Research Article

Survey to Evaluate Escape of Eucalyptus spp. Seedlings from Plantations in Southeastern USA

Table 1

Characteristics of sites and stands sampled in this study. Also shown is the number of transects sampled at each site, and the level of confidence (based on transect number) that we would encounter Eucalyptus seedlings if they were present at a particular site (see text for details on how confidence level is calculated).

SiteSpeciesPlanting typeYear plantedHarvest historyStand size (ha)Seed productionNumber of transectsConfidence level of survey

FL1E. amplifolia Plantation1999Most cut in 2005 with some coppice, ~10 of original trees remain0.49Possible since ~2007210.998
FL2E. amplifolia, 
E. grandis in ~1 acre of eastern 1/3
Plantation1998, 1999Clearcut 2009, now coppice26.83Possible from ~2007–2009170.993
FL3aE. amplifolia Plantation1980, 19951980 planting cut several times until 1987; 1995 planting never harvested0.07Possible since ~1995150.989
FL4aE. amplifolia 1- and 3-row windbreak2007W-most row felled and coppiced in 20100.14Possible since ~2010200.997
FL4bE. amplifolia 3-row windbreak2007N-most row felled and coppiced in 20100.04Possible since ~2010200.997
FL5aE. grandis 2-row windbreak2009 + replantsNone0.13Started April 2011200.997
FL5bE. grandis 2-row windbreak2009 + replantsNone0.20Started April 2011400.999
FL6E. grandis
E. tereticornis
E. camaldulensis
Clone Bank1995Partial felling, these areas now in coppice1.77Possible since ~2000, but poor seeding clones70.877
FL7E. grandis
E. amplifolia
Plantation2005~10 trees in 20100.41Possible since ~2009200.997
FL8E. grandis
E. camaldulensis
E. tereticornis
E. robusta
Clone Bank
1995None0.15Possible since ~2000, but poor seeding clones90.933
FL9E. camaldulensis
E. tereticornis
E. amplifolia
Seed orchard1974,
E. amplifolia interplanted 2001-2002
Rogued to orchard trees ~198336.88Possible since ~1980, but poor seeding trees400.999
FL11E. robusta
E. grandis
Seed orchard1973, 1975, 1977
E. grandis inter-planted in 1980
1973 planting rogued to orchard in 1977
1975 planting clearcut 2004, now in coppice
1977 planting felled and coppiced 1980, rogued to orchard in 1985
14.93Possible since 1977390.999
FL13E. grandis
E. amplifolia
E. robusta
Seed orchard1996None2.56Possible since 2000140.985
FL14E. grandis Plantation1980Harvested 1990, 2004, now in 2nd coppice with low survival100.52Possible ~1984–90, 1994–04, 2008–present250.999
FL15aE. grandis Plantation2005none56.82Possible since 2010390.999
FL15bE. grandis Plantation2005none48.51Possible since 2010350.999
SC1E. benthamii
E. macarthurii
E. dorrigoensis
E. badjensis
E. viminalis
Progeny test/Seed orchard2000Thinned in 2004
Partially harvested 2009
6.20Started October 2006380.999
SC2E. benthamii
E. macarthurii
E. dorrigoensis
E. badjensis
E. viminalis various others
Species Screening
Trial
1998none5.26Possible since 2004410.999
SC3E. benthamii
E. macarthurii
E. dorrigoensis
E. badjensis
E. viminalis
Progeny test1999none0.63Possible since 2005190.997