BCOR 12 1nd Edition Lecture 20Outline of Last Lecture I. AmphibiansII. Amniotic Egg EvolutionIII. SauropsidsIV. MammalsV. HumansOutline of Current Lecture I. Anthropocene epicII. SustainabilityIII. The Scope of EcologyIV. Population EcologyV. Growth ModelsCurrent LectureAnthropocene epic = the time in the planet’s history defined by the scale of human influence- Debate is going on about when the antropocene epic began- This then states that humans have been globally effecting the Earth- Also states that whatever effect we have had on the Earth is irreversibleSustainability = understanding that present needs must be met without compromising the futureThree parts of sustainability:I. Environment/ecologyII. EconomicIII. SocialThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.Have to think about these three things when proposing an idea for sustainability- Exponentially growing metric trends are unsustainable for they eventually run out of resources, space or hit a wall that prohibits them from continuing to growThe Scope of Ecology- Ecology = the study of how organisms interact with each other and their environmento Deals with abiotic and biotic factors- Types of Ecology:o Molecularo Organismalo Populationo Communityo Ecosystemo Landscapeo Global- Ecology is always being influenced by evolution and vice versaPopulation Ecology- Population ecology = the study of populations in relation to its environment- Dynamic biological process influence populationsPopulation characteristics:I. Density = the number of individuals/area, and is constantly changing. Affected bya. Immigrationb. Birthc. Deathd. EmigrationII. Dispersion = pattern of spacing among individuals. Types:a. Clumped (clump around abundant resources)b. Uniform (seen with populations where there is a lot of competition)c. Random (resources are homogenous and organisms can live wherever)III. Demographics = vital rates. Including:a. Survivalb. Growthc. Reproductioni. Demographics lets us project through timeGrowth Models- Exponential model describes population grown in an idealized unlimited environment- Logistical model describes how a population grows more slowly as it nears it carrying
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