ad nauseum. You can find some discussion and references here:

https://books.google.com/books?id=-TCnnojj6hcC&lpg=PP1&dq=Adaptive%20Diversification&pg=PP1#v=onepage&q=bifurcation&f=false

I don't have access to it, but is this the sort of stuff you're looking for?

Volkenstein, M.V. and Livshits, M.A., 1989. Speciation and bifurcations. BioSystems, 23(1), pp.1-5.

Abstract

The interrelations of physics and biology are discussed. It is shown that Darwin can be considered as one of the founders of the important field of contemporary physics called physics of dissipative structures or synergetics. The theories of gradual and punctual evolution are presented. The contradiction between these theories can be solved on the basis of molecular theory of evolution and on the basis of the phenomenological physical treatment. The general physical properties of living systems, considered as open systems being far from equilibrium, are listed and simple non-linear mathematical models describing gradual and punctual speciation are suggested. The usual pictures which present these two kinds of speciation can possess physico-mathematical sense. Punctuated speciation means bifurcation, a kind of non-equilibrium phase transition.

http://www.sciencedirect.com/science/article/pii/0303264789900026

Volkenstein, M.V., 2012. Physical approaches to biological evolution. Springer Science & Business Media. Vancouver

See section 9.4 Speciation and Bifurcations

http://www.downloads.imune.net/journals/1990%20Updated%20Quantum%20Electro%20Dynamics%20and%20Bioluminiscence/pdf/Physical%20Approaches%20to%20Biological%20Evolution.pdf

And yet another publication: http://emis.ams.org/journals/UIAM/PDF/41-67-88.pdf . So there are consideratios of this kind.

Best, Igor