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Lecture notes, lectures 1 - 11 - Ecology
Integrated Principles of Biology 2 (University of Florida)
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Tuesday, July 12, 2016
Lecture 1
Introduction to Ecology
- logy—logos; study of
- eco— oikos=house
- the scientific study of relationships between organisms and their environments
(Haeckel)
- NOT activism
- Key concept:
• ecological systems vary over space and time
• Solar energy input and topography shape the Earth’s physical environments
(Climate)
- Scales of Ecological Organization
• Organism—survival and reproduction
• Population—groups of individuals of the same species interacting
• Community—Interactions among populations of different species
• Ecosystem—communities plus their abiotic environment
• Biosphere—all organisms and environments of the planet
- What determines the environment where organisms live?
- Variations in Solar energy drive patterns of weather and climate
- Climate
• long term trends in temperature, wind, precipitation based on averages and
variation measured over decades
• Determines where organisms live
• resource availability
• rate of pop. growth
• key to understanding all ecological phenomenon
- Weather
1
Downloaded by Oluwadamilola Awe ()
, lOMoARcPSD|37552927
Tuesday, July 12, 2016
• temperature, wind, humidity and precipitation at a particular time and place (short
term)
- Earth’s energy budget
• energy in-solar radiation
• incoming radiation-mostly short wave-visible
• 31% reflected by clouds/surface
• 20% absorbed by atmosphere
• 49% absorbed by earth
• Transpiration-water loss from plants
2
Downloaded by Oluwadamilola Awe ()
Lecture notes, lectures 1 - 11 - Ecology
Integrated Principles of Biology 2 (University of Florida)
Scan to open on Studocu
Studocu is not sponsored or endorsed by any college or university
Downloaded by Oluwadamilola Awe ()
, lOMoARcPSD|37552927
Tuesday, July 12, 2016
Lecture 1
Introduction to Ecology
- logy—logos; study of
- eco— oikos=house
- the scientific study of relationships between organisms and their environments
(Haeckel)
- NOT activism
- Key concept:
• ecological systems vary over space and time
• Solar energy input and topography shape the Earth’s physical environments
(Climate)
- Scales of Ecological Organization
• Organism—survival and reproduction
• Population—groups of individuals of the same species interacting
• Community—Interactions among populations of different species
• Ecosystem—communities plus their abiotic environment
• Biosphere—all organisms and environments of the planet
- What determines the environment where organisms live?
- Variations in Solar energy drive patterns of weather and climate
- Climate
• long term trends in temperature, wind, precipitation based on averages and
variation measured over decades
• Determines where organisms live
• resource availability
• rate of pop. growth
• key to understanding all ecological phenomenon
- Weather
1
Downloaded by Oluwadamilola Awe ()
, lOMoARcPSD|37552927
Tuesday, July 12, 2016
• temperature, wind, humidity and precipitation at a particular time and place (short
term)
- Earth’s energy budget
• energy in-solar radiation
• incoming radiation-mostly short wave-visible
• 31% reflected by clouds/surface
• 20% absorbed by atmosphere
• 49% absorbed by earth
• Transpiration-water loss from plants
2
Downloaded by Oluwadamilola Awe ()
