Graph

Lapland Longspur
(Calcarius lapponicus)

Additional information on: Christmas Bird Count (CBC)

Listing of the threshold values that appear on the graph
Population below lowest acceptable level		Goal
9.126		25.622

Listing of the individual data points that make up the graph
Year	Annual index	Lower limit	Upper limit
1970	14	3.37	209
1971	11	2.85	75.2
1972	8.94	2.36	64.7
1973	11.6	3.15	73.9
1974	9.36	2.49	63.4
1975	8.01	2.05	58.5
1976	9.59	2.92	58.7
1977	11.4	3.26	68.5
1978	15.5	3.68	355
1979	8.27	2.1	58
1980	9.58	2.65	58.6
1981	15.9	4.24	91.8
1982	12.6	3.41	69.6
1983	18.3	5.46	103
1984	10.7	2.9	62
1985	13.9	4.23	72.6
1986	8.82	2.14	55.9
1987	12	3.32	63.5
1988	9.35	2.46	57.4
1989	15.5	4.83	75.4
1990	10.6	3.06	61.5
1991	9.07	2.16	58.5
1992	11.8	3.14	66.2
1993	13	3.66	66
1994	13.8	3.96	66.9
1995	13.6	3.86	70.2
1996	19.7	5.56	96.4
1997	13.2	3.75	68.4
1998	20.6	6.76	95.1
1999	18.7	6.32	83.8
2000	20.7	7.54	90.6
2001	17.3	5.14	84.8
2002	16.1	4.49	83.3
2003	16.9	4.7	83.7
2004	25.6	7.16	128
2005	17.9	5.92	85.3
2006	24.7	7.22	123
2007	22.1	6.48	106
2008	22.8	7.26	108
2009	32.8	10.2	167
2010	24.9	8.29	114
2011	19.2	5.19	102
2012	30	9.54	147
2013	32.8	11.4	150
2014	19.8	5.29	112
2015	23.1	6.34	119
2016	29.2	9.02	141

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