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Chp 51-53 (Behavior (Innate- A day one response, behavior know from the…
Chp 51-53
Behavior
- Innate- A day one response, behavior know from the moment an organism is born. i.e. baby clinging to mother for protection
- Fixed Action Pattern- A sequence of unlearned acts that are linked to a direct stimulus. i.e. geese pulling eggs into nest, human eyebrow flash.
- Imprinting- Long lasting behavioral response to a particular individual. i.e. baby ducks following a person
- Associative Learning- Ability to associate one environmental feature with another. i.e. dogs salivating for treats, food aversion.
- Trial & Error- Behavior through many steps, trying different things to elicit the ideal response. i.e. Skinner Box
- Habituation- Repeating stimuli over and over and it is ignored. i.e. living next to train tracks.
- Observational Learning- Mimicry, watching another organism accomplish a task to learn. i.e. Octopus watching
- Insight- Using cognitive function to fix complex problems. i.e. social animals.
Ecology
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6 major fields of Ecology
- Organismal
- Population
- Community
- Ecosystem
- Landscape
- Global
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Biomes are controlled by climate and disturbance, vegetation specifically is restricted to certain areas because of disturbance
The largest and most diverse biome is the ocean, it is affected by temperature disturbances by a separation of the warmer and colder waters.
Interactions and disturbances of biomes contribute to the evolution of species living within a certain biome.
Population
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Populations will go up (births and immigration}, and go down (deaths and emigration).
Growth of population formulas
Exponential dN/dt=rN, this is used under good cercumstances and resources are abundant.
Idealistic dN/dt=rN[(K-N/K)] this is to show that there is an idealistic number at which the population can be sustained
Limited resources are a factor in population growth. Many populations go through a boom and bust cycle.
Human population has made a dramatic increase in the past 400 years. Possibly past K the idealistic number of population