Efficacy of undefined and defined bacterial treatment in competitive exclusion
of salmonella from chicks.
Community equilibria and stability and an extension of the competitive exclusion
In this case, competitive exclusion
between co-occurring species may limit the coexistence of closely related plants within a cerrado site (Webb et al.
This concept known as Competitive Exclusion
(EC) based on the fact that this mature intestinal flora excludes certain enteric pathogens, such as Salmonella, from settling down in digestive tract.
In the United States, adoption of this strategy, known as competitive exclusion
, has been slow as the cultures must be shown to effectively reduce pathogen levels and not contain specific antibiotic resistance genes, and its use requires FDA approval which can take many years to obtain.
In this way, predators can contribute to species evenness by keeping the dominant species from overwhelming others via competitive exclusions
Similarly, Main and Coblentz (1996) suggested that competitive exclusion
of males by females occurred for Rocky Mountain mule deer (Odocoileus hemionus hemionus) feeding mostly on forbs.
As Kneen makes clear, this is entirely different from the more traditional agricultural practice of competitive exclusion
For salmonella in eggs (the major infection vector), control measures included vaccination, competitive exclusion
and in-shell egg pasteurization.
In keeping with its design as a textbook, this book begins with a review of concepts such as ecosystem, niche, competitive exclusion
, species distribution along environmental gradients, and the mosaic nature of landscapes.
Last spring, the Food and Drug Administration okayed the first competitive exclusion