Nutrient Composition of Prey Items Consumed by Free-Ranging Drymarchon couperi (Eastern Indigo Snakes)

Drymarchon couperi (Eastern Indigo Snake) has a threatened conservation status and restricted range in the southeastern US. Evidence suggests it mainly consumes other reptile species. Dietary nutrient analysis is a component of habitat/resource quality and species health assessments, and the results...

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Bibliographic Details
Published in:Southeastern naturalist (Steuben, Me.) Me.), 2015-09, Vol.14 (3), p.551-560
Main Authors: Dierenfeld, Ellen S., Norton, Terry M., Hyslop, Natalie L., Stevenson, Dirk J.
Format: Article
Language:English
Subjects:
calcium
conservation status
copper
diet
Drymarchon
Drymarchon couperi
guidelines
habitats
lipid content
manganese
mineral content
nutrient content
rearing
rodents
snakes
sodium
tortoises
vitamin A
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Summary:Drymarchon couperi (Eastern Indigo Snake) has a threatened conservation status and restricted range in the southeastern US. Evidence suggests it mainly consumes other reptile species. Dietary nutrient analysis is a component of habitat/resource quality and species health assessments, and the results provide guidelines for optimal captive-feeding protocols. Native prey items (7 snakes, 1 tortoise, 1 rodent) had higher protein and lower fat content, considerably higher concentrations of vitamins A and E, and variable mineral content (high Ca, P, Na; low Cu, Mn) compared to the diets of commercially reared and captive-fed rodents. Data suggest that diets for captive snakes may require modification to better duplicate natural food sources. Further investigation of captive diets is warranted to understand possible health implications for wild Indigo Snake populations.
ISSN:1528-7092
1938-5412
DOI:10.1656/058.014.0311