Introductory information:
*File contains stable isotope values of fish and birds that consumed those fish
*PI: Elizabeth Craig, Cornell University, ecc79@cornell.edu
*Data were collected in January 2010
*Study was conducted at Mississippi State, MS
*File was created on 24 September 2015

For methodological information, see: Craig, E., B. Dorr, K. Hanson-Dorr, J. Sparks, and P. Curtis. In press. Isotopic discrimination in the Double-crested Cormorant. PLOS ONE.

Data-specific information:
*Column headings:
1. Sample type: including fish (Ictalurus punctatus) and bird (Phalacrocorax auritus) tissues
2. d15N (mean): mean of δ15N values measured in samples
3. d15N (SD): standard deviation of δ15N values measured in samples
4. d13C (mean): mean of δ13C values measured in samples
5. d13C (SD): standard deviation of δ13C values measured in samples
6. d34S (mean): mean of δ34S values measured in samples
7. d34S (SD): standard deviation of δ34S values measured in samples
8. D15N (mean): mean diet-tissue discrimination factor for N (mean δ15N value in bird tissue - mean δ15N value in fish)
9. D15N (SD): standard deviation of diet-tissue discrimination factor for N (standard deviation of δ15N in bird tissue + standard deviation of δ15N in fish)
10. D13C (mean): mean diet-tissue discrimination factor for C (mean δ13C value in bird tissue - mean δ13C value in fish)
11. D13C (SD): standard deviation of diet-tissue discrimination factor for C (standard deviation of δ13C in bird tissue + standard deviation of δ13C in fish)
12. D34S (mean): mean diet-tissue discrimination factor for S (mean δ34S value in bird tissue - mean δ34S value in fish)
13. D34S (SD): standard deviation of diet-tissue discrimination factor for S (standard deviation of δ34S in bird tissue + standard deviation of δ34S in fish)
*Unit of measurement: permil