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Biological Disciplines Relating To Ecological Study. PHYSIOLOGY. BEHAVIOR. GENETICS. Applied Ecology; Management. EVOLUTION. INCREASED KNOWLEDGE. Organization of Biological World. Biosphere Landscape Ecosystem Community Population Individual
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Biological Disciplines Relating To Ecological Study PHYSIOLOGY BEHAVIOR GENETICS Applied Ecology; Management EVOLUTION
INCREASED KNOWLEDGE Organization of Biological World Biosphere Landscape Ecosystem Community Population Individual Organ Tissue Cell Organelle Atom INCREASED COMPLEXITY
Types of Ecological Study • AUTECOLOGY
Types of Ecological Study • SYNECOLOGY
Introduction Frigate bird
Introduction “Nothing in biology makes sense except in the light of evolution” Theodosius Dobzhansky
Introduction • Major Advances • Hypothesis Testing • Testing ideas about how the natural world works • A hypothesis is developed to explain an observed phenomenon.
Testing Ideas about How the Natural World Works • Null Hypothesis • Hypothesis of no difference • Alternative Hypothesis
Most feeding is done below neck height. Males Females 7 7 6 6 5 5 4 4 Feeding height (meters) 3 3 2 2 1 1 0 0 0 20 40 0 20 40 Percentage of feeding bites
Testing Ideas about How the Natural World Works • Null Hypothesis • Hypothesis of no difference • Alternative Hypothesis