Research Article

Foraging Activity of Native Ants on Trees in Forest Fragments Colonized by the Invasive Ant Lasius neglectus

Table 1

Mean (SE) of forest fragment size, tree abundance and tree diameters at fragments occupied by the invasive ant Lasius neglectus (LN) or native ants (NA). Trees were categorized as: isolated trees (I), edge trees (E), or core trees (C). Total abundance of each category is after (SE). Different letters showed significant differences of post hoc comparisons of the interaction between tree category x fragment type (Tukey, ).

Fragment typeArea (ha)Edge (m)AbundanceDiameter (cm)
IECIEC

LN0.092 (0.031)81.67 (6.74)2.33 c (1.45) 714.67 ab (2.33) 4423.0 a (4.51) 6929.49 (2.78)31.58 (4.00)28.47 (2.57)
NA0.075 (0.017)53.30 (23.98)1.75 c (0.85) 712.75 ab (3.66) 515.0 bc (1.08) 2025.75 (5.12)28.62 (2.13)21.51 (2.68)