Attributes / relations provided by
♦ 1i-Tree Species v. 4.0, developed by the USDA Forest Service's Northern Research Station and SUNY-ESF using the Horticopia, Inc. plant database.
♦ 2Kattge, J. et al. (2011b)
TRY - a global database of plant traits Global Change Biology 17:2905-2935
♦ 3USDA Plants Database, U. S. Department of Agriculture
♦ 4Forest Inventory and Analysis DB version 5.1, May 4, 2013, U.S. Forest Service
♦ 5Balda, Russell P. and Kamil, Alan,
Linking Life Zones, Life History Traits, Ecology, and Spatial Cognition in Four Allopatric Southwestern Seed Caching Corvids (2006). Papers in Behavior and Biological Sciences. Paper 36.
♦ 6DIET AND TREE USE OF ABERTS SQUIRRELS (SCIURUS ABERTI) IN A MIXED-CONIFER FOREST, ANDREW J. EDELMAN AND JOHN L. KOPROWSKI, THE SOUTHWESTERN NATURALIST 50(4):461465 DECEMBER 2005
♦ 7Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014).
Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.