Historical demography and climate driven distributional changes in a widespread Neotropical freshwater species with high economic importance
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985904%3A_____%2F20%3A00533441" target="_blank" >RIV/67985904:_____/20:00533441 - isvavai.cz</a>
Result on the web
<a href="https://www.ecography.org/appendix/ecog-04874" target="_blank" >https://www.ecography.org/appendix/ecog-04874</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/ecog.04874" target="_blank" >10.1111/ecog.04874</a>
Alternative languages
Result language
angličtina
Original language name
Historical demography and climate driven distributional changes in a widespread Neotropical freshwater species with high economic importance
Original language description
The Neotropical region exhibits the greatest worldwide diversity and the diversification history of several clades is related to the puzzling geomorphologic and climatic history of this region. The freshwater Amazon ecoregion contains the main hydrographic basins of the Neotropical region that are highly dendritic and ecologically diverse. It contains a rich and endemic fish fauna, including one of its most iconic and economically important representatives, the bony-tongue Arapaima gigas (Teleostei, Osteoglossiformes). Here, we evaluated the projected distribution of the genus in different historical periods (Present, Last Glacial Maximum, Last Interglacial Maximum and Near Future) and interpreted these results in light of the genomic diversity and modeled historical demography. For that, we combined species distribution models, population genetic analysis using SNPs and deep learning model selection. We analyzed a representative sample of the genus from the two basins where it naturally occurs, four localities in the Amazon (Am) and three in the Tocantins-Araguaia (To-Ar) basin, as well as individuals from three fish farms. We inferred a potentially smaller distribution in the glacial period, with a possible refuge in central Am. Our genetic data agrees with this result, suggesting a higher level of genetic diversity in the Am basin, compared to that observed in To-Ar. Our deep learning model comparison indicated that the To-Ar basin was colonized by the population from the Am basin. Considering a global warming scenario in the near future, A. gigas could reach an even larger range, especially if anthropogenic related dispersal occurs, potentially invading new areas and impacting their communities.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10618 - Ecology
Result continuities
Project
<a href="/en/project/EF15_003%2F0000460" target="_blank" >EF15_003/0000460: EXCELLENCE in Molecular Aspects of the early development of vertebrates</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Ecography
ISSN
0906-7590
e-ISSN
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Volume of the periodical
43
Issue of the periodical within the volume
9
Country of publishing house
DK - DENMARK
Number of pages
14
Pages from-to
1291-1304
UT code for WoS article
000538929000001
EID of the result in the Scopus database
2-s2.0-85086106817