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What species exhibit key ecological functions that are not always proportionate to their abundance?
Name the top 2 causes of extinction
loss of suitable habitat & competition, predation & disease associated w/alien invaders
What is causing the demise of understory plants of the southeast?
competition w/alien plants (kudzu, honeysuckle)
What are the primary causes of the extinction of native Hawaiian birds?
habitat loss, avian diseases, & introduced predators
What caused the extinction of the Carolina parakeet?
killed in large numbers b/c they were thought to be an agricultural pest
What caused the extinction of the passenger pigeon?
overharvest, loss of habitat, limits on social biology
What are 5 possible causes for the decline in amphibians?
loss of habitat, pollution, disease, UV radiation, acid rain
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