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Evolutionary Responses of Caudates to Climatic Changes in Pliocene Spain: Insights from the Camp dels Ninots Lagerstätte

Project description

Identifying the evolution of Spanish caudates

Caudates, one of the three living lineages of amphibians, are a diverse group that depend on water for reproduction and development. They serve as important palaeoecological indicators. Supported by the Marie Skłodowska-Curie Actions programme, the PlioCaudates project will study caudates from the Camp del Ninots Lagerstätte using micro-computed tomography (μCT) scans to create a taxonomic framework and analyse shape differences through three-dimensional geometric morphometrics. The study will investigate sexual dimorphism in Spanish caudates by comparing morphological characteristics between sexes. It will also identify Pliocene-aged caudates using Bayesian phylogenetics to establish the timeline of when these fossils originated relative to their living relatives, thereby enhancing our understanding of caudate evolution in the Neogene.

Objective

Caudates, one of three extant lineages of amphibians, are a rich and diverse clade that rely heavily on water for reproduction and development and are known to be important palaeoecological indicators. Records indicate that less than 10% of Neogene caudates are known to be preserved as articulated skeletons, and in Lagerstätte type of preservation is even rarer still. This study will investigate caudates from the Camp del Ninots Lagerstätte using micro-computed tomography scans (μCT) to build a taxonomic framework and use three-dimensional geometric morphometrics to analyse shape differences for phylogenetic/taxonomic value. This study will also compare morphological shape differences using μCT of caudates from different sexes and determine whether there are sexual dimorphic morphological characters within Spanish caudates. Morphological characters and genomic data will be combined to identify Pliocene aged caudates recovered from the Camp del Ninots Lagerstätte using Bayesian phylogenetics, which will provide time-calibrations of when the Spanish fossil caudates originated in comparison to extant congeners. Caudates identified by Bayesian phylogenetic methods will then act as fossil calibration points to phylogeographically determine how caudates dispersed spatio-temporally into Spain from Africa or the rest of Europe. It is hoped that this research can improve our understanding of caudate evolution in the Neogene, but also how we can project caudate responses to climatic change in the future and mitigate biodiversity loss.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

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Coordinator

FUNDACIO PRIVADA INSTITUT CATALA DE PALEOECOLOGIA HUMANA I EVOLUCIO SOCIAL
Net EU contribution
€ 209 914,56
Address
ZONA EDUCACIONAL 4 CAMPUS SESCELADE EDI NUM 3 UNIVERSITAT ROVIRA I VIRGILI
43007 Tarragona
Spain
Region
Este Cataluña Tarragona
Activity type
Research Organisations
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Total cost
No data

Partners (1)