Handout _ 3 Community Ecology

Handout _ 3 Community Ecology - Study Guide 3 J.W Via...

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Study Guide # 3 J.W. Via General Biology Community Ecology 1. Other Aquatic Biomes and Communities Coastal Salt Marshes -Wet prairies adjacent to oceans with high sunlight, abundant salt water, and temperatures moderated by the ocean. Adapted to salt water. Very uniform grasslands with high productivity. High recycling of nutrients, flushed twice daily with tidal movement. Estuaries are where freshwater creeks and rivers reach the ocean and are blended with salt water and daily tides. High in nutrients washed from inland areas and marshes. The are the nurseries of much of the shell fish and sea life. Open oceans -great stability of temperature, and salinity. Most of the nutrients fall to the ocean floor, And are not available, which in part explains the relatively low productivity. Coral Reefs - line the shorelines of many tropical areas. These are the most productive ecosystems, due to shallow clear water which permits sunlight to penetrate, warm temperatures and high nutrients from the shoreline. Productivity is from algae living in coral organisms and independently. Extremely fragile ecosystem. 2. Communities - a subset of the ecosystem which is an assemblage of interacting populations within a defined area. Stable communities which are self reproducing ( with a similar composition of species and numbers are called Climax communities . Climax community species composition is particular to the climatic, physical, and biological factors for any one geographical area, e.g. rainforests all appear much alike, except for composition of plants and animals on different continents.
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