Atypical panmixia in a European dolphin species (Delphinus delphis): implications for the evolution of diversity across oceanic boundaries

@article{Moura2013AtypicalPI,
  title={Atypical panmixia in a European dolphin species (Delphinus delphis): implications for the evolution of diversity across oceanic boundaries},
  author={Andr{\'e} E. Moura and Ada Natoli and Emer Rogan and A. Rus Hoelzel},
  journal={Journal of Evolutionary Biology},
  year={2013},
  volume={26}
}
Despite the scarcity of geographical barriers in the ocean environment, delphinid cetaceans often exhibit marked patterns of population structure on a regional scale. The European coastline is a prime example, with species exhibiting population structure across well‐defined environmental boundaries. Here we undertake a comprehensive population genetic study on the European common dolphin (Delphinus delphis, based on 492 samples and 15 loci) and establish that this species shows exceptional… 

Phylogeography and population dynamics of the white-sided dolphin (Lagenorhynchus acutus) in the North Atlantic

An assessment from both sides of the North Atlantic of differentiation among populations of a dolphin species that inhabits mainly pelagic waters, the Atlantic white-sided dolphin, finds evidence for connectivity among populations from either side of theNorth Atlantic, and differentiation between putative populations in the far northeast compared with all other areas sampled.

Drivers of Population Structure of the Bottlenose Dolphin (Tursiops truncatus) in the Eastern Mediterranean Sea

The results suggest that bottlenose dolphin exhibits population structures that correspond well to the main Mediterranean oceanographic basins, and describes for the first time, a distinction between populations inhabiting pelagic and coastal regions within the Mediterranean.

High Connectivity of the White Seabream (Diplodus sargus, L. 1758) in the Aegean Sea, Eastern Mediterranean Basin

Analysis of the genetic diversity and structure of white seabream in the eastern Mediterranean basin using a panel of four microsatellite markers suggests high gene flow which may imply near-panmixia between populations, indicating the possibility of a probable movement of adult migrants, or strong passive drift at sea in early life stages of the species.

truncatus ) in the Eastern 1 Mediterranean Sea 2 3 4

21 The drivers of population differentiation in oceanic dispersal organisms have been crucial for research in 22 evolutionary biology. Adaptation to different environments is commonly invoked as an

Phylogeography and population structure in highly mobile marine taxa in the western Indian Ocean : bottlenose dolphins (Tursiops spp.) and common dolphins (Delphinus sp.)

  • H. Gray
  • Biology, Environmental Science
  • 2016
Traditional and geometric morphometric techniques were used to investigate congruency between genetic and phenotypic differentiation of three BND lineages in the northwest IO, and strong differences were exhibited in morphology between common BNDs, T. truncatus, and T. aduncus.

Spatio-temporal patterns of genetic diversity in the Mediterranean striped dolphin (Stenella coeruleoalba )

This study characterise striped dolphin genetic composition in the Mediterranean Sea across both geography and time, and suggests that the observed changes in genetic and group composition could relate to specific dynamics of morbillivirus resistance.

Genetic homogeneity in the face of morphological heterogeneity in the harbor porpoise from the Black Sea and adjacent waters (Phocoena phocoena relicta)

This study illustrates how combining empirical and theoretical approaches can contribute to understanding patterns of weak population structure in highly mobile marine species.

A Matter of Scale: Population Genomic Structure and Connectivity of Fisheries At-Risk Common Dolphins (Delphinus delphis) From Australasia

An understanding of population structure and connectivity at multiple spatial scales is required to assist wildlife conservation and management. This is particularly critical for widely distributed

Common dolphins (Delphinus delphis) in Israel: Unique dynamics of a critically endangered population

The most eastern population of common dolphins (Delphinus delphis) in the Mediterranean Sea inhabits the southern coastal waters of Israel. They are mainly observed in the shallow waters off Ashdod

Habitat availability and geographic isolation as potential drivers of population structure in an oceanic dolphin in the Southwest Indian Ocean

The results indicate that geographic isolation and potentially other factors, such as shallow-water habitats to rest and socialise, may be important drivers of the genetic population structure of insular spinner dolphins in this region.

References

SHOWING 1-10 OF 97 REFERENCES

Phylogeography and alpha taxonomy of the common dolphin (Delphinus sp.)

High differentiation among the populations described as long‐beaked instead of the expected monophyly is found, suggesting that these populations may have evolved from independent events converging on the same morphotype.

Population structure of short-beaked common dolphins (Delphinus delphis) in the North Atlantic Ocean as revealed by mitochondrial and nuclear genetic markers

The understanding of population structure and gene flow of marine pelagic species is paramount to monitoring, management and conservation studies. Such studies are often hampered by the potentially

Conservation genetics of the short-beaked common dolphin (Delphinus delphis) in the Mediterranean Sea and in the eastern North Atlantic Ocean

Directional estimates of gene flow suggested movement of females out of the Mediterranean, which may be relevant to the population decline, and Phylogenetic analysis suggested that the observed population structure evolved recently.

Genetic isolation of a now extinct population of bottlenose dolphins (Tursiops truncatus)

It is shown that regional population structure in UK waters is consistent with earlier studies suggesting local habitat dependence for bottlenose dolphin in the Mediterranean Sea and North Atlantic, and not a case of historical range shift or contraction.

New insights on population genetic structure of Delphinus delphis from the northeast Atlantic and phylogenetic relationships within the genus inferred from two mitochondrial markers

The possibility for the existence of two divergent lineages that have evolved independently, a separate subspecies or events of introgressive hybridization is discussed.

POPULATION STRUCTURE OF EASTERN NORTH PACIFIC DELPHINUS DELPHIS

Evidence of genetic distinctness was detected for putative populations within the CA/OR/WA stock, which supports the biological evidence suggesting multiple stocks, and led to the conclusion that a molecular genetic study of population structure was feasible for the eastern North Pacific D. delphis population.

Fine-scale genetic structure in short-beaked common dolphins (Delphinusdelphis) along the East Australian Current

It is proposed that common dolphins along the EAC may be adapted to three water masses recently characterised in this region, characterised by three genetically differentiated populations with varying levels of admixture.

Rise of oceanographic barriers in continuous populations of a cetacean: the genetic structure of harbour porpoises in Old World waters

This work applies a combination of recent individual-based landscape genetic approaches to investigate the population genetic structure of a highly mobile extensive range cetacean, the harbour porpoise in the eastern North Atlantic, with regards to oceanographic characteristics that could constrain its dispersal.

Ecology, status and conservation of short-beaked common dolphins Delphinus delphis in the Mediterranean Sea

Current knowledge is reviewed and priorities for action aimed at identi- fying and mitigating the main threats to common dolphins in the Mediterranean are suggested, with the ultimate goal of restoring the species' favourable conservation status in the region.
...