Zoo121-lecture-5

Zoo121-lecture-5 - Structure and function of ecosystems Zoo...

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Structure and function of ecosystems Zoo 121 Lecture #5 9/5/11
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± The Short Tailed Shrew has venomous saliva! ± Its venom is toxic enough to kill a mouse and is used to paralyze insects ± Short tailed shrews are common in Ohio Random Fact of the Day!!
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No Quiz today we’ll be finishing up chapters 3 and 4
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Key Concepts Ecology can be studied on many scales, from single animals to global migrations
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Landscape ± Larger than ecosystems ± Contain patches of several distinct but similar ecosystems ± What ecosystem types can you see here?
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Landscape Ecology ± The study of ecology across multiple interacting ecosystems , encompassing a “landscape” ± if the area is relatively uniform (homogeneous), it’s an ecosystem ± If the area has many distinct patches, It’s a landscape
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Distinct Biomes Are Found throughout the World ± A biome is a group of similar biomes, with similar types of plants and animals ± Determined mostly by local climate Barrow Dawson Konza Prairie Oxford Yuma Belém
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Biome ± Desert is a biome ± There are many types of desert landscape, found on different continents ± But they all have similar climate ± similar types of organisms ± Different species/communities, but
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The amount of sunlight varies in different lattitudes Low angle of incoming sunlight Moderate angle of incoming sunlight Sunlight directly overhead Large amount of sunlight per square mile Small amount of sunlight per square mile North pole
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Global Air Circulation Patterns Affect Rainfall ± Air heated along the equator expands and rises. Warm air can  hold a great deal of moisture, but as it rises and cools the  moisture falls out as rain. ± Areas along the equator receive the most moisture; locations at 
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Zoo121-lecture-5 - Structure and function of ecosystems Zoo...

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