worischka, S., S. I. Schmidt, C. Hellmann & C. Winkelmann, 2015. Selective predation by benthivorous fish on stream macroinvertebrates–The role of prey traits and prey abundance. Limnologica 52: 41–50.

    Google Scholar 

  • Zerba, K. E. & J. P. Collins, 1992. Spatial heterogeneity and individual variation in diet of an aquatic top predator. Ecology 73: 268–279.

    Google Scholar 

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Acknowledgements

This is contribution number 64 of Lilley Cornett Woods Appalachian Ecological Research Station, Eastern Kentucky University. The Department of Forestry and Natural Resources at the University of Kentucky provided resources, facilities, and permission for usage of Robinson Forest. We thank Dan Dourson for assistance on micro-gastropod identification and John W. Reynolds for assistance with identifying oligochaetes. Lastly, we thank the Division of Natural Areas for facility use and access to Lilley Cornett Woods. Research was performed under the University of Kentucky Institutional Animal Care and Use Committee protocol No. 2012-1054 and Kentucky Department of Fish and Wildlife Resources permit No. SC1.

Funding

Funding for this project was provided by the following organizations: Kentucky Academy of Science (Marcia Athey Grant), Tracy Farmer Institute for Sustainability and the Environment, University of Kentucky (Karri Casner Environmental Sciences Fellowship), Appalachian Center, University of Kentucky (Eller Billings Summer Research Mini-Grant), Division of Natural Areas, Eastern Kentucky University (Grant-in-Aid of Student Research Program), the Society for the Study of Amphibians and Reptiles (Roger Conant Grants in Herpetology Program, Conservation of Amphibians and Reptiles), McIntire-Stennis Research Program (Accession Number 1001968), Foundation for the Conservation of Salamanders (Daniel M. Digiacomo Grant), and the Society of Freshwater Science (Graduate Student Conservation Award).

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  1. Jacob M. Hutton

    Present address: Department of Biological Sciences, Southern Illinois University, Carbondale, IL, 62901, USA

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  1. Department of Forestry and Natural Resources, University of Kentucky, Lexington, KY, 40546, USA

    Jacob M. Hutton & Steven J. Price

  2. Division of Natural Areas and Department of Biological Sciences, Eastern Kentucky University, Richmond, KY, 40475, USA

    Stephen C. Richter

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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by JMH. The first draft of the manuscript was written by JMH and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Hutton, J.M., Richter, S.C. & Price, S.J. Inter- and intra-specific dietary overlap in predacious bi-phasic salamanders. Hydrobiologia 850, 3461–3480 (2023). https://doi.org/10.1007/s10750-023-05161-2

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