And that's not a bad thing; it encourages local variation and internal competition.
In this study we assessed how temperature, genetic variation and species competition may affect the sensitivity of the cyanobacterium Microcystis aeruginosa and the green-algae Scenedesmus obliquus to the antibiotic enrofloxacin.
Whether it can be applied to other taxonomic groups remains to be studied, but circumstantial evidence suggests that a negative relationship between intraspecific sperm length variation and sperm competition risk also exist in mammals [63], e.g. shrews [64], murine rodents [65] and hominids [66].
This type of self-regulation through variation in defoliation and competition within habitats is expected to facilitate temporal stability of insect populations [27] [28], and our data seem to support this notion.
Endophytic colonization usually represents an important ecological advantage to the microorganism, because the protected environment is less susceptible to abiotic stress (pH, redox, osmotic, and hydraulic variations) and microbial competition compared with the rhizosphere soil system.
Now, fifteen years old, her business has survived market variations, economic downturns, and competition from firms much larger.
In this second specification, identification of π2 and π3 relies on within-plant variation in competition and the accompanying changes in male and female workers' wages.
A series of 200 year-long simulations was performed to investigate the effects of variation in species characteristics and competition, landscape heterogeneity, and disturbance on patterns of species abundances.
Indeed, a number of factors can influence hepatic uptake of statins, including substrate transporter affinity, itself highly dependent on the chemical structure of individual statins, the degree of dose dependency between substrate and transporter, the presence of genetic variation in the transporter and competition among transporters.
