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A BIRD'S BEST FRIEND?
REFERENCES
The Berger et al. study was published in the scientific journal Ecological Applications volume 11, number 4.
 
Who would welcome wolves back to Yellowstone after 70 years? How would people respond? What would be the impact on other species? Would there be any surprises? Could biologists predict the results?
Reintroducing wolves to Yellowstone would provide a living experiment in one of the most spectacular ecosystems in the United States. But even before the wolves spread across the landscape, researchers tried to anticipate their impacts.
The four researchers listed below investigated the impacts wolves and grizzlies could have on birds that flew thousands of miles to nest in Greater Yellowstone.
Joel Berger from the Wildlife Conservation Society
Peter Stacey from the University of New Mexico
Lori Bellis & Matthew Johnson from the University of Reno
Could the wolf affect the abundance and diversity of wildlife in the Greater Yellowstone Ecosystem? The researchers suspected yes. What do you think?
Your mission is to search for the chain of connections linking wolves and migratory birds.
   
  Need More Info?
   
Where do migratory birds nest? Find out in the following Field Guides:
 
Black-headed Grosbeak
Calliope Hummingbird
Fox Sparrow
Yellow Warbler
   
Who eats willows? Who eats herbivores? Take a look at the other Field Guides in the Resource Center.
   
 
 
FIELD NOTEBOOK
Download these questions as a document.
 
In what way do you think the presence of wolves in the Greater Yellowstone Ecosystem might affect migratory bird populations?
   
  Note: Your answer doesn’t need to be correct, but it does need to offer a logical explanation.