Research Article

Size-Dependent Flowering in relation to Grazing in a Short-Lived Monocarpic Perennial

Table 4

Observed flowering probability for different size and growth classes in both grazing treatments. In parenthesis there is the predicted probability (maximum likelihood estimate). Size: the broadest rosette diameter (cm) in May 1998, before bolting. Growth: relative increase in size, in the period between February 1998 and May 1998. “—” indicates that no plant within the respective size and growth range was observed.
(a)

Winter grazing +
Growth (%)Size (cm)
5–1011–2021–33

0–500.13 (0.06) 0.80 (0.40) 1.00 (1.00)
51–1000.40 (0.19) 0.91 (1.00)
101–2000.54 (0.67) 1.00 (1.00) 1.00 (1.00)
201–4001.00 (1.00) 1.00 (1.00)

(b)

Winter grazing −
Growth (%)Size (cm)
5–1011–2021–33

0–500.05 (0.00) 0.56 (0.00)
51–1000.32 (0.00) 0.79 (0.68) 0.95 (1.00)
101–2001.00 (1.00) 0.98 (1.00)
201–3301.00 (1.00)