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Title: | Effective dispersal and density-dependence in mesophotic macroalgal forests: Insights from the Mediterranean species Cystoseira zosteroides |
Author: | Capdevila Lanzaco, Pol Linares Prats, Cristina Aspillaga Cuevas, Eneko Riera, Joan Lluís Hereu Fina, Bernat |
Keywords: | Algues marines Ecologia marina Mediterrània (Mar) Marine algae Marine ecology Mediterranean Sea |
Issue Date: | 12-Jan-2018 |
Publisher: | Public Library of Science (PLoS) |
Abstract: | Dispersal and recruitment are fundamental processes for population recovery following disturbances in sessile species. While both processes are well understood for many terrestrial species, they still remain poorly resolved for some macroalgal species. Here we experimentally investigated the effective dispersal and recruit survival of a mesophotic Mediterranean fucoid, Cystoseira zosteroides. In three isolated populations, four sets of settlement collectors were placed at increasing distances (from 0 to 10 m) and different orientations (North, South, East and West). We observed that effective dispersal was restricted to populations' vicinity, with an average of 6.43 m and not further than 13.33 m, following a Weibull distribution. During their first year of life, survival was up to 50%, but it was lower underneath the adult canopy, suggesting a negative density-dependence. To put our results in a broader context we compared the effective dispersal of other fucoid and kelp species reported in the literature, which confirmed the low dispersal ability of brown algae, in particular for fucoids, with an effective dispersal of few meters. Given the importance of recruitment for the persistence and recovery of populations after disturbances, these results underline the vulnerability of C. zosteroides and other fucoid species to escalating threats. |
Note: | Reproducció del document publicat a: https://doi.org/10.1371/journal.pone.0191346 |
It is part of: | PLoS One, 2018, vol. 13, num. 1, p. 1-15 |
URI: | http://hdl.handle.net/2445/121604 |
Related resource: | https://doi.org/10.1371/journal.pone.0191346 |
ISSN: | 1932-6203 |
Appears in Collections: | Articles publicats en revistes (Institut de Recerca de l'Aigua (IdRA)) Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals) Articles publicats en revistes (Institut de Recerca de la Biodiversitat (IRBio)) Publicacions de projectes de recerca finançats per la UE |
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