Graph

Nelson's Sparrow
(Ammospiza nelsoni)

Breeding Bird Survey (BBS) - Canadian analysis

Additional information on: Breeding Bird Survey (BBS) - Canadian analysis

Geographic area or population: Canada

Graph showing the trend of the species through out the observed years
 
Listing of the threshold values that appear on the graph
Population below lowest acceptable levelGoal
0.088 0.16
Listing of the individual data points that make up the graph
YearAnnual IndexLower limitUpper limit
19700.0820.050.19
19710.090.0570.182
19720.0840.0510.19
19730.1490.0740.59
19740.0880.0570.174
19750.0840.0540.153
19760.0890.0570.183
19770.0870.0570.156
19780.0890.060.154
19790.090.0620.153
19800.0880.0610.148
19810.0910.0630.156
19820.090.0620.144
19830.0940.0650.156
19840.1030.0710.172
19850.0930.0660.146
19860.0970.0680.15
19870.1440.0890.45
19880.0970.0690.145
19890.1040.0760.167
19900.1160.0810.261
19910.1070.0790.16
19920.1190.0880.187
19930.1090.0810.16
19940.1150.0860.171
19950.1180.090.167
19960.1350.10.22
19970.1120.0830.16
19980.1190.0910.159
19990.1420.1080.204
20000.1610.120.24
20010.1330.1010.184
20020.1230.0920.166
20030.1270.0970.17
20040.1430.110.199
20050.1360.1020.188
20060.1550.1140.255
20070.1480.110.209
20080.1350.0980.188
20090.1660.120.266
20100.1470.1080.207
20110.1760.1290.265
20120.1920.1410.296
20130.2340.160.452
20140.1860.1370.277
20150.1770.1290.26
20160.1820.1320.273

Notes on numeric data: Ex represents 10 to the power of x; For example 1.2345E-2 is equivalent to 0.012345