Murray, Philip J.; Clegg, Christopher D.; Crotty, Felicity V.; Martinez, Noelia de la Fuente; Williams, Jennifer K.; Blackshaw, Rod P.
(2009-06)
Feeding relationships between organisms may be determined by observations of behaviour in manipulative experiments or, as in more recent times, by the use of stable isotope labelling to trace the passage of (13)C and (15)N ...