Set of assessment records of IUCN Red Data List containing reference to the 8.2.2 threat from the IUCN Threats Classification Scheme (Version 3.2)
| Main Authors: | Draper, David, Laguna, Emilio, Marques, Isabel |
|---|---|
| Format: | info dataset Journal |
| Bahasa: | eng |
| Terbitan: |
, 2021
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/4611640 |
Daftar Isi:
- List of species assessments obtained from the IUCN Red Data List database (Version 2020-2. http://www.iucnredlist.org. Accessed at 8 Oct 2020) containing reference to the 8.2.2 threat from the IUCN Threats Classification Scheme (Version 3.2). Data contains five fields: 'assessmentId': IUCN internal asessment ID 'redlist_code': Code of the IUCN Red List category 'scientificName': Scientific name of the assessed taxon extracted from the IUCN taxonomy.csv table 'kingdomName': Kingdom name of the assessed taxon extracted from the IUCN taxonomy.csv table 'phylumName': Phylum name of the assessed taxon extracted from the IUCN taxonomy.csv table Note that: EX category includes EW, NT include LR/nt and LC includes LR/lc and LR/cd. Five Fungi assessments also include this threat but are not represented in this table Hybridization is one of the most controversial - and usually neglected - issues in conservation due to its multiple evolutionary consequences that might include the origin and transfer of adaptations, the blur of previously distinctive lineages or the formation of maladaptive hybrids. While different outcomes might occur over an evolutionary time scale, successful hybrid individuals can lead to the creation of new species, which were historically seen as possible threats to the survival of parental species. However, considering all assessments available in IUCN Red Data Lists, we found that hybridization is a minimal threat for species extinctions, 12 extinct species had related influence with hybridization among 120.369 assessments. A strong problem lies on the misinterpretation of concepts involving hybridization such as the definition of hybrid species, which is sometimes uncritically put together with the occurrence of hybrids that do not constitute an independent lineage. Should we conserve hybrid despite the possibility of gene flow with parental species? Should we conserve incipient hybrid species that might have led to the disappearance of parental ones? The resolution of this debate goes to the heart of what we mean to conserve and the time scale of conservation. But natural hybridization occurs frequently, and it becomes clear that environmental policies are necessary for the management of hybrids, considering both positive and negative consequences.
- Funding Fundação para a Ciência e a Tecnologia, Award: UID/BIA/00329/2019 Fundação para a Ciência e a Tecnologia, Award: SFRH/BPD/100384/2014