, Volume 834, Issue 1, pp 63–74 | Cite as

Role of sediment structuring by detritus on colonization and interspecific competition of one native and one invasive submerged macrophyte

  • Mário Sérgio Dainez-FilhoEmail author
  • Thaísa Sala Michelan
  • Nayara Louback-Franco
  • Douglas Costa Souza
  • Emanuel Giovani Cafofo
  • Sidinei Magela Thomaz
Primary Research Paper


The deposition of plant detritus changes sediment features, but little is known about how the accumulation of detritus affects the colonization of invasive and native submerged macrophytes. We tested the predictions that (i) submerged macrophyte occurrences correlate positively with the presence of detritus over sediment; (ii) the colonization of submerged macrophytes increases in the presence of detritus; (iii) the invasive macrophyte Hydrilla verticillata grows faster than the native macrophyte Egeria najas independent of the presence of detritus and (iv) E. najas is affected by competition with H. verticillata, and competition is mediated by the presence of detritus. We evaluated the co-occurrences of submerged macrophytes and detritus in situ and experimentally tested the effects of detritus on submerged macrophyte growth with and without competition. The presence of submerged macrophytes and detritus was negatively correlated in situ. Our experiments indicate that the detritus of emergent macrophytes, including invasive macrophytes, enhances nutrients after reflooding and increases the early growth of submerged macrophytes but does not influence the outcome of competition. Thus, the facilitation of invasive success at the beginning of detritus decomposition (indicated by our experiments) may be counteracted by negative effects after a long decomposition period (indicated by our field data).


Extreme events Facilitation Invasibility Urochloa arrecta 



M.S. Dainez-Filho and T.S. Michelan acknowledge the National Council for Scientific and Technological Development (CNPq) for providing scholarships. S. M. Thomaz is especially thankful to CNPq for continuous funding through a Research Productivity Grant. This research was funded by Itaipu Binacional and the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES/Proex), an organization of the Brazilian Government. We also appreciate the comments and suggestions of Associate Editor Katya Kovalenko and two anonymous referees.

Supplementary material

10750_2019_3909_MOESM1_ESM.docx (1.6 mb)
Supplementary material 1 (DOCX 1587 kb)


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Mário Sérgio Dainez-Filho
    • 1
    Email author
  • Thaísa Sala Michelan
    • 2
  • Nayara Louback-Franco
    • 1
  • Douglas Costa Souza
    • 1
  • Emanuel Giovani Cafofo
    • 1
  • Sidinei Magela Thomaz
    • 1
  1. 1.Universidade Estadual de MaringáMaringáBrazil
  2. 2.Laboratório de Ecologia e ConservaçãoUniversidade Federal do Pará, Instituto de Ciências BiológicasBelémBrazil

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