Does beach nourishment have long-term effects on intertidal macroinvertebrate species abundance?

Leewis, L.; Bodegom, Peter M. van; Rozema, J.; Janssen, G.M.

doi:10.1016/j.ecss.2012.07.021

Cited by 55 publications

(38 citation statements)

References 47 publications

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“…Only one, the spionid polychaete Scolelepis squamata, an opportunist that has been observed to 'over-colonise' following nourishment (Leewis et al 2012), exhibited a positive response to spoil disposal: impacts detected for each of the other 5 species were negative. Examination of whether the disposal event preceded or succeeded the major period of seasonal recruitment provides insight into the likely mechanisms of impact and simultaneously implies management guidance on how to minimize negative effects.…”

Section: Mechanisms Of Disposal Effects On Macrobenthic Infaunamentioning

confidence: 99%

“…In laboratory experiments, however, this broadly distributed opportunistic polychaete (Leewis et al 2012) displayed a preference for medium to fine sediment but also occupied coarse sediments (Van Tomme et al 2013). However, the disposal events at Topsail Island succeeded the initiation of S. squamata recruitment in both sampling years, although substantial recruitment also continued for months after the disposal process ended.…”

Section: Mechanisms Of Disposal Effects On Macrobenthic Infaunamentioning

confidence: 99%

See 1 more Smart Citation

Dominant macrobenthic populations experience sustained impacts from annual disposal of fine sediments on sandy beaches

Manning¹,

Peterson²,

Bishop³

2014

Mar. Ecol. Prog. Ser.

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Section: Mechanisms Of Disposal Effects On Macrobenthic Infaunamentioning

confidence: 99%

Section: Mechanisms Of Disposal Effects On Macrobenthic Infaunamentioning

confidence: 99%

Dominant macrobenthic populations experience sustained impacts from annual disposal of fine sediments on sandy beaches

Manning¹,

Peterson²,

Bishop³

2014

Mar. Ecol. Prog. Ser.

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“…This study showed that the use of geosynthetic containers in coastal defence, even though less impacting than building seawalls or groynes, has some long-term effects making these interventions not fully comparable to soft-engineering procedures, generating short-term pulse disturbance (Leewis et al, 2012;Peterson et al, 2006). In this case, the main issue seems to have been the partial removal of the sandy coverage after the dune-recovery, preventing the beach animals to burrow into the sand.…”

Section: Discussionmentioning

confidence: 98%

Macrofaunal community abundance and diversity and talitrid orientation as potential indicators of ecological long-term effects of a sand-dune recovery intervention

Nourisson

Bessa

Scapini

et al. 2014

Ecological Indicators

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a b s t r a c tIn the last decades the increasing urban development on coastal areas have produced extensive modifications on shores all over the world, making critical the active management of pressures on sandy beaches. The use of engineering solutions to counteract beach erosion has been significantly increasing; the ecological indicators used to monitor these interventions generally focus on short-and medium-term effects, while little is known on their effectiveness on long-term temporal scales. The following ecological indicators have been tested in the present study: (a) macrofaunal community abundance and diversity and (b) orientation behaviour of Talitrus saltator, a talitrid amphipod widespread on Mediterranean and European Atlantic sandy beaches. Two sites were considered on a sandy beach of the Portuguese Atlantic coast, one located in front of a natural dune and the other at about 500 m of distance, where the dune had been rebuilt between 2000 and 2008 using geotextile tubes. In 2011 and 2012, macrofauna sampling and orientation experiments on T. saltator were performed at both sites in spring and autumn; contemporaneously the main environmental variables were registered. Macrofaunal data were analysed through multivariate statistical tests, and for the orientation distributions the circular statistics were calculated and multivariate analyses for angular data were performed. Geotextiles appeared to be successful in stabilising the recovered dunes; accordingly, the diversity of the macrofaunal communities and the orientation performances of T. saltator showed no differences between the altered and control sites. Significant reductions were nevertheless observed in the artificial-dune site regarding the abundance of T. saltator and, to a lesser extent, macrofaunal densities, likely ascribable to the presence of geotextiles instead of a vegetated natural dune, preventing invertebrates to burrow into the sand. These results, complementing a more comprehensive study on these two sites, indicate the abundance of T. saltator as the best indicator to follow long-term effects of this kind of soft-engineering intervention. The use of this bioindicator may be recommended for the late phases of monitoring procedures in dune-recovery processes.

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“…However, gastropods, bivalves, and polychaetes were consistently identified in cores, regardless of burial treatment or length of time, suggesting that these taxa in particular possess mechanisms to deal with sedimentation events. These mechanisms are likely species-specific (as shown in, e.g., Defeo et al 1997, Leewis et al 2012 Hay que reconocer que las parcelas control que aún permanecían para el día 54 ya no servían como verdaderos controles por el depósito inesperado de sedimento. No obstante, aprovechamos el hecho que dos de las parcelas sometidas a enterramiento intensivo aún permanecían para el día 54 y se compararon, mediante pruebas t por pares, entre los días 5 y 54 para entender mejor los efectos del enterramiento.…”

Section: Discussionunclassified

“…Previous reports have found significant impacts of burial on these macrofaunal metrics (e.g., Peterson et al 2000, Menn et al 2003, but others have not. For example, Gorzelany and Nelson (1987) did not find a significant impact on abundance or richness of benthic fauna in response to burial from beach nourishment on the east coast of Florida, and Leewis et al (2012) found no long-term negative effects of beach nourishment on the abundance of four dominant species of beach macrofauna in the Netherlands. In our study the statistical power for the analyses of abundance and diversity is low, and it is likely that we have not detected significant burial impacts on these metrics due to limited sample size.…”

Section: Live Richnessmentioning

confidence: 99%

Evidence of short-term burial response by benthic macrofauna associated with the Mediterranean seagrass Cymodocea nodosa

et al. 2015

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ABSTRACT. Sedimentation and burial affect a variety of habitats worldwide, especially within coastal marine systems. In the Mediterranean, seagrasses like Cymodocea nodosa are commonly subjected to sedimentation and, although the response of C. nodosa has been documented, few studies have included macrofaunal responses. We used a manipulative field experiment to examine the effects of a single small-scale, pulse burial event on benthic invertebrate macrofauna. Burial did not affect the total abundance, richness, or diversity of higher taxa nor the live abundance or diversity after 5 days. However, live higher taxa richness decreased by day 3. After 5 days, such decrease reversed and partial recovery seemed to occur. Almost 2 months later, three of the buried plots remained with some additional sedimentation, but the other three had lost their sediment. We compared faunal metrics of buried plots between days 5 and 54 and found greater diversity on day 54, providing evidence that macrofaunal recovery apparent 5 days after burial seemed to persist. Although we likely underestimated the effects and can only be conservative with our conclusions, taken together our results suggest small-scale, pulse burial events can have some negative effects on the C. nodosa-associated benthic macrofaunal community, but the community can recover within a few weeks.Key words: benthic macrofauna, Cymodocea nodosa, Mediterranean Sea, recovery, sediment. RESUMEN.La sedimentación y el enterramiento afectan a una gran variedad de hábitats en todo el mundo, especialmente en los sistemas costeros marinos. En el Mediterráneo, las fanerógamas marinas como Cymodocea nodosa suelen estar expuestas a la sedimentación y, a pesar de que la respuesta de C. nodosa ha sido documentada previamente, muy pocos estudios hacen referencia a cómo responde la macrofauna. Se ha usado un experimento manipulativo en el campo para examinar los efectos de un enterramiento súbito y puntual a pequeña escala sobre la fauna de invertebrados macrobentónicos. El enterramiento no afectó a la abundancia total, riqueza o diversidad de especies, ni tampoco a la abundancia o diversidad de individuos vivos 5 días después del enterramiento. Sin embargo, la riqueza de taxones vivos disminuyó a partir del día 3. Pasados 5 días, esa disminución revirtió y parece tener lugar una recuperación parcial. Casi 2 meses después, tres de las parcelas enterradas todavía presentaron algún tipo de sedimentación adicional, pero las otras tres habían perdido el sedimento. Se compararon las métricas de la fauna encontrada en los días 5 y 54 en las parcelas enterradas, y se encontró una alta diversidad para el día 54, evidenciando que la aparente recuperación que tuvo lugar 5 días después del enterramiento parece persistir. A pesar de que probablemente hemos subestimado los efectos y debemos ser conservadores con nuestras conclusiones, al examinar los resultados conjuntamente, sugieren que estos eventos repentinos y puntuales de enterramiento a pequeña escala pueden tener efectos negativos sobre...

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Does beach nourishment have long-term effects on intertidal macroinvertebrate species abundance?

Cited by 55 publications

References 47 publications

Dominant macrobenthic populations experience sustained impacts from annual disposal of fine sediments on sandy beaches

Dominant macrobenthic populations experience sustained impacts from annual disposal of fine sediments on sandy beaches

Macrofaunal community abundance and diversity and talitrid orientation as potential indicators of ecological long-term effects of a sand-dune recovery intervention

Evidence of short-term burial response by benthic macrofauna associated with the Mediterranean seagrass Cymodocea nodosa

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