In the laboratory, C. acidophila from a Lusatian lake (L 129) and the closely related Cephalodella sp. may reach a maximum population growth rate (rmax, intrinsic growth rate) of 0.68 dat−1 at 20 °C (Weithoff, 2005), which is, as the authors pointed out, higher than rmax of most planktonic rotifer species under comparable resource conditions.
When the prey species exhibits a trade-off between defense against predation and maximum population growth rate (i.e., intrinsic rate of increase), environmental change that is detrimental to the predator results in reduced predation pressure on the prey due to decreased predator abundance (Fig. 1B).
In elephant populations, a unique combination of life-history traits prolong demographic response to environmental disturbance [30] and maximum population growth rate tends to be maintained until the very limit where forage resources can no longer support the population before density dependent feedbacks occur [1], [32], [33].
DOI: http://dx.doi.org/10.7554/eLife.06444.018 To determine whether these changes in network dynamics are seen across wider regions of parameter space we first quantified the presence of seizure like events from the maximum population firing rate in any 2 ms window over 10 s of simulation time (E-ratemax).
This study shows that in Jordan the cesarean delivery rate has increased steadily over the past decade by two-thirds, from 18% in 2002 to 30% in 2012, and was double the maximum population-based rate of 15% recommended by WHO.
Enqusit et al. [9] extended the energetic equivalence rule from mammal populations to plant populations based on the WBE theory, R = NmaxQ∝M3/4M−3/4 = M0, where R is the rate of resource use per unit area; Nmax is the maximum population density; Q is the average rate of resource use or the metabolic rate per individual; and M is the average individual mass.
We determined the maximum population size and maximum growth rate from the biomass growth data at 10 min intervals for 96 hours (420 580 nm optical density).
Phage-resistance was measured as the maximum population size and maximum growth rate of the bacteria in the presence of phages using the biomass growth data recorded for 96 hours at 10 min intervals (420 580 nm optical density).
Maximum growth rate and maximum population size were then measured in LB-sucrose medium (the same medium that was used in the evolutionary treatments) with Bioscreen C™ spectrophotometer (Growth Curves Ltd ,Helsinki, Finland).
These groups share features of their life cycles, as most of them are cyclical parthenogens, but they differ in their maximum growth rate, generation time, and maximum population density and size.
