Mapping species distributions

Species, Temperature, and Current Distribution Mapping in Polymer Electrolyte Membrane Fuel Cells... 

Despite the fact that MEP and MEF are related by the above equation, their spatial distributions may be quite different, and sometimes MEF maps may be more useful than MEP maps and vice versa. It is suggested that preferred binding sites of cations to molecules may be brought out reliably by MEP maps while, for the study of interactions of molecules with neutral dipolar species, MEF maps may be particularly useful [2, 23]. Due to the vectorial character of MEF, its magnitude and direction can both be employed to evaluate molecular similarity more rigorously than what is possible with MEP. If EA and Eg are the MEF of two molecules A and B at the corresponding point, one may use their scalar or vector product to evaluate similarity between the molecules [1],... 

It should be noted that the rotational spectroscopy of CO confined to a single vibrational level, usually the ground v = 0 level, provides only a limited amount of information about molecular structure. In the field of vibration-rotation spectroscopy, however, CO has been studied extensively and particular attention paid to the variation of the rotational and centrifugal distortion constants with vibrational quantum number. Vibrational transitions involving v up to 37 have been studied with high accuracy [78, 79, 80], and the measurements extended to other isotopic species [81] to test the conventional isotopic relationships. CO is, however, an extremely important and widespread molecule in the interstellar medium. CO distribution maps are now commonplace and with the advent of far-inffared telescopes, it is also an important... 

Proposed New Symbol, Name Current Official" Symbol, Name Prev. Alternate Name Only Other Alias Symbols Names Species Distribution (human locus map)... 

Mycologists specialize in the study of Psilocybes, despite the fact that Psilocybe semilanceata is the most common and conspicuous species among the Psilocybes. Also, mushroom lovers whose interests are not purely scientific (see Chapter 7.4) do not usually preserve their knowledge for posterity in the form of distribution maps. However, there is one map from 1986, which shows the distribution pattern of Psilocybe semilanceata across Germany (see Figure 20, p. 28). 

The search for a phenomenological alternative to RRKM inversion distribution mapping does not represent a novel idea. The first step in the RRKM modeling procedure for a chemically activated species involves the a priori characterization of its initial excitation energy distribution (70,89,90). For species produced from exoergic reactions this information is normally obtained from thermochemical data. A correspondingly simple direct method has not yet emerged for hot atom activation processes, because the associated dynamics are incompletely imderstood. 

This general pattern of relationships between areas is built up from the distributions of unrelated taxa, in this and previous analyses (Burbidge, 1960 Croizat, 1964 Tangney, 1990). It is independent of taxon relations as it is the sum of individual species distributions, compiled through mapping populations of different taxa at various taxonomic levels, each with different ecologies and dispersal capabihties. These biological characteristics are not correlated with the distribution patterns, and are therefore not an explanation for the pattern. 

---