Exam 3

Can species 1 persist in this scenario? α=2, carrying capacity for species 1 is five times that of species 2 {Ans: 2<5/1, Species 1 can persist}For a population as whole to show a net increase over time what conditions must be met? {Ans: The total number of births and new immigrants must outweigh the total number of deaths and emigrants.}Climate envelope modeling attempts to predict a species _____ realized niche and _____ ______ when climate change is taken into account. {Ans: Future, Geographic range}A bird eating a caterpillar, reducing the amount of grass eaten by a caterpillar, is an example of an _____ _____. {Ans: Indirect effect (mediated by third party)}Climate change is an example of a ______ _____ ______. {Ans: Positive feedback loop}Carbon Cycle {Ans: the movement of carbon (as CO2 or Methane) from the nonliving environment into living things and back}Per capita growth rate is denoted by _____. {Ans: r (b-d=r) (b=births, d=deaths)}Logisitic growth takes _____ _____ into account. {Ans: Resource limitations}A bee pollinating a flower is an example of a _____ ______. {Ans: Direct effect}Alpha {Ans: Competitive effect of species 2 on species 1 (α)}Climate Envelope