Problem
Eggshell thinning
Nature:
Eggs of wild birds show a negative correlation between shell thickness and residues of DDT and DDE. Eggs with thinner shells break more frequently, resulting in fewer young. The problem is particularly acute for predatory birds at the top of food chains because the body concentration of pesticides concentrates more in the bodies of each successive consumer in the chain.
Aggravates:
Threatened species of predatory birds Strategies:
Using chlorine-free paper Subject(s):
Birds, Mammals → BirdsIndustry → Animal products
Related UN Sustainable Development Goals:
Problem Type:
E: Emanations of other problems Date of last update
04.10.2020 – 22:48 CEST