BIOLOGY 3SS3 Lecture Notes - Lecture 5: Dn2, Population Model, Unit
29 Mar 2017
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Inter-species interactions: competition: interaction hurts the growth rate of both species. Answer: (open-ended: exploitation: interaction is good for one species but bad for the other. Answer: (open-ended: mutualism: interaction is good for both species. Answer: (open-ended: commensalism: interaction is good for one species, and close to neutral for the other. Competition: competition occurs when two species both depend on the same re- source, or resources, each species ability to reproduce successfully is reduced by the presence of the other. Answer: survival, growth, producing o spring: species may be very similar, or very di erent. Answer: oaks and maples competing for light. Answer: ants and mammals competing for leaves. Answer: mussels and algae competing for space in the intertidal zone. Flour beetles: there is a series of experiments where researchers allow two species of. Answer: the species could both survive together. Answer: sometimes one survives, and sometimes the other. Answer: whichever species got a head start would survive.
