Mapping Mockingbirds

Mapping Mockingbirds

Name(s):_________________________ Pinta X Mapping Simplified Map Mockingbirds Marchena X of the Teacher Answer Key Galápagos Islands All four species of Galápagos Santiago mockingbirds are endemic to the archipelago, meaning they are native the N islands and found nowhere else in the X W E world. But exactly which islands do they X Baltra inhabit, and how are they related to one X S another? Fernandina X Your task is to map both the geographic distribution and the evolutionary X Santa Cruz relationships of the Galápagos X mockingbirds. To solve this puzzle, use wind San Cristóbal information from the List of Clues. Listen Isabela direction to instructions for help with color‐coding your map and completing the family Floreana tree. X Española X Image Key Name of Mockingbird Species Notes • More closely related to bird on San Cristóbal than one Scientific:_Nesomimus macdonaldi__________ on Santa Cruz • Dark throat stripe; spotted breast band Common:_Española mockingbird__________ • Sister group lives on San Cristóbal • Lives on one of the southern islands Scientific:_Nesomimus trifasciatus________ • Dark head; white patch behind eye • Endangered Common:_Floreana mockingbird__________ • Shares a recent common ancestor with N. parvulus • Shares a recent ancestor with Floreana mockingbird Scientific:_Nesomimus parvulus____________ • More closely related to N. trifasciatus than to N. melanotis Common:_Galápagos mockingbird_________ • Lives on Marchena: does not have a dark throat stripe • Lives on island that is located farthest to the east Scientific:_Nesomimus melanotis______ • Narrow neck collar; black throat stripe • Sister group lives on Española Common:_San Cristóbal mockingbird_____ Family Tree of the Galápagos Mockingbirds Genus Nesomimus ? (closest continental relative) Ancestor to all * Nesomimus trifasciatus modern ( Floreana mockingbird ) mockingbirds Note: Nesomimus parvulus These ( Galápagos mockingbird ) two Nesomimus macdonaldi answers ___________ : scientific name of modern species ( Española mockingbird ) * : indicates endangered status are Nesomimus melanotis : lineage, a line of descent from a particular ancestor interchangeable ( San Cristóbal mockingbird ) : node, the point where a single lineage diverges .

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