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Why ecologists would recommend the use of beach grass along the coastline? 

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Sand supply is an effective method of coastline maintenance, which also serves functional uses in the beach and dune area.
The ecological value of the beaches is at risk, caused by an extensive use of mechanical beach cleaners.
Most importantly, the paper demonstrates that beach-profile measurement, theory and analysis can provide information of practical use in coastal management.
Results indicate that values for beach use among the locals differ depending on their visit patterns.
The better economic performance of the plant with beach well intake was mostly due to savings in chemical use.
Through field trials and adaptive management principles, ecologists could now develop beach nourishment into a management tool to rebuild lost habitat, restore the sand deficit, and stockpile additional sand before nonessential channels and harbors are allowed to refill.
We identify several human pressures on the beach ecosystems arising from recreation, beach management and fisheries.
Little impact on beach macroinvertebrates would be expected from this usage pattern.
This loss in sea grass area will lead to a reduction of carbonate sediment production and consequently the increased likelihood of beach erosion.
This would ideally enhance the relevance of both research on beached plastics and sandy beach biota, so far running along parallel paths.
Thus, beach grooming seems to be having a major effect on the biodiversity of beach macroinvertebrates in Scotland.
The effect of shoreline type may be related to the distribution of macrophyte biomass; the biomasses of eelgrass and macroalgae were significantly higher along beach and marsh shorelines, respectively.
Thus the results of this study suggest the use of certain species as indicators of human impacts on beach ecosystems.
Increased beach access results in a loss of typical beach plant species.
This shows the importance of knowing the autecology of the sandy beach macroinvertebrate fauna in order to be able to mitigate the effects of beach nourishment and other environmental impacts.
A species-specific biophysical feedback occurs between sand deposition and beach grass growth habit, resulting in distinctly different dune geomorphologies in locations dominated by these different grass species.
For that, it is necessary to consider beach typology along with the seasonal influx of visitors to define the most appropriate management actions, not forgetting the implementation of environmental education, essential in schools and media.
The map is useful for beach management purposes.
We found that sand supply influenced intra- vs. interspecific interactions, the strength of positive and indirect effects among beach grasses and the long-term abundances of the beach grass species themselves.

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