A mega-nourishment creates novel habitat for intertidal macroinvertebrates by enhancing habitat relief of the sandy beach

Abstract

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Bio‐energetic data show weak spatial but strong seasonal differences in wetland quality for waders in a Mediterranean migration bottleneck

“…That is, the differential contribution of larger‐bodied and heavier species between seasons and at different locations. Seasonal or, in a wider sense, temporal fluctuations in food availability have been reported in other studies (Beukema, 1974; Dierschke, Kube, Probst, & Brenning, 1999; Esselink & Zwarts, 1989; Zwarts & Wanink, 1993), although many studies are often (inevitably) focused on one part of the annual cycle or migratory range (Beukema, Essink, Michaelis, & Zwarts, 1993; Lourenço et al., 2018; van Egmond et al., 2018). The peak of spring migration (March–April) is synchronised with the start of the productive season in Mediterranean coastal wetlands, whereas by autumn (September), many wetlands have dried up and have thus become less attractive to waterbirds (Kazantzidis et al., 2009).…”

“…Benthic macroinvertebrates in coastal wetlands are mostly sedentary and adapted to tolerate environmental fluctuations in for instance salinity and temperature in situ. Apart from providing food to many other species, benthic macroinvertebrates are involved in decomposition, nutrient cycling, and sediment transportation and fixation (Bocher et al., 2014; Levin et al., 2001; Lourenço, Granadeiro, & Catry, 2018; van Egmond et al., 2018). Several studies have reported on the macroinvertebrate prey availability of a particular region or site, relating macroinvertebrate abundance of specific taxa to wader occurrences or even patterns of foraging intensity and prey intake (Bocher et al., 2014; Gurney, Clark, Slattery, & Ross, 2017; Jing, Ma, Li, Li, & Chen, 2007; Lourenço et al., 2018; Moreira, 1997).…”

Data set of submerged sand deposits organised in an interoperable spatial data infrastructure (Western Sardinia, Mediterranean Sea)

“…The continental shelf is sediment-starved, with limited land-to-sea sedimentary run-off. The transgressive deposits associated with the last sea level rise are characterised by siliciclastic sands and calcareous bioclastic sands (Carboni et al, 1989;De Falco et al, 2008, 2010 along the inner shelf as well as clays and calcareous mud along the outer shelf (Carboni et al, 1989).…”

“…The EUROSION concepts were applied to the Conscience Project, which also includes the sediment reservoirs on the sediment cell that can act as a source of sediment (Van Rijn, 2010). These aspects are also discussed in the Micore Project, which stressed the application of nourishment projects to contrast climate change effects, in particular extreme storms and the sea level rise (Ciavola et al, 2011).…”

Dataset of Submerged Sand Deposits organised in an interoperable Spatial Data Infrastructure (Western Sardinia, Mediterranean Sea)

“…Extensive interventions of beach nourishment based on the massive use of sediments have been carried out in northern and southern Europe and along the United States to tackle problems of erosion (Finkl and Walker 2005;Radermacher et al, 2017;Pranzini 2017;van Egmond et al, 2018). In some cases, these interventions were realized using tens of millions of m 3 of sand (Richards et al, 2009).…”