P. O. Welsh

Mallards (Anas platyrhynchos) and wastewater ponds, Part I: Mallard ducks overwintering at a northern wastewater treatment pond.

C. Paszkowski, K. Tierney, P. O. Welsh, 2017, Ecotoxicology and environmental safety.

Mallards (Anas platyrhynchos) and wastewater ponds, Part II: Developmental, physiological, morphological and behavioural effects of ingestion of secondary clarified effluent water.

C. Paszkowski, S. Nason, D. Barreda, 2017, Ecotoxicology and environmental safety.