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Rapid recovery of native habitat-builders following physical disturbance on pier pilings offsets colonization of cryptogenic and non-indigenous species in a Chilean port
- Source :
- Marine Environmental Research, Marine Environmental Research, Elsevier science, 2021, 163, ⟨10.1016/j.marenvres.2020.105231⟩, Marine Environmental Research, 2021, 163, ⟨10.1016/j.marenvres.2020.105231⟩
- Publication Year :
- 2021
- Publisher :
- HAL CCSD, 2021.
-
Abstract
- International audience; Examining the effects of disturbances within marine urban communities can shed light on their assembly rules and invasion processes. The effects of physical disturbance, through the removal of dominant native habitatbuilders, were investigated in the recolonization of disturbed patches and colonization of plates on pier pilings, in a Chilean port. On pilings, disturbance substantially affected community structure after 3 months, although it slowly converged across treatments after 10 months. On plates, cryptogenic and non-indigenous species richness increased with removal severity, which was not observed in natives. Opportunistic taxa took advantage of colonizing at an early successional stage, illustrating a competition-colonization trade-off, although indirect effects might be at play (e.g. trophic competition or selective predation). Recovery of the habitatbuilders then occurred at the expense of cryptogenic and non-indigenous taxa. Whether natives could continue winning against increasing propagule and colonization pressures in marine urban habitats deserves further attention. The interactions between disturbance and biological invasions herein experimentally shown in situ contribute to our understanding of multiple changes imposed by marine urbanization in a growing propagule transport network.
- Subjects :
- 0106 biological sciences
Assembly rules
Biofouling
media_common.quotation_subject
[SDE.MCG]Environmental Sciences/Global Changes
Ecological succession
Aquatic Science
Biology
Oceanography
010603 evolutionary biology
01 natural sciences
Competition (biology)
[SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems
Propagule
Colonization
14. Life underwater
Chile
SE Pacific
Succession
Ecosystem
media_common
Artificial structures
Sessile invertebrates
Ecology
010604 marine biology & hydrobiology
Urbanization
Invasions
General Medicine
15. Life on land
Pollution
Urban ecology
Habitat
Disturbance (ecology)
Cosmopolitanism
Species richness
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Subjects
Details
- Language :
- English
- ISSN :
- 01411136 and 18790291
- Database :
- OpenAIRE
- Journal :
- Marine Environmental Research, Marine Environmental Research, Elsevier science, 2021, 163, ⟨10.1016/j.marenvres.2020.105231⟩, Marine Environmental Research, 2021, 163, ⟨10.1016/j.marenvres.2020.105231⟩
- Accession number :
- edsair.doi.dedup.....f05deaacb3560db18ce556b8c97e3762