Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.1/4073
Título: Extending the life history of a clonal aquatic plant: dispersal potential of sexual and asexual propagules of Zostera noltii
Autor: Berkovic, B.
Cabaço, S.
Barrio, Juan M.
Santos, Rui
Serrão, Ester
Alberto, F.
Palavras-chave: Dispersal
Propagules
Seagrass connectivity
Zostera noltii
Seeds
Fragments
Data: 2014
Editora: Elsevier
Citação: Berkovic, B.; Cabaço, S.; Barrio, J.M.; Santos, R.; Serrão, E.A.; Alberto, F. Extending the life history of a clonal aquatic plant: Dispersal potential of sexual and asexual propagules of Zostera noltii, Aquatic Botany, 113, 2014, 123-129, 2014.
Resumo: The dispersal potential of sexual and asexual propagules of Zostera noltii was experimentally quantified in still water and under different currents in microcosm and mesocosm facilities. We estimated sinking rates of seeds and changes over time in shoot buoyancy, shoot viability, fragment breakage, shoot growth rate and spathe release rate of floating fragments. The fast sinking rates of detached Z. noltii seeds suggest a small spatial scale of dispersal insufficient to connect fragmented populations, whereas the traits of floating fragments, particularly shoot buoyancy and shoot survival (>55 d), suggest a potential for long distance dispersal (>2300 km) that could connect distant patches and allow colonization of new areas. We showed that the Z. noltii vegetative and reproductive fragments have the potential to extend the dispersal achieved by detached seeds alone.
Peer review: yes
URI: http://hdl.handle.net/10400.1/4073
DOI: http://dx.doi.org/10.1016/j.aquabot.2013.10.007
ISSN: 0304-3770
Aparece nas colecções:CCM2-Artigos (em revistas ou actas indexadas)



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