Natural Landscapes Along Brazilian Coastline

Fernández, Guilherme Borges; Rocha, Thais Baptista da; Barboza, Eduardo Guimarães; Dillenburg, Sérgio Rebello; Rosa, Marcelo Prado Amaral; Ângulo, Rodolfo José; Souza, Marilei de Melo Tavares e; Oliveira, Luiz Henrique Sielski de; Domínguez, José Maria Landim

doi:10.1007/978-3-030-04333-9_10

Cited by 24 publications

(13 citation statements)

References 38 publications

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“…Curumim gives name to the prograded (or regressive) barrier that was formed in a very gentle embayment between Tramandaí and Torres [15] (Figure 1). The coastal plain where the Curumim barrier occurs is characterized by coastal sandy barriers and lagoons formed during the Quaternary [16], and its location in an intra-plate position suggests a tectonically stable condition [17]. There is no indication that basin subsidence and sediment compaction were relevant during the Holocene [18].…”

Section: Regional Settingmentioning

confidence: 99%

Holocene Sea-Level Changes in Southern Brazil Based on High-Resolution Radar Stratigraphy

et al. 2021

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This paper focuses on high-resolution coastal stratigraphy data, which were revealed by the Ground Penetrating Radar (GPR) system. Surveys performed with GPR on the surface of prograded barriers reveal patterns of reflections that allow the interpretation of the geometry and stratigraphy of coastal deposits in a continuous mode. At the Curumim prograded barrier in southern Brazil (29°30′ S–49°53′ W), a two-dimensional transverse GPR survey revealed, with high precision, a serial of contacts between aeolian deposits of relict foredunes and relict beach deposits that have a strong correlation with sea level. In a 4 km GPR profile, a total of 24 of these contacts were identified. The high accurate spatial positioning of the contacts combined with Optical Stimulated Luminescence dating resulted in the first confident sea-level curve that tells the history of sea-level changes during the last 7 ka on the southernmost sector of the Brazilian coast. The curve shows that sea-level was still rising before 6 ka BP, with a maximum level of 1.9 m reached close to 5 ka BP; after that, sea-level started to falling slowly until around 4 ka BP when fall accelerated.

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Section: Regional Settingmentioning

confidence: 99%

Holocene Sea-Level Changes in Southern Brazil Based on High-Resolution Radar Stratigraphy

et al. 2021

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“…Although all mangroves grow in fluctuating environmental conditions, such as tidal cycles, high salinity, high temperatures, and anaerobic muddy soils ( Jacotot et al, 2019 ), among the analyzed mangroves, northeastern mangroves are the ones that inhabit the most extreme conditions. Located on the semi-arid coast of Brazil ( Fernandez et al, 2019 ), these mangroves are subjected to the highest minimum temperatures and potential evapotranspiration, as well as the lowest precipitation and organic-matter contents. Based on the physical and chemical variables alone ( Figure 2 ), northern and southern mangroves already displayed a certain degree of similarity, which was reinforced by adding the biological information on the ASVs through CCA ordination ( Figure 6 ).…”

Section: Discussionmentioning

confidence: 99%

Brazilian Semi-Arid Mangroves-Associated Microbiome as Pools of Richness and Complexity in a Changing World

et al. 2021

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Mangrove microbiomes play an essential role in the fate of mangroves in our changing planet, but the factors regulating the biogeographical distribution of mangrove microbial communities remain essentially vague. This paper contributes to our understanding of mangrove microbiomes distributed along three biogeographical provinces and ecoregions, covering the exuberant mangroves of Amazonia ecoregion (North Brazil Shelf) as well as mangroves located in the southern limit of distribution (Southeastern ecoregion, Warm Temperate Southwestern Atlantic) and mangroves localized on the drier semi-arid coast (Northeastern ecoregion, Tropical Southwestern Atlantic), two important ecotones where poleward and landward shifts, respectively, are expected to occur related to climate change. This study compared the microbiomes associated with the conspicuous red mangrove (Rhizophora mangle) root soils encompassing soil properties, latitudinal factors, and amplicon sequence variants of 105 samples. We demonstrated that, although the northern and southern sites are over 4,000 km apart, and despite R. mangle genetic divergences between north and south populations, their microbiomes resemble each other more than the northern and northeastern neighbors. In addition, the northeastern semi-arid microbiomes were more diverse and displayed a higher level of complexity than the northern and southern ones. This finding may reflect the endurance of the northeast microbial communities tailored to deal with the stressful conditions of semi-aridity and may play a role in the resistance and growing landward expansion observed in such mangroves. Minimum temperature, precipitation, organic carbon, and potential evapotranspiration were the main microbiota variation drivers and should be considered in mangrove conservation and recovery strategies in the Anthropocene. In the face of changes in climate, land cover, biodiversity, and chemical composition, the richness and complexity harbored by semi-arid mangrove microbiomes may hold the key to mangrove adaptability in our changing planet.

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“…For taxonomy, we used specialized literature (Hendler et al, 1995;Hooper & van Soest, 2002;Morrow & Cárdenas, 2015;Cook et al, 2018;Schwaha, 2020) and on-line resources, such as the World Register of Marine Species (WoRMS Editorial Board, 2021) and World Porifera Database (van Soest et al, 2021). For the geographical distribution, we used the Brazilian coast classification proposed by Fernandez et al (2019), which divided this region in: Northern coast (from Cape Orange to São Marcos Bay), Northeastern coast (landscapes between São Marcos Bay and Cape Calcanhar), Eastern coast (from south of Cape Calcanhar to Cape Frio), Southeast coast (landscapes between Cape Frio to Cape Santa Marta), and Southern coast (from Cape Santa Marta to Chuí). In addition, we also mentioned the Brazilian States where the specimens were collected (Figure 1).…”

Section: Methodsmentioning

confidence: 99%

The Porifera, Cnidaria, Bryozoa, and Echinodermata Collections of the Universidade Federal Do Ceará: Contributions to the Marine Biodiversity Knowledge of Northeastern Brazil

Salani

Arruda

Silva

et al. 2022

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In the last years, in addition to recording the diversity, the biological collections have also been used as repositories for ecological data. In order to contribute to the knowledge of Brazilian biological collections and, consequently, Brazil’s biodiversity, especially marine, the present study brings data from four regional collections (phyla Porifera, Cnidaria, Bryozoa, and Echinodermata) of the Departamento de Biologia, Universidade Federal do Ceará. The composition and geographic distribution data of each phylum were obtained by analyzing the digital spreadsheets containing the information about the deposited material. Together, the analyzed collections have 1,378 lots, being 303 of Porifera, 131 of Cnidaria, 414 of Bryozoa, and 530 of Echinodermata. Despite their regional nature, the collections of Porifera, Cnidaria, Bryozoa and Echinodermata of the Universidade Federal do Ceará represent, respectively, 6.5%, 6.9%, 10.7%, and 17.5% of the species so far recorded for the Brazilian coast. Although regional biological collections can help to better understand the diversity, there has never been a long-term policy formation and maintenance of scientific collections in Brazil. The preservation of these repositories, together with the sharing of their knowledge, will allow for more appropriate conservation decision-making in local, regional, and global scales. Keywords: biological collections, sponges, cnidarians, bryozoans, echinoderms.

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Natural Landscapes Along Brazilian Coastline

Cited by 24 publications

References 38 publications

Holocene Sea-Level Changes in Southern Brazil Based on High-Resolution Radar Stratigraphy

Holocene Sea-Level Changes in Southern Brazil Based on High-Resolution Radar Stratigraphy

Brazilian Semi-Arid Mangroves-Associated Microbiome as Pools of Richness and Complexity in a Changing World

The Porifera, Cnidaria, Bryozoa, and Echinodermata Collections of the Universidade Federal Do Ceará: Contributions to the Marine Biodiversity Knowledge of Northeastern Brazil

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