Ecological Archives E096-098-A1

Luanna L. Dobson, Frank A. La Sorte, Lisa L. Manne, and Bradford A. Hawkins. 2015. The diversity and abundance of North American bird assemblages fail to track changing productivity. Ecology 96:11051114. http://dx.doi.org/10.1890/14-0057.1

Appendix A. Spatial regression slope and r² values for each year from 1982 to 2006.

Table A1. Spatial regression slope and r² values for each year from 1982 to 2006. Regressions were performed using a linear fit for richness vs. NDVI, abundance vs. NDVI, and log fit for richness vs. abundance.

 

Richness vs. NDVI
(linear)

Abundance vs. NDVI
(linear)

Richness vs. Abundance
(power function)

Year

Slope

r²

Slope

r²

Slope

r²

1982

41.35

0.32

23.66

0.00

0.20

0.08

1983

45.44

0.36

6.12

0.00

0.22

0.10

1984

41.81

0.31

-11.08

0.00

0.23

0.11

1985

40.37

0.31

0.22

0.00

0.24

0.12

1986

42.02

0.32

53.39

0.00

0.25

0.12

1987

44.86

0.35

88.76

0.00

0.29

0.15

1988

46.63

0.38

48.61

0.00

0.27

0.13

1989

46.33

0.39

92.57

0.00

0.31

0.19

1990

47.43

0.40

222.42

0.02

0.36

0.25

1991

47.96

0.39

212.27

0.01

0.35

0.22

1992

44.64

0.38

177.28

0.01

0.32

0.18

1993

45.47

0.34

173.89

0.01

0.37

0.24

1994

41.41

0.30

170.21

0.01

0.36

0.24

1995

44.92

0.34

196.59

0.01

0.37

0.23

1996

40.35

0.33

165.15

0.01

0.37

0.26

1997

41.48

0.33

162.25

0.01

0.35

0.23

1998

43.93

0.34

198.17

0.01

0.34

0.21

1999

40.71

0.29

249.99

0.02

0.34

0.23

2000

41.29

0.31

282.86

0.03

0.39

0.29

2001

42.92

0.34

297.14

0.03

0.38

0.27

2002

40.69

0.32

253.16

0.02

0.40

0.33

2003

40.29

0.30

242.33

0.02

0.36

0.26

2004

43.04

0.32

268.29

0.02

0.37

0.27

2005

43.70

0.32

225.01

0.02

0.37

0.26

2006

41.71

0.32

207.26

0.01

0.35

0.24

min:

33.36

0.32

-11.08

0.00

0.20

0.08

max:

47.82

0.42

297.14

0.03

0.40

0.33

mean:

39.85

0.37

160.26

0.01

0.33

0.21


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