Hello everyone
In the Annual Bird Report 2006-07 there were GBS graphs
showing abundance (A) trends for selected species throughout the survey period
of 26 years. For production reasons the Rsquared value for each trend
line was omitted. Given the values were so high (apart from one species)
I thought it best to omit them. However, for those more statistically minded,
I enclose them here.
|
Species
|
R squared
|
|
Crested Pigeon
|
0.9779
|
|
Sulphur-crested Cockatoo
|
0.9549
|
|
Galah
|
0.7945
|
|
Crimson Rosella
|
0.9543
|
|
Magpie-lark
|
0.8565
|
|
Silvereye
|
0.6792
|
|
Red Wattlebird
|
0.8988
|
|
Pied Currawong
|
0.2216
|
|
Australian Magpie
|
0.8971
|
|
House Sparrow
|
0.9567
|
|
Common Myna
|
0.9239
|
|
Common Starling
|
0.9396
|
|
|
|
|
NB: all trends are for 26 years except Common
Starling for which year 1 was so extreme it was omitted.
|
Cheers
Paul Fennell
Editor Annual Bird Report
02 6254 1804
0407 195 460
