However, a significant number of US states have declined expansion.
In a study of changes over time in the variance in e C in a group of countries, the contribution of changes in life expectancy and of changes in the dispersion of ages at death (compression when dispersion is declining, expansion when dispersion is increasing) can be assessed accordingly.
Some populations may therefore not exhibit the evolutionary responses predicted based on their contemporary demography and selection pressures, due to time-lag effects of historical population declines, expansions or isolation events (Blumstein 2002).
Although that was its highest in ten months, the index was still on the wrong side of 50, the dividing line between decline and expansion.
Over the last two centuries the record shows a forest decline and expansion of Rumex acetosella, an exotic species indicative of European disturbance.
Several interactions generate new impacts: drought and land use changes, among others, alter water resources and lead to land degradation, vegetation regeneration decline, and expansion of forest diseases.
Unlike around Lake Baikal, warmer summers between 6 and 3.5 ka resulted in the decline, not expansion, of forest vegetation around Lake Hovsgol, apparently as a result of higher soil temperatures and lower moisture availability.
In contrast to the surge in late stage VC deals, we can identify a marked decline in expansion investments.
Priors on the current and the ancestral population size were identical so that population decline or expansion is equally likely.
The present study indicates that over evolutionary time the GH18 family evolved by decline and expansion according to selective forces associated with speciation.
Microsatellite markers were used to detect signals of demographic decline or expansion using the Bayesian inferential method of Storz and Beaumont [ 35] implemented in MSVAR1.3.
