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Derycke, S.; Van Vynckt, R.; Vanaverbeke, J.; Vincx, M.; Moens, T. (2007). Colonization patterns of Nematoda on decomposing algae in the estuarine environment: community assembly and genetic structure of the dominant species Pellioditis marina. Limnology and Oceanography. 52(3): 992-1001.
179145
Derycke, S.; Van Vynckt, R.; Vanaverbeke, J.; Vincx, M.; Moens, T.
2007
Colonization patterns of Nematoda on decomposing algae in the estuarine environment: community assembly and genetic structure of the dominant species Pellioditis marina
Limnology and Oceanography
52(3): 992-1001
Publication
NeMys doc_id: 17969
Available for editors  PDF available
We performed a field experiment in the Westerschelde Estuary (The Netherlands) to characterize the colonization dynamics of nematodes in relation to the proximity of a source population and to local environmental conditions. The effects of colonization on the population genetic structure of the dominant species, Pellioditis marina, were simultaneously investigated. Two contrasting sites, each containing four patches with defaunated algae, were sampled seven times during 1 month. Site A was situated amidst Fucus stands, which permanently harbor P. marina, while site B was approximately 100 m from any source population and experienced more stressful environmental conditions. We hypothesized that (1) colonization in site A would proceed faster than in site B and that (2) founder events and genetic bottlenecks would affect population genetic structure and differentiation at site B more than at site A. We screened 992 individuals for variation in 426 base pairs of the cytochrome oxidase c subunit 1 gene with the single-strand conformation polymorphism method. The algal deposits at site A were indeed more rapidly colonized and reached fivefold higher densities of nematodes than those in site B. Haplotype composition in site A was very similar to that of the source population, while rare haplotypes were abundant and genetic diversity was lower in site B. We conclude that founder effects and genetic bottlenecks structured the populations in site B. The genetic differences between patches in each site further indicate that effective migration in P. marina is low and that priority effects influence the genetic structure of P. marina populations.
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2014-06-18 16:05:08Z
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Unreviewed: has not been verified by a taxonomic editorCalyptronema Marion, 1870 (additional source)
Checked: verified by a taxonomic editorChromadora Bastian, 1865 (additional source)
Checked: verified by a taxonomic editorChromadorina Filipjev, 1918 (additional source)
Checked: verified by a taxonomic editorDaptonema Cobb, 1920 (additional source)
Checked: verified by a taxonomic editorDesmolaimus de Man, 1880 (additional source)
Checked: verified by a taxonomic editorDiplolaimella Allgén, 1929 (additional source)
Unreviewed: has not been verified by a taxonomic editorEurystomina Filipjev, 1921 (additional source)
Checked: verified by a taxonomic editorHalomonhystera Andrássy, 2006 (additional source)
Checked: verified by a taxonomic editorHalomonhystera disjuncta (Bastian, 1865) Andrassy, 2006 (taxonomy source)
Checked: verified by a taxonomic editorMetachromadora Filipjev, 1918 (additional source)
Checked: verified by a taxonomic editorMicrolaimus de Man, 1880 (additional source)
Checked: verified by a taxonomic editorMonhystera Bastian, 1865 (additional source)
Checked: verified by a taxonomic editorNeochromadora Micoletzky, 1924 (additional source)
Unreviewed: has not been verified by a taxonomic editorOncholaimus Dujardin, 1845 (additional source)
Unreviewed: has not been verified by a taxonomic editorPanagrolaimus Fuchs, 1930 (additional source)
Checked: verified by a taxonomic editorParacanthonchus Micoletzky, 1924 (additional source)
Checked: verified by a taxonomic editorParacyatholaimus Micoletzky, 1922 (additional source)
Checked: verified by a taxonomic editorPtycholaimellus Cobb, 1920 (additional source)
Checked: verified by a taxonomic editorRhabditis (Pellioditis) (additional source)
Checked: verified by a taxonomic editorRhabditis (Pellioditis) marina (Bastian, 1865) Andrassy, 1984 accepted as Checked: verified by a taxonomic editorLitoditis marina (Bastian, 1865) Sudhaus, 2011 (taxonomy source)
Checked: verified by a taxonomic editorSpilophorella Filipjev, 1917 (additional source)
Checked: verified by a taxonomic editorSyringolaimus de Man, 1888 (additional source)
Checked: verified by a taxonomic editorTheristus Bastian, 1865 (additional source)
Checked: verified by a taxonomic editorTripyloides de Man, 1886 (additional source)