STABLE ISOTOPES IN ANIMAL ECOLOGY: ASSUMPTIONS, CAVEATS, AND A CALL FOR MORE LABORATORY EXPERIMENTS

10.1007/BF00377062

10.1007/BF00627734

10.1007/BF00388065

10.1007/BF00540196

10.1007/BF01920242

10.1126/science.216.4550.1131

10.1086/203018

G. D. DelGiudice, 1995 .Assessing winter nutritional restriction of northern deer with urine in snow: considerations, potential, and limitation., Wildlife Society Bulletin,23:687 -693 .

M. J. DeNiro, 1987 .Stable isotopes and archaeology., American Scientist,75:182 -191 .

10.1126/science.327543

10.1016/0016-7037(81)90244-1

10.1146/annurev.es.24.110193.002211

10.1146/annurev.pp.40.060189.002443

J. S. Fisler, E. J. Drenick, D. E. Blumfeld, and M. E. Swendseid .1982 .Nitrogen economy during very low calorie and very low protein diets., American Journal of Clinical Nutrition,35:471 -486 .

10.1007/BF00317304

B. Fry, 1983 .Natural stable carbon isotope tag traces Texas shrimp migration., Fishery Bulletin,79:337 -345 .

10.2307/2389263

10.1111/j.1365-3040.1992.tb01655.x

10.1111/j.1365-3040.1992.tb01650.x

10.2307/2389562

10.1016/0305-4403(91)90066-X

10.1139/z87-187

10.2307/1369183

10.2307/1369361

10.2307/1368807

T. R. Houpt, 1963 .Urea utilization by rabbits fed a low-protein ration., American Journal of Physiology,205:1144 -1150 .

T. R. Houpt, and K. A. Houpt .1968 .Nitrogen conservation by ponies fed a low-protein diet., American Journal of Veterinarian Research,32:579 -588 .

T. R. Houpt, and K. A. Houpt .1971 .Transfer of urea nitrogen across the rumen wall., American Journal of Physiology,214:1296 -1303 .

10.1126/science.267.5202.1340

10.1016/0009-2541(87)90196-3

10.1016/0022-0981(82)90028-4

10.1079/PNS19790011

10.1016/0044-8486(89)90441-9

10.1016/0016-7037(84)90204-7

10.1016/0016-7037(82)90241-1

D. M. Schell, S. M. Saupe, and N. Haubenstock .1989 .Natural isotope abundances in bowhead whale (Balaena mysticetus) baleen: markers of aging and habitat use., Ecological Studies,68:260 -269 .

10.1016/0305-4403(91)90065-W

10.1017/S002185960004853X

10.1007/BF00379558

10.2307/278984