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Population genomics and the environmental drivers of population structure in a cosmopolitan marine predator, Tursiops truncatus
Daniel M. Moore, André E. Moura, Ada Natoli, Elena Papale, Mónica A. Silva, Tilen Genov, Stefania Gaspari, Giuseppa Buscaino, Per Berggren, A. Rus Hoelzel, 2025, izvirni znanstveni članek

Opis: The marine environment comprises vast regions without physical barriers to movement, making the understanding of population isolation and the evolution of diversity challenging. This is especially the case for highly mobile marine species. Here we investigate populations of the common bottlenose dolphin (Tursiops truncatus) across the Mediterranean Sea and adjacent North Atlantic using high-resolution genomic markers (RADseq) and stable isotope analyses to better understand the evolution of population structure in this system. High-resolution genomic data and broad geographic sampling revealed patterns of structure not previously identified, and integration with stable isotope data suggests that prey choice varies across this region. Unexpected patterns included genetic and isotopic similarity between the North Atlantic and the region around Sicily (but not including the medially located Gulf of Cádiz and surrounding regions). The regional habitat within and beyond the Mediterranean Sea is structured with ocean frontal systems including thermal and halocline transitions, several of which show alignment with genetic transitions within our data. Our data help to distinguish among possible drivers of population differentiation for a marine predator that has the potential for long-distance dispersion. 1 Introduction
Ključne besede: genomics, phylogeography, population structure, stable isotopes, Tursiops truncatus
Objavljeno v RUP: 27.12.2025; Ogledov: 368; Prenosov: 0
.pdf Celotno besedilo (2,77 MB)
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Isotope and archaeobotanical analysis reveal radical changes in mobility, diet and inequalities around 1500 BCE at the core of Europe
Claudio Cavazzuti, Anikó Horváth, Anett Gémes, Kristóf Fülöp, Tamás Szeniczey, János Gábor Tarbay, Ashley McCall, Beatriz Gamarra Rubio, Magdolna Vicze, Annamária Bárány, Mario Novak, 2025, izvirni znanstveni članek

Opis: The transition from the Middle to the Late Bronze Age (around 1500 BCE) in the Carpathian Basin was parallel by drastic cultural changes in Central-Europe, which strongly influenced the dynamic of prehistoric Europe. The cultural fragmentation of the Middle Bronze Age (2000 − 1500 BCE) Carpathian Basin was followed by a more homogeneous development at the beginning of the Late Bronze Age (1500 − 1300 BCE), with the appearance of the Tumulus culture. In the beginning of this period, the long-used tell-settlements were abandoned, furthermore new pottery styles and metal types appeared. Whether these changes were caused by immigration, or a local adaptation to external influxes, has long been a matter of debate. Our study investigates this transition from the point of view of diet and mobility from several key-sites of Hungary. Our results show (1) low migration rates and a shift of migration trajectories; that (2) the beginning of the systematic consumption of Panicum miliaceum was from 1540 − 1480 BCE; that (3) the decrease of average animal protein intake was parallel by an increase of cereal consumption and a tendency to less unequal diet. Overall, our results shed new light on the dynamics of complex change in Bronze Age Europe.
Ključne besede: Bronze Age, Hungary, stable isotopes
Objavljeno v RUP: 26.08.2025; Ogledov: 381; Prenosov: 6
.pdf Celotno besedilo (2,18 MB)
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