Genetic Consequences of Pleistocene Sea-Level Change on Hawaiian Megalagrion Damselflies.

@article{Jones2015GeneticCO,
  title={Genetic Consequences of Pleistocene Sea-Level Change on Hawaiian Megalagrion Damselflies.},
  author={Brandon R. Jones and Steve Jordan},
  journal={The Journal of heredity},
  year={2015},
  volume={106 5},
  pages={
          618-27
        }
}
The Hawaiian Islands have long been an important laboratory for evolutionary research because their geological histories offer many natural experiments. For example, the Maui Nui complex, 4 islands that have been repeatedly connected and separated by fluctuating sea levels, lie near Hawaii Island, which has never been connected to another island. Here, we examine the genetic consequences of fluctuating island areas and connectivity using microsatellite analysis of 2 widespread, endemic Hawaiian… 

Figures from this paper

Closing the gap: Avian lineage splits at a young, narrow seaway imply a protracted history of mixed population response
TLDR
Contrary patterns indicate priority effects and other ecological factors have a strong influence on spatial exchange at this scale, and North Island Weka have higher mtDNA diversity than the more wide‐ranging southern Weka.
Insect Radiations on Islands: Biogeographic Pattern and Evolutionary Process in Hawaiian Insects
TLDR
It is found that, in contrast to earlier views, a substantial fraction of Hawaiian insect clades colonized the archipelago prior to the formation of the current high islands (5.1 Ma), and a positive relationship between clade age and species richness in Hawaiian insects is found, but with a great deal of variance that is likely explained by aspects of ecology and clade-specific factors.
Evolutionary genomics of endangered Hawaiian tree snails (Achatinellidae: Achatinellinae) for conservation of adaptive capacity
TLDR
This study clarifies evolutionary relationships within this model system for adaptive radiation, forming the basis for conservation strategies such as translocation, captive rearing, and hybridization trials to prevent the loss of capacity to adapt to rapidly changing environmental conditions.
Quaternary Vicariance of Lotic Coeliccia in the Ryukyu-Taiwan Islands Contrasted with Lentic Copera
TLDR
It is demonstrated that severe vicariant speciation acted on lotic Coeliccia in contrast to lentic Copera damselflies, which are both included in the family Platycnemididae.
Evolutionary history of a beautiful damselfly, Matrona basilaris, revealed by phylogeographic analyses: the first study of an odonate species in mainland China
TLDR
The pre-LGM expansion model reflected a different pattern affecting the historical dynamics of the population of East Asian species caused by Pleistocene climatic changes, and Interestingly, Group 2 exhibited a disjunctive distribution pattern.

References

SHOWING 1-10 OF 66 REFERENCES
Phylogeographic patterns of Hawaiian Megalagrion damselflies (Odonata: Coenagrionidae) correlate with Pleistocene island boundaries
TLDR
It is proposed that repeated bottlenecks on Maui Nui caused by sea level change and restricted habitat availability are likely responsible for low genetic diversity there, and an island analogue to northern genetic purity and southern diversity is proposed, whereby islands with little suitable habitat exhibit genetic purity while islands with more exhibit genetic diversity.
Historical fragmentation of islands and genetic drift in populations of Galápagos lava lizards (Microlophus albemarlensis complex)
TLDR
It is concluded that seawater is a significant barrier to gene flow in lava lizards on this timescale and that genetic drift may have played a substantial role in observed patterns of phenotypic variation among islands.
Blue hawaiiense and Beyond: Conservation Genetics and Comparative Phylogeography of Four Hawaiian Megalagrion Damselfly Species (Odonata: Coenagrionidae)
TLDR
This preliminary study of phylogeography and conservation genetics has sequenced about 660 base pairs of the mitochondrial COII gene from 191 damselflies from four species, including 31 populations that span a gradient of endangerment.
Dispersal is fundamental to biogeography and the evolution of biodiversity on oceanic islands
TLDR
The importance of continuing research on mechanisms generating oceanic island biodiversity, especially detection of general, non-random patterns of dispersal, is stressed, and the need to acknowledge oceanic dispersal as significant and worthy of research is acknowledged.
A geographic mosaic of passive dispersal: population structure in the endemic Hawaiian amber snail Succinea caduca (Mighels, 1845)
TLDR
Mismatch distributions and population partitioning patterns suggest that genetic fragmentation has been driven by punctuated, passive dispersal of groups of closely related haplotypes that subsequently expanded and persisted in isolation for long periods (average > 2 million years ago), and that Pleistocene island connections may have been important in enhancing gene flow.
Birth of a hotspot of intraspecific genetic diversity: notes from the underground
TLDR
The results point to the admixture between differentiated lineages as the main cause of the higher levels of diversity of refugial populations, when compared with the Pleistocene evolutionary history recently inferred for species from both the same and other geographic regions.
Speciation and phylogeography of Hawaiian terrestrial arthropods
The Hawaiian archipelago is arguably the world’s finest natural laboratory for the study of evolution and patterns of speciation. Arthropods comprise over 75% of the endemic biota of the Hawaiian
Some genetic consequences of ice ages, and their role in divergence and speciation
The genetic effects of pleistocene ice ages are approached by deduction from paleoenvironmental information, by induction from the genetic structure of populations and species, and by their
Contrasting response to Pleistocene climate change by ground-living and arboreal Mandarina snails from the oceanic Hahajima archipelago
  • A. Davison, S. Chiba
  • Environmental Science, Biology
    Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2008
While the genetic impact of Pleistocene climate change on temperate species has been well characterized, especially in Europe and North America, an effect on the diversification of species on oceanic
Phylogenetic Analysis of the Hawaiian Damselfly Genus Megalagrion (Odonata: Coenagrionidae): Implications for Biogeography, Ecology, and Conservation Biology
TLDR
Based on this phylogeny, it appears that the major clades within Megalagrion differentiated on Kaua'i or an antecedent high island, and subsequently colonized the younger islands in the chain in an independent and sequential fashion.
...
...