Ecological Archives A015-043-A2

Penn Lloyd, Thomas E. Martin, Roland L. Redmond, Ute Langner, and Melissa M. Hart. 2006. Linking demographic effects of habitat fragmentation across landscapes to continental source–sink dynamics. Ecological Applications 15:1504–1514.

Appendix B. Summary of selected forest patch, landscape land cover and biogeographic statistics for each of the 30 BBIRD sites we used. Statistics at the patch, 1 km radius and 10 km radius scales represent the averages for all plots within each site.

   

Scale

Site1

 

Biogeographic

Patch

 Within 1 km radius o f plot centers

Within 10 km radius o f plot centers

Within 100 km radius of site center

Years of nest data

Region

Distance to cowbird core (km)

Forest patch size (ha)

Forest edge density

Nearest developed edge (m)

Forest cover (%)

Cropland cover (%)

Grass/pasture cover (%)

Developed cover (%)

Forest cover (%)

Cropland cover (%)

Grass/pasture cover (%)

Developed cover (%)

Forest cover (%)

Cropland cover (%)

Grass/pasture cover (%)

Developed cover (%)

1

1993–1995

East

1442

4188

1.66

147

71

4

8

28

39

7

14

58

46

11

28

51

2

1993–1997

East

1075

11404

1.84

150

75

6

12

23

51

10

21

48

41

21

28

58

3

1992–1993

East

1506

19812

0.66

453

97

0

3

3

70

3

26

30

59

8

29

40

4

1992–1996

East

971

22729

0.76

283

92

2

6

8

77

4

17

22

64

12

22

36

5

1991–1997

East

640

23354

0.48

348

98

1

1

2

84

7

9

16

31

39

25

68

6

1996–1999

East

1196

26211

0.27

611

97

1

2

3

86

2

12

14

81

2

15

18

7

1992–1996

East

1807

28224

0.38

663

97

1

0

1

91

5

2

8

81

8

6

18

8

1993–1998

East

1189

28484

0.25

568

98

1

1

2

92

1

5

7

83

2

13

16

9

1992–1994

East

930

29627

0.27

405

99

0

1

1

97

0

1

3

82

4

9

17

10

1997–1999

MidW

615

82

2.85

14

41

19

13

58

18

33

27

80

14

49

27

84

11

1991–1993

MidW

336

1139

1.52

90

58

18

24

42

30

37

31

68

36

27

25

58

12

1991–1996

MidW

167

7483

1.14

217

90

3

7

10

43

15

40

56

36

23

40

64

13

1996–1998

MidW

369

5274

1.88

379

75

5

12

20

49

17

28

48

33

34

31

66

14

1996–1999

MidW

334

13944

0.48

689

99

0

0

1

59

38

2

40

29

64

6

71

15

1992–1998

MidW

177

17284

0.67

786

87

0

0

0

82

0

1

2

72

6

10

17

16

1991–1993

MidW

438

27198

0.54

126

98

1

1

1

91

2

2

5

81

6

7

14

17

1993–1995

MidW

201

27445

0.27

753

97

0

1

1

91

0

7

8

76

4

16

22

18

1996–2000

MidW

603

24309

2.63

307

95

1

1

2

93

2

2

3

88

4

3

7

19

1991–1993

MidW

92

29356

0.19

455

100

0

0

0

95

0

4

5

63

3

32

36

20

1991–1995

MidW

192

29478

0.17

692

100

0

0

0

96

0

4

4

73

7

19

27

21

1992–1994

West

577

28

5.48

86

23

25

21

46

19

43

22

64

26

15

21

36

22

1992–1996

West

409

9369

0.92

136

47

0

25

25

38

0

43

44

29

1

56

57

23

1995–1999

West

687

4825

3.27

103

42

2

33

37

46

3

31

35

72

1

15

15

24

1992–1993

West

1544

14237

2.32

206

87

0

2

3

57

0

5

6

9

3

8

18

25

1997–1999

West

694

15076

0.66

346

86

0

2

2

61

5

23

29

74

3

14

17

26

1997–1999

West

587

21648

0.66

739

97

0

3

3

73

0

16

16

58

2

29

31

27

1995

West

1537

19591

0.97

249

84

0

2

2

73

0

4

4

33

13

17

32

28

1994–1996

West

857

22740

0.86

352

92

0

3

3

78

0

10

10

56

1

13

13

29

1996–2001

West

1058

25183

0.52

358

97

0

2

2

82

0

8

8

43

0

6

7

30

1992–1995

West

833

25520

0.45

625

98

0

0

1

92

0

2

2

80

2

7

10

Sites: (1) Western Maryland; (2) Northern Ohio; (3) Cayuta Lake and Finger Lakes National Forest, New York; (4) Wayne National Forest, Ohio; (5) Hoosier National Forest, Indiana; (6) SE Monongahela National Forest, West Virginia and George Washington National Forest, Virginia; (7) Mt. Mansfield and Lake Emerald State Park, Vermont; (8) NW Monongahela National Forest and Westvaco Wildlife and Ecosystem Research Forest, West Virginia; (9) Nantahala National Forest, North Carolina; (10) Pewaukee Lake, Wisconsin; (11) St. Croix River Valley, Minnessota; (12) Columbia, Missouri; (13) Upper Mississippi, Minnesota, Wisconsin, Illinois; (14) White River National Wildlife Refuge, Arkansas; (15) Chippewa National Forest, Minnesota; (16) Chequamegon National Forest, Wisconsin; (17) Ouachita National Forest, Arkansas; (18) Nicolet National Forest region, Wisconsin; (19) Ozark National Forest, Arkansas; (20) Ozarks, Missouri; (21) Snake River, Idaho; (22) NW Colfax County, New Mexico; (23) Bitterroot, Montana and Idaho; (24) San Bernadino National Forest, California; (25) Lolo National Forest, Montana; (26) Chamberlin Creek, Montana; (27) Sierra National Forest, California; (28) Payette National Forest, Idaho; (29) Coconino National Forest, Arizona; (30) and Priest Lake, Idaho.



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