Appendix S4.
Within-species relationships between plant size and seed mass. Data were compiled through a Biosis
search, performed on 7 Jan 2004 using the terms (“plant height” or “plant size”) and seed mass. This
search yielded 66 references, which gave information on the relationship between individual seed mass
and plant size for 14 species.
The following studies quantified the slope of the relationship between some continuous measure of
plant size (x) and seed mass (y).
Species
Slope
x
Alliaria petiolata
Cynoglossum
officinale
Digitalis purpurea
Epilobium dodonaei
Epilobium fleischeri
0.08
Banksia spinulosa
ns
plant mass
vegetative
mass
straw mass
stem height
stem height
height,
canopy
diameter
0.06
0.09
0.02
0.16
Transformation
R2
p
log-log
log-log
log-log
log-log
0.14
<0.05
0.16
ns
<0.01
Reference
Susko & Lovett-Doust,
263 2000
Klinkhamer & De Jong,
40
1993
99
Sletvold, 2002
1156 Stocklin & Favre, 1994
952 Stocklin & Favre, 1994
log-linear
0.05
ns
39
n
log-log
Vaughton & Ramsey,
1997
The following provided estimates of correlation, but did not present the slope of the relationship.
Species
Sabatia angularis
Oxypolis rigidior
Zizia aurea
Cicuta maculata
Cryptotaenia
canadensis
Sanicula gregaria
Osmorhiza claytoni
Osmorhiza
longistylis
Slope
ns
+ve
ns
+ve
x
Large/small
stem length
stem length
stem length
Transformation
log-binary
lin-lin
lin-lin
lin-lin
ns
+ve
ns
stem length
stem length
stem length
ns
stem length
R2
p
ns
<0.05
ns
<0.05
n
82
12
12
14
Reference
Dudash, 1991
Hendrix & Sun, 1989
Hendrix & Sun, 1989
Hendrix & Sun, 1989
lin-lin
lin-lin
lin-lin
0.09
ns
0.29
<0.05
<0.01 ns
18
19
19
Hendrix & Sun, 1989
Hendrix & Sun, 1989
Hendrix & Sun, 1989
lin-lin
0.07
21
Hendrix & Sun, 1989
0.36
0.02
0.32
ns
References (for Appendix S4)
Dudash, M.R. (1991) Plant size effects on female and male function in hermaphroditic Sabatia
angularis (Gentianaceae). Ecology, 72, 1004-1012.
Hendrix, S.D. & Sun, I.F. (1989) Inter- and intraspecific variation in seed mass in seven species of
umbellifer. New Phylologist, 112, 445-452.
Klinkhamer, P.G.L. & De Jong, T.J. (1993) Phenotypic gender in plants: Effects of plant size and
environment on allocation to seeds and flowers in Cynoglossum officinale. Oikos, 67, 81-86.
Sletvold, N. (2002) Effects of plant size on reproductive output and offspring performance in the
facultative biennial Digitalis purpurea. Journal of Ecology, 90, 958-966.
Stocklin, J. & Favre, P. (1994) Effects of plant size and morphological constraints on variation in
reproductive components in two related species of Epilobium. Journal of Ecology, 82, 735-746.
Susko, D.J. & Lovett-Doust, L. (2000) Plant-size and fruit-position effects on reproductive allocation
in Alliaria petiolata (Brassicaceae). Canadian Journal of Botany, 78, 1398-1407.
Vaughton, G. & Ramsey, M. (1997) Seed mass variation in the shrub Banksia spinulosa (Proteaceae) resource constraints and pollen source effects. International Journal of Plant Sciences, 158,
424-431.