Browsing by Author "Olabarria, Celia"
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- Harnessing positive species interactions as a tool against climate-driven loss of coastal biodiversityPublication . Bulleri, Fabio; Eriksson, Britas Klemens; Queiros, Ana; Airoldi, Laura; Arenas, Francisco; Arvanitidis, Christos; Bouma, Tjeerd J.; Crowe, Tasman P.; Davoult, Dominique; Guizien, Katell; Ivesa, Ljiljana; Jenkins, Stuart R.; Michalet, Richard; Olabarria, Celia; Procaccini, Gabriele; Serrao, Ester; Wahl, Martin; Benedetti-Cecchi, LisandroHabitat-forming species sustain biodiversity and ecosystem functioning in harsh environments through the amelioration of physical stress. Nonetheless, their role in shaping patterns of species distribution under future climate scenarios is generally overlooked. Focusing on coastal systems, we assess how habitat-forming species can influence the ability of stress-sensitive species to exhibit plastic responses, adapt to novel environmental conditions, or track suitable climates. Here, we argue that habitat-former populations could be managed as a nature-based solution against climate-driven loss of biodiversity. Drawing from different ecological and biological disciplines, we identify a series of actions to sustain the resilience of marine habitat-forming species to climate change, as well as their effectiveness and reliability in rescuing stress-sensitive species from increasingly adverse environmental conditions.
- Loss of surficial sedimentary carbon stocks in seagrass meadows subjected to intensive clam harvestingPublication . Román, Marta; de los Santos, Carmen B.; Román, Salvador; Santos, Rui; Troncoso, Jesús S.; Vázquez, Elsa; Olabarria, CeliaSeagrass carbon stocks are vulnerable to physical disturbance. We assessed the effect of clam harvesting on the organic carbon (Corg) stocks in surface sediments in four intertidal Zostera noltei meadows on the Iberian Atlantic coast (Spain and Portugal), by comparing undisturbed and harvested areas. We also monitored the spatial cover of the meadows throughout the growing season. Sedimentary Corg content and Corg stocks were about four times lower in intensively harvested areas than in control areas, but there were not differences between areas with low harvesting pressure and control areas. Reductions of 53–85% in sedimentary Corg stocks of Z. noltei meadows were caused by intensive clam harvesting. The effect of intensive clam harvesting on Corg stocks increased throughout the growing season, but the area covered by the seagrass increased from 21 to 37%, suggesting rapid recovery of seagrass canopies and potential recovery of sedimentary Corg stocks.