Table 1.
Empirically determined parameter point estimates and plausible limits. Values in italics generate dynamics closest to those observed (modified parameter set).
| symbol | parameter | unit | lower plausible limit | point estimate | upper plausible limit | data source |
|---|---|---|---|---|---|---|
| a | intrinsic fecundity of adult hares (in the absence of parasites) | year−1 | 1.8 | 2.3 | 2.8 | Newey et al. (2004) |
| δ | parasite-induced reduction in hare fecundity | hare parasite−1 | 0 | 0.000016 | 0.0001 | Newey & Thirgood (2004) |
| b | intrinsic mortality of adult hares (in the absence of parasites) | year−1 | 0.08 | 0.35 | 0.61 | Newey & Thirgood (2004) |
| α | Parasite-induced hare mortality | year−1 | 0 | 0.000008 | 0.0001 | Newey & Thirgood (2004) |
| λ | parasite fecundity | year−1 | 80 | 1000 | 2800 | Hobbs (unpublished) and Flux (1970), see S1 |
| H0 | transmission inefficiency constant | hare | 13 500 | 38 200 | 66 800 | Newey et al. (2004, 2005) and Newey & Thirgood (2004) |
| μ | adult parasite mortality | year−1 | 0 | 0 (0.1 for elasticity analysis) | 1.2 | Dobson & Hudson (1992), based on T. tenuis |
| k | negative binomial parameter/degree of overdispersion | 0.5 | 0.57 (0.5 in model, see S2) | 2 | Newey et al. (2005) |