My attention has been focused on the foundations of population ecology. My most widely known
work is a theory of predation (the ratio-dependent or Arditi-Ginzburg model) that is an alternative
to the classic prey-dependent Lotka-Volterra and MacArthur-Rosenzweig models. A recent book,
How Species Interact (Arditi & Ginzburg, 2012) summarizes our take on this proposed alteration of
the standard view. Second in recognition has been inertial growth, or a quantity-quality, two-
dimensional approach to population dynamics replacing the usual one-dimensional approach. This
explanation of population cycles, based upon the material effect model, is the main point of the book
Ecological Orbits (Ginzburg & Colyvan, 2004).
One of my interests in the last few years has been in metabolic ecology (Ginzburg & Damuth,
2008). I work on the idea that generation time is an essential fourth dimension of an organism in
addition to the dimensions of space that it occupies. The 4D view provides a simple, unifying
explanation for various observed slopes of metabolic allometries. Another recent interest of mine is
an evolutionary theory of non-adaptive selection, the disappearance of unstable configurations
(Borrelli et al, 2015, Ginzburg et al, 2010). I am currently writing a book (Non-Adaptive Selection,
with John Damuth) which will explore the implications of this idea for ecology and evolution.