Getting into the groove: Opportunities to enhance the ecological value of hard coastal infrastructure using fine-scale surface textures

Emanuela Claudia La Marca, Larissa A. Naylor, Richard C. Thompson, Martin A. Coombes

Risultato della ricerca: Article

47 Citazioni (Scopus)

Abstract

Concrete flood defences, erosion control structures, port and harbour facilities, and renewable energy infrastructure are increasingly being built in the world's coastal regions. There is, however, strong evidence to suggest that these structures are poor surrogates for natural rocky shores, often supporting assemblages with lower species abundance and diversity. Ecological engineering opportunities to enhance structures for biodiversity conservation (and other management goals) are therefore being sought, but the majority of work so far has concentrated on structural design features at the centimetre-meter scale.We deployed concrete tiles with four easily-reproducible fine-scale (millimetre) textures (control, smoothed, grooved and exposed aggregate) in the intertidal zone to test opportunities for facilitating colonisation by a dominant ecosystem engineer (barnacles) relative to natural rock. Concrete texture had a significant effect on colonisation; smoothed tiles supported significantly fewer numbers of barnacles, and those with intermediate roughness (grooved concrete) significantly greater numbers, after one settlement season.The successful recruitment of early colonists is a critical stage in the development of more complex and diverse macrobenthic assemblages, especially those that provide physical habitat structure for other species. Our observations show that this can be facilitated relatively simply for barnacles on marine concrete by manipulating surface heterogeneity at a millimetre scale. Alongside other larger-scale manipulation (e.g. creating holes and pools), including fine-scale habitat heterogeneity in engineering designs can support international efforts to maximise the ecological value of marine urban infrastructure.
Lingua originaleEnglish
pagine (da-a)314-323
Numero di pagine10
RivistaEcological Engineering
Volume77
Stato di pubblicazionePublished - 2015

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Textures
texture
infrastructure
Concretes
Tile
colonization
ecological engineering
rocky shore
habitat structure
erosion control
intertidal environment
Biodiversity
roughness
Ports and harbors
harbor
Structural design
Ecosystems
biodiversity
Erosion
Conservation

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Management, Monitoring, Policy and Law
  • Nature and Landscape Conservation

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Getting into the groove: Opportunities to enhance the ecological value of hard coastal infrastructure using fine-scale surface textures. / La Marca, Emanuela Claudia; Naylor, Larissa A.; Thompson, Richard C.; Coombes, Martin A.

In: Ecological Engineering, Vol. 77, 2015, pag. 314-323.

Risultato della ricerca: Article

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