Sentence examples for demographic constraint from inspiring English sources

The demographic constraint on African elephant mtDNA renders it a poor genetic marker for inferring population structure and taxonomy, because mtDNA phylogeographic patterns are incongruent with and sometimes orthogonal to nuclear phylogeographic patterns (Roca et al. 2005, 2007; Lei et al. 2008, 2009; Ishida et al. 2011b).

Unless Japan permits enough immigration to offset this, he said, demographic constraints are likely to trim gross domestic product by 1.3 percentage points a year.

Although stochastic factors influence variance in population abundance of less aggressive taxa, demographic constraints due to host resistance strongly regulate their populations near a low abundance equilibrium.

However, Feng (2009) points out that the patrilocal preference was rapidly fading under the demographic constraints of the one-child family structure.

The model presents vulnerability as a result of unsafe conditions within societies and the ways in which these conditions are produced through root causes such as economic and political circumstances on the one hand and dynamic pressures such as lack of skills or demographic constraints on the other hand (Wisner et al. 2004, p. 50, 52).

Ford felt his return would reduce American ageism (he refused to dye his hair for the role), because of the film's family appeal: "This is a movie which is geared not to [the young] segment of the demographic, an age-defined segment... We've got a great shot at breaking the movie demographic constraints".

Excessive cultural acquisition costs may therefore constitute a limiting factor on cultural complexity operating independently of demographic constraints.

Results suggest that demographic constraints confer a qualitative advantage in adult wing neurogenesis that likely enables exploration to be performed more efficiently at early stage of adulthood.

The characterizations in Table 1 specify the nature of the resource constraints, the demographic constraints, and the outcome of competition between variant and incumbent for the resources.

Surprisingly, adding demographic constraints to the genetic model reduced viability in only 66% of the scenarios investigated (the ratio TDG/TG ranged from 7.10-5 7.10-5 wito a median value of 0.47).

Using their concept of demographic constraints, Gomulkiewicz and Houle (2009) calculated critical values for the smallest eigenvalue of G in the worst-case scenario that selection acts exactly in the direction of the corresponding eigenvector.