In recent decades, concerns have arisen about the effects of hatchery fish and some artificial propagation practices on the evolution and viability of native populations (NRC 1996, Waples 1999; Hutchings and Fraser 2008).
In the fourth of them, The Pastoral Continuum: The Marginalization of Tradition in East Africa (1998), he placed a number of his earlier concerns within a more comparative context, considering the evolution and viability of subsistence pastoral societies in a rapidly changing world and the larger dynamics of ageing.
Refers to the nematode microbe pair as an indivisible entity in terms of viability and evolution.
In parallel, we also followed the evolution of embryo to adult viability, which revealed similar starting levels of inbreeding depression in both breeding systems, but also outbreeding depression.
A theory of gene dispersal by wind pollination can make an important contribution to understanding the viability and evolution of important plant groups in the Earth's changing landscape and it can be applied to evaluate concerns about the spread of engineered genes from genetically modified (GM) crops into conventional varieties via windborne pollen.
Here we introduce a spatial model of evolution which assumes viability selection, mutations and random mating.
The same tendencies were observed for changes in the evolution of hatchability rates, showing that embryo viability was not impaired.
An underinvestment in this component will seriously threaten the viability of any evolution of initiatives to reach and retain more children.
Tissue viability was expressed as percentage of viability relative to that of samples at T0.
We are fast approaching the absolute limit of viability.
