Recherche Images Maps Play YouTube Actualités Gmail Drive Plus »
Connexion
Livres Livres 1 - 10 sur 28 pour Species are groups of interbreeding natural populations that are reproductively isolated....
" Species are groups of interbreeding natural populations that are reproductively isolated from other such groups. "
Horticultural Reviews - Page 13
de Jules Janick - 2002 - 496 pages
Aperçu limité - À propos de ce livre

Evolution and the Diversity of Life: Selected Essays

Ernst Mayr - 1997 - 721 pages
...Indeed, it breaks with all philosophical traditions by defining species purely biologically, as follows: Species are groups of interbreeding natural populations...are reproductively isolated from other such groups. A species, owing to the properties mentioned in this definition, has three separate functions. First,...
Aperçu limité - À propos de ce livre

Ecological Genetics

David J. Merrell - 500 pages
...isolated from other such groups." In 1970 he gave a slightly, but significantly, different version. "Species are groups of interbreeding natural populations...are reproductively isolated from other such groups." Dobzhansky, one of the most influential in the development of the biological species concept, wrote...
Aperçu limité - À propos de ce livre

Evolution From Molecules to Men

D. S. Bendall - 1986 - 607 pages
...through the net of differential success at the species level' (Gould. 1982a, pp. 84-5: italics added). Species are groups of interbreeding natural populations that are reproductively isolated from any other such groups (Mayr, 1963: Dobzhansky et al., 1977). Speciation involves, by definition, the...
Aperçu limité - À propos de ce livre

Taxonomy of Angiosperms

V.N. Naik - 1984 - 304 pages
...species as "the reproductively isolated system of breeding populations". Mayr (1969a) defined it as "groups of interbreeding natural populations that...are reproductively isolated from other such groups". Dobzhansky (1935) was apparently the first geneticist to define species in terms of interbreeding and...
Aperçu limité - À propos de ce livre

Guide to the Mammals of Pennsylvania

Joseph F. Merritt, Ruth Anne Matinko - 1987 - 408 pages
...climb by means of sharp, curved claws. Tree squirrels, for example, are scansorial. Species: A group of interbreeding natural populations that are reproductively isolated from other such groups. Stenotopic: Pertaining to a species characterized by a restricted geographic range because of its limited...
Aperçu limité - À propos de ce livre

Toward a New Philosophy of Biology: Observations of an Evolutionist

Ernst Mayr - 1988 - 564 pages
...populations coexist that do not interbreed with each other. This is articulated in the definition, "Species are groups of interbreeding natural populations...are reproductively isolated from other such groups." Certain aspects and implications of this def1nition will now be discussed. For instance, since hybridization...
Aperçu limité - À propos de ce livre

Science as a Process: An Evolutionary Account of the Social and Conceptual ...

David L. Hull - 1990 - 600 pages
..."potential interbreeding" was thus redundant. According to Mayr's (1969: 26) reformulated definition: Species are groups of interbreeding natural populations...are reproductively isolated from other such groups. Mayr noted that, by definition, asexual organisms do not form populations; as a result, the biological...
Aperçu limité - À propos de ce livre

Environmental Ethics

Holmes Rolston - 2012 - 408 pages
...separately from others and with its own unitary evolutionary role and tendencies.22 Ernst Mayr holds: Species are groups of interbreeding natural populations...are reproductively isolated from other such groups. He can even emphasize, though many biologists today would deny this, that "species are the real units...
Aperçu limité - À propos de ce livre

The Plant Diversity of Malesia

P. Baas, K. Kalkman, R. Geesink - 1990 - 420 pages
...is an unmistakable denial of nominalistic and typological species concepts. Mayr (1969: 26) defined: "Species are groups of interbreeding natural populations...are reproductively isolated from other such groups" or, in its latest version (Mayr 1982: 273): "A species is a reproducing community of populations (reproductively...
Aperçu limité - À propos de ce livre

Lucy: The Beginnings of Humankind

Donald Johanson, Maitland Edey, Maitland Armstrong Edey - 1990 - 416 pages
...eventually be identified. As to what makes a species, Ernst Mayr puts it this way: a species is "a group of interbreeding natural populations that are reproductively isolated from other such groups." That is the classic description of a biological species, or biospecies. Le Gros Clark goes on to say...
Aperçu limité - À propos de ce livre




  1. Ma bibliothèque
  2. Aide
  3. Recherche Avancée de Livres