Wie viele Studien brauchst du?
Berny, P., Vilagines, L., Cugnasse, J.-M., Mastain, O., Chollet, J.-Y., Joncour, G., & Razin, M. (2015). VIGILANCE POISON: Illegal poisoning and lead intoxication are the main factors affecting avian scavenger survival in the Pyrenees (France). Ecotoxicology and Environmental Safety, 118, 71-82.
Birkhead, M., 1982. Causes of mortality in the mute swan Cygnus olor on the River Thames. Journal of Zoology, 198(1), pp.15-25.
Butler DA (2005). Incidence of lead shot ingestion in red-legged partridges (Alectoris rufa) in Great Britain. Veterinary Record 157(21), 661-662. Butler DA, Sage RB, Draycott RAH, Carroll JP. Potts D, (2005). Lead exposure in ringnecked pheasants on shooting estates in Great Britain. Wildlife Society Bulletin 33(2), 583-589.
Fisher, I. J., Pain, D. J., & Thomas, V. G. (2006). A review of lead poisoning from ammunition sources in terrestrial birds. Biological conservation, 131(3), 421-432.
Franson, J. C., Sileo, L., Pattee, O. H., & Moore, J. F. (1983). Effects of chronic dietary lead in American kestrels (Falco sparverius). Journal of Wildlife Diseases, 19(2), 110- 113.
Lies mal die und widerlege die Methode und Resultate, dann schicke ich dir die nächsten 10.