Manatees love to hang out in mangrove forsets As well as fish invertabrits etc

Manatees love to hang out in mangrove forsets as well

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Manatees love to hang out in mangrove forsets As well as fish, invertabrits etc Great to hide, safe area for bredding Calm,still, warm, marine area Estuaries and Salt Marshes Estuaries are bays where rivers empty into the sea, mixing fresh water with salt water. Salt marshes, shallow wetlands flooded regularly or occasionally with seawter, occur on shallow coastlines including estuaries half fresh, half salt
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Lots of edge effects going on Not an ideal habitat The river opens up like a triangle into salt marshes and wet lands It is where all the bayous are Triangle means delta The wet- lands for the bay Whatever runoff from pollutants filter through salt marsh before the bay The bay is where a bunch of ocean animals go to mate If the bays are polluted it can hurt ocean populations. Houses are built on bays/ marshland hurt ecosystems and are unstable Tide pools are depressions in a rocky shoreline that are flooded at high tide, but retain some water at low tide More on the west coast Usually slow mocing or sesile Anemonies, hydras, sea cucumbers, coral, sea stars Sea stars are carnivores If a leg gets cut off multiple grow back Animals that spend half their day in cold, warm and no water must be tough Birds are a threat to tidepool animals Fresh water lakes Lakes are so big that huge 50,000 ton boats can sink Wetlands are described by their vegetation Swamps- are wetlands with trees Marshed- wetlands without trees Bogs- are areas of water saturated ground usually composed of deep layers of undecayed vegetation known as peat. Biggest swamp is the florida everglades Swamps are at the edge of rivers Marshes are the edge of lakes Lot of bogs in ireland and are used to burn for fire places and energy source
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Streams and rivers Streams form wherever precipitation exceeds evaporation and surplus water drains from land As streams collect water and merge they from rivers that flow to the ocean A noxic- no oxygen, no life Parts of the gulf of mexico are Anoxic due to mississippi run off Biodiversity- The variety of living things Three kinds of biodiversity are essential to preserve ecological systems and functions: Genetic Diversity- Is a measure of the variety of versions of the same genes within individual species. Species diversity- describes the number of different kind of organisims within a comminity of ecosystem Ecological diversity (trophic biodiversity) refers to the richness and complexity if a biological community. Directional selection is when the enviorment and one type of gene prevails in a specieis eg skinny beak Haplotypes are types of dna within a species Exam one info What threatens biodiversity: Extinction- losing a species (happens every day) 99% of all species to ever exist are now extinct Human impact accelerates extinction Four mass extinctions HIPPO Between A.D. 1600 and 1850, human activities appear to have eliminated two or three species per decade Habitat Destruction is usually the main threat The most important extinction threat for most species- especially terrestrial ones-is habitat loss Over the past 10,000 years humans have transfromed billions of hectares of former forests and
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