* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Environmental Changes Cornell Notes
Survey
Document related concepts
Politics of global warming wikipedia , lookup
Climate change feedback wikipedia , lookup
Instrumental temperature record wikipedia , lookup
Surveys of scientists' views on climate change wikipedia , lookup
Climate change and poverty wikipedia , lookup
Effects of global warming on human health wikipedia , lookup
Attribution of recent climate change wikipedia , lookup
Public opinion on global warming wikipedia , lookup
IPCC Fourth Assessment Report wikipedia , lookup
Climate change, industry and society wikipedia , lookup
Climate change in Saskatchewan wikipedia , lookup
Effects of global warming on Australia wikipedia , lookup
Transcript
Date: Topic/Objective: Environmental Changes and Populations 9/15 Essential Question: How do environmental Changes affect organisms and populations? Questions: What causes environmental change? Happens when natural processes or human activities cause a disturbance to the environment. Natural Processes – climate change and natural disasters. Climate Change Ecological Succession Natural Disasters - Volcanic eruptions, hurricanes, earthquakes, floods, forest fires, etc. Human Activities – development and use of resources. Farming Use of fertilizers and pesticides Dams Logging and construction Roads Commercial fishing Burning of fossil fuels Etc. How can short-term environmental changes affect populations? Short Term Environmental Change – has a sudden impact on populations and their surroundings. This impact may or may not last. - Weather – wind, rain, hail, sleet, snow, extreme temperatures - Natural disturbances – floods, droughts, blizzards, etc. How can long-term environmental changes affect populations? Long Term Environmental Change – occurs slowly and impacts populations over time. - Global Warming – the increase in the average global temperature over the past 30 years. - Sea ice has decreased greatly near the poles. - Increase in ocean water temperature Long-Term Environmental Changes May Affect Organisms’ Behaviors. - Migration patterns - Budding patterns - Flowering or seeding patterns - Organisms that aren’t able to adapt may become extinct. Traits May Become More Common Through Natural Selection: - Inheritable traits can change in response to environmental changes. - Natural Selection – Individuals that are better adapted to the environment are able to survive and reproduce. Populations May Become Physically Separated - Plate Tectonics may separate species over millions of years and natural selection may lead to a new species Summary: