CIBERATIVISM AS A POTENTIAL INSTRUMENTALIZATION OF NEW TACTICS OF POLITIC PARTICIPATION

Given the founding principles of the Democratic Rule of Law, in this research we have the objective to reflect on how the interactions of public power with popular sovereignty were subjugated by the imposition of financial governance over the state autonomy, putting on defeat position the popular trust in political representativeness, with the technological influence on political participation. Nowadays, as the traditional means of protest and participatory instruments have become limited in their effectiveness of popular pressure, the advent of cyberactivism as a political practice has become a potential tool in managing social conflicts. On the other hand, a new profile of internet users (ordinary citizens) comes into play, making our reflection necessary to understand how the Big Data tool was appropriated to direct public opinion around election campaigns. This research used the dialectical method and was carried out through a bibliographic survey, seeking to dialogue with historical and legal concepts to understand the problem and the development of the objectives

Middle Miocene (Serravallian) rhodoliths and coralline algal debris in carbonate ramps (Betic Cordillera, S Spain)

Serravallian (middle Miocene) coralline algal assemblages at the southern margin of the Guadalquivir Basin (southern Spain) occur as rhodoliths preserved in situ or very close to their growth habitats (autochthonous–parautochthonous assemblages) and also as reworked remains (allochthonous assemblages). The former assemblages consist of spherical rhodoliths built up by encrusting to warty plants and also of large fragments of branches, whereas the latter are mostly unrecognizable small fragments occurring in channeled packstone–grainstone beds. In both cases, the most abundant components are members of the order Hapalidiales (Mesophyllum roveretoi, Mesophyllum sp., Lithothamnion ramosissimum, and less frequently Phymatolithon group calcareum and Lithothamnion group corallioides). Laminar growths of Lithoporella minus and branches of Spongites group fruticulosus and Sporolithon sp. occur very rarely. There are also anecdotal records of Subterraniphyllum thomasii, extending its upper stratigraphic range up to the Serravallian in the western Tethys. The autochthonous–parautochthonous coralline algal assemblages formed in a middle ramp, at several tens of meters of water depth, as suggested by the dominance of Hapalidiales. The allochthonous assemblages represent fragments of coralline algae derived from the middle ramp and redeposited in deeper settings, most likely the outer ramp, due to storm-generated currents.Instituto de Salud Carlos III Spanish Government PGC2018-099391-B-100Junta de Andalucia RNM-19

Trough cross-bedded rhodolith limestones in the Atlantic-linked Ronda Basin (Messinian, Southern Spain)

Rhodolith limestones occur in the upper part of the Miocene infill of the Ronda Basin in southern Spain. This basin was an embayment at the southern margin of the Atlantic-linked Guadalquivir Basin, the foreland basin of the Betic Cordillera. Messinian rhodolith limestones crop out in the mesa of the Roman settlement Acinipo. They mostly consist of trough cross-bedded rhodolith rudstones, which change basinward to large-scale planar cross-bedded rhodolith rudstones, which in turn pass laterally to planar cross-bedded and flatbedded bryozoan rudstones. Rhodoliths in rudstones are generally broken, exhibiting several phases of breakage and restarted growth of coralline algae. Many rhodoliths also show asymmetrical growth. The rudstone matrix is a packstone with fragments of coralline algae, bryozoans, calcitic bivalves, echinoids, and foraminifers. Large lithoclasts from the basement, heavily bored by bivalves, are common in the rhodolith rudstone, especially in the most massive type. Rhodolith characteristics and sedimentary structures suggest that trough cross-bedded rhodolith rudstones accumulated in submarine dunes moved by storm surges in a littoral wedge at the western side of a small bay (the Ruinas de Acinipo bay) in the Ronda Basin. Large-scale planar cross-bedded coralline algal and bryozoan rudstones formed in the foresets of the wedge progradation below the storm-wave base. The dominance of Lithophyllaceae and Hapalidiales, with scarce representatives of Corallinaceae in the coralline algal assemblages, reflects that Ronda and Guadalquivir basins opened to the Atlantic Ocean.Spanish Government PGC 2018-099391-B-I0

Coralline Algae at the Paleocene/Eocene Thermal Maximum in the Southern Pyrenees (N Spain)

During the Paleocene/Eocene Thermal Maximum, ~55.6 Ma, the Earth experienced the warmest event of the last 66Ma due to amassive release of CO2. This event lasted for ~100 thousands of years with the consequent ocean acidification (estimated pH = 7.8-7.6). In this paper, we analyze the effects of this global environmental shift on coralline algal assemblages in the Campo and Serraduy sections, in the south-central Pyrenees (Huesca, N Spain), where the PETM is recorded within coastal-to-shallow marine carbonate and siliciclastic deposits. In both sections, coralline algae occur mostly as fragments, although rhodoliths and crusts coating other organisms are also frequent. Rhodoliths occur either dispersed or locally forming dense concentrations (rhodolith beds). Distichoplax biserialis and geniculate forms (mostly Jania nummulitica) of the order Corallinales dominated the algal assemblages followed by Sporolithales and Hapalidiales. Other representatives of Corallinales, namely Spongites, Lithoporella as well as Neogoniolithon, Karpathia, and Hydrolithon, are less abundant. Species composition does not change throughout the Paleocene/Eocene boundary but the relative abundance of coralline algae as components of the carbonate sediments underwent a reduction. They were abundant during the late Thanetian but became rare during the early Ypresian. This abundance decrease is due to a drastic change in the local paleoenvironmental conditions immediately after the boundary. A hardground at the top of the Thanetian carbonates was followed by continental sedimentation. After that,marine sedimentation resumed in shallow, very restricted lagoon and peritidal settings, where muddy carbonates rich in benthic foraminifera, e.g., milioliids (with abundant Alveolina) and soritids, and eventually stromatolites were deposited. These initial restricted conditions were unfavorable for coralline algae. Adverse conditions continued to the end of the study sections although coralline algae reappeared and were locally frequent in some beds, where they occurred associated with corals. In Serraduy, the marine reflooding was also accompanied by significant terrigenous supply, precluding algal development. Therefore, the observed changes in coralline algal assemblages during the PETM in the Pyrenees were most likely related to local paleoenvironmental shifts rather than to global oceanic or atmospheric alterations.Spanish Ministerio de Ciencia e Innovacioon PGC2018-099391-B-100Junta de Andalucia RNM-190Basque Government Research Programme PGC2018-099391-B-100 IT930-1

Dung Beetle community and functions along a habitat-disturbance gradient in the Amazon:a rapid assessment of ecological functions associated to biodiversity

Although there is increasing interest in the effects of habitat disturbance on community attributes and the potential consequences for ecosystem functioning, objective approaches linking biodiversity loss to functional loss are uncommon. The objectives of this study were to implement simultaneous assessment of community attributes (richness, abundance and biomass, each calculated for total-beetle assemblages as well as small- and large-beetle assemblages) and three ecological functions of dung beetles (dung removal, soil perturbation and secondary seed dispersal), to compare the effects of habitat disturbance on both sets of response variables, and their relations. We studied dung beetle community attributes and functions in five land-use systems representing a disturbance gradient in the Brazilian Amazon: primary forest, secondary forest, agroforestry, agriculture and pasture. All response variables were affected negatively by the intensification of habitat disturbance regimes, but community attributes and ecological functions did not follow the same pattern of decline. A hierarchical partitioning analysis showed that, although all community attributes had a significant effect on the three ecological functions (except the abundance of small beetles on all three ecological functions and the biomass of small beetles on secondary dispersal of large seed mimics), species richness and abundance of large beetles were the community attributes with the highest explanatory value. Our results show the importance of measuring ecological function empirically instead of deducing it from community metrics

Caracterização Petrografia de Areias do complexo de Lobos Almirante Câmara, Bacia de Campos

O estudo de sistemas deposicionais turbidíticos tem sido muito freqüente dentro da sedimentologia em escalas macroscópicas a sísmicas. Estes fatores visam o melhor entendimento da arquitetura deposicional dos corpos arenosos e reservatórios petrolíferos de grande importância econômica. Porém neste trabalho foi realizada uma caracterização petrográfica microscópica das areias do Complexo de Lobos Turbidíticos Almirante Câmara, situado na bacia de Campos, de idade Pleistocênica e Holocênica. Uma boa compreensão de parâmetros como a composição mineralógica, além de aspectos texturais como granulometria, seleção e arredondamento dos grãos, fornece importantes informações sobre a proveniência dos sedimentos e ainda será possível buscar analogias com outros depósitos antigos formados em condições tectono-estratigráficas semelhantes. Como resultado da caracterização petrográfica observou-se que estas areias apresentam uma seleção moderada a pobre, com grãos predominantemente subangulosos e que são compostas basicamente por quartzo, feldspatos, bioclastos (Foraminíferos plantônicos de águas profundas e organismos de águas rasas) e micas. Desta forma estas areias são classificadas como subarcosianas, semelhantes à de outros depósitos turbidíticos do Terciário da mesma bacia de Campos