By Theodore J. Crovello (auth.), P. L. Nimis, T. J. Crovello (eds.)

Many features of phytogeography have won loped numerical ideas which enable the com­ tremendously from the new improvement of analytical bination of quantitative floristic and vegetational and numerical equipment. the recent equipment have analyses with mapping and causal or evolu­ unfolded new avenues of analysis, resulting in a tionary deductions. The papers chosen for the higher realizing of the distribution and e-book convey techniques for larger and reduce plant evolutionary styles of species and groups. types. a number of papers facing suitable in­ through the 1987 Botanical Congress in Berlin, formation on crops for the respective parts Drs Nimis and Haeupler geared up a symposium seem for the 1st time. the combo of within which examples of present-day phytogeogra­ new methods effectively utilized to new phic paintings have been mentioned. After the symposium difficulties could be very stimulating to younger it used to be agreed complaints quantity may still scientists as many papers reveal tips to be edited by way of Drs Nimis and Crovello. From the make effective use of the recent advancements in lectures offered, these dealing essentially with details technology for species-oriented phyto­ numerical equipment have been chosen for the e-book. geography. this can be the second one quantity of the T: VS sequence that whereas the booklet doesn't intend to function a offers with new features and techniques of phyto­ textbook, it may be considered as a consultant to the geography.

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W. 1962. The canonical distribution of commonness and rarity. Ecology, 43, 185-215, 410-431. Rebristaya, O. V. 1987. Use of the elementary flora method in the West Siberian Arctic (Yamal Peninsula). In: Yurtsev, B. A. (ed), Theoreticheskie i Methodicheskie Problemy Sravnitelnoy Floristiki, pp. 67-90. "Nauka", Leningrad (in Russian). Schmidt, V. M. 1980. Statistical Methods in Comparative Floristics. Leningrad University Press, Leningrad (in Russian). Schmidt, V. M. 1987. , Tolmachev in the development of comparative floristics.

Permafrost discontinuous but widespread. Loess and volcanic ash deposits are frequent. Alaska Highway intercept: 81 km (9%). The Alaska Highway avoids mountain ranges: most of the transect lies between 500 and 900 m. The highest points, above 1000 m, occur in the Pelly Mountains and Ruby Range Ecoregions; consequently, the upper montane belt is poorly represented. Geologically, the survey area has been classified as a part of the Cordilleran Orogenic Province (Fremlin 1973), which has a great physiographic diversity (Bostock 1965).

1972. Computerization of the Edward Lee Greene Herbarium at Notre Dame. Brittonia, 24,131-141. Crovello, T. 1. 1981. Quantitative biogeography: an overview. Taxon, 30, 563-575. l. and MacDonald, R. D. 1970. Index of EDPIR projects in systematics. , 19,63-79. Diamond, 1. M. 1976. Island biogeography and conservation: strategy and limitations. Science, 193, 1027-1029. Dony, 1. G. 1977. Species-area relationships in an area. Ecology, 65, 485-484. Evans, F. , Clark, P. 1. and Brandt, R. H. 1955. Estimation of the number of species present in a given area.

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