As an index of population excitability, we calculated a ratio consisting of the minimal stimulation intensity (V) which evoked a population spike divided by the stimulation intensity which induces fEPSPs of maximal initial slope.
Because of the mobility of horsemen, raiding parties could gather from great distances, and thus the size of these groups (even if that were known) did not provide a reliable index of population density because their origins were unknown.
Through the comprehensive interference index of population control (CIIPC), the GM was calculated and the percentages were 30.4, 50.3, 63.8, 77.2, and 90.6% for the six tested concentrations respectively.
GM is the mortality or decrease of the pest numbers at various growth stages (egg, larva, pupa, and adult) in one generation after treating the second instar larvae of S. exigua with Bt CAB109, which was calculated according to the theory of interference index of population control (IIPC) defined by Xiong-fei et al. (2000).
Sums of EXT values of 1000 worms for each condition were calculated as an index of population growth, and Student's t test was used to compare growth.
We found a significant association between male song diversity and an index of population viability, the annual rate of population change (GLMM: F1, 136 = 20.51, P<0.001; Parameter Estimate±SE = 1.25±0.27).
Stores like Jewel and Dominick's used traditional indexes of population density and median family income and decided to stay away from the neighborhood or to leave it.
The computer program VORTEX [29] was used to simulate the stochastic and deterministic forces affecting the Ebro Valley meta-populations and calculate indices of population viability.
The global indices of population differentiation were very high, up to 0.843 and 0.975 for GST and NST, respectively.
