Naslov
Integrativni pristup u konzervaciji potočnog raka
(Integrative approach to conservation of the stone crayfish)

Autori
Lovrenčić, Leona ; Temunović, Martina ; Podnar, Martina ; Boštjančić, Ljudevit Luka ; Bonassin, Lena ; Maguire, Ivana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts / - , 2022, 87-89

Skup
14. Hrvatski biološki kongres

Mjesto i datum
Pula, Hrvatska, 12.10.2022. - 16.10.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Austropotamobius torrentium, Evolutionary Significant Units, Species distribution modelling, climate change

Sažetak
The stone crayfish is a native European freshwater species endangered due to anthropogenic pressure on its habitats, invasive alien crayfish species and climate change. Our aims were to assess its genetic diversity in Croatia using molecular phylogenetics and population genetics, and to reveal the impact of climate changes on its diversity using species distribution modelling (SDM). Phylogenetic reconstruction revealed the existence of high genetic diversity, maintained in seven geographically and genetically isolated mtDNA lineages which present distinct Evolutionary Significant Units (ESUs). Population genetic analyses based on microsatellites revealed moderate within-population genetic diversity and isolated populations with limited gene flow. Besides strong genetic structuring concordant with established ESUs, we discovered high level of inbreeding within the majority of populations. The SDM results predicted substantial decrease of suitable habitats for stone crayfish by 2070 ; 80% of its currently suitable habitats are predicted to be lost under high-warming climate change scenario. Moreover, 44% of investigated populations with high and/or unique genetic diversity are located in areas predicted to become unsuitable, thus having a high probability of extinction in the future. Considering ongoing climate change predictions, prompt actions including assisted migration and repopulation should take place in order to preserve the existing diversity of this endangered species.

Izvorni jezik
Engleski

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