Basic HTML Version
International Journal of Marine Science 2013, Vol.3, No.25, 193-200
http://ijms.sophiapublisher.com
197
Figure 4 Nesting areas of birds on Om-Al-Gorm 2008-2012
area of the island is 35 ha (Figure 6). Total breeding
population of birds increased from 16,214 pairs in
1975 to 38,707 pairs in 2012, and from 15,340 pairs in
2008 to 38,707 pairs in 2012 ( more than twice). Three
species of terns (Bridled Tern, Lesser Crested Tern
and Swift Tern) were dominant and in Nakhiloo in
2009-2012. The maximum population of Bridled Tern
was 29,461 pairs in 2010 (15,000 pairs in 1975),
Lesser Crested Tern was 17,783 pairs in 2012 (10,000
in 1975), and Swift Tern
sterna bergii
was 1,488 pairs
in 2012 (40 pairs in 1975) in Nakhiloo. Crab Plover
and Western Reef Heron did not breed in Nakhiloo
in 1975.
2.3.3 Breeding species on Khan (Morghu)
Twenty species of birds were observed in Khan in
2008-2012. One species, the Hoopoe
Upopa epope
was a landbird, terrestrial and 19 species were
waterbirds, eight of which were breeders (Table 5 and
Figure 7). Lesser Crested Tern and Swift Tern were
dominant and indicate in 2008-2012 in this island. The
maximum breeding population of Lesser Crested Tern
was 4,345 pairs in 2009, but only 300 pairs in 1975
Table 4 Population of breeding species in Nakhiloo, 2008-2012 and 1975
Breeding Species
Scott 1975 pairs 2008 pairs 2009 pairs 2010 pairs 2011 pairs
2012 pairs
Western Reef Heron
Egretta gularis
0
8
34
44
74
92
Crab Plover
Droma ardeola
0
0
0
0
2,500
2,266
Saunders’s Tern
Sterna saundersi
4
0
0
3
2
0
White-checked Tern
Sterna repressa
170
74
59
67
0
26
Bridled Tern
Sterna anaethetus
15,000
0
22,189
29,461
17,500
17,052
Swift Tern
Sterna bergii
40
204
1,302
1,008
1,200
1,488
Lesser Crested Tern
Sterna bengalensis
1,000
0
15,054
10,169
17,500
17,783
Total
16,214
15,340
33,753
43,982
38,835
38,707
Figure 5 Breeding populations of birds in Nakhiloo 2008-2012
and 1975
(Scott, 1975) and maximum population of Swift Tern
was 2,500 pairs in 2008 but only 40 pairs in 1975
(Scott, 1975). Bridled Tern was dominant in 1975 with
5,500 breeding pairs (Scott, 1975), but this species did
not breed in Khan in 2008-2011, only in 2012, when
Figure 6 Nesting areas of birds on Nakhiloo, 2008-2012
325 pairs bred in this island. All species bred at the
southern part of island (Figure 8). The total breeding
population of birds decreased from 5,917 pairs in
1975 to 2,579 pairs in 2012, a 50% reduction of the