Distribution of foraminifera in salt marshes along the Atlantic coast of SW Europe: Tools to reconstruct past sea-level variations

Taxonomy, ecology and biogeographical trends of dominant benthic foraminifera species from an Atlantic-Mediterranean estuary (the Guadiana, southeast Portugal)

“…This relationship was reported previously for the Guadiana (González et al, 2000;Ruiz et al, 2005), and in other areas (some of the Nova Scotia marshes- Fraser River Delta-Patterson, 1990). In other estuarine systems all over the Iberian Peninsula (Morbihan, Basque, Minho-Lima and Sado- Leorri et al, 2010), both J. macrescens and T. inflata are dominant components at the most elevated zones, but species association/succession is not exactly the same as that found in the Guadiana, probably due to local environmental differences. No other species is intrinsically related to J. macrescens and T. inflata, but several species with ephemeral occurrences seem to share similar habitat preferences.…”

“…In Portugal, most ecological studies based on estuarine foraminifera have been performed in order to establish modern databases through which fossil foraminiferal assemblages can be compared and interpreted (e.g., Fatela and Silva, 1990;Cearreta et al, 2002Cearreta et al, , 2007Andrade et al, 2004;Moreno et al, 2005;Fatela et al, 2009;Leorri et al, 2010). Nevertheless, the resulting taxonomic data are very limited, with little systematic study and no molecular analysis.…”

Recent environmental evolution of regenerated salt marshes in the southern Bay of Biscay: Anthropogenic evidences in their sedimentary record

“…Instead, in areas that were subject of heavy pollution, oxygen water levels seemed to be the main control Leorri et al, 2008a). Foraminiferal assemblages described here represent marsh settings dominated by elevation in relation to the tidal frame as described in the literature for this region and the SW European coast (Leorri et al, 2010). In order to support the identification of the different depth intervals (DI) dominated by different foraminiferal assemblages, cluster analysis (CA) and detrended corresponded analysis (DCA) were used (see Leorri et al, 2008b andPruitt et al, 2010 for discussion about the methods) but statistical analyses only confirmed previously identified changes and are not subsequently discussed.…”

Salt marshes as late Holocene tide gauges

“…It is relatively uncommon to find linear species-environment responses in Holocene RSL studies due to the typically Gaussian distribution of species relative to an environmental variable and therefore we do not explore this part of the reconstruction pathway further. Exceptions include Leorri et al (2010) and Rossi et al (2011) who develop foraminifera datasets from a relatively short vertical range with respect to the local tidal range, and therefore the modelled species-environmental response appears linear. Birks (1995Birks ( , 2003Birks ( , 2010 provides comprehensive reviews of the different statistical approaches; they are not the specific focus of this paper.…”