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5 cards from this section. Quick, good the night before a test.
What does the letter r stand for in the term r-selected species?
It comes from the equations used to model population growth.
State three traits that are typical of r-selected species.
Think of a housefly rather than an elephant.
Which of these is the best example of an r-selected species?
Look for the species with many offspring and a short life.
Which survivorship curve is typical of r-selected species?
Most deaths happen at the very start of life.
Sea turtles lay around a hundred eggs in each nest and give no parental care, yet they live for decades and take many years to mature. Evaluate whether sea turtles should be classed as r-selected or K-selected.
List the traits that point each way before deciding.
An invasive r-selected weed is spreading along a river bank. Propose a management plan that takes account of its reproductive strategy.
Target the stage of the life cycle that produces new offspring, and plan for rapid regrowth.
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