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BIOL 1500 (49)
Chapter

Ecology Introduction

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Department
Biology
Course
BIOL 1500
Professor
Alexander Mills
Semester
Winter

Description
TEXTBOOK NOTES 7 Ecology Introduction Organismal Ecology  The focus is on the morphological, physiological, and behavioural adaptations that allow individuals to live in a particular area Population Ecology  The focus is on how the numbers of individuals in a populations changes over time Community Ecology  The focus is on the nature of the interactions between species and the consequences of those interactions Ecosystem Ecology  The focus is on how nutrients and energy move among organisms and through the surrounding atmosphere and soil or water How Do Ecology and Conservation Efforts Interact  Ecologists study how interactions between organisms and their environments result in a particular species being found in a particular area at a particular population size  Conservation biologists apply these data to preserve species and restore environments  In fresh water and salt water, three key physical factors affect the distribution and abundance of organisms: nutrient availability, water depth, and water movement  Conservation Biology: is the effort to study, preserve, and restore threatened populations, communities and ecosystems Nutrient Availability  If water is not moving, nutrients tend to fall to the bottom and collect in the form of debris - Important because they limit growth rates in the photosynthetic organisms that provide food for species Ocean Upwelling  In the oceans, nutrients in the sunlit surface waters are constantly lost in the form of dead organisms that rain down into the depths  Nutrients are brought up to the surface by currents that cause upwellings  As the surface water moves away from the coast, it is steadily replaced by water moving up from the ocean bottom  The upwelling water is nutrient rich  The nutrient
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