NATS 4205 Lecture Notes - Lecture 3: Ground Beetle, Bioindicator, Geometer Moth

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Environment indicators: detect(in moment) & monitor (long-term) changes in state. Ecological indicators: demonstrate impact of stressor (pollutant) & monitor long term stressor-induced changes in biota. Biodiversity indicators: identify diversity (taxa in speci ed areas) & monitor changes in biodiversity over time. Space-time scales: single event (stressor) = measure species diversity, long-term indicators in changes over years, long-term changes in climate/global warming, etc. Cost e cient & e ective: time (3-5 years at most) funds, personnel. Abundant: don"t want to use/kill rare species for study. Storage: ease & reliability of storage; voucher specimens. Easy taxonomy: well-know group, easy to identify, taxonomist expertise available. Ground beetle (green): predators; bioindicators for terrestrial ecosystems (study impact for pollution, etc. ) Ground beetle larva (under beetle): underground predator. Aquatic midges (family of ies): used to monitor fresh water quality. Aquatic larva (under y image): monitor fresh water, live inside water, changes cause problems during development, declining numbers = determine water quality.

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