Diseases in nature

Abstract

Wild animals commonly suffer and die from diseases. Disease impacts are worsened by environmental conditions, parasite infestations, and nutritional deficiencies. Animals expend finite energy and may prioritize reproduction over fighting disease, impacting offspring survival. While sickness behaviors such as lethargy conserve energy, they increase vulnerability. Though research methods like infrared imaging and bioacoustics exist, studying disease in smaller, hidden, or marine animals presents challenges. Invertebrates experience bacterial, viral, and fungal infections like Nuclear Polyhedrosis Virus in butterflies, Cricket Paralysis Virus, lobster shell disease, and White Spot Syndrome Virus. Vertebrate diseases like Fibropapillomatosis in sea turtles, avian cholera and malaria, chronic wasting disease, distemper, amphibian skin diseases, and toxic algal blooms also cause significant harm. – AI-generated abstract.