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| De Jode, Aurélien; David, Romain; Haguenauer, Anne; Cahill, Abigail E.; Erga, Zinovia; Guillemain, Dorian; Sartoretto, Stephane; Rocher, Caroline; Selva, Marjorie; Le Gall, Line; Féral, Jean-pierre; Chenuil, Anne. |
| Ecosystem engineering species alter the physical structure of their environment and can create or modify habitats, having a massive impact on local biodiversity. Coralligenous reefs are highly diverse habitats endemic to the Mediterranean Sea built by calcareous benthic organisms among which Crustose Coralline Algae are the main engineering species. We analyzed the diversity of Lithophyllum stictiforme or L. cabiochiae in coralligenous habitats combining a multiple barcode and a population genomics approach with seascape features. Population genomics allowed disentangling pure spatial effects from environmental effects. We found that these taxa form a complex of eight highly divergent cryptic species that are easily identifiable using classic barcode... |
| Tipo: Text |
Palavras-chave: Engineering species; Cryptic species; Ecological niche; Coralligenous habitats; Ecological differentiation; Crustose Coralline Algae. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00487/59859/63014.pdf |
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| Rossi, Vincent; Lo, Madiop; Legrand, Terence; Ser-giacomi, Enrico; De Jode, Aurélien; Thierry De Ville D’avray, Laure; Pairaud, Ivane; Faure, Vincent; Fraysse, Marion; Pinazo, Christel; Chenuil, Anne. |
| Habitat connectivity is central to several key evolutionary and ecological processes, having implications for the spatial structuring of marine populations. For benthic species that have no or little mobility as adults, connectivity is evaluated by analyzing the dispersal of propagules across the seascape. We investigate fine-scale connectivity of coralligenous habitats in Marseille Bay (located in the north-western Mediterranean) sea using high-resolution cartography and a particle-tracking model ran over a range of parameters derived from the biological traits of potential target species. We present annual and seasonal means of various connectivity diagnostics measuring the retention and exchange of propagules among coralligenous patches. A synthetic... |
| Tipo: Text |
Palavras-chave: Habitat connectivity; Larval dispersal; Coralligenous assemblages; Benthic organisms; Oceanic circulation; Lagrangian modeling; Population genetics; Community composition. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00680/79225/81737.pdf |
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