Logan S. Billet

Epizootic tipping points: Environmental viral feedbacks predict amphibian die-offs

The paper tracks ranavirus epizootics in wood frog breeding ponds to show that viral accumulation rates, not static host or environmental factors, predict die-offs.

A shared pathogen reservoir can tip widespread infection into mass mortality

The paper develops a compartmental model showing that waterborne viral concentration, not individual host susceptibility, drives mass mortality in infected wood frog populations.