ZOOLOGY 651 Lecture Notes - Lecture 16: Extinction Vortex, M People
5 Nov 2016
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Document Summary
St. matthew island reindeer introduced to island, population rose dramatically and nearly died off within two years bad weather events depleted resources resources also grew very slowly exceeded carrying capacity. High intrinsic rate relative to food supply increases chances of overshoot. Propensity to overshoot small critter with high r: Higher intrinsic rate of increase greater potential larger beast with lower r consequences: food base deteriorates fall in survival and fecundity subsequent population crash resources may be damaged and can"t recover. We are limiting our own resources - important to realize before we exceed k. Growth in more, less developed countries rates of population growth in africa still highest. But rates of population growth are slowing yet total population growth remains large, because n remains large. U. s. population continues to grow quickly, faster than most w european countries past few decades, higher rates of teen pregnancy.
