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Title: | Seagrass Cymodocea nodosa across biogeographical regions and times: Differences in abundance, meadow structure and sexual reproduction | Authors: | Máñez-Crespo, Julia Tuya, Fernando Fernandez Torquemada,Yolanda Royo, Laura Pilar-Ruso, Yoana del Espino Rodríguez, 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 Tomas, Fiona |
UNESCO Clasification: | 250501-1 Biogeografía botánica 241705 Biología marina |
Keywords: | Angiosperms Canary Islands Demographic Compensation Hypothesis Environmental Variability Meadow Genetic Diversity, et al |
Issue Date: | 2020 | Project: | Compresion Holistica Del Funcionamiento y Resilencia de Una Fanerogama Marina A Perturbaciones Locales: de Escalas Moleculares A Escalas | Journal: | Marine Environmental Research | 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. | URI: | http://hdl.handle.net/10553/74642 | ISSN: | 0141-1136 | DOI: | 10.1016/j.marenvres.2020.105159 | Source: | Marine Environmental Research [ISSN 0141-1136], v. 162, 105159, (Diciembre 2020) |
Appears in Collections: | Artículos |
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