Changing Populations Visual Aid for Kamico Activity Changing

Changing Populations Visual Aid for Kamico Activity “Changing Populations” Question: Why do populations change? Answer: To SURVIVE!!

SUCCESSFUL ADAPTATIONS

GALAPAGOS ISLAND FINCHES Charles Darwin discovered finches while visiting the Galapagos Islands There were 14 types on the island They have adapted their beaks to suit their habitat. Why? Survival

Eastern Spade foot Toad Lives in Blackland Prairies of North America (A very dry place) In a drought, it digs into the ground and covers himself with soil While in the soil, his skin will absorb water. He needs the water to reproduce and SURVIVE is ed h t ap a k -sh o Lo ade sp t! fee

Live in Florida Changed skin color from green to brown to blend in with tree trunks Cuban anole forced them to migrate to tops of trees Adapted by changing to a different habitat for SURVIVAL Green Anoles Can you see me?

LESS SUCCESSFUL ADAPTATIONS

American Buffalo Millions of buffalo roamed prairies from Texas to North Dakota Pioneers moved into their habitat They were not able to adapt Are critically endangered due to intro of humans as predators and reduction of habitat

American Bald Eagles Pesticide use by humans has decreased their numbers They ate prey which had consumed plants/insects coated with pesticides. They are at the top of their food chain, so pesticides would accumulate in their bodies It would then pass to their eggs

Passenger Pigeon There used to be so many they would turn the sky dark when they flew by Lived in N. America Hardwood forests were cleared for agriculture Lost their habitat Did not survive the change and thus are extinct

Questions Follow up with the (10) “Changing Populations Activity” questions from Kamico p 388 -389