Appendices

Appendix A: Background (natural abundance) ¹³C and ¹⁵N signatures of primary producers, sediment organic matter (SOM), and marsh suspended particulate organic matter (POM).
Ecological Archives E087-023-A1.

Appendix B: Estimated proportion of Spartina hybrid and other food sources in macrofaunal diets based on natural abundance stable isotope data.
Ecological Archives E087-023-A2.

Appendix C: ¹⁵N signatures of macrofauna exposed to different parts of ¹⁵N-labeled Spartina foliosa in litter bags for 50 days.
Ecological Archives E087-023-A3.

Appendix D: Isotopic signatures of primary producers in a dual isotope labeling experiment shown as a function of time and habitat.
Ecological Archives E087-023-A4.

Appendix E: Percent ¹⁵N derived from labeled hybrid Spartina detritus in experiments conducted in hybrid-Spartina invaded and tidal flat sediments.
Ecological Archives E087-023-A5.

Appendix F: Mean ¹⁵N signatures of macrofauna exposed to ¹⁵N-labeled hybrid Spartina detritus on the surface vs. subsurface in litter bags.
Ecological Archives E087-023-A6.

Appendix G: Mean ¹⁵N signatures of macrofauna exposed to ¹⁵N-labeled hybrid Spartina detritus in tidal flat vs. hybrid sediments for 17-da exposure, surface, 17-da exposure, litter bags, 74-da exposure, surface, and 74-da exposure, litter bags.
Ecological Archives E087-023-A7.

Appendix H: Mean ¹⁵N signatures of macrofauna given as a function of time that they are exposed to ¹⁵N-labeled hybrid Spartina detritus at the sediment surface in tidal flat and hybrid-invaded sites and in subsurface in litterbags at tidal flat and hybrid-invaded sites.
Ecological Archives E087-023-A8.

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