Marine Regressions and the Evolution of Groundwater Dwelling Amphipods (Crustacea)

Notenboom, Jos

doi:10.2307/2845485

Cited by 100 publications

(79 citation statements)

References 46 publications

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“…This constantly changing topography was characterized by different timings of landmass uplift and drastic variations in sea level (Harzhauser & Piller 2007, Kováč et al 2007. Sea level fluctuations and the vicariance they create are considered to be of significant importance in the evolution of many, especially subterranean, freshwater amphipod taxa (Notenboom 1991;Holsinger 1994). We hypothesize that the dynamic geomorphology of the Carpathian region during the Late Tertiary has left its footprint on the contemporary ranges of Gammarus species in Romania.…”

Section: Resultsmentioning

confidence: 99%

Zoogeography of epigean freshwater Amphipoda (Crustacea) in Romania: <br />fragmented distributions and wide altitudinal variability

Copilaş‐Ciocianu

Grabowski

Pârvulescu

et al. 2014

Zootaxa

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Inland epigean freshwater amphipods of Romania are diverse and abundant for this region has a favourable geographical position between the Balkans and the Black Sea. Excluding Ponto-Caspian species originating in brackish waters and freshwater subterranean taxa, there are 11 formally recognized epigean freshwater species recorded from this country. They belong to 3 genera, each representing a different family: Gammarus (Gammaridae, 8 species or species complexes), Niphargus (Niphargidae, 2 epigean species) and Synurella (Crangonyctidae, one species). Their large-scale distribution patterns nevertheless remain obscure due to insufficient data, consequently limiting biogeographical interpretations. We provide extensive new data with high resolution distribution maps, thus improving the knowledge of the ranges of these taxa. Gammarus species display substantial altitudinal variability and patchy, fragmented distribution patterns. They occur abundantly, particularly in springs and streams, from lowlands to sub-mountainous and mountainous regions. In the light of recent molecular research, we hypothesize that the complex geomorphological dynamics of the Carpathian region during the Late Tertiary probably contributed to their allopatric distribution pattern. Contrasting with Gammarus, the genera Niphargus and Synurella exhibit low altitudinal variability, broad ecological valences and overlapping distributions, being widespread throughout the lowlands. The current distribution of N. hrabei and N. valachicus seems to be linked to the extent of the Paratethys during the Early Pliocene or Pleistocene. We further discuss the taxonomic validity of two synonymized and one apparently undescribed taxon, and provide an updated pictorial identification key that includes all taxa and forms discussed in our study. The mosaic distribution of epigean freshwater amphipod species in Romania shows that this region is particularly suitable for phylo-and biogeographical analyses of this group.

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Section: Resultsmentioning

confidence: 99%

Zoogeography of epigean freshwater Amphipoda (Crustacea) in Romania: <br />fragmented distributions and wide altitudinal variability

Copilaş‐Ciocianu

Grabowski

Pârvulescu

et al. 2014

Zootaxa

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“…Areas presently land that were ever covered by the DOI: 10.18195/issn.0313-122x.64.2001.063-083 sea, even as far back as the Mesozoic, often contain communities of obligate subterranean aquatic species of formerly marine lineages 'stranded' inland by marine recession (Stock, 1980;Boutin and Coineau, 1990;Notenboom, 1991;Holsinger, 1994), particularly in karst areas. This is especially nota~le in regions that have undergone substanhal orogenesis (Messouli et al, 1991;Boutin, 1993).…”

Section: Introductionmentioning

confidence: 99%

Groundwater calcrete aquifers in the Australian arid zone: the context to an unfolding plethora of stygal biodiversity

Humphreys¹

2001

Rec West Aust Mus Sup

104

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-The Western Shield of Australia has been above sea level since the Palaeozoic. It is incised by ancient palaeovalieys now containing groundwater calcretes that are found throughout much of arid Australia. The calcretes are deposited, owing to surface evaporation, from a groundwater flow path that increases in salinity from fresh to hypersaline groundwater each terminating at a salt lake (playa). The calcrete aquifers contain a diverse obligate groundwater fauna (stygofauna: predominantly Crustacea) in one of the oldest non-marine landscapes on Earth. Each of the 11 calcrete areas examined so far contains a unique fauna; there are over 210 large discrete calcrete bodies in the Western Australian arid zone. This paper examines a working hypothesis that the stygofauna became isolated in the upper tributaries of the palaeodrainage systems by the progressive upstream movement of salinity from the Eocene onwards. Although each calcrete body does have a unique fauna, as predicted by the hypothesis, the hypothesis has proved too simple because the hydrochemical cycles are repeated along the length of the palaeochannels, each terminating in a saltlake immediately downflow of the calcrete. A new hypothesis has to incorporate these intervals of hypersaline groundwater / calcrete discontinuities acting as barriers to dispersal of the stygofauna. The paper focuses on the geological and landscape setting, and the hydrochemical and groundwater context in which this stygal diversity is found. It is intended to serve as a background resource for further work on this diverse stygofauna. A synopsis is provided of the knowledge of this stygofauna. The presence of such highly diverse and locally endemic stygofauna, often ancient relictual lineages, in a major economic resource within arid Australia poses delicate and chalienging conservation issues. At the same time the scientific challenge is considerable to understand the development and functioning of these systems in order that they can be managed sustainably.

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“…The dynamic events, which led to the colonization and speciation in inland groundwater, have been widely discussed by several Authors for some crustacean taxa (Stock, 1980;Rouch & Danielopol, 1987;Boutin & Coineau, 1990;Notenboom, 1991;Coineau & Boutin, 1992;Holsinger, 1994;Stoch, 1995). As regards the genus Microcharon, a good correlation between patterns of relationship among the species and sequence of epicontinental sea regressions in the Mediterranean basin was suggested by Coineau (1994), who postulated a colonization of groundwater from marine ancestors and a subsequent speciation by vicariance, according to the "modele biphase" (Boutin & Coineau, 1990).…”

Section: Discussionmentioning

confidence: 99%

Microcharon novariensis, a new microparasellid isopod from groundwater in Italy (Crustacea, Isopoda, Janiroidea)

Stoch¹,

Galassi

2002

Italian Journal of Zoology

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Marine Regressions and the Evolution of Groundwater Dwelling Amphipods (Crustacea)

Cited by 100 publications

References 46 publications

Zoogeography of epigean freshwater Amphipoda (Crustacea) in Romania: <br />fragmented distributions and wide altitudinal variability

Zoogeography of epigean freshwater Amphipoda (Crustacea) in Romania: <br />fragmented distributions and wide altitudinal variability

Groundwater calcrete aquifers in the Australian arid zone: the context to an unfolding plethora of stygal biodiversity

Microcharon novariensis, a new microparasellid isopod from groundwater in Italy (Crustacea, Isopoda, Janiroidea)

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