Evolution of Botanical Geography
نویسندگان
چکیده
منابع مشابه
Editorial : Constructing an evolutionary economic geography 1 . Taking evolution seriously in economic geography
Editorial: Constructing an evolutionary economic geography 1. Taking evolution seriously in economic geography Change is one of capitalism's constants. As a mode of economic organization, capitalism never stands still. Its central imperative—the search for profit and wealth creation— drives a perpetual process of economic flux. Every day new firms, new products, new technologies, new industries...
متن کاملThe Geography of Ecological Niche Evolution in Mammals.
Convergent adaptive evolution of species' ecological niches-i.e., the appearance of similar niches in independent lineages-is the result of natural selection acting on niche-related species traits ("traits" hereafter) and contrasts with neutral evolution [1-4]. Although trait convergences are recognized as being of importance at the species scale, we still know little about the impact of specie...
متن کاملformation and evolution of regional organizations: the case study of the economic cooperation organization (eco)
abstract because of the many geopolitical, geo economical and geo strategically potentials and communicational capabilities of eco region, members can expand the convergence and the integration in base of this organization that have important impact on members development and expanding peace in international and regional level. based on quality analyzing of library findings and experts interv...
15 صفحه اولBotanical ratchets.
Ratcheting surfaces are a common motif in nature and appear in plant awns and grasses. They are known to proffer selective advantages for seed dispersion and burial. In two simple model experiments, we show that these anisotropically toothed surfaces naturally serve as motion rectifiers and generically move in a unidirectional manner, when subjected to temporally and spatially symmetric excitat...
متن کاملHistory of botanical science
penetrate. I looked for the usual introduction on "How to use this book", and did not find it, until page 39. Equally, it takes a little searching to find out why a large section of the listed material is not actually reproduced in the book, but is on the microfiche. Finally, the coverage of countries is heavily towards Britain and North America, although this is only explained in one of the es...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Geographical Journal
سال: 1903
ISSN: 0016-7398
DOI: 10.2307/1775203