This debate has centered on niche definitions, and in particular whether the niche is a property of the species or its environment. We may thus view the RMT as a multidimensional expansion of the nutritional axis of the Hutchinsonian niche space. The Niche and the Biotope. The existence of true multidimensional convergence, as seen in anoles, sheds light on old debate of whether the concept of an “empty niche” is meaningful. The dietary generalist–specialist distinction plays a pivotal role in theoretical and applied ecology, conservation, invasion biology, and evolution and yet the concept remains poorly characterised. The multidimensional stoichiometric niche approach developed here could be used to re-analyze these and other data from experimental manipulations and evaluate the extent at which a particular or multiple stressors impact the stoichiometric niche (i.e., niche size, shape and position) of the food web in treated and reference systems. The niche, according to Hutchinson, is a Euclidean hyperspace whose dimensions define the environment within which an organism can survive for long periods of time. The Hutchinsonian niche is an , where the dimensions are environmental dimensional hyper conditions and resources, that define the requirements of an individual or a species to practice "its" way of life, more particularly, for its population to persist (Schoener, 2009). The niche of the organism is then defined as the region in this n-dimensional space over which the population can maintain or increase its size (i.e., maintain a non-negative growth rate independent of immigration ). (a) Consider a two-dimensional dataset describing a h ypothetical ‘Swiss cheese’ h ypervolume. Hutchinson's conception of the niche as a multidimensional volume, defined in a hyperspace with permissive conditions and requisite resources as its axes, was not simply an abstract formalization of the ideas of Grinnell, Elton, Gause, and others. We consider the application of our multidimensional framework to invasion biology. (b) A two-dimensional range box fails to capture the rotation and holes in the h ypervolume. multidimensional niche across ecological scales is possible from. In this new definition, the niche was represented as an n-dimensional hypervolume in multidimensional biospace, occupied by the species being investigated, including the complete range of environmental factors (dimensions) required for successful reproduction of the population (Green, 1971). a set of elemental measurements of the individuals composing. THE MULTI-DIMENSIONAL NICHE Hutchinson (1957, 1965) has conceptual- ized the ecological niche so as to render it more useful for focusing upon the principal determinants of man-environmental rela- tions. Viewing the RMT as such it is then possible to …