Ecological Archives A015-005-A1

Hong Liu, Eric S. Menges, and Pedro F. Quintana-Ascencio. 2005. Population viability analyses of Chamaecrista keyensis: effects of fire season and frequency. Ecological Applications 15:210–221.

Appendix A. Fecundity and fertility calculations for matrix building of Chamaecrista keyensis.

We estimated fecundity, the mean number of seeds per plant per year, by multiplying the mean number of fruits per plant per year and mean number of seeds per fruit. Site and year-specific mean numbers of seeds per fruit were used for fecundity calculations when possible. Otherwise, we used data from the most similar plots in terms of time since fire, fire season, and block (Table A1). Fecundity of plots that were burned after fruit production (Table A2) were subject to a fire survival factor (18%, percentage of seeds surviving a fire event, see Seed mortality due to fire for details).

We estimated percent seed germination within the first year and percent seeds remaining dormant from two seed bank experiments. One was the bagged-seed experiment which provided estimates of percent germination within the first year (G1), percent of seeds dormant over one year (V1) (Fig. A1 and Table A3), percent of dormant seeds germinated the second year (G2), and percent of dormant seeds that remained dormant for another year or more (V2) (Table A3). Because some seeds were missing, we calculated the above estimates in two ways: either by counting missing seeds as germinated in the first year (“bagged optimistic” G1), or by omitting missing seeds in the calculation (“bagged pessimistic” G1) (Table A3).

The other experiment used to estimate first year percent seed germination (G1) was the sown-seed experiment (Table A4). Since the sown-seed experiments were carried out only in four plots for one year, while the bagged-seed experiments were done in all blocks, we generated correction factors from the four plots having both bagged- and sown-seed experiments (Table A4). We then multiplied these correction factors by G1 derived from bagged seeds for plots and years where only the bagged seed experiment was conducted. This process generated two additional percent germination scenarios: optimistic G1 and pessimistic G1, each adjusted by sown seed factors (Table A6).

The sown-seed experiment also generated estimates of seedling survival to the first census (SS). We obtained additional seedling survival rates using data from naturally occurring seedlings marked in the census plots of all treatment plots (Table A5). These two estimations of SS did not agree with each other. To apply the sown seed SS scenario to other sites/years where the experiment was not conducted, we derived correction factors by taking the ratio of SS sown seeds to SS natural (Table A5). These correction factors were then multiplied by the SS natural for plots and years where only the bagged seed experiment was conducted. This process generated two SS scenarios: SS sown and SS natural (Table A6).

Scenarios with sown-seed germination estimates (scenarios 1–4) projected correctly (i.e., they were not significantly different from observed) > 50% of the times, while scenarios with bagged-seed germination estimates (Scenarios 5–8) produced correct projections < 20% of the time (see underline in Table A7). Bagged seeds were overly optimistic predictors. Scenario 3 (Sown optimistic germination and sown seedling survival) produced the largest number of correct projections (24 of 30 times, see underline in Table A7), and the most projections that were the best among the 8 scenarios (13 of 30 times, see bolding in Table A7). We therefore chose scenario 3 as the base scenario for further deterministic and stochastic analyses.

When lacking, we pooled data on fertility from the most similar plot in terms of fire history and block (Table A8). Final fertility elements, which includes FS (Fecundity * G1 * SS), FSB (Fecundity * V1), SBS (G2 *SS), SBSB (V2) of scenario 3 (Sown optimistic G and sown SS) are presented in Table A9. Overall, we constructed 8 sets of matrices, each composed of 30 matrices and each represented a fertility scenario (e. g. Appendix D).


Table A1. Sample sizes for mean number of seeds per fruit.

Plot

Year

Tsf

Number of seeds/ fruit

Sampled fruits

Pool site (year)

OC

1998

15

6.37

0

OC (1999)

OS

1998

15

6.37

0

OC (1999)

OW

1998

15

6.37

0

OC (1999)

PC

1998

30

5.91

0

PC (1999)

PS

1998

30

5.91

0

PC (1999)

PW

1998

30

5.91

0

PC (1999)

OC

1999

15

6.37

75

-

OS

1999

1

6.51

92

-

OW

1999

1

6.86

81

-

PC

1999

30

5.91

34

-

PS

1999

1

5.91

0

PC (1999)

PW

1999

1

5.91

0

PC (1999)

IC

1999

15

6.41

111

-

IS

1999

15

6.41

0

IC (1999)

IW

1999

15

6.41

0

IC (1999)

DC

1999

30

6.58

12

-

DS

1999

30

6.2

0

DC (1999) & DW (1999)

DW

1999

30

6.1

41

-

OC

2000

15

6.94

48

-

OS

2000

2

4.11

9

-

OW

2000

2

6.39

124

-

PC

2000

30

5.91

0

PC (1999)

PS

2000

2

5.91

0

PS (1999)

PW

2000

2

5.91

0

PW (1999)

IC

2000

15

7.21

19

-

IS

2000

1

6.64

1

DS (2000)

IW

2000

15

7.21

0

IC (2000)

DC

2000

30

5.61

23

-

DS

2000

1

6.73

60

-

DW

2000

30

5.73

3

DC (2000)

OC

2001

15

6.94

0

OC (2000)

OS

2001

3

4.11

0

OS (2000)

OW

2001

3

6.39

0

OW (2000)

PC

2001

30

5.91

0

PC (2000)

PS

2001

3

5.91

0

PS (2000)

PW

2001

3

5.91

0

PW (2000)

IC

2001

15

7.21

0

IC (2000)

IS

2001

2

6.64

0

IS (2000)

IW

2001

1

6.64

0

IW (2000)

DC

2001

30

5.61

0

DC (2000)

DS

2001

2

6.73

0

DS (2000)

DW

2001

30

5.73

0

DW (2000)

   Notes: Data from the most similar site and /or year in terms of site location and time since burn were pooled if fewer than 5 fruits were sampled. Plot abbreviations are given in Table 1 in main text. Tsf = time since fire (years), Bold = pooled, - = not pooled.


Table A2. Fecundity worksheet.

Plot

Year

Tsf

Mean # of sds per frt

Mean number of fruit

Fecundity (mean number of seeds)

 Per sf

Per mf

Per lf

Per sf

Per mf

Per lf

OC

1998

15

6.37

2.02

2.60

7.13

12.87

16.58

45.42

OS

1998

0

6.37

2.17

3.23

6.91

2.44

3.64

7.78

OW

1998

0

6.37

2.29

2.43

6.67

2.57

2.73

7.50

PC

1998

30

5.91

1.43

2.55

5.63

8.44

15.08

33.25

PS

1998

0

5.91

2.11

2.20

4.41

0.56

1.32

4.65

PW

1998

0

5.91

1.00

1.50

2.67

0.60

1.30

3.12

OC

1999

15

6.37

2.00

3.57

8.11

12.74

22.74

51.66

OS

1999

1

6.51

2.44

3.17

6.50

15.88

20.64

42.32

OW

1999

1

6.86

2.14

5.19

10.18

14.68

35.60

69.83

PC

1999

30

5.91

1.38

2.10

4.48

8.16

12.41

26.48

PS

1999

1

5.91

1.33

3.13

11.00

7.86

18.50

65.01

PW

1999

1

5.91

1.43

3.08

7.39

8.45

18.20

43.67

IC

1999

15

6.41

2.40

2.85

6.04

15.38

18.27

38.72

IS

1999

0

6.41

1.00

2.50

2.20

1.13

2.83

2.49

IW

1999

15

6.41

1.25

2.83

3.40

8.01

18.14

21.79

DC

1999

30

6.58

2.22

6.60

9.48

14.61

43.43

62.38

DS

1999

0

6.2

1.87

3.75

5.75

9.05

21.02

33.74

DW

1999

30

6.1

2.00

3.38

9.33

12.20

20.62

56.91

OC

2000

15

6.94

1.29

2.25

3.62

8.95

15.62

25.12

OS

2000

2

4.11

1.33

3.50

6.25

5.47

14.39

25.69

OW

2000

2

6.39

1.80

2.47

6.61

11.50

15.78

42.24

PC

2000

30

5.91

1.30

1.86

3.63

7.68

10.99

21.45

PS

2000

2

5.91

1.00

2.80

5.73

5.91

16.55

33.86

PW

2000

2

5.91

1.33

2.84

6.04

7.86

16.78

35.70

IC

2000

15

7.21

1.91

1.47

4.14

13.77

10.60

29.85

IS

2000

1

6.64

1.00

3.00

13.54

6.64

19.92

89.91

IW

2000

0

7.21

1.60

1.14

1.67

1.76

2.35

3.52

DC

2000

30

5.61

2.00

2.40

6.73

11.22

13.46

37.76

DS

2000

1

6.73

2.00

4.72

13.54

13.46

31.77

91.12

DW

2000

30

5.73

2.08

1.91

8.13

11.92

10.94

46.58

OC

2001

15

6.94

1.00

3.00

3.20

6.94

20.82

22.21

OS

2001

3

4.11

1.50

1.60

4.20

6.17

6.58

17.26

OW

2001

3

6.39

1.67

2.77

5.35

10.67

17.70

34.19

PC

2001

30

5.91

2.00

2.67

1.00

11.82

15.78

5.91

PS

2001

3

5.91

1.50

1.67

6.00

8.87

9.87

35.46

PW

2001

3

5.91

2.00

2.16

7.79

11.82

12.77

46.04

IC

2001

15

7.21

1.00

1.62

4.85

7.21

11.68

34.97

IS

2001

2

6.64

1.67

2.25

4.00

11.09

14.94

26.56

IW

2001

1

6.64

1.50

2.00

3.00

9.96

13.28

19.92

DC

2001

30

5.61

1.00

2.57

6.00

5.61

14.42

33.66

DS

2001

2

6.73

2.00

3.74

15.47

13.46

25.17

104.11

DW

2001

30

5.73

1.00

2.30

1.86

5.73

13.18

10.66

   Notes: Plot abbreviations are given in Table 1 in main text. Bold numbers indicate pooled data. Tsf = time since last fire, sf = small flowering plant, mf = medium flowering plant, lf = large flowering plant.

Fecundity has been multiplied by fire survival factor (18%).

Since total mature fruit production in 1998 were not known, three regression functions were formulated based on 1999 data: Ln(total fruit 98) = 0.665 +0.149 * No. of inmature (if  No. of inmature > 0). Or, Ln(total fruit 98) = -0.587+1.323 * No. of flower (if No. of inmature fruit <1, and No. of flower > 0). Or, Ln (total fruit 98) = -0.261 + 0.176 * No. of flower bud (if No. of inmature and No. of flower < 1 and No. of flower bud >0).


Table A3. Proportional fates of bagged seeds of 1999–2001, and 2000–2001 experiments.

Plot

# of years in field

Mean percent germination

Mean percent dormant

Mean percent dead

   

pess

opt

pess

opt

pess

opt

IC

1 (99-00)

0.840

0.940

0.148

0.055

0.0125

0.005

IS

1 (99-00)

0.539

0.810

0.461

0.190

0

0

DC

1 99-00)

0.844

0.905

0.156

0.095

0

0

DS

1 (99-00)

0.537

0.670

0.463

0.330

0

0

IC

2 (99-01)

0.957

0.983

0.037

0.015

0.006

0.003

IS

2 (99-01)

0.924

0.993

0.076

0.008

0

0

DC

2 (99-01)

0.967

0.995

0.033

0.005

0

0

DS

2(99-01)

0.911

0.993

0.073

0.005

0

0.003

OC

1 (00-01)

0.687

0.850

0.148

0.079

0.165

0.071

OS

1 (00-01)

0.629

0.843

0.313

0.129

0.058

0.028

OW

1 (00-01)

0.571

0.886

0.188

0.071

0.241

0.043

PC

1 00-01)

0.603

0.764

0.337

0.207

0.060

0.029

PS

1 (00-01)

0.437

0.743

0.352

0.207

0.211

0.050

PW

1 (00-01)

0.425

0.786

0.519

0.200

0.056

0.014

IC

1 (00-01)

0.284

0.640

0.665

0.335

0.051

0.025

IS

1 (00-01)

0.397

0.685

0.515

0.265

0.088

0.050

DC

1 (00-01)

0.724

0.810

0.269

0.185

0.007

0.005

DS

1 (00-01)

0.180

0.625

0.698

0.320

0.122

0.055

IC

1

0.791

0.773

0.210

0.227

0

0

IS

1

0.836

0.961

0.164

0.040

0

0

DC

1

0.787

0.947

0.213

0.053

0

0

DS

1

0.808

0.977

0.156

0.015

0.0361

0.0076

   Notes: Pessimistic scenario (pess) refers to discounting the missing seeds in calculation while optimistic scenario (opt) refers to assuming that the missing seeds have germinated. Plot abbreviations are given in Table 1 in main text. Bold indicates 1st year germination (G1) or dormancy (V1); non-bold indicates cumulative germination or dormancy over 2 years. Italic indicates 2nd year germination (G2), and dormancy (V2).

Inferred 2nd year seed germination and dormancy parameters based on bagged seed experiments. Percent germination of 2nd yr = (Percent germination of two yrs – percent germination of 1st yr) / percent dormant of 1st year. Percent dead of 2nd year = (percent dead of two yrs – percent dead of 1st yr) / percent dormant of 1st yr. Percent dormant of 2nd yr = 1 – percent germination of 2nd yr – percent dead of 2nd yr.

Zero was substituted for a small negative value.


Table A4. Comparisons of mean 1st yr percent germination (G1) of bagged vs. sown seeds in 2000-01 experiment.

Plot

Bagged 1st yr percent germination

Sown 1st yr percent germination

G correction factor (sown pg / bagged pg)

 

pessimistic

optimistic

 

pessimistic

optimistic

IC

0.284

0.640

0.115

0.405

0.180

IS

0.397

0.685

0.145

0.365

0.212

DC

0.724

0.810

0.095

0.131

0.162

DS

0.180

0.625

0.045

0.25

0.072

Mean

0.405

0.690

0.10

-

-

Std dev

0.346

0.267

0.121

-

-

Range

0.0-1.0

0.0-1.0

0.0-0.40

-

-

Median

0.400

0.700

0.050

-

-

N

36

40

40

-

-

   Notes: Plot abbreviations are given in Table 1 in main text. pg = percent germination.

 

Table A5. Comparisons of seedling survival (SS) of naturally occurred seedlings vs. sown seeds in 2000–2001 (inferred from the toothpick marked seedlings only).

Plot

SS sown seeds

SS natural

SS correction factor

(sown SS / natural SS)

IC

0.261

0.444

0.588

IS

0.233

0.212

1.099

DC

0.238

0.250

0.952

DS

0.533

0.204

2.613

Mean

0.357

0.331

-

Std dev

0.430

0.432

-

Range

0.0-1.0

0.0-1.0

-

Median

0.10

0.0

-

N

28

49

-

   Notes: Plot abbreviations are given in Table 1 in main text. Bold indicates pooled data.

 

Table A6. Fertility scenarios of matrix models of Chamaecrista keyensis.

Scenario number

Germination type (G)

Seedling survival to first census type (SS)

1

Sown pessimistic

Sown

2

Sown pessimistic

Natural

3

Sown optimistic

Sown

4

Sown optimistic

Natural

5

Bagged pessimistic

Sown

6

Bagged pessimistic

Natural

7

Bagged optimistic

Sown

8

Bagged optimistic

Natural


Table A7. Likelihood ratio P values of Chi-square tests of model predictions vs. observed population structures.

Site

P year

Scen1

Scen2

Scen3

Scen4

Scen5

Scen6

Scen7

Scen8

OC

1999

0.438

0.002

0.988

0.788

<0.001

<.0001

<0.001

<.0001

2000

0.999

0.665

0.237

0.986

0.035

<.0001

0.004

<.0001

2001

0.303

0.002

0.995

0.867

<0.001

<.0001

<0.001

<.0001

OS

1999

<0.001

<0.001

0.048

0.048

<0.001

<.0001

<0.001

<.0001

2000

0.626

0.616

0.716

0.048

<0.001

.052

0.015

.03

2001

0.002

0.002

0.028

0.028

<0.001

<.0001

<0.001

<.0001

OW

1999

0.57

0.915

0.781

0.273

0.004

.15

0.058

.691

2000

0.791

0.866

0.869

0.84

<0.001

<.0001

<0.001

<.0001

2001

0.02

0.042

0.681

0.824

<0.001

<.0001

<0.001

<.0001

PC

1999

0.944

0.928

0.98

0.974

<0.001

<.0001

<0.001

<.0001

2000

0.728

0.834

0.76

0.796

<0.001

<.0001

<0.001

<.0001

2001

0.036

0.023

0.095

0.089

<0.001

<.0001

<0.001

<.0001

PS

1999

0.061

0.226

0.992

1

<0.001

<.0001

<0.001

<.0001

2000

0.096

0.519

0.928

0.931

<0.001

<.0001

<0.001

<.0001

2001

0.000

<0.001

0.105

0.222

<0.001

<.0001

<0.001

<.0001

PW

1999

0.922

0.919

0.844

0.262

<0.001

.886

0.001

.947

2000

0.909

0.8

0.354

0.043

<0.001

<.0001

<0.001

.0001

2001

0.000

<0.001

0.085

0.54

<0.001

<.0001

<0.001

.0001

IC

2000

0.54

<0.001

0.008

<0.001

<0.001

<.0001

<0.001

<.0001

2001

<0.001

<0.001

0.545

0.001

<0.001

<.0001

<0.001

<.0001

IS

2000

0.87

0.738

0.326

0.326

0.997

.998

0.945

.993

2001

0.858

0.858

0.672

0.672

0.999

.999

0.997

.999

IW

2000

0.379

0.004

0.994

0.713

<0.001

<.0001

<0.001

<.0001

2001

0.186

0.108

0.024

0.017

0.872

.306

0.472

.074

DC

2000

<0.001

<0.001

0.001

<0.001

<0.001

<.0001

<0.001

<.0001

2001

0.019

0.012

0.051

0.036

<0.001

<.0001

<0.001

<.0001

DS

2000

0.141

0.667

0.242

0.018

<0.001

<.0001

<0.001

<.0001

2001

<0.001

0.065

<0.001

0.045

<0.001

<.0001

<0.001

<.0001

DW

2000

0.972

0.951

0.99

0.985

<0.001

<.0001

<0.001

<.0001

2001

0.107

0.067

0.062

0.038

<0.001

<.0001

<0.001

<.0001

No. of  good projections

20

17

24

18

3

6

4

5

No. of  best projections

3

5

13

7

2

2

0

2

Notes: Underline indicates a non-significant value at 0.05 level (good projection) and bold indicates the scenario with the highest P value among the 8 scenarios (the best projection among the 8 scenarios).

 

Table A8. Seed bank parameters for fertility scenario 3 (Sown optimistic G and sown SS) and data pooling information.

Plot

year

Tsf

G1

V1

G1&V1 Pooled site

G2

V2

G2&V2 pooled site

SS-sown

SS pooled site

OC

98-99

0

0.153

0.079

OC 00-01

0.139

0.227

IC 99-00

0.141

OC 99-00

OS

98-99

0

0.178

0.190

OS 00-01

0.203

0.039

IS 99-00

0.677

OS 99-00

OW

98-99

10

0.187

0.190

OW 00-01

0.203

0.039

IS 99-00

0.338

OW 99-00

PC

98-99

20

0.090

0.207

PC 00-01

0.111

0.053

DC 99-00

0.417

PC 99-00

PS

98-99

0

0.053

0.330

PS 00-01

0.070

0.015

DS 99-00

0.677

PS 99-00

PW

98-99

0

0.057

0.330

PW 00-01

0.070

0.015

DS 99-00

0.677

PW 99-00

OC

99-00

10

0.153

0.079

OC 00-01

0.139

0.227

IC 99-00

0.141

-

OS

99-00

1

0.178

0.129

OS 00-01

0.203

0.039

IS 99-00

0.677

-

OW

99-00

1

0.187

0.071

OW 00-01

0.203

0.040

IS 99-00

0.338

-

PC

99-00

20

0.090

0.207

PC 00-01

0.111

0.053

DC 99-00

0.417

-

PS

99-00

1

0.053

0.207

PS 00-01

0.070

0.015

DS 99-00

0.677

-

PW

99-00

1

0.057

0.200

PW 00-01

0.070

0.015

DS 99-00

0.677

-

IC

99-00

10

0.169

0.055

-

0.139

0.227

-

0.292

-

IS

99-00

0

0.171

0.190

-

0.203

0.039

-

0.229

-

IW

99-00

10

0.169

0.055

IC 99-00

0.139

0.227

IC 99-00

0.184

-

DC

99-00

20

0.106

0.095

-

0.111

0.053

-

0.458

-

DS

99-00

0

0.048

0.330

-

0.070

0.015

-

0.677

-

DW

99-00

20

0.106

0.095

DC 99-00

0.111

0.053

DC 99-00

0.549

-

OC

00-01

10

0.153

0.079

-

0.139

0.227

IC 99-00

0.206

-

OS

00-01

2

0.178

0.129

-

0.203

0.039

IS 99-00

0.677

-

OW

00-01

2

0.187

0.071

-

0.203

0.040

IS 99-00

0.473

-

PC

00-01

20

0.090

0.207

-

0.111

0.053

DC 99-00

0.430

-

PS

00-01

2

0.053

0.207

-

0.070

0.015

DS 99-00

0.677

-

PW

00-01

2

0.057

0.200

-

0.070

0.015

DS 99-00

0.677

-

IC

00-01

10

0.115

0.335

-

0.139

0.227

IC 99-00

0.261

-

IS

00-01

1

0.145

0.265

-

0.203

0.039

IS 99-00

0.233

-

IW

00-01

0

0.145

0.190

IS 00-01

0.203

0.039

IS 99-00

0.212

-

DC

00-01

20

0.095

0.185

-

0.111

0.053

DC 99-00

0.238

-

DS

00-01

1

0.045

0.320

-

0.070

0.015

DS 99-00

0.533

-

DW

00-01

20

0.095

0.185

DC 00-01

0.111

0.053

DC 99-00

0.357

-

Notes: Plot abbreviations are given in Table 1 in main text. Tsf = time since fire (years). Italic = correction factor applied, bold = pooled data.

Derived sown-SS that were greater than 0.677, the maximum SS observed in field, were set to 0.677.


Table A9. Matrix fertility elements for scenario 3 (Sown optimistic G and sown SS).

Plot

Year

Tsf

FS

FSB

SBS

SBSB

sf

mf

lf

sf

mf

lf

OC

98-99

0

0.278

0.358

0.982

1.011

1.302

3.569

0.020

0.227

OS

98-99

0

0.295

0.440

0.940

0.464

0.692

1.478

0.138

0.039

OW

98-99

10

0.163

0.173

0.476

0.489

0.519

1.426

0.069

0.039

PC

98-99

20

0.316

0.564

1.244

1.749

3.124

6.886

0.046

0.053

PS

98-99

0

0.020

0.048

0.168

0.185

0.436

1.533

0.048

0.015

PW

98-99

0

0.023

0.050

0.120

0.199

0.429

1.030

0.048

0.015

OC

99-00

10

0.275

0.491

1.116

1.001

1.787

4.059

0.020

0.227

OS

99-00

1

1.919

2.493

5.111

2.043

2.654

5.442

0.138

0.039

OW

99-00

1

0.931

2.258

4.430

1.049

2.543

4.988

0.069

0.040

PC

99-00

20

0.305

0.464

0.991

1.689

2.570

5.483

0.046

0.053

PS

99-00

1

0.285

0.670

2.354

1.628

3.831

13.464

0.048

0.015

PW

99-00

1

0.324

0.697

1.673

1.690

3.641

8.735

0.048

0.015

IC

99-00

10

0.758

0.900

1.907

0.846

1.005

2.129

0.040

0.227

IS

99-00

0

0.045

0.111

0.098

0.215

0.538

0.473

0.047

0.039

IW

99-00

10

0.916

2.074

2.492

0.441

0.998

1.199

0.094

0.227

DC

99-00

20

0.710

2.111

3.032

1.388

4.126

5.926

0.051

0.053

DS

99-00

0

0.296

0.686

1.102

2.986

6.936

11.133

0.048

0.015

DW

99-00

20

0.711

1.202

3.319

1.159

1.959

5.407

0.061

0.053

OC

00-01

10

0.281

0.491

0.789

0.703

1.227

1.974

0.029

0.227

OS

00-01

2

0.660

1.738

3.103

0.703

1.850

3.303

0.138

0.039

OW

00-01

2

1.019

1.399

3.743

0.822

1.127

3.017

0.096

0.040

PC

00-01

20

0.296

0.424

0.828

1.591

2.277

4.443

0.048

0.053

PS

00-01

2

0.214

0.599

1.226

1.224

3.427

7.013

0.048

0.015

PW

00-01

2

0.301

0.643

1.367

1.572

3.357

7.139

0.048

0.015

IC

00-01

10

0.413

0.318

0.896

4.613

3.551

10.000

0.036

0.227

IS

00-01

1

0.224

0.673

3.037

1.760

5.279

23.825

0.047

0.039

IW

00-01

0

0.054

0.072

0.108

0.334

0.446

0.669

0.043

0.039

DC

00-01

20

0.254

0.304

0.854

2.076

2.491

6.985

0.026

0.053

DS

00-01

1

0.323

0.762

2.186

4.307

10.165

29.160

0.038

0.015

DW

00-01

20

0.404

0.371

1.580

2.205

2.025

8.618

0.040

0.053

   Notes: Plot abbreviations are given in Table 1 in main text. Bold indicates pooled data. Tsf = categories of time since fire. FS (fecundity to seedling) = fecundity*G1*SS; FSB (fecundity to seed bank) = fecundity *V1; SBS (seed bank to seedling) = G2*SS, SBSB (seed bank to seed bank) = V2. Sf = small reproductive plant, mf = medium reproductive plant, lf = large reproductive plant.

 

 
    FIG. A1. Conceptual flow chart between fecundity (current year's seed crop), seed bank, and realized fertility (seedling). G1 is the percent germination of fresh seeds within the first year. SS is seedling survival up to the first annual census. V1 is the percentage of fresh seeds remaining dormant for one year or more. V2 is the proportion of the first year seed bank remaining dormant for another year or more. G2 is the proportion of the first year seed bank that germinated within the second year. FS = fecundity to seedling, FSB = Fecundity to seed bank, SBSB = seed bank survival, SBS = seed bank to seedling.



[Back to A015-005]