Ecological Archives E087-055-A2

M. Zeiter, A. Stampfli, and D. M. Newbery. 2006. Recruitment limitation constrains local species richness and productivity in dry grassland. Ecology 87:942–951.

Appendix B. The sown species, their provenances, results of seed mass measurements, methods and results of germination tests, and the occurrence of established populations in the study sites. Origin of seed from Negrentino (N), Poma (P) and San Giorgio (S), seed mass of the 1998 collection, and deviation in seed mass of the 1999 collection (asterisks indicating significant differences in seed mass between years). Conditions for germination tests in the laboratory: seeds placed on top of paper (t) or between pleated paper (p); temperature regime, dormancy breaking pre-treatments, chilling (chill), scarification (scar), gibberellic acid (GA), and duration (D) of test. G is the number of germinated seeds (out of 100) and L the number of living, but dormant seeds at end of testing in 1998 (98) or 1999 (99). Occurrence of species in established vegetation within plots of study sites (p), at study site but not within the plots studied (l, local species pool) or in the surroundings of sites (r, regional species pool).


Species

Origin

Seed mass

  

Laboratory test

  

Occurrence
   

1998

99-98

  

Conditions

Pre-treatment (98/99)

D

  

G98

L98

G99

L99

        
   

(mg)

(%)

    

(°C)

  

(d)

  

(%)

(%)

(%)

(%)

  

N

P

S
                                   
                                   

Agrostis capillaris

N

0.089

5*

  

t

20-30

chill 10°  7d; KNO3

14

  

68

-

94

-

  

p

p

.

Anthyllis vulneraria

N

3.989

-2

  

p

20

scar

45

  

80

5

67

-

  

p

r

r

Asphodelus albus

P

13.579

-3*

  

p

20-30

chill 10°  7d

65

  

3

39

0

78

  

.

p

.

Brachypodium pinnatum

P

3.465

-7*

  

p

15-25

chill 10°  7d

42

  

56

12

54

-

  

p

p

p

Bromus erectus

NPS

5.329

9*

  

t

15-25

chill 10°  7d

14

  

92

2

93

-

  

p

l

p

Carex flacca

S

1.018

-31*

  

t

15-25

chill 5°  28d

21

  

0

61

3

45

  

.

.

p

Centaurea nigrescens

P

2.673

5*

  

t

15-25

.

28

  

80

12

67

16

  

l

p

r

Danthonia alpina

S

3.122

0

  

t

15-25

chill 10°  7d

42

  

2

79

12

47

  

.

.

p

Dianthus carthusianorum

P

0.824

5*

  

t

20-30

chill 10°  7d

14

  

88

9

94

-

  

p

r

.

Dorycnium herbaceum

S

1.551

-1

  

t

20

scar / -

42

  

21

-

6

64

  

.

.

r

Galium rubrum

P

0.523

4*

  

t

15-25

chill 10°  7d

42

  

41

10

74

-

  

p

r

.

Helianthemum nummularium

P

1.114

5*

  

t

20-30

KNO3

28

  

4

88

5

-

  

p

l

p

Hypochaeris radicata

P

1.164

3

  

p

15-25

GA

28

  

91

7

94

5

  

p

l

.

Peucedanum oreoselinum

P

4.674

-9*

  

p

20-30

chill 10°  7d

42

  

16

67

24

-

  

r

p

p

Phyteuma betonicifolium

P

0.041

21*

  

t

20-30

chill 5°  7d; KNO3

70

  

82

-

46

-

  

p

p

.

Plantago lanceolata

N

1.800

-5*

  

p

20-30

- / chill 5°  7d; GA

28

  

12

84

79

7

  

p

r

.

Primula veris

N

0.778

-4*

  

t

20-30

chill 10°  7d; KNO3

21

  

0

100

0

100

  

p

.

.

Rhinanthus alectorolophus

N

2.573

11*

  

p

15-25

chill 5° 28d

45

  

0

82

5

86

  

p

r

r

Sanguisorba minor

N

5.129

3

  

p

15-25

GA

28

  

59

28

51

-

  

p

r

p

Scabiosa columbaria

N

1.902

8*

  

p

15-25

.

28

  

87

-

83

-

  

p

r

r

Silene nutans

N

0.442

14*

  

t

15-25

.

28

  

81

10

97

-

  

p

p

.

Thalictrum minus

N

1.662

13*

  

t

15-25

chill 5°  7d; GA

42

  

39

11

55

11

  

p

.

.

[Back to E087-055]