2014
DOI: 10.1590/1676-06032014006914
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A review on macrobenthic trophic relationships along subtropical sandy shores in southernmost Brazil

Abstract: PINOTTI, R.M., MINASI, D.M., COLLING, L.A., BEMVENUTI, C.E. A review on macrobenthic trophic relationships along subtropical sandy shores in southernmost Brazil.http://dx.doi.org/10.1590/1676-06032014006914Abstract: Main trophic relationships that occur along the exposed sandy shores in southernmost Brazil (,336 S) are established taking into account several biological compartments operating at morphodynamically distinct environments. Beaches are predominantly of the intermediate type but some stretches of coa… Show more

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Cited by 19 publications
(18 citation statements)
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References 59 publications
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“…Better documentation of ghost crab behavior and accessibility to resources, including the consumer’s ability to forage in strong wave surge, fine or densely-packed sediments and macrophyte wrack is desirable; such information will improve our working model and help evaluate the assumption that ghost crabs have access to all food resources on every beach. Additionally, investigations of ghost crab feeding in response to the presence of their own native (herons, gulls, raccoons) and introduced predators (foxes, feral cats, dogs) as well as competitors (plovers, sandpipers, and turnstones) may be informative [ 11 , 31 , 43 , 85 , 86 , 90 ] and may help explain the strong patterns of highest ghost crab density being recorded on beaches of intermediate width reported here. However, despite these limitations, our study provides new details on diets and trophic position given our use of longer-term, integrated measures of ghost crab diets (stable isotopes) and a dynamic food web approach.…”
Section: Discussionmentioning
confidence: 87%
See 1 more Smart Citation
“…Better documentation of ghost crab behavior and accessibility to resources, including the consumer’s ability to forage in strong wave surge, fine or densely-packed sediments and macrophyte wrack is desirable; such information will improve our working model and help evaluate the assumption that ghost crabs have access to all food resources on every beach. Additionally, investigations of ghost crab feeding in response to the presence of their own native (herons, gulls, raccoons) and introduced predators (foxes, feral cats, dogs) as well as competitors (plovers, sandpipers, and turnstones) may be informative [ 11 , 31 , 43 , 85 , 86 , 90 ] and may help explain the strong patterns of highest ghost crab density being recorded on beaches of intermediate width reported here. However, despite these limitations, our study provides new details on diets and trophic position given our use of longer-term, integrated measures of ghost crab diets (stable isotopes) and a dynamic food web approach.…”
Section: Discussionmentioning
confidence: 87%
“…In contrast, ghost crabs may avoid ingesting stomach contents of the comparatively larger mole crabs as they can select muscle tissue [ 37 ] which may be difficult when consuming either the smaller amphipods or coquinas. In addition, ghost crabs may supplement diets by microphagous depositing feeding when beaches become wider and less physically dynamic [ 49 , 85 ]. Higher values of TP (> 3) of ghost crabs from some beaches may indicate the use of carrion of secondary and tertiary consumers or eggs (e.g.…”
Section: Discussionmentioning
confidence: 99%
“…A ocorrência de insetos no nível superior de praias arenosas pode estar diretamente associada ao depósito de detritos, de origem natural ou antrópica. Essas acumulações densas de depósitos orgânicos representam uma importante fonte de alimento não só para insetos, mas também para alguns crustáceos detritívoros (GANDARA -MARTINS et al, 2010;ODEBRECHT et al, 2014;PINOTTI et al, 2014). Na praia estudada o nível médio superior está localizado a pequena distância da vegetação de porte herbáceo-arbustivo.…”
Section: Resultsunclassified
“…É também comum a presença de necrófagos como o crustáceo isópodo Excirolana braziliensis. Além disso, devido a densas acumulações de diatomáceas e detritos orgânicos, formando manchas escuras no nível superior da praia, podem ser encontrados coleópteros terrestres (ODEBRECHT et al 2014;PINOTTI et al 2014).…”
Section: Introductionunclassified
“…This was because this survey used a database that relies on users to upload reports of species interactions (Poelen et al 2014), and is thus subject to the users knowledge since, if only users with knowledge of or access to information on certain taxonomic groups or geographic regions have contributed to the database, there will be gaps in the information therein. For example, no records of bivalve consumption or consumption of the same bivalves as any crab taxon were found for several gastropod groups (see Materials and methods), but given the wide diversity of crabs, gastropods, and bivalves in the world and the fact that some members of these groups are known to consume bivalves and/or compete with crabs for other types of shared food (e.g., Powers & Kittinger 2002, Chiu et al 2011, Pinotti et al 2014, Davenport et al 2015, such gaps more likely reflect the limitations of the database than the actual absence of trophic overlap (and potential K-S interactions) between these gastropods and crabs. Therefore, while the species groups identified herein are systems in which crab-gastropod K-S interactions likely occur, other crab and shell-boring gastropod taxa that feed on the same bivalves beyond those identified in this survey should be investigated for the occurrence of these interactions as well.…”
Section: Discussionmentioning
confidence: 99%