BISC 313 Lecture Notes - Lecture 10: Pesticide, Varroa Destructor, Environmental Impact Of Pesticides

• School: Simon Fraser University
• Department: Department of Humanities Biological Sciences
• Course: BISC 313
• Professor: Vicki Marlatt

Document Summary

Case study neonicitinoids part 1: types of structures, chemistry, environmental fate and ecotoxicological impact. In fish and amphibians there are more non-toxic results compared to toxic results. In birds and mammals there are more moderately highly toxic results. Dr. marla decline in bees since 1945 ** test. More than 1/3 of world"s crop production is dependent on bee pollination. Multiple interacting causes of bee decline (4: what are they and explain, 1) pesticides, herbicide use kill off weeds that were pests to us but flower that pollinators eat; Larger monoculture: agricultural food desserts that are dominated by 1-2 crop species, most flowering plants are eliminated, 4) diseases parasites, varroa destructor mite that sucks bee blood and circulates viruses. 4. 5 million down to 2 million bee hives managed. Invertebrates constitutes 80% of earth"s species & 95% of animals are invertebrates. Damian carrington environment editor, the gaurdian: rate of insect extinction is 8x faster than that of mammals, birds, and reptiles.