Browsing Student Research Day by Subject "Keystone species"
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Selection of Sap Well Trees by a Keystone Species : the Red-naped Sapsucker (Sphyrapicus nuchalis) (2013-05)Sapsuckers are considered keystone species. The keystone at the top of an arch holds all of the stones in place; without it the arch would collapse. Similarly, a keystone species has a disproportionally large effect on ...