Important Concepts from Ecology

Important Concepts from Ecology - BMZ115E Exam 2 Study...

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BMZ115E Exam 2 Study Guide I. Introduction to Ecology (Ch 54) A. How is it defined, and why does it matter? -Study of organisms and their interaction with each other in their environment. 1. Important founding ecologists: Eugene Odum -Fundamentals of Ecology 2. Ecologists ultimately all study what? Three ways to study… -Descriptive Studies -Experimental Studies -Modeling 3. How are ecological questions addressed? -^^ 4. How ecology differs from environmentalism -Environmentalism involves tree huggers. B. Fields of Ecology: what’s studied, and what distinguishes one field from the other: 1. organismal ecology -Physiology of the organism. 2. population ecology -focuses on populations of a single species 3. community ecology -Focuses on species interactions in environment. 4. ecosystem ecology -Energy and nutrient flow through trophic levels. 5. landscape ecology -The interaction of multiple ecosystems. C. Role of sunlight on weather and movement of air 1. factors influencing global climate -Precipitation and temperature 2. relationship between solar radiation and seasons -Earth closest to sun in winter. -Most CO2 present in winter because photosynthesis is lowest. 3. landscape features that influence weather -Mountains create rain shadows 4. greenhouse effect—what is it and why it matters -Gases trap heat in the atmosphere which heats the temperature of the earth. -Earth would be much colder without greenhouse effect. D. Factors influencing distribution of species 1. the important abiotic factors -Water and temperature 2. biotic factors -Predators 3. characteristics of the organism 4. which abiotic factors are the most important? (how do they influence biomes?) 5. importance of microclimates 6. potential impacts of global change II. Population Ecology (Ch 56) A. Defining 1. distribution/dispersion of populations…which form is most common? -Clumped/Cluster (Most Common) -Uniform
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-Random (Rarest) 2. what biological reasons are used to explain each distributions? -Clumped: Herd mentality reduces probability of being eaten. -Uniform: Like to maintain distinct territories. -Random: 3. population dynamics & what is it influenced by? -Influenced by life history traits (reproduction and survival/strong connection to fitness). 4.
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This note was uploaded on 09/20/2011 for the course BMZ 115 taught by Professor Cheng during the Spring '11 term at Miami University.

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Important Concepts from Ecology - BMZ115E Exam 2 Study...

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