All these factors change species interactions by altering distribution
and bringing new combinations of individuals together, which increase
the rates of hybridization (Seehausen et al., 2008).
Many examples document the accidental introduction or intentiona
translocation of non-native fish species and the rapid expansion o
invasive species across novel habitats. In such cases, the status of nativ
fish species is endangered because of direct space and/or food competi
tion, and also because of highly probable introgression into the genom
of native species resulting from hybridization (e.g. Costedoat et al
2007; Hänfling et al., 2005). In some cases, cyprinid hybrids may eve
occur in unprecedented numbers often exceeding those of bot
parental species, as was shown for two non-native species in Ireland
i.e. common bream (Abramis brama) and roach (Rutilus rutilus
(Toscano et al., 2010); for goldfish (Carassius auratus) and crucia
carp (Carassius carassius) in the UK, where non-native goldfish pose
considerable ecological and genetic threat through direct competitio
All these factors change species interactions by altering distributionand bringing new combinations of individuals together, which increasethe rates of hybridization (Seehausen et al., 2008).Many examples document the accidental introduction or intentionatranslocation of non-native fish species and the rapid expansion oinvasive species across novel habitats. In such cases, the status of nativfish species is endangered because of direct space and/or food competition, and also because of highly probable introgression into the genomof native species resulting from hybridization (e.g. Costedoat et al2007; Hänfling et al., 2005). In some cases, cyprinid hybrids may eveoccur in unprecedented numbers often exceeding those of botparental species, as was shown for two non-native species in Irelandi.e. common bream (Abramis brama) and roach (Rutilus rutilus(Toscano et al., 2010); for goldfish (Carassius auratus) and cruciacarp (Carassius carassius) in the UK, where non-native goldfish poseconsiderable ecological and genetic threat through direct competitio
การแปล กรุณารอสักครู่..
