RT Journal Article
T1 Iberian intertidal turf assemblages dominated by Erythroglossum lusitanicum (Ceramiales, Rhodophyta): structure, temporal dynamics, and phenology
A1 Díaz Tapia, Pilar
A1 Bárbara, Ignacio
A1 Barreiro, Rodolfo
K1 Erythroglossum lusitanicum
K1 Intertidal turf
K1 Phenology
K1 Temporal dynamics
K1 Assemblage structure
AB Erythroglossum lusitanicum is a foliose, turf-forming member of the Delesseriaceae that colonizes sand-covered intertidal rocks on the Atlantic Iberian Peninsula. We examined (i) the phenology of this alga and (ii) the structure and temporal dynamics of its associated fl ora at two sites over one year. Species diversity was low in the assemblage, which was dominated by E. lusitanicum. Assemblage structure was essentially constant through the year. There were, however, significant differences in E. lusitanicum characteristics between the two sites. At one, E. lusitanicum was more abundant, thalli were longer and wider, and the proportion of plants with tetrasporangia was higher than at the second location. At the first site, the phenological traits tracked a temporal cycle. Thallus length and blade width were highest in April; after gradual deterioration of the apical portions of the plants, individual sizes reached minimum values in July. Subsequently, individual growth rate was low and plant length was nearly constant from September to February. Tetrasporangia were common throughout most of the year; only in July they were totally absent. Temperature and daylength were inversely related to reproduction. Sexual reproductive structures were not observed. The abundant growth of basal proliferations suggests that vegetative propagation very probably plays an important role in the maintenance of E. lusitanicum populations.
PB Walter de Gruyter
SN 1437-4323
YR 2011
FD 2011-12-11
LK http://hdl.handle.net/10347/32801
UL http://hdl.handle.net/10347/32801
LA eng
NO Diaz Tapia, P., Barbara, I., & Barreiro, R. (2011). Iberian intertidal turf assemblages dominated by Erythroglossum lusitanicum (Ceramiales, Rhodophyta): structure, temporal dynamics, and phenology. Botanica Marina, 54: 507–521.
NO This study was funded by a grant from Deputación da Coruña and it is a contribution to the projects CTM2007-61011 and CGL2009-09495/BOS (Ministerio de Ciencia e Innovación, partially founded by FEDER)
DS Minerva
RD 28 abr 2026