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. 2013 Mar 27;8(3):e59687. doi: 10.1371/journal.pone.0059687

Figure 1. Thermal image overlaid with Parthenolecanium quercifex abundance across the Raleigh, NC urban heat island.

Figure 1

2nd instar P. quercifex abundance across the Raleigh, NC urban heat island. Dots represent relative 2nd instar P. quercifex abundance per 30.5 cm stem at each hot (red) and cold (blue) site (n = 40) in winter 2011. The image is a thermal map of the Raleigh, NC urban heat island created from a Landsat image acquired on August 18, 2007.