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Natural constituents of Ilex species
Journal of Ethnopharmacology, 1987A literature survey on chemical constituents of Ilex species is given. General and medicinal uses of the plant are also described.
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Is It Natural to Drive Species to Extinction?
Ethics & the Environment, 2005Whether or not extinction caused by human activities is natural depends on which sense of the term 'natural' is under consideration. Given one sense of that term which has some grip on the popular imagination, it is. This suggests that at a minimum environmentalists should be very careful about invoking 'the natural' and related concepts such as ...
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A natural species concept for prokaryotes
Current Opinion in Microbiology, 1998Direct molecular analyses of natural microbial populations reveal patterns that should compel microbiologists to adopt a more natural species concept that has been known to biologists for decades. The species debate can be exploited to address a larger issue - microbiologists need, in general, to take a more natural view of the organisms they study.
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On the Nature of the Wolf Species
2020Chapter 23 focuses on wolves (gurg). This class of evil animals includes not only wolves proper, but also tigers, lions, owls, shark, and other species; some of these, such as the garzag, cannot be identified. The chapter describes how wolves were created directly by Ahriman.
Domenico Agostini, Samuel Thrope
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The natural Art. Artists of diferent species
Academia Letters, 2022Edgar Morin (1975) stated that “Society is one of the most widely spread fundamental forms,developed in avery unequal but very varied way. “It is concluded that neither communication, nor the symbol, nor the rite, are human exclusives. And that they have very remote roots in the evolution of species.” Since Karl von Frisch discovered in the 1920s that ...
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The Nature of Biological Species
Philosophy of Science, 1984Although it is possible to regard a species as a set with a special internal structure, it is preferable to regard a species as an individual precisely to emphasize this internal structure. It is necessary to recognize, moreover, that two organisms that are part of a single entity with respect to one process need not be part of a single entity with ...
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Natural product biosynthesis in Medicago species
Natural Product Reports, 2014The genus Medicago, a member of the legume (Fabaceae) family, comprises 87 species of flowering plants, including the forage crop M. sativa (alfalfa) and the model legume M. truncatula (barrel medic). Medicago species synthesize a variety of bioactive natural products that are used to engage into symbiotic interactions but also serve to deter pathogens
Azra, Gholami +4 more
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On the Nature of Species in the U.S.S.R.
Systematic Zoology, 1954LYSENKO'S new book * begins with a brief outline of the history of the species concept as developed by Linnaeus, Lamarck, Darwin, and Timiriazev. The two last named authors are mildly reproved for having entertained a theory of "one-sided, flat evolutionism," which assumes that new species arise gradually from old ones, which consorts with the ...
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Noise Promotes Species Diversity in Nature
Physical Review Letters, 2005Species diversity in nature is accomplished by coexistence. In a spatial environment, inferior but rapidly moving species can coexist with superior but relatively stationary species. Recent work showed that chaotic dynamics can provide the spatiotemporal variation in the fitness required for coexistence, via the dynamical mechanism of synchronization ...
Ying-Cheng, Lai, Yi-Rong, Liu
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Brazil naturalizes non-native species
Science, 2018Brazil's national policies are putting the country's megadiversity at risk ([ 1 ][1]–[ 3 ][2]). After passing a 2016 law that will put constraints on biodiversity research ([ 3 ][2]), the Ministry of Agriculture, Livestock, and Supply has taken another controversial action: A new ...
Marcelo Fulgêncio Guedes, Brito +7 more
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