Migration & Dispersal Worksheet 3.3 Supplemental Instruction Iowa State University Leader: Course: Instructor: Date: Hannah AECL 365 Dr. Waldman 11-10-15 1.) What is migration? Why did it most likely evolve? a. Name some benefits of migrating. b. Name some costs of migrating. 2.) Name whether the listed bird is migratory (transient) or resident. Small insectivores are ___________________ Shorebirds & seabirds are mostly ____________________ Seed eaters are ___________________ Flesh eaters are ___________________ 3.) Adult birds have very high _____________________ when returning to the territory they were in the previous year. Juveniles can locate the ______________ _______________. 4.) There are migration routes called _______________, which many birds utilize when flying long distances to locate warmer weather. 5.) The _______________ _____________ is the migration champion. This bird flies the entire globe annually which ends up being 50,000 km every year. 6.) Ascension island is the ________________ ___________ for all green sea turtles. 1060 Hixson-Lied Student Success Center 515-294-6624 sistaff@iastate.edu http://www.si.iastate.edu 7.) List some mammals that migrate. a. Briefly describe the process of gray whale migration. 8.) Salmon are an example of ____________________ migration because they are born in freshwater, spend their adult life in marine waters, and then migrate back to freshwater to breed/lay eggs/ die. 9.) Define the difference between orientation and navigation. 10.) What is dispersal? How is it different from migration? a. ____________ ___________________ is movement away from the natal area. Most vertebrate young will leave the home range of their parents. 11.) Explain the benefits and costs of dispersal. 12.) The dispersers are often times the _________-_________________ gender. 1060 Hixson-Lied Student Success Center 515-294-6624 sistaff@iastate.edu http://www.si.iastate.edu