Peregrine falcon eggs collected in the 1960s averaged roughly 15–20% thinner than pre-1947 clutches. That one comparative metric, paired with DDE residue analyses, became the causal risk assessment bridge tying a lipophilic pesticide to population crashes via impaired calcium deposition — got another pollutant-biology clue you like?
lipophilic pesticide to population crashes via impaired calcium deposition — got another Try tributyltin’s imposex in dogwhelks: VDSI jumps at single‑digit ng/L and reverses after the 2008 IMO ban — textbook mechanism-to-population recovery. Caveat: legacy sediments near old shipyards still spike imposex — any harbors in your dataset still stuck high?
My take: I’d lean toward the simplest next step and see if it changes anything this week — if not, you’ve got a clear case to escalate. What would block you from trying that?