Cross-taxon congruence in benthic communities: Searching for surrogates in marine sediments

Corte, Guilherme Nascimento; Checon, Hélio H.; Fonseca, Gustavo; Vieira, Danilo Cândido; Gallucci, Fabiane; Domênico, Maikon Di; Amaral, A. Cecília Z.

doi:10.1016/j.ecolind.2017.03.031

Cited by 31 publications

(22 citation statements)

References 60 publications

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“…Amaral et al () investigated the intertidal macrofauna of both beaches and found that the number of species and abundance of individuals in Araçá Bay was more than double that observed at Barequeçaba. Similarly, Corte, Checon, et al (), Corte, Schlacher, et al () registered hundreds of macrofaunal species at Araçá, including higher numbers of polychaetes, molluscs, and crustaceans, whereas Nucci et al () registered only three species of Crustacea at Barequeçaba. The larger abundance of feeding items at Araçá, and more selective and constant feeding behavior by individuals of O. minuta at this site, may also explain the very high production and turnover (production/biomass) ratio observed by Petracco et al (), which is one of the highest found so far for sandy beach gastropods.…”

Section: Discussionmentioning

confidence: 93%

“…Araçá Bay is one of the richest coastal environments in São Paulo state, with more than 300 macrobenthic invertebrate species registered (Amaral, Migotto, Turra, & Schaeffer‐Novelli, ; Corte, Yokoyama, & Amaral, ) and significant benthic primary production (Corte, Checon, et al, ). Previous studies conducted over the last decades have examined the benthic biodiversity of Araçá Bay and Barequeçaba Beach and consistently confirmed the higher richness and productivity of the former area (e.g., Amaral et al, ; Amaral et al, ; Denadai et al, ; Nucci, Turra, & Morgado, ; Petracco et al, ).…”

Section: Methodsmentioning

confidence: 99%

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Spatial and temporal variation in the diet of the sandy beach gastropod Olivella minuta

Corte

Yokoyama

Checon

et al. 2019

Invertebrate Biology

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Marine gastropods exert a strong influence on the structure of marine ecosystems through their foraging activities, yet little is known about how environmental differences in space and time may affect their feeding behavior. To enhance the knowledge about the trophic ecology of coastal benthic species, we investigated temporal and spatial variations in the diet of the sandy beach gastropod Olivella minuta. We collected individuals of O. minuta seasonally, over 1 year, at two sandy beaches with different morphodynamic characteristics (Araçá Bay, an ultra-dissipative tidal flat, and Barequeçaba Beach, a dissipative beach) and analyzed the stomach contents of specimens of O. minuta. We identified approximately 15,000 food items, which we grouped into 14 categories. Thirteen food categories were found at each area, but significant differences in diet were observed between sites and sampling periods. Individuals from Araçá consumed an overall larger quantity and diversity of food items, which consisted mainly of foraminiferans, polychaetes, and crustaceans.At Barequeçaba, diatoms were the most important item, followed by crustaceans and polychaetes. Temporal variation depended on sites: the number of food items in the stomachs of individuals of O. minuta and dietary composition was roughly constant over time at Araçá, whereas larger variations were observed at Barequeçaba. Although O. minuta has been previously characterized as a carnivore/scavenger, our results show that the diet of this species varies in space and time and comprises a large variety of food resources. The species thus plays a role in the cycling of both vegetal and animal organic matter. This generalist behavior may allow individuals to shift their diet according to habitat alterations and food availability, thereby enhancing the persistence and resilience of O. minuta in different environments or future climate change scenarios. K E Y W O R D S coastal ecosystems, frequency of occurrence, numeric importance, stomach content, trophic ecology S U PP O RTI N G I N FO R M ATI O N Additional supporting information may be found online in the Supporting Information section. How to cite this article: Corte GN, Yokoyama LQ, Checon HH, Turra A. Spatial and temporal variation in the diet of the sandy beach gastropod Olivella minuta. Invertebr Biol.

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Section: Discussionmentioning

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Spatial and temporal variation in the diet of the sandy beach gastropod Olivella minuta

Corte

Yokoyama

Checon

et al. 2019

Invertebrate Biology

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“…Benthic communities in the entrance of the Araçá Bay are more dynamic and controlled by oceanic processes operating at the São Sebastião Channel, while those at the inner portion of the bay are under the influence of Mãe Isabel River (Corte et al 2017, Gorman et al 2017. As a consequence of this variable influence, the bay becomes shallower and richer in organic matter (Corte et al 2017), and also receives a higher nitrogen input (Gorman et al 2017) towards the inner portion.…”

Section: Discussionmentioning

confidence: 99%

“…As a consequence of this variable influence, the bay becomes shallower and richer in organic matter (Corte et al 2017), and also receives a higher nitrogen input (Gorman et al 2017) towards the inner portion. This environmental gradient spatially affects population dynamic of barnacles (Dias et al in press) and also the community structure of sessile species in spatial and temporal scales (Kitazawa et al in prep.).…”

Section: Discussionmentioning

confidence: 99%

Co-occurring morphologically distinct algae support a diverse associated fauna in the intertidal zone of Araçá Bay, Brazil

et al. 2018

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Co-occurring morphologically distinct algae support a diverse associated fauna in the intertidal zone of Araçá Bay, Brazil. Biota Neotropica. 18(1): e20170464. http://dx.doi.org/10.1590/1676-0611- BN-2017-0464 Abstract: Species diversity is regulated by historical, neutral and niche processes, with species tolerance, dispersal and productivity guiding diversity at larger scales, while habitat heterogeneity and biotic interactions acts in smaller scales. In rocky shores, several organisms provide secondary substrates for mobile fauna, with macroalgae being the most abundant and diverse ones. The patchiness promoted by different macroalgae hosts enhances small-scale heterogeneity and may increase and maintain the diversity of the mobile organisms, since there is a close relationship between the associated fauna and its hosts. In this study we selected three morphologically different macroalgae that coexist in the same rocky shore height in the Araçá Bay, an area under the threat of the nearby harbor expansion, and evaluated the fauna associated to each algal host. Even under similar abiotic pressure (same rocky shore height), the associated fauna of each algal host varied in number and composition, revealing a close relationship. The poorly branched foliose Ulva lactuca sustained a lower density of organisms and was dominated by isopods, while the heavily branched turf and Bostrychietum community showed a high density of organisms, with a dominance of peracarid crustaceans and annelids on the turf and more resistant groups, such as bivalves, acaris and terrestrial insects on the Bostrychietum. Previous studies in the Araçá Bay already revealed a large spatial heterogeneity in the processes and sessile organisms distribution, and here we highlight that this heterogeneity can be observed in an even smaller scale, with different algal hosts mediating the turnover of species in a scale of centimeters and meters, resulting in diversity maintenance of the associated fauna. Since the harbor expansion may prevent the occurrence of macroalgae as a result of light limitation by suspended platforms, we may expect not only a decrease in algal cover but also in the total diversity of the associated fauna in the Araçá Bay. Keywords: rocky shore, phytal, peracarids, structural complexity, spatial heterogeneity Algas co-ocorrentes e morfologicamente distintas suportam uma diversa fauna associada na zona entremarés na Baía do Araçá, BrasilResumo: A diversidade de espécies é regulada por processos históricos, neutros e de nicho, com a tolerância das espécies, dispersão e produtividade do sistema guiando a diversidade em grandes escalas, enquanto a heterogeneidade do habitat e as interações bióticas atuam em escalas menores. Em costões rochosos uma série de organismos funciona como substrato secundário para a fauna móvel, sendo macroalgas o tipo mais abundante e diverso de substrato. O mosaico formado pelas diferentes macroalgas hospedeiras aumenta a heterogeneidade em pequena escala e pode aumentar e manter a diversidade dos org...

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“…where the inner region is shallow and richer in organic matter than the outer region (Corte et al 2017). As the tidal range in this region is about 1 m, changes in the bathymetry of only 30 to 50 cm represent an important variation in the vertical gradient and distance from the supra-littoral zone to the soft bottom region.…”

Section: 2population Dynamics Of the Barnacle Chthamalus Bisinuatumentioning

confidence: 95%

Environmental heterogeneity at small spatial scales affects population and community dynamics on intertidal rocky shores of a threatened bay system

Dias

Christofoletti

Kitazawa

et al. 2018

Ocean & Coastal Management

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Cross-taxon congruence in benthic communities: Searching for surrogates in marine sediments

Cited by 31 publications

References 60 publications

Spatial and temporal variation in the diet of the sandy beach gastropod Olivella minuta

Spatial and temporal variation in the diet of the sandy beach gastropod Olivella minuta

Co-occurring morphologically distinct algae support a diverse associated fauna in the intertidal zone of Araçá Bay, Brazil

Environmental heterogeneity at small spatial scales affects population and community dynamics on intertidal rocky shores of a threatened bay system

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