GEOG 256 10 10 13 Lecture 10 Outline of Last Lecture I Cities and Water Quality II Point and Non Point Pollution III Urban Planning Strategies for Protecting Ground Water IV Hydrology Outline of Current Lecture I Why care about wildlife conservation II Pima County Buffer overlay zone Current Lecture I II Why care about wildlife conservation a Ecosystem services pollination germination seed dispersal soil generation nutrient cycling pest control i Global economic value of insect pollination alone is more than 200 billion equivalent to 10 of world food output b Genetic Storehouse for medicine Agriculture i Waxy money frog secretions may treat 70 diseases c How urbanization affects wildlife i Habitat loss or degradation 1 Removal of food cover water nesting sites 2 Degradation around homes non native plant invasions alteration of natural ground cover ii Habitat fragmentation 1 Reduces dispersal and repopulation 2 Increases risk of extinction from catastrophic disturbances 3 Increases edge effects iii Alteration of ecological processes 1 Fire suppression and flood control can alter plant composition and related wildlife iv Predation v Pollution 1 Noise chemicals nutrients can harm sensitive species like amphibians Pima County Buffer overlay zone These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute a Purposes protect preserves provide ecologically sound transition includes state national county parks refugees b Underlying uses are permitted c No fences or walls may impede wildlife movement d No structure parking driveway or road within 150 300 feet e Key strategies to accommodate wildlife i Link the patches with corridors linkages