5. How does deforestation affect life cycles Eg. Salmons. When salmons lay eggs , they lay it on the river bed .Then since there are no more trees, there will be more floods .When there are floods, the flood will wash the sand on to the eggs and then the eggs will not be able to breath and die. So let’s say the mother fish laid 500 eggs and 300 of them died.Then the rest of the 200 eggs became baby salmons still attached to their egg yolk.The floods will still kill let’s say a 100 of these baby salmons. So the 100 baby salmons become juvenile salmons. But because of deforestation, there will be no more trees and so the juvenile will have no place to hide from the other predators, and so they will get eaten up . There will be about 20 left . And those 20 juvenile will become fully grown salmon. So as all these things keep repeating ,the numbers will keep decreasing and soon the salmon will be EXTINCT!