How do you read a Histogram?

How do the wolves help the trees grow in Yellowstone National Park? In this video, learn about the fascinating study that used histograms to reveal the link between wolves and cottonwood tree growth in Yellowstone National Park. And watch out - some histograms may be deceiving! Find out how to spot histogram manipulations in this video.


Illustrations by Michelle Lotker
Scientific Consultation by Malcolm Campbell


The research paper featured in this video is:
R. L. Beschta, Reduced Cottonwood Recruitment Following Extirpation of Wolves in Yellowstone’s Northern Range. Ecology 86, 391–403 (2005). http://doi.org/10.1890/04-0964


Follow me on Twitter!
  / youtoobio  


Want YouTooBio in your Inbox? Monthly Newsletters with new videos and teaching tips for the Biology classroom! Sign up here: https://mailchi.mp/72e662aad0b8/newsl...