semispecies


Also found in: Medical.

semispecies

[¦sem·i′spē·shēz]
(systematics)
The species that compose a superspecies.
Populations that have acquired some attributes of species rank.
Organisms that are borderline between species and subspecies.
References in periodicals archive ?
equinoxialis and as before, the Amazonian semispecies does not cluster with the other D.
paulistorum, although it was originally included as another semispecies (Guianan) of D.
Although the per data give strong support for the sister status of the Andean-Brazilian (AB) and Orinocan (O) semispecies and for the close relationship of D.
While this information is crucial, to examine microevolutionary processes below the species level (e.g., subspecies and semispecies), clearly finer-scale phylogenetic resolution is vital.
poecilogyrus) is so distinct (see below) that it easily fits the concept of "semispecies" of Mayr (1963).
Heliconius himera is a primarily allopatric semispecies (Descimon and de Maeght 1983) that occasionally hybridizes with H.
Further observations on natural hybridization between two semispecies Phytomyza abdominalis.
Partially successful attempt to enhance reproductive isolation between semispecies of Drosophila paulistorum.