Response to Comment: Terrestrial support of pelagic consumers in unproductive lakes : uncertainty and potential in assessments using stable isotopes
The use of stable carbon isotopes (d13C) has played a key role in estimation of the proportion of aquatic consumer biomass derived from terrestrial organic matter (OM; i.e., allochthony; Meili et al. 1996; Grey et al. 2001; Pace et al. 2004). However, the use of d13C for assessing allochthony has shortcomings because of the small natural separation between terrestrial and aquatic isotopic end memb