7 resultados para Fanerógamas marinas

em Portal de Revistas Científicas Complutenses - Espanha


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Se cita la presencia de 28 taxones de algas marinas interesantes procedentes del litoral levantino (Espafla, Mediterráneo occidental). Veinticuatro constituyen nuevas citas para dicho tramo del litoral mediterráneo peninsular. Destaca la presencia de Peyssonnella codana, primera cita para las costas mediterráneas españolas; Peyssonnelia magna, Metapeyssonnelia feldmannii, Ceramium fastigiatum var. flaccida, y Cystoseria sauvageauana var. polyoedematis.

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Fossil associations from the middle and upper Eocene (Bartonian and Priabonian) sedimentary succession of the Pamplona Basin are described. This succession was accumulated in the western part of the South Pyrenean peripheral foreland basin and extends from deep-marine turbiditic (Ezkaba Sandstone Formation) to deltaic (Pamplona Marl, Ardanatz Sandstone and Ilundain Marl formations) and marginal marine deposits (Gendulain Formation). The micropalaeontological content is high. It is dominated by foraminifera, and common ostracods and other microfossils are also present. The fossil ichnoasssemblages include at least 23 ichnogenera and 28 ichnospecies indicative of Nereites, Cruziana, Glossifungites and ?Scoyenia-Mermia ichnofacies. Body macrofossils of 78 taxa corresponding to macroforaminifera, sponges, corals, bryozoans, brachiopods, annelids, molluscs, arthropods, echinoderms and vertebrates have been identified. Both the number of ichnotaxa and of species (e. g. bryozoans, molluscs and condrichthyans) may be considerably higher. Body fossil assemblages are comparable to those from the Eocene of the Nord Pyrenean area (Basque Coast), and also to those from the Eocene of the west-central and eastern part of South Pyrenean area (Aragon and Catalonia). At the European scale, the molluscs assemblages seem endemic from the Pyrenean area, although several Tethyan (Italy and Alps) and Northern elements (Paris basin and Normandy) have been recorded. Palaeontological data of studied sedimentary units fit well with the shallowing process that throughout the middle and late Eocene occurs in the area, according to the sedimentological and stratigraphical data.

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The study of the Upper Jurassic-Lower Cretaceous deposits (Higueruelas, Villar del Arzobispo and Aldea de Cortés Formations) of the South Iberian Basin (NW Valencia, Spain) reveals new stratigraphic and sedimentological data, which have significant implications on the stratigraphic framework, depositional environments and age of these units. The Higueruelas Fm was deposited in a mid-inner carbonate platform where oncolitic bars migrated by the action of storms and where oncoid production progressively decreased towards the uppermost part of the unit. The overlying Villar del Arzobispo Fm has been traditionally interpreted as an inner platform-lagoon evolving into a tidal-flat. Here it is interpreted as an inner-carbonate platform affected by storms, where oolitic shoals protected a lagoon, which had siliciclastic inputs from the continent. The Aldea de Cortés Fm has been previously interpreted as a lagoon surrounded by tidal-flats and fluvial-deltaic plains. Here it is reinterpreted as a coastal wetland where siliciclastic muddy deposits interacted with shallow fresh to marine water bodies, aeolian dunes and continental siliciclastic inputs. The contact between the Higueruelas and Villar del Arzobispo Fms, classically defined as gradual, is also interpreted here as rapid. More importantly, the contact between the Villar del Arzobispo and Aldea de Cortés Fms, previously considered as unconformable, is here interpreted as gradual. The presence of Alveosepta in the Villar del Arzobispo Fm suggests that at least part of this unit is Kimmeridgian, unlike the previously assigned Late Tithonian-Middle Berriasian age. Consequently, the underlying Higueruelas Fm, previously considered Tithonian, should not be younger than Kimmeridgian. Accordingly, sedimentation of the Aldea de Cortés Fm, previously considered Valangian-Hauterivian, probably started during the Tithonian and it may be considered part of the regressive trend of the Late Jurassic-Early Cretaceous cycle. This is consistent with the dinosaur faunas, typically Jurassic, described in the Villar del Arzobispo and Aldea de Cortés Fms.

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En este artículo presentamos un balance de la Antropología de la Conservación en el Estado español. Durante las últimas décadas, la protección de los espacios naturales ha aumentado de una manera exponencial en todo el mundo. A la vez que se extendía esta patrimonialización de la naturaleza, los trabajos etnográficos sobre las áreas protegidas han ido ganando terreno dentro de la disciplina y, en particular, en el campo de la Antropología Ambiental. La mencionada bibliografía ha puesto de relieve los múltiples aspectos derivados de las nuevas políticas territoriales de regulación, apropiación y mercantilización de la ‘naturaleza’. En este trabajo realizamos una revisión exhaustiva de la producción generada a raíz de este interés por las áreas protegidas en nuestro país subrayando sus principales aportaciones, características y debilidades. De este modo pretendemos reflexionar acerca de su continuidad, con el fin de evitar la mera reiteración y favorecer el avance en sus resultados.

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This article studies the house of seclusion established for devout Indian and mestizo laywomen in the town of Pasig in 1740, and the dispute over tribute obligations that affected retreated or “pious” women. Founded outside of the Royal Patronato, this house of seclusion was extraordinarily attractive as a place for voluntary retreat and as an educational center. The dispute over tribute payments brought to light misgivings and conflicts of interest between the parties involved, while revealing the fundamental problem: the traditionally undefined juridical status of this type of establishment on the Islands. The solution given to the problem (tribute exemption) was to be extended to other similar centers in the Philippines. This article, realized with the use of unpublished documentation from the General Archives of the Indies, contributes therefore to our knowledge of the world of women in the Philippine archipelago; an ambit of great complexity that, as of yet, has been insufficiently studied.

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El presente artículo tiene como objetivo explorar la producción textual, la identidad blog y las prácticas sociales a partir de la sistematización de relatos escritos por bloggers latinoamericanos desde una perspectiva de la fenomenología tecnológica. Planteamos una discusión sobre la comprensión de prácticas sociotécnicas y significados de las experiencias humanas que bloggers latinoamericanos debaten a partir de sus posicionamientos políticos, económicos, éticos, sociales y culturales. Son “Creativos Culturales” del siglo XXI, debido a que escriben desde sus contextos, reflexionan las experiencias y cotidianidades de sus sociedades desde la red como ejercicio para la comprender el presente de Latinoamericana y su lugar en el mundo global. 

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Análisis de la tragedia legendaria en tres actos publicada en 1962 por el dramaturgo francés Jean Geschwin, en la que, a partir de una original recreación del mito de Progne y Filomela, se expresa la preocupación y el desasosiego provocados por las dos décadas de sangrientos conflictos bélicos casi ininterrumpidos que estaban desgarrando a Francia.