trees. Dbh was converted to basal area [m²/ha]
and calculated separately for understory and overstory trees.
Butterfly trapping. All trapping activities were conducted between 6 June and 17 July, 2009. Cylindrical gauze-traps (Rydon 1964) were used, in which a standard portion of mashed, fermenting banana was placed inside the trap to bait butterflies.
All traps were hand-made. Each trap was 30 cm in diameter and 60 cm long, and comprised a 30 x 30 cm plastified cardboard base. Each trap was stabilized by 2 rings (30 cm diameter), with 60-cm long white tissue connecting the rings to produce the cylindrical shape with the bottom open. Nylon strings were used to connect the bottom of the cylinder and the plastic cardboard, producing a 3-cm gap to allow
the butterflies to enter. The bait was placed in the middle of the cardboard on a small plate. Fourteen trapping sites were selected, of which seven were in primary forest and seven in disturbed forest, where there is currently farming and recently
logging had been carried out. At four of these sites (two primary forest and two disturbed forest sites) traps were established at different vertical heights. Ateach of these four trapping sites, a tree taller than 30m was chosen in order to suspend traps at different heights. Traps were installed at ground level (1 m),in the midstory (15 m), and in the canopy (30 m),resulting in a total of 2 x 2 x 3 = 12 traps at the four
vertical trapping sites. Traps were placed for 32 nonrainy days and were checked for butterflies and rebaited every 24 hours, resulting in a total of 384 trap-days (12 traps x 32 days) at vertical trapping sites.Of the other 10 trapping sites, five were in natural forest and five in disturbed forest. At these 10 sites, no traps were placed in the midstory or canopy,but only at understory level (1 m). These were left for 1 nonrainy days and were checked, sampled and rebaited every 24 hours, resulting in a total of
160 trap-days spent at the 10 understory sampling sites (5 x 2 x 16).
Butterfly identification. For field identification, most specimens trapped were preserved and given awrong
trees. Dbh was converted to basal area [m²/ha]
and calculated separately for understory and overstory trees.
Butterfly trapping. All trapping activities were conducted between 6 June and 17 July, 2009. Cylindrical gauze-traps (Rydon 1964) were used, in which a standard portion of mashed, fermenting banana was placed inside the trap to bait butterflies.
All traps were hand-made. Each trap was 30 cm in diameter and 60 cm long, and comprised a 30 x 30 cm plastified cardboard base. Each trap was stabilized by 2 rings (30 cm diameter), with 60-cm long white tissue connecting the rings to produce the cylindrical shape with the bottom open. Nylon strings were used to connect the bottom of the cylinder and the plastic cardboard, producing a 3-cm gap to allow
the butterflies to enter. The bait was placed in the middle of the cardboard on a small plate. Fourteen trapping sites were selected, of which seven were in primary forest and seven in disturbed forest, where there is currently farming and recently
logging had been carried out. At four of these sites (two primary forest and two disturbed forest sites) traps were established at different vertical heights. Ateach of these four trapping sites, a tree taller than 30m was chosen in order to suspend traps at different heights. Traps were installed at ground level (1 m),in the midstory (15 m), and in the canopy (30 m),resulting in a total of 2 x 2 x 3 = 12 traps at the four
vertical trapping sites. Traps were placed for 32 nonrainy days and were checked for butterflies and rebaited every 24 hours, resulting in a total of 384 trap-days (12 traps x 32 days) at vertical trapping sites.Of the other 10 trapping sites, five were in natural forest and five in disturbed forest. At these 10 sites, no traps were placed in the midstory or canopy,but only at understory level (1 m). These were left for 1 nonrainy days and were checked, sampled and rebaited every 24 hours, resulting in a total of
160 trap-days spent at the 10 understory sampling sites (5 x 2 x 16).
Butterfly identification. For field identification, most specimens trapped were preserved and given awrong
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