Graph

Willow Ptarmigan
(Lagopus lagopus)

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 individual data points that make up the graph
YearAnnual IndexLower limitUpper limit
19820.1550.0440.683
19830.1520.0460.662
19840.1550.0450.594
19850.1570.0490.578
19860.1560.0570.513
19870.1530.0490.537
19880.1520.0510.54
19890.1520.0540.519
19900.1490.0510.501
19910.1460.0530.485
19920.1470.0520.45
19930.1460.0540.454
19940.1430.0540.422
19950.1410.0520.42
19960.1450.0560.463
19970.1510.0690.483
19980.1420.060.45
19990.1370.0540.392
20000.1430.0610.449
20010.1460.0670.489
20020.1370.0570.399
20030.1420.0670.433
20040.1390.0660.456
20050.1430.0660.462
20060.1360.060.46
20070.1360.0570.468
20080.1420.0660.517
20090.1330.0570.464
20100.1250.0480.423
20110.1340.0530.458
20120.1280.0470.446
20130.1450.0590.594
20140.1270.0460.485
20150.1330.0480.52
20160.1180.0340.483

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