The phrase "a number of introduced" is not correct as it stands and lacks clarity in written English.
It can be used when referring to a quantity of items or concepts that have been introduced, but it needs additional context or a noun to be complete.
Example: "A number of introduced species have begun to disrupt the local ecosystem."
Alternatives: "several introduced" or "many introduced".
Other than bats, there are no native land mammals on Madeira, although there are a number of introduced species, two of which will take birds or chicks.
Other than bats, there are no native land mammals, although there are a number of introduced species, two of which will take birds or chicks.
A number of introduced species are now naturalized (e.g. Stylosanthes spp., Cenchrus ciliaris).
However, some native and a number of introduced minisatellite sequences have been shown to alter during meiosis.
Plant listings in the 1843 Camden Park Nursery catalogue include a number of introduced plants that have since become environmental weeds, including African olive, which was established at this time.
In the low lying atoll islands there is ready recognition of the importance of coastal vegetation in protecting gardens and other agricultural areas from salt spray and a number of introduced species have been trialled in this regard as well as maintaining indigenous species.
Therefore, with increased availability of introduced foods in markets, poor people substitute a diversity of traditional foods with a limited number of introduced foods (Bellon 2010).
Each read class contained reads with a fixed number of introduced random errors relative to the consensus genome sequence.
Among them are a number of recently introduced -- and highly profitable -- models.
Thus, a number of researchers introduced non-parametric background modelling techniques [12 17].
Interview 9 (conducted by Manuel Hernández) returns to and develops a number of themes introduced in Interviews 1, 5 and 6.
