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How your data are being used

The plant and animal phenology observations that Nature's Notebook participants have been contributing tell some interesting stories! We invite you to read about some of our most recent discoveries from Nature's Notebook data below. Check back often; we update this page frequently!

Spring 2012 deciduous tree leaf-out

Spring 2010 was anomalously early in much of the eastern United States, and resulted in lilacs and other species leafing and flowering weeks ahead of schedule. When 2012 began showing signs of another early spring, we launched a campaign across the northeastern quadrant of the United States to capture observations of plant phenology. 

Hummingbird activity in spring 2011 and 2012

 The timing of flowering plants and migrating birds matters. Migrating hummingbirds depend on flowers as a food source, and flowering plants depend on birds for pollination. When the timing of these events is mismatched, as in years with anomalously early springs where the plants flower before the birds arrive, both the plants and the birds can suffer. 

Decrease in overlap between flowering deciduous trees and Tennessee warblers (2011-2012)

 We compare Nature's Notebook data on flowering of 6 species of deciduous trees with eBird (Cornell Lab of Ornithology 2012, ebird.org) data on a long-distance migratory bird, the Tennessee warbler, to demonstrate interannual patterns of phenological synchrony and overlap associated with the early spring of 2012 in the eastern U.S.

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