These findings suggest that a uniform isometric relationship exists in grain crop species and that artificial selection
in crop species has not changed this relationship.
Tb]) results from reduction of diversity by strong artificial selection
in the Thoroughbreds.
Paradoxically, environmental selection may, in many instances, have been stronger than artificial selection
for small horns may thus lead to poor reproductive performance at population level.
He notes, first, Wallace's lack of interest in artificial selection
and his failure to appreciate the analogy between artificial and natural selection, and second, his silence on how natural selection acts on differences between individual organisms to bring about changed populations.
Cabbage was developed by ongoing artificial selection
for suppression of the internode length.
Earth Matters incorporated a number of other noteworthy works--for example, Brian Czibesz's Diagnostic: Myopia, Susan Beiner's Artificial Selection
, Aislin Caron's Harvest and Gudron Klix's On the Table--that reflected on the ominous implications of human manipulation of nature in pursuit, ironically, of alimentation and health.
As English adapts its way through a sea of localized users, this English would then be subjected to further adaptation and customization - all part of the artificial selection
Specifically, there was analyzed population structure and changes in a range of body development parameters with the aim of providing information to support artificial selection
, conservation and possible population expansion of Gyr breed in northeast Brazil.
This is an artificial selection
of territory that excludes some groups and relationships from her analysis, as she does acknowledge, but the author nonetheless captures intellectual change among peoples seldom studied for this purpose.
From a genetic point of view, there exists no important distinction between natural and artificial selection
Several basic protocols for the healthy maintenance of these populations have been developed, including re-establishing the lineage through relaxed-rearing, artificial selection
of more resistant lineages, hybridization of compatible lineages, and supplying the colony with wild individuals (Leppla 1989, Zucoloto 2000).
Intervening chapters treat the genetic and ecological contexts of asexual and sexual natural and artificial selection
the power of natural and artificial selection
to produce changes in diverse populations of organisms, and various types of indirect evidence, e.
It is instructive to draw an analogy between the process of artificial selection
in professional baseball as just described and the economic literature on efforts to establish minimum quality standards in markets for goods and services of uncertain quality.