FNR 24000 Lecture Notes - Lecture 24: Cestoda, Helminths, Asexual Reproduction

• School: Purdue University
• Department: Forestry and Natural Resources
• Course: FNR 24000
• Professor: Wes Flynn

Document Summary

Any deviation from, or impairment of the normal structure or function of any part, organ, or system of the living animal or plant body. Clinical signs of a disease may be morphological, physical, or behavioral. Morbidity, mortality, reduce growth, malnutrition, developmental, mental, activity level, appearance, etc. Arthropods (ticks, copepods, lice, insects, mites, fleas, etc. ) Several factors can help drive disease -induced extinction. Nearly (cid:1005)/(cid:1007) (cid:894)(cid:1007)(cid:1006)%(cid:895) of the world(cid:859)s a(cid:373)phibia(cid:374)s are threate(cid:374)ed. Disease is a significant driver in many places. Amphibians are host to a diversity of parasites. Most parasites are relatively benign, and the individual can clear the infection or live with it. There are a few parasites that are much more virulent. Linked to mortality events, severe pathology (malformations) or extinctions. Appear to be increasing to prevalence in amphibian populations either locally or globally. Adults: keratin is found throughout the skin. Time to death highly variable (18-28 d) Loss of pigmentation in mouth parts of larvae.