2020
DOI: 10.1038/s42003-020-1116-9
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Harmonizing hybridization dissonance in conservation

Abstract: A dramatic increase in the hybridization between historically allopatric species has been induced by human activities. However, the notion of hybridization seems to lack consistency in two respects. On the one hand, it is inconsistent with the biological species concept, which does not allow for interbreeding between species, and on the other hand, it is considered either as an evolutionary process leading to the emergence of new biodiversity or as a cause of biodiversity loss, with conservation implications. … Show more

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Cited by 56 publications
(43 citation statements)
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References 109 publications
(159 reference statements)
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“…Depending on species and environmental conditions, hybridization may have either negative or positive impacts, and sometimes there may be very limited consequences. In some cases, hybridization can drive species toward extinction, while in others it provides an opportunity to create new species [ 124 ]. Genetic swamping, outbreeding depression, introgression of variants originating from domesticated lineages, and morphological anomalies are typically associated with negative consequences, such as loss of adaptive variation [ 26 , 125 , 126 , 127 , 128 , 129 , 130 ], high mortality rates [ 131 ], and even extinction [ 30 ].…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Depending on species and environmental conditions, hybridization may have either negative or positive impacts, and sometimes there may be very limited consequences. In some cases, hybridization can drive species toward extinction, while in others it provides an opportunity to create new species [ 124 ]. Genetic swamping, outbreeding depression, introgression of variants originating from domesticated lineages, and morphological anomalies are typically associated with negative consequences, such as loss of adaptive variation [ 26 , 125 , 126 , 127 , 128 , 129 , 130 ], high mortality rates [ 131 ], and even extinction [ 30 ].…”
Section: Discussionmentioning
confidence: 99%
“…This could include cases where hybridization was rare or did not occur, as well as cases where limitations in sampling and the use of low number of genetic makers could result in poor detection of hybridization [ 216 , 217 , 218 , 219 , 220 , 221 , 222 , 223 , 224 , 225 ]. The number of genetic markers is important to detect signatures of hybridization, especially if cross-breeding and/or back-crossing events are rare [ 56 , 124 ]. Moreover, small data sets may show only a preliminary assessment of hybridization [ 226 ], and comprehensive sampling is necessary to obtain reliable results.…”
Section: Discussionmentioning
confidence: 99%
“…Hybridisation and introgression may increase the adaptive potential of species by the fixation of beneficial alleles or removal of detrimental alleles and can be used as a tool for species recovery (Chan, Hoffmann, & van Oppen, 2019;Quilodran, Montoya-Burgos, & Currat, 2020). Whole genome sequencing has allowed quantitative assessment of introgression in British polecats.…”
Section: Discussionmentioning
confidence: 99%
“…Yet, what would then happen with the Florida panther that has been bred intentionally with an introduced species for genetic rescue? This poses a dilemma especially considering that hybridization resulted in increased population levels, colonization of new areas and improvement of its demographical trend (Pimm et al, 2006).…”
Section: Where Do We Stand In the Future Of Hybrids In Conservation Or Assessment Lists?mentioning
confidence: 99%