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leading forest science, ecology, and climatology journals. A challenge to dendroe-
cologists is to work collaboratively and to promptly contribute datasets to publicly
accessible archives, in the same generous, ethical, and forward-looking spirit as the
hundreds of dendrochronologists around the world who have contributed ring width
and ring density chronologies to the International Tree-Ring Data Bank. A challenge
to dendroclimatologists is to focus their studies on parameters and questions with
relevance to ecologists, and in turn to utilize the climatically relevant findings and
datasets that dendroecologists are developing to address new questions in historical
climatology.
Acknowledgements
We are grateful to all of the many students and colleagues who have con-
tributed to the collection and development of the dendroecological and dendroclimatological
datasets that we describe and illustrate in this chapter. Our research over the past three decades
has been supported primarily by The University of Arizona, US Forest Service, US Geological
Survey, National Park Service, The Nature Conservancy, and the National Science Foundation.
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