13 results on '"Máñez-Crespo, Julia"'
Search Results
2. Seagrass Cymodocea nodosa across biogeographical regions and times: Differences in abundance, meadow structure and sexual reproduction
- Author
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Máñez-Crespo, Julia, Tuya, Fernando, Fernández-Torquemada, Yolanda, Royo, Laura, Pilar-Ruso, Yoana del, Espino, Fernando, Manent, Pablo, Antich, Laura, Castejón-Silvo, Inés, Curbelo, L., de la Ossa, José A., Hernan, Gema, Mateo-Ramírez, Ángel, Pereda-Briones, Laura, Jiménez-Ramos, Rocío, Egea, Luis G., Procaccini, Gabriele, Terrados, Jorge, and Tomas, Fiona
- Published
- 2020
- Full Text
- View/download PDF
3. Mass flowering and unprecedented extended pseudovivipary in seagrass (Posidonia oceanica) after a Marine Heat Wave
- Author
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Tomas, Fiona, Hernan, Gema, Mañez-Crespo, Julia, Arona, Andrés, Meléndez, Daniela Haverbeck, Reynés, Xesca, Delgado, Jonatan, Procaccini, Gabriele, and Ballesteros, Enric
- Published
- 2024
- Full Text
- View/download PDF
4. Variation in Fish Abundance, Diversity and Assemblage Structure in Seagrass Meadows across the Atlanto-Mediterranean Province
- Author
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Máñez-Crespo, Julia, primary, Tomas, Fiona, additional, Fernández-Torquemada, Yolanda, additional, Royo, Laura, additional, Espino, Fernando, additional, Antich, Laura, additional, Bosch, Néstor E., additional, Castejón, Inés, additional, Hernan, Gema, additional, Marco-Méndez, Candela, additional, Mateo-Ramírez, Ángel, additional, Pereda-Briones, Laura, additional, Del Pilar-Ruso, Yoana, additional, Terrados, Jorge, additional, and Tuya, Fernando, additional
- Published
- 2022
- Full Text
- View/download PDF
5. A Tropical Macroalga (Halimeda incrassata) Enhances Diversity and Abundance of Epifaunal Assemblages in Mediterranean Seagrass Meadows
- Author
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Mateo-Ramírez, Á. (Ángel), Máñez-Crespo, Julia, Royo, Laura, Tuya, Fernando, Castejón-Silvo, Inés, Hernan, Gema, Pereda-Briones, Laura, Terrados, Jorge, Tomas, Fiona, Govern de les Illes Balears, and Ministerio de Economía y Competitividad (España)
- Subjects
Global and Planetary Change ,Cymodocea nodosa ,tropicalization ,food web ,Food web ,Ocean Engineering ,invertebrate assemblages ,Aquatic Science ,Oceanography ,habitat-forming species ,Tropicalization ,Centro Oceanográfico de Málaga ,Invertebrate assemblages ,Habitat-forming species ,Medio Marino ,Water Science and Technology - Abstract
The introduction and successful expansion of tropical species into temperate systems is being exacerbated by climate change, and it is particularly important to identify the impacts that those species may have, especially when habitat-forming species are involved. Seagrass meadows are key shallow coastal habitats that provide critical ecosystem services worldwide, and they are threatened by the arrival of non-native macroalgae. Here, we examined the effects of Halimeda incrassata, a tropical alga that has recently colonized the Mediterranean Sea, on epifaunal assemblages associated with Cymodocea nodosa seagrass meadows of Mallorca Island (Western Mediterranean Sea). This invasive macroalga is an ecological engineer and thus has a high potential of modifying native habitats. A seagrass meadow colonized by H. incrassata exhibited important changes on associated epifaunal assemblages, with an increase in abundance and diversity, particularly driven by higher abundances of Gammaridae, Polychaeta, Copepoda and Caprellidae. Given the key ecological contribution of epifauna to food webs, these alterations will likely have important implications for overall food web structure and ecosystem functioning of native ecosystems., SI
- Published
- 2022
6. A Tropical Macroalga (Halimeda incrassata) Enhances Diversity and Abundance of Epifaunal Assemblages in Mediterranean Seagrass Meadows
- Author
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Mateo-Ramírez, Ángel, Máñez-Crespo, Julia, Royo, Laura, Tuya, Fernando, Castejón-Silvo, Inés, Hernan, Gema, Pereda-Briones, Laura, Terrados, Jorge, Tomas, Fiona, Mateo-Ramírez, Ángel, Máñez-Crespo, Julia, Royo, Laura, Tuya, Fernando, Castejón-Silvo, Inés, Hernan, Gema, Pereda-Briones, Laura, Terrados, Jorge, and Tomas, Fiona
- Abstract
The introduction and successful expansion of tropical species into temperate systems is being exacerbated by climate change, and it is particularly important to identify the impacts that those species may have, especially when habitat-forming species are involved. Seagrass meadows are key shallow coastal habitats that provide critical ecosystem services worldwide, and they are threatened by the arrival of non-native macroalgae. Here, we examined the effects of Halimeda incrassata, a tropical alga that has recently colonized the Mediterranean Sea, on epifaunal assemblages associated with Cymodocea nodosa seagrass meadows of Mallorca Island (Western Mediterranean Sea). This invasive macroalga is an ecological engineer and thus has a high potential of modifying native habitats. A seagrass meadow colonized by H. incrassata exhibited important changes on associated epifaunal assemblages, with an increase in abundance and diversity, particularly driven by higher abundances of Gammaridae, Polychaeta, Copepoda and Caprellidae. Given the key ecological contribution of epifauna to food webs, these alterations will likely have important implications for overall food web structure and ecosystem functioning of native ecosystems.
- Published
- 2022
7. Variation in Fish Abundance, Diversity and Assemblage Structure in Seagrass Meadows across the Atlanto-Mediterranean Province
- Author
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Máñez-Crespo, Julia, Tomas, Fiona, Fernández-Torquemada, Yolanda, Royo, Laura, Espino, Fernando, Antich, Laura, Bosch, Néstor E., Castejón, Gema, Marco-Méndez, Candela, Mateo-Ramírez, Ángel, Pereda-Briones, Laura, Del Pilar-Ruso, Yoana, Terrados, Jorge, Tuya, Fernando, Máñez-Crespo, Julia, Tomas, Fiona, Fernández-Torquemada, Yolanda, Royo, Laura, Espino, Fernando, Antich, Laura, Bosch, Néstor E., Castejón, Gema, Marco-Méndez, Candela, Mateo-Ramírez, Ángel, Pereda-Briones, Laura, Del Pilar-Ruso, Yoana, Terrados, Jorge, and Tuya, Fernando
- Abstract
Seagrasses worldwide provide key habitats for fish assemblages. Biogeographical disparities in ocean climate conditions and seasonal regimes are well-known drivers of the spatial and temporal variation in seagrass structure, with potential effects on associated fish assemblages. Whether taxonomically disparate fish assemblages support a similar range of ecological functions remains poorly tested in seagrass ecosystems. In this study, we examined variation in the abundance, diversity (from a taxonomic and functional perspective), and assemblage structure of fish community inhabiting nine meadows of the seagrass Cymodocea nodosa across three regions in the Mediterranean (Mallorca and Alicante) and the adjacent Atlantic (Gran Canaria), and identified which attributes typifying the structure of meadows, and large-scale variability in ocean climate, contributed most to explaining such ecological variation. Despite a similar total number of species between Mallorca and Gran Canaria, the latter region had more taxonomically and functionally diverse fish assemblages relative to the western Mediterranean regions, which translated into differences in multivariate assemblage structure. While variation in the abundance of the most conspicuous fish species was largely explained by variation in seagrass structural descriptors, most variation in diversity was accounted for by a descriptor of ocean climate (mean seasonal SST), operating at regional scales. Variation in fish assemblage structure was, to a lesser extent, also explained by local variability in seagrass structure. Beyond climatic drivers, our results suggest that lower temporal variability in the canopy structure of C. nodosa meadows in Gran Canaria provides a more consistent source of food and protection for associated fish assemblages, which likely enhances the more abundant and diverse fish assemblages there
- Published
- 2022
8. Image_1_A Tropical Macroalga (Halimeda incrassata) Enhances Diversity and Abundance of Epifaunal Assemblages in Mediterranean Seagrass Meadows.tif
- Author
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Mateo, Miguel Ángel, Máñez-Crespo, Julia, Royo, Laura, Tuya, Fernando, Castejón-Silvo, Inés, Hernán, Gema, Pereda-Briones, Laura, Terrados, Jorge, Tomàs, Fiona, Mateo, Miguel Ángel, Máñez-Crespo, Julia, Royo, Laura, Tuya, Fernando, Castejón-Silvo, Inés, Hernán, Gema, Pereda-Briones, Laura, Terrados, Jorge, and Tomàs, Fiona
- Abstract
The introduction and successful expansion of tropical species into temperate systems is being exacerbated by climate change, and it is particularly important to identify the impacts that those species may have, especially when habitat-forming species are involved. Seagrass meadows are key shallow coastal habitats that provide critical ecosystem services worldwide, and they are threatened by the arrival of non-native macroalgae. Here, we examined the effects of Halimeda incrassata, a tropical alga that has recently colonized the Mediterranean Sea, on epifaunal assemblages associated with Cymodocea nodosa seagrass meadows of Mallorca Island (Western Mediterranean Sea). This invasive macroalga is an ecological engineer and thus has a high potential of modifying native habitats. A seagrass meadow colonized by H. incrassata exhibited important changes on associated epifaunal assemblages, with an increase in abundance and diversity, particularly driven by higher abundances of Gammaridae, Polychaeta, Copepoda and Caprellidae. Given the key ecological contribution of epifauna to food webs, these alterations will likely have important implications for overall food web structure and ecosystem functioning of native ecosystems.
- Published
- 2022
9. Variation in Fish Abundance, Diversity and Assemblage Structure in Seagrass Meadows across the Atlanto-Mediterranean Province
- Author
-
Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada, Máñez-Crespo, Julia, Tomas, Fiona, Fernández-Torquemada, Yolanda, Royo, Laura, Espino, Fernando, Antich, Laura, Bosch, Néstor E., Castejón, Inés, Hernan, Gema, Marco-Méndez, Candela, Mateo-Ramírez, Ángel, Pereda-Briones, Laura, Del-Pilar-Ruso, Yoana, Terrados, Jorge, Tuya, Fernando, Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada, Máñez-Crespo, Julia, Tomas, Fiona, Fernández-Torquemada, Yolanda, Royo, Laura, Espino, Fernando, Antich, Laura, Bosch, Néstor E., Castejón, Inés, Hernan, Gema, Marco-Méndez, Candela, Mateo-Ramírez, Ángel, Pereda-Briones, Laura, Del-Pilar-Ruso, Yoana, Terrados, Jorge, and Tuya, Fernando
- Abstract
Seagrasses worldwide provide key habitats for fish assemblages. Biogeographical disparities in ocean climate conditions and seasonal regimes are well-known drivers of the spatial and temporal variation in seagrass structure, with potential effects on associated fish assemblages. Whether taxonomically disparate fish assemblages support a similar range of ecological functions remains poorly tested in seagrass ecosystems. In this study, we examined variation in the abundance, diversity (from a taxonomic and functional perspective), and assemblage structure of fish community inhabiting nine meadows of the seagrass Cymodocea nodosa across three regions in the Mediterranean (Mallorca and Alicante) and the adjacent Atlantic (Gran Canaria), and identified which attributes typifying the structure of meadows, and large-scale variability in ocean climate, contributed most to explaining such ecological variation. Despite a similar total number of species between Mallorca and Gran Canaria, the latter region had more taxonomically and functionally diverse fish assemblages relative to the western Mediterranean regions, which translated into differences in multivariate assemblage structure. While variation in the abundance of the most conspicuous fish species was largely explained by variation in seagrass structural descriptors, most variation in diversity was accounted for by a descriptor of ocean climate (mean seasonal SST), operating at regional scales. Variation in fish assemblage structure was, to a lesser extent, also explained by local variability in seagrass structure. Beyond climatic drivers, our results suggest that lower temporal variability in the canopy structure of C. nodosa meadows in Gran Canaria provides a more consistent source of food and protection for associated fish assemblages, which likely enhances the more abundant and diverse fish assemblages there.
- Published
- 2022
10. A Tropical Macroalga (Halimeda incrassata) Enhances Diversity and Abundance of Epifaunal Assemblages in Mediterranean Seagrass Meadows
- Author
-
Govern de les Illes Balears, Ministerio de Economía y Competitividad (España), Mateo, Miguel Ángel, Máñez-Crespo, Julia, Royo, Laura, Tuya, Fernando, Castejón-Silvo, Inés, Hernán, Gema, Pereda-Briones, Laura, Terrados, Jorge, Tomàs, Fiona, Govern de les Illes Balears, Ministerio de Economía y Competitividad (España), Mateo, Miguel Ángel, Máñez-Crespo, Julia, Royo, Laura, Tuya, Fernando, Castejón-Silvo, Inés, Hernán, Gema, Pereda-Briones, Laura, Terrados, Jorge, and Tomàs, Fiona
- Abstract
The introduction and successful expansion of tropical species into temperate systems is being exacerbated by climate change, and it is particularly important to identify the impacts that those species may have, especially when habitat-forming species are involved. Seagrass meadows are key shallow coastal habitats that provide critical ecosystem services worldwide, and they are threatened by the arrival of non-native macroalgae. Here, we examined the effects of Halimeda incrassata, a tropical alga that has recently colonized the Mediterranean Sea, on epifaunal assemblages associated with Cymodocea nodosa seagrass meadows of Mallorca Island (Western Mediterranean Sea). This invasive macroalga is an ecological engineer and thus has a high potential of modifying native habitats. A seagrass meadow colonized by H. incrassata exhibited important changes on associated epifaunal assemblages, with an increase in abundance and diversity, particularly driven by higher abundances of Gammaridae, Polychaeta, Copepoda and Caprellidae. Given the key ecological contribution of epifauna to food webs, these alterations will likely have important implications for overall food web structure and ecosystem functioning of native ecosystems.
- Published
- 2022
11. Partitioning resilience of a marine foundation species into resistance and recovery trajectories
- Author
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Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada, Tuya, Fernando, Fernández-Torquemada, Yolanda, Del-Pilar-Ruso, Yoana, Espino, Fernando, Manent, Pablo, Curbelo, Leticia, Otero-Ferrer, Francisco, de-la-Ossa-Carretero, Jose Antonio, Royo, Laura, Antich, Laura, Castejón, Inés, Máñez-Crespo, Julia, Mateo-Ramírez, Ángel, Procaccini, Gabriele, Marco-Méndez, Candela, Terrados, Jorge, Tomas, Fiona, Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada, Tuya, Fernando, Fernández-Torquemada, Yolanda, Del-Pilar-Ruso, Yoana, Espino, Fernando, Manent, Pablo, Curbelo, Leticia, Otero-Ferrer, Francisco, de-la-Ossa-Carretero, Jose Antonio, Royo, Laura, Antich, Laura, Castejón, Inés, Máñez-Crespo, Julia, Mateo-Ramírez, Ángel, Procaccini, Gabriele, Marco-Méndez, Candela, Terrados, Jorge, and Tomas, Fiona
- Abstract
The resilience of an ecological unit encompasses resistance during adverse conditions and the capacity to recover. We adopted a ‘resistance-recovery’ framework to experimentally partition the resilience of a foundation species (the seagrass Cymodocea nodosa). The shoot abundances of nine seagrass meadows were followed before, during and after simulated light reduction conditions. We determined the significance of ecological, environmental and genetic drivers on seagrass resistance (% of shoots retained during the light deprivation treatments) and recovery (duration from the end of the perturbed state back to initial conditions). To identify whether seagrass recovery was linearly related to prior resistance, we then established the connection between trajectories of resistance and recovery. Finally, we assessed whether recovery patterns were affected by biological drivers (production of sexual products—seeds—and asexual propagation) at the meadow-scale. Resistance to shading significantly increased with the genetic diversity of the meadow and seagrass recovery was conditioned by initial resistance during shading. A threshold in resistance (here, at a ca. 70% of shoot abundances retained during the light deprivation treatments) denoted a critical point that considerably delays seagrass recovery if overpassed. Seed densities, but not rhizome elongation rates, were higher in meadows that exhibited large resistance and quick recovery, which correlated positively with meadow genetic diversity. Our results highlight the critical role of resistance to a disturbance for persistence of a marine foundation species. Estimation of critical trade-offs between seagrass resistance and recovery is a promising field of research to better manage impacts on seagrass meadows.
- Published
- 2021
12. Seagrass Cymodocea nodosa across biogeographical regions and times: Differences in abundance, meadow structure and sexual reproduction
- Author
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Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada, Máñez-Crespo, Julia, Tuya, Fernando, Fernández-Torquemada, Yolanda, Royo, Laura, Del-Pilar-Ruso, Yoana, Espino, Fernando, Manent, Pablo, Antich, Laura, Castejón, Inés, Curbelo, Leticia, de-la-Ossa-Carretero, Jose Antonio, Hernan, Gema, Mateo-Ramírez, Ángel, Pereda-Briones, Laura, Jiménez-Ramos, Rocío, Egea, Luis G., Procaccini, Gabriele, Terrados, Jorge, Tomas, Fiona, Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada, Máñez-Crespo, Julia, Tuya, Fernando, Fernández-Torquemada, Yolanda, Royo, Laura, Del-Pilar-Ruso, Yoana, Espino, Fernando, Manent, Pablo, Antich, Laura, Castejón, Inés, Curbelo, Leticia, de-la-Ossa-Carretero, Jose Antonio, Hernan, Gema, Mateo-Ramírez, Ángel, Pereda-Briones, Laura, Jiménez-Ramos, Rocío, Egea, Luis G., Procaccini, Gabriele, Terrados, Jorge, and Tomas, Fiona
- Abstract
Seagrasses are key habitat-forming species of coastal areas. While previous research has demonstrated considerable small-scale variation in seagrass abundance and structure, studies teasing apart local from large-scale variation are scarce. We determined how different biogeographic scenarios, under varying environmental and genetic variation, explained variation in the abundance and structure (morphology and biomass allocation), epiphytes and sexual reproduction intensity of the seagrass Cymodocea nodosa. Regional and local-scale variation, including their temporal variability, contributed to differentially explain variation in seagrass attributes. Structural, in particular morphological, attributes of the seagrass leaf canopy, most evidenced regional seasonal variation. Allocation to belowground tissues was, however, mainly driven by local-scale variation. High seed densities were observed in meadows of large genetic diversity, indicative of sexual success, which likely resulted from the different evolutionary histories undergone by the seagrass at each region. Our results highlight that phenotypic plasticity to local and regional environments need to be considered to better manage and preserve seagrass meadows.
- Published
- 2020
13. Seagrass Cymodocea nodosa across biogeographical regions and times: Differences in abundance, meadow structure and sexual reproduction
- Author
-
Universidad de Los Lagos, Ministerio de Economía y Competitividad (España), Máñez-Crespo, Julia, Tuya, Fernando, Fernández-Torquemada, Yolanda, Royo, Laura, Pilar-Ruso, Yoana del, Espino, Fernando, Manent, Pablo, Antich, Laura, Castejón-Silvo, Inés, Curbelo, Leticia, Ossa, José A. de la, Hernán, Gema, Mateo, Miguel Ángel, Pereda-Briones, Laura, Jiménez-Ramos, Rocío, Egea, Luis G., Procaccini, Gabriele, Terrados, Jorge, Tomàs, Fiona, Universidad de Los Lagos, Ministerio de Economía y Competitividad (España), Máñez-Crespo, Julia, Tuya, Fernando, Fernández-Torquemada, Yolanda, Royo, Laura, Pilar-Ruso, Yoana del, Espino, Fernando, Manent, Pablo, Antich, Laura, Castejón-Silvo, Inés, Curbelo, Leticia, Ossa, José A. de la, Hernán, Gema, Mateo, Miguel Ángel, Pereda-Briones, Laura, Jiménez-Ramos, Rocío, Egea, Luis G., Procaccini, Gabriele, Terrados, Jorge, and Tomàs, Fiona
- Abstract
Seagrasses are key habitat-forming species of coastal areas. While previous research has demonstrated considerable small-scale variation in seagrass abundance and structure, studies teasing apart local from large-scale variation are scarce. We determined how different biogeographic scenarios, under varying environmental and genetic variation, explained variation in the abundance and structure (morphology and biomass allocation), epiphytes and sexual reproduction intensity of the seagrass Cymodocea nodosa. Regional and local-scale variation, including their temporal variability, contributed to differentially explain variation in seagrass attributes. Structural, in particular morphological, attributes of the seagrass leaf canopy, most evidenced regional seasonal variation. Allocation to belowground tissues was, however, mainly driven by local-scale variation. High seed densities were observed in meadows of large genetic diversity, indicative of sexual success, which likely resulted from the different evolutionary histories undergone by the seagrass at each region. Our results highlight that phenotypic plasticity to local and regional environments need to be considered to better manage and preserve seagrass meadows.
- Published
- 2020
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