Habitat use and population dynamics of the Azure-Winged Magpie ...
Habitat use and population dynamics of the Azure-Winged Magpie ...
Habitat use and population dynamics of the Azure-Winged Magpie ...
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3.3.3 Adult <strong>and</strong> juvenile survival <strong>and</strong> re-sighting rates<br />
Nearly half <strong>of</strong> <strong>the</strong> adults b<strong>and</strong>ed in 2006 were not seen in 2007 (Fig. 3.12). However, more than<br />
two-thirds <strong>of</strong> all <strong>the</strong> adult birds b<strong>and</strong>ed in 2007 were re-sighted in 2008 <strong>and</strong> 2009. In 2010, <strong>the</strong> resightings<br />
<strong>of</strong> birds b<strong>and</strong>ed between 2006 <strong>and</strong> 2008 were at or less than 20%. The re-sighting rate<br />
<strong>of</strong> adults b<strong>and</strong>ed in 2009 seemed high in 2010, but it was only beca<strong>use</strong> two out <strong>of</strong> three b<strong>and</strong>ed<br />
adults were sighted.<br />
Proportion (%) <strong>of</strong> individuals re-sighted<br />
Figure 3.12 Proportion <strong>of</strong> adult birds b<strong>and</strong>ed each year that were-sighted in subsequent years<br />
Only 8.7% <strong>and</strong> 13.0% <strong>of</strong> juveniles b<strong>and</strong>ed in 2007 were re-sighted in 2008 <strong>and</strong> 2009 as yearlings<br />
<strong>and</strong> adults respectively, whereas 38.2% <strong>of</strong> 2008 juveniles were re-sighted in 2009 as yearlings.<br />
The re-sightings <strong>of</strong> juveniles hatched between 2007 <strong>and</strong> 2009 was at or nearly zero in 2010 (Fig.<br />
3.13).<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
30<br />
20<br />
10<br />
0<br />
B<strong>and</strong>ed in 2006 B<strong>and</strong>ed in 2007 B<strong>and</strong>ed in 2008 B<strong>and</strong>ed in 2009<br />
48<br />
2007<br />
2008<br />
2009<br />
2010