Source-sink dynamics involve habitats that are population “sources,” where birth rates exceed death rates, and habitats that are population “sinks,” where death rates exceed birth rates. Ideally, populations would inhabit source areas until it reaches maximum population size. Then, populations would inhabit sink areas until it reaches maximum population size. Then, populations would return to source areas. Ideally, populations would spend longer in source areas than in sink areas. This is important to our study of renewable natural resources because of ecological traps, where populations think a sink area is actually a source area. This is detrimental to the populations in question, their habitats, and the natural resources from those habitats.