Table 1. Numbers of seedlings (individuals < 15 cm tall) observed for each species during each year for each of the five focal species at the Smithsonian Environmental Research Center.

Species	Year 1 2012	Year 2 2013	Year 3 2014
Acer rubrum	29	23	22
Fagus grandifolia	22	24	30
Fraxinus spp	42	41	28
Liriodendron tulipifera	332	278	191
Liquidambar styraciflua	55	51	14