While we examined and measured the pines in late winter/early spring, we observed a great amount of fresh girdling activity, leading us to hypothesize that pine bark was providing a source of nutrition at a time of year when rodent density was relatively high and the quality of their principal food, monocots, was likely to be poor.
Information collected at the sub-cell level was used for statistical analysis of the habitat and girdling damage in the four sub-cells surrounding each trap station.
3 m above ground level, just beyond the height a rodent could reach while girdling.
Days after girdling
Treatment 0-5 ([dagger]) 6-10 11-15 flowers per node [d.
These included Spearman's rank correlations for interval-interval or interval-ordinal variable comparisons such as the girdling index to pellet group counts, and the girdling index to aspect (an ordinal variable with 8 levels).
Mortality was positively correlated with the girdling index (y = 49.
In 1995, CER for the girdled treatment was significantly lower (40-60%) for all three cultivars for at least 20 d after girdling (Fig.
Defoliation of girdled plants increased CER only in the experiments where girdling reduced CER.
Girdling refers to the process of peeling off the bark of a tree trunk to prevent it from sharing nutrients.
Last year, Reyes led a crusade to save 770 trees which sustained girdling injuries along the MNR expansion area in eastern Pangasinan towns.
During a March session of the Pangasinan provincial board, a DENR official said girdling, or the process of peeling off a section of a tree's trunk to prevent nutrients from reaching its branches, violated the provisions of the treecutting permit.
We did not expect the girdling to happen," said Leduina Co, provincial environment and natural resources officer.