In addition to culling rates, there are many potential factors that can determine efficiency of different management strategies, including demographic processes such as immigration rates, birth dynamics, and spatial ecology.
This basic understanding of the birth dynamics of the first and second stages of labour indicates that the main risk factors may have a direct or indirect effect on obstetric anal sphincter injuries, and that the effects of categories across different explanatory variables are not constant on the outcome.
This survey proves that these enzymes are not only present in non-model insects but that the multigene families that encode them are apparently undergoing complex birth-death dynamics.
Despite the obvious limitations in the EST based sampling of transcriptomes from specific insect tissues (versus complete genome sequencing), the shear diversity of beetle PCWDEs revealed here begins to suggest that the different families of genes encoding beetle PCWDEs are undergoing dramatic birth-death dynamics as beetles have radiated to exploit different niches and food sources.
We modelled the female population using a standard Lefkovitch model for population growth with birth-pulse dynamics and pre-breeding census [ 8].
During a cell cycle, the population of groups doubles deterministically (we ignore random birth-death dynamics in this model, in order to focus on partitioning dynamics), so that every group produces one exact copy of itself.
Recent research has found the Nsp-like gene family to have complex birth-death dynamics, with Nsp paralogs differing in their biochemical activity, genomic location, and copy number within and among species.
Preliminary work in this topic has shown that for a range of different, plausibly parameterized, "control strategies" for mtDNA populations (including different incarnations of relaxed replication and setpoint controls, manifest through different birth-death dynamics) the behaviour of heteroplasmy variance is very similar.
Moreover, to deal with various lengths of the regions, we extend the birth-and-death dynamics and present a multiple birth-and-death dynamics.
"The cost of the warning call is that the predator might eat you," says Frank J. Sulloway, a visiting scholar in the Institute of Personality and Social Research at the University of California, Berkeley, and the author of "Born to Rebel: Birth Order, Family Dynamics and Creative Lives".
"An elder sibling can play the role of a surrogate parent," said Sulloway, the author of "Born to Rebel: Birth Order, Family Dynamics, and Creative Lives".
