Sentence examples for main selective forces from inspiring English sources

Nectar sugar concentration, composition, and flower visitor assemblages were identified as main selective forces.

The amount of precipitation and sand burial depth appear to be the main selective forces responsible for the geographical distribution of these species.

In the sandy area, tolerance to drought and sand burial seem to be the main selective forces that play an important role in the sequential distribution pattern of these three species.

The main selective forces in the cliff-top environment inhabited by the precocious ecotype are likely to be exposure to strong winds, salt spray, and drought (King 1999; James and Bell 2001).

In addition to phylogeny and the mode of fertilization [ 4, 5], postcopulatory sexual selection, comprising variation in the level of sperm competition [ 6] and cryptic female choice [ 7], is thought to be one of the main selective forces responsible for variation in sperm morphology [ 8- 13].

Hermaphroditism (ie, "cosexuals" or "bisexuals") is considered the ancestral mating system, and selection for outcrossing has been proposed as the main selective force responsible for the evolution of dioecy (male/female) [ 4, 7].

The main selective force acting against falciparum at the moment is the efforts of global health agencies.

Sperm cooperation may be the main selective force favouring the evolution of an apical hook which is such a common feature of rodent sperm.

In our study, the main selective force that affects immunological memory traits was the pathogen environment.

If the main selective force for codon pair usage were related to translational effects at the ribosome and not to biases in mechanisms operating at DNA level, the codon pair bias would be stronger in ORFeomes than in genomes.

The selective advantage of multiple origins (if any) is not clear: the fact that the origins are unevenly distributed on the chromosome is, for instance, not in agreement with models in which shortening of the replication time would be the main selective force.