A Rocha Portugal Observatory Report 2009-2010

32 A Rocha Portugal Observatory Report 2009-2010
Figure 1b Total number of butterflies recorded in Abicada and Mexilhoeira Grande with the
exception of Pyronia cecilia.
Table 2 shows the number of individuals recorded for each transect and Table 3 shows the number of
species recorded. The most consistently species-rich site was M4 (Mexilhoeira Grande), which recorded a
mean of 6.3 species per week. The largest number of individuals was recorded along transect A3 (Abicada
grassland), this transect totalled 219 individuals over the course of the survey period. The least diversity
was observed along transect A1 (Abicada lowland), with a mean of 2.7 species per week, and a survey total
of only 47 individuals recorded.
Table 2 Number of individuals recorded for
each transect each week.
Date Transects
A1 A2 A3 M4
02-06-09 5 19 42 0
09-06-09 14 15 47 31
16-06-09 10 22 11 27
23-06-09 2 16 14 21
30-06-09 3 15 13 15
07-07-09 0 9 10 12
14-07-09 3 3 5 9
22-07-09 0 10 3 7
28-07-09 1 14 15 7
04-08-09 2 6 9 10
12-08-09 1 3 11 12
19-08-09 0 6 16 6
25-08-09 2 2 4 12
22-09-09 2 10 4 4
13-10-09 2 14 15 1
Total 47 164 219 174
Mean 3.1 10.9 14.6 11.6
Table 3 Number of species recorded
for each transect each week.
Date Transects
A1 A2 A3 M4
02-06-09 2 10 7 0
09-06-09 3 6 8 10
16-06-09 3 4 3 8
23-06-09 1 6 4 8
30-06-09 2 6 4 6
07-07-09 0 1 1 3
14-07-09 2 1 2 3
22-07-09 0 3 2 3
28-07-09 1 2 2 6
04-08-09 2 1 1 4
12-08-09 1 3 2 5
19-08-09 0 2 2 5
25-08-09 2 2 2 4
22-09-09 2 3 3 3
13-10-09 2 7 6 1
Total 8 17 16 16
Mean 2.7 3.5 3.9 6.3