Genetic Diversity and Evolution of Marine Animals Isolated in Marine Lakes

Hanzawa, Naoto; Gotoh, Ryo O.; Sekimoto, Hidekatsu; Goto, Tadasuke V.; Chiba, Satoru; Kuriiwa, Kaoru; Tamate, Hideo

doi:10.5772/34427

Cited by 6 publications

(5 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mayr, ; Kolbe et al ., ). Concomitantly, marine lakes also harbour genetically isolated populations (Dawson & Hamner, ; Hanzawa et al ., ), subspecies (Dawson, ) and species new to science (Fautin & Fitt, ; Monniot & Monniot, ). Ecological studies of marine lake populations that might demonstrate those formative processes in action are lacking.…”

Section: Island and Island‐like Marine Environmentsmentioning

confidence: 99%

“…Ecological studies of marine lake populations that might demonstrate those formative processes in action are lacking. However, population genetic and evolutionary analyses do indicate that the establishment of marine lake populations involved genetic drift and subsequent selection (Dawson & Hamner, 2005;Hanzawa et al, 2012). For example, Mastigias jellyfish populations endemic to half a dozen marine lakes in Palau, each have low genetic diversity but distinct lake-specific behaviours and morphologies (Hamner & Hauri, 1981;Dawson & Hamner, 2003.…”

Section: Marine Lakesmentioning

confidence: 99%

See 1 more Smart Citation

Island and island‐like marine environments

Dawson

Santos²

2015

Global Ecology and Biogeography

View full text Add to dashboard Cite

Islands are pieces of land entirely surrounded by sea on which terrestrial and marine organisms live as little as a few metres apart. Yet, in contrast to terrestrial species, marine species have attracted little attention in studies of island theory. The experimental and conceptual origins of this dichotomy date back to the 1970s, although the apposition has softened in the early 2000s, in part a consequence of phylogeographic analyses and the discovery of new marine environments. Here, I explore the possible range of island and island-like settings in the marine realm and find good evidence, albeit in short supply, for integrating marine with terrestrial perspectives during the current transition from equilibrium to general dynamic models of island biogeography. This integration of marine systems into island theory will be facilitated by three advances: (1) development of many descriptive marine studies to reduce the current deficit, (2) design of rigorous comparative studies within and across realms, and (3) modification of conceptual models to unite seemingly disparate situations, for example describing islands in terms of ecological-evolutionary processes. Marine island biogeography is in its infancy; it may present situations that are uncommon in the existing literature, but not rare in nature, and thus contribute substantially to the new dynamic outlook on a halfcentury-old theme.

show abstract

Section: Island and Island‐like Marine Environmentsmentioning

confidence: 99%

Section: Marine Lakesmentioning

confidence: 99%

Island and island‐like marine environments

Dawson

Santos²

2015

Global Ecology and Biogeography

View full text Add to dashboard Cite

show abstract

“…We do note that the estimations may be crude, as they have large confidence intervals, and are dependent on a variety of assumptions (mutation rate and generation time). Bottlenecks with subsequent expansions have also been found in studies of other peripheral environments (Dawson & Hamner, 2005;Gotoh, Chiba, Goto, Tamate, & Hanzawa, 2011;Hanzawa et al, 2012), which show rapid accumulation of mutations in populations after colonization of the habitat in a typical pattern of founder effects.…”

Section: Marine Lake Colonization and Population Structurementioning

confidence: 71%

Rapid divergence of mussel populations despite incomplete barriers to dispersal

Maas

Prost

et al. 2018

Molecular Ecology

View full text Add to dashboard Cite

Striking genetic structure among marine populations at small spatial scales is becoming evident with extensive molecular studies. Such observations suggest isolation at small scales may play an important role in forming patterns of genetic diversity within species. Isolation-by-distance, isolation-by-environment and historical priority effects are umbrella terms for a suite of processes that underlie genetic structure, but their relative importance at different spatial and temporal scales remains elusive. Here, we use marine lakes in Indonesia to assess genetic structure and assess the relative roles of the processes in shaping genetic differentiation in populations of a bivalve mussel (Brachidontes sp.). Marine lakes are landlocked waterbodies of similar age (6,000-10,000 years), but with heterogeneous environments and varying degrees of connection to the sea. Using a population genomic approach (double-digest restriction-site-associated DNA sequencing), we show strong genetic structuring across populations (range F : 0.07-0.24) and find limited gene flow through admixture plots. At large spatial scales (>1,400 km), a clear isolation-by-distance pattern was detected. At smaller spatial scales (<200 km), this pattern is maintained, but accompanied by an association of genetic divergence with degree of connection. We hypothesize that (incomplete) dispersal barriers can cause initial isolation, allowing priority effects to give the numerical advantage necessary to initiate strong genetic structure. Priority effects may be strengthened by local adaptation, which the data may corroborate by showing a high correlation between mussel genotypes and temperature. Our study indicates an often-neglected role of (evolution-mediated) priority effects in shaping population divergence.

show abstract

“…The speed with which it covers substrate is a point of concern for aquarists, who note that it grows over corals and other ornamentals and can clog aquarium filters (Ram 2013). Exaiptasia pallida may play a similar fouling role in native environments, as it is often found on shells, coral skeletons, and the roots of mangroves, and this proliferative power makes its appearance of concern in sensitive environments such as isolated marine lakes (Hanzawa et al 2012;Patris et al 2019), in Madeira (Canning-Clode et al 2013; Wirtz 2014) and in the Galapagos Islands (Carlton et al 2019), although the quantified effects of E. pallida in these systems so far has either not been studied or is minimal (Patris et al 2019). Experimental competitive interactions between E. pallida and native European species indicate that it is competitively matched by ecologically similar native species and thus unlikely to become dominant (Escribano-Á lvarez and López-González 2018).…”

Section: Sagartia Elegansmentioning

confidence: 99%

Mediators of invasions in the sea: life history strategies and dispersal vectors facilitating global sea anemone introductions

et al. 2020

View full text Add to dashboard Cite

Widespread non-native species tend to demonstrate an apparent lack of selectivity in habitat requirements, feeding regimes, and reproductive needs, while displaying a tendency to thrive in human-modified habitats. The high phenotypic plasticity typical of sessile, substrate-attached marine species may enhance their chances of survival and spread in a new region. Anthropogenic activities have changed marine habitats over a wide range of phenomena, including water temperature, community species composition, and the types of available substrates, creating new physical and biotic regimes that may contribute to the potential for successful species introduction. Here we examine ten species of sea anemones that have been introduced outside of their native range, and elucidate specific characteristics that are common among globally introduced sea anemones. Various life history strategies enable these species to survive and flourish through transport, introduction, establishment and spread, leading to the successful colonization of a new geographic area. Considering life history strategies and weighing of vector potential, we suggest conditions that facilitate introduction of these species, and identify species of sea anemones that may be introduced in the future in the face of changing climate and increased anthropogenic activities.

show abstract

Genetic Diversity and Evolution of Marine Animals Isolated in Marine Lakes

Cited by 6 publications

References 64 publications

Island and island‐like marine environments

Island and island‐like marine environments

Rapid divergence of mussel populations despite incomplete barriers to dispersal

Mediators of invasions in the sea: life history strategies and dispersal vectors facilitating global sea anemone introductions

Contact Info

Product

Resources

About