Lecture 13 Outline_23Feb2011

Lecture 13 Outline_23Feb2011 - Ecology Outline 17February,...

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Ecology Outline Chapter 9 – 17February, 2010 I. Population = “defined area” = natural boundaries or human convenience Distribution = size, shape and location of the area occupied by a population Distribution is considered at: large and small scales. A. Large scale - Geographic range of occurrence. Physical environment limits geographic distribution of a species (some locations exceed the environmental tolerance of a species). Example: Flying foxes – limited by cold, food and water availability Tropical mammals - Can’t live in strongly seasonal climate – B. Small scale distribution patterns Random = Regular = Clumped = Distribution patterns may change with time of the day, the year and the age of the organism. For example, flying foxes have clumped distributions when they are in large roost sites during the day … and have regular distributions when they are feeding on fruit at night. There are generally no more than two bats per fruit tree due to aggression
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This note was uploaded on 04/12/2011 for the course BIO 326 taught by Professor Gehring,c during the Spring '08 term at N. Arizona.

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Lecture 13 Outline_23Feb2011 - Ecology Outline 17February,...

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