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  • 1
    Publication Date: 2021-05-19
    Description: Se presentan los resultados del análisis del comportamiento de las playas en el sector comprendido entre Barranquilla (Bocas de Ceniza) y la Flecha de Galerazarnba. Se levantaron 24 perfiles perpendiculares ala línea de costa durante los dos períodos climáticos característicos (seco y húmedo). En época seca, bajo la influencia de los vientos alisios, las playas pierden su berma y experimentan un retroceso significativo de su frente, en algunos casos del orden de decenas de metros exhibiendo un perfil cóncavo. En la época húmeda, cuando los vientos se debilitan, las playas se reconstruyen y exhiben en su morfología un perfil convexo. Entre Bocas de Ceniza y Santa Verónica las pendientes son suaves y están asociadas a sedimentos finos, mientras que en el sector sur aumenta el gradiente y el tamaño de grano en el frente de playa.
    Description: The results of analysis about the behavior of the beaches in the sector between Barranquilla (Bocas de Ceniza) and flecha de Galerazamba are presented. Twentyfour profiles perpendicular to the coastline were taken between both seasonal períods (dry and humid). On the chy period, under the influence of the westerlies, the beaches lose their berm and experience a significant retrogression on their foreshore, sometimes in the order of tens of meters, exhibiting a concave profile. On the humid season, when the easterlies weaken, the beaches bulld up and exhibit a convex profile in their morphology. Between Bocas de Ceniza and Santa Verónica the slof and are soft and are associated with fine sediment, while on the southern sector the gradient and the size of the grain increase on the foreshore.
    Description: Published
    Keywords: Nivel del mar. ; Vientos ; Oleaje ; Erosión ; Sedimentos ; ASFA_2015::G::Geodynamics ; ASFA_2015::G::Geomorphology ; ASFA_2015::M::Meteorology
    Repository Name: AquaDocs
    Type: Journal Contribution , Not Known
    Format: pp.23-38
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  • 2
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    In:  http://aquaticcommons.org/id/eprint/6587 | 704 | 2011-09-29 13:18:00 | 6587 | Fundacion Charles Darwin Foundation
    Publication Date: 2021-07-14
    Keywords: Conservation ; Ecology ; fire ; poaching ; tortoises ; reptiles ; Breeding Center ; Sierra Negra Volcano ; Isla Isabela ; Galápagos
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 8-10
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  • 3
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    In:  http://aquaticcommons.org/id/eprint/6699 | 704 | 2011-09-29 13:10:27 | 6699 | Fundacion Charles Darwin Foundation
    Publication Date: 2021-06-26
    Keywords: Conservation ; Ecology ; fire ; poaching ; tortoises ; reptiles ; Breeding Center ; Sierra Negra Volcano ; Isla Isabela ; Galápagos
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 48-50
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  • 4
    Publication Date: 2021-05-19
    Description: Morfológicamente la Plataforma Caribe colombiana en este sector se presenta relativamente estrecha y poco profunda, especialmente en el área cercana a la desembocadura del Río Magdalena donde alcanza los 12 mts. de profundidad. Esta cortada por 5 cañones de dirección estructural similar a las fallas Bolívar, Romeral, Santa Marta y Oca, lo cual indicaría una posible asociación de estos cañones a los sistemas de fallas. La sedimentación es esencialmente terrígena y su distribución sobre la plataforma está sujeta a la existencia del cañón del Magdalena, a los aportes del río y a su posterior repartición por las corrientes marinas lo cual explica la ausencia de un prisma sedimentario en esta zona.
    Description: Morphologically the Colombian Caribbean Platform in this sector is relatively narrow and shallow, specifically in the area near the mouth of the Magdalena river where reaches the 12 mts of depht. It is cut by 5 canyons structuraly similar to the Bolívar, Romeral, Santa Marta and Oca faults, indicating a possible association of this canyons to the fault sistem. The sedimentation is essentially terrigenous and its distribution over the platform is subject to the existance of the Magdalena canyon, to the river outfall and the effect of the marine current which explains the absence of a sedimentary prism in this area.
    Description: Published
    Keywords: Sedimentos ; Tectónica. ; Río. ; Clima ; ASFA_2015::G::Geomorphology ; ASFA_2015::G::Geodynamics ; ASFA_2015::H::Hydrology ; ASFA_2015::C::Continental shelves
    Repository Name: AquaDocs
    Type: Journal Contribution , Not Known
    Format: Pp.67-78
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  • 5
    Publication Date: 2021-05-19
    Description: La caracterización de la zona costera se orientó hacia el estudio de sus aspectos geomorfológicos, repartición sedimentológica sobre las plataformas arrecifales de cada una de las islas, evolución de la línea de costa desde 1996 hasta 2002, cobertura vegetal, uso actual del suelo, ecosistemas estratégicos, unidades de paisaje, infraestructura y equipamiento, condiciones sociales y calidad de vida, zonificación, asignación de usos prohibidos y permitidos, aspectos políticos y normativos de las instituciones que tienen incidencia en la zona costera, los cuales le sirven de herramienta para las Capitanías en sus zonas de competencia. La información se obtuvo mediante la fotointerpretación y comparación de fotografías aéreas IGAC de 1996 a escala 1:10.000 e imágenes de satélite ikonos del 2000 y 2002, en lo relacionado con los aspectos antes mencionados. Los resultados se plasmaron en mapas a escalas 1:20.000 y 1:50.000, de tal forma que del componente geomorfológico se obtuvo el mapa de distribución de unidades y rasgos geomorfológicos costeros que constituyen los criterios científicos y técnicos para el trazado del límite de la jurisdicción de DIMAR, junto con los lineamientos establecidos en el Decreto 2324/84, utilizados como herramienta de trabajo para la administración y toma de decisiones sobre la zona costera por parte de las Capitanías de Puerto y la autoridad ambiental local. El análisis de esta información es un insumo para la elaboración de planes de desarrollo, lo cual pretenderá generar en la comunidad, procesos de organización, concentración y movilización social.
    Description: The characterization of the coastal area was guided toward the study of its geomorphologic aspects, sedimentologic distribution on the coral reef platforms of each of the islands, evolution of the coast line from 1996 up to 2002, vegetable covering, current use of the floor, strategic ecosystems, landscape units, infrastructure and equipment, social conditions and quality of life, zonification assignment of forbidden and allowed uses, political and normative aspects of the institutions that have some incidence on the coastal area, whích serve as a tool for the harbour master's office in its jurisdiction areas. The information was obtained by means of the photointerpretation and the comparison of IGAC aerial photographs as of 1996 to scale 1:10.000 and IKONOS satellite images as of 2000 and 2002 in relation to the before mentioned aspects. The results were captured in maps to scales 1:5.000, 1:20.000 and 1:50.000, in such a way that from the geomorphological component, the map of distribution of units and geomorphic coastal features was obtained, which make up the scientific and technical criteria for the layout of the limit of the jurisdiction of DIMAR together with the established guidelines according to Decree 2324/84, used as a work tool for the administration and decision-making on the coastal area on the part of fue harbour master's office and the local environmental authority. The analysis of such information is a component for the production of development plans, which aims at generating in the community, organization processes, concentration, and social mobility.
    Description: Published
    Keywords: Costa ; Erosión ; Sedimentos ; ASFA_2015::G::Geodynamics ; ASFA_2015::G::Geomorphology
    Repository Name: AquaDocs
    Type: Journal Contribution , Not Known
    Format: pp.114-133
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  • 6
    Publication Date: 2021-05-19
    Description: Este trabajo es una continuación del proyecto “Estudio Geológico e Hidrológico del Golfo de Urabá” realizado en cooperación con la misión técnica francesa a partir de 1988 con una duración de dos años. En las instalaciones del CIOH, a través del programa ANIM del Center National de Recherches Scientifiques (CNRS), se efectuó el procesamiento de una imagen SPOT capturada sobre el área en época media (febrero/89), con el fin de determinar la circulación de las aguas superficiales en el Golfo durante este tiempo usando como trazador las plumas turbias (distribución del material en suspensión) de los ríos que desembocan allí (Atrato, León, Turbo, etc.). En la Universidad de Bordeaux (1991) se realizó el tratamiento de esta imagen con el programa Pericolor para la visualización del contorno costero del Golfo y la incidencia del frente de olas en las proximidades de Bocatarena, con el propósito de analizar en esta última la disipación y concentración de la energía de la ola en este tramo de la costa. Los cambios morfológicos costeros (erosión-sedimentación) ocurridos en esta área en los últimos años se obtuvieron a partir de comparaciones de la línea de costa de las cartas náutica de 1938 y 1983 y del contorno costero de la imagen SPOT de 1989. Asimismo fue posible determinar las variaciones del fondo marino a través de comparaciones batimétricas de las cartas antes mencionadas. La circulación de las aguas superficiales en el Golfo se presenta en dos sentidos: N-S hacia el sector oeste, esto lo determina la dirección este-oeste con tendencia hacia el sur de las plumas turbia frente a la desembocadura del río Atrato, influenciadas por la acción de los vientos Alisios durante esta época (media) del año; y S-N en la zona oriental del Golfo donde las plumas turbias están afectadas hacia el norte y cargadas de abundante material en suspensión. La pérdida de grandes extensiones de costa, la formación de flechas litorales y el desarrollo de deltas han determinado importantes cambios morfológicos en la línea de costa del Golfo en los últimos años. A diferencia de la línea de costa donde predomina la erosión sobre la sedimentación, el fondo marino del Golfo, presenta una gran acumulación del sedimentos hacia la parte este y central del mismo, específicamente a la altura de Bahía Colombia.
    Description: This work is a results of project "Hydrologic and Geologic study of the Urabá Gulf" corried out jointly wfth the Technical French Mission from 1988, which hada two year duration. At the CIOH, trough the Centre Nationale de Recherche Scientffique (CNRS) ANIM program the proccessing of a SPOT lmage took place; this image was received on an area during the mean stage (February/89) in order to determine the surface water circulation in the Gulf during such time using a turbidity feather (distríbutíon of material in suspension) of rivers flowíng there (Atrato, León, Turbo, etc). At the Bordeaux Uníversity (1991) a treatment of this image with the Perico/ar program was done for visualing the Gulf shore contour and the incidence of the wave fronts on the Bocatarena surroundings of Atrato river, in arder to analíze about the latter the. energy depositíon and concentration of waves around this section of the coast. The coasta! morpholígical changes (eros ion -sedimentation) ocurred within this area during the last recent years were obtained starting from comparisons of shore fines from nautical charts of 1938 and 1983 and from SPOT lmage coastal contour of 1989. A/so, ft was possible to determine the sea bottom mareations through bathymetric comparisons of the abovementioned charts. The Gulf surf ace water circulation shows two directions: N.S. towards the west sector which determines the East -west direction with a tendíng towards the south ot turbidity feather in front ot the river A trato flowíng; influenced by the action of trade winds during the age (mean) of the year; and N -Son the Gulf west zone where the turbidfty feather are affected towards the north and are loaded with plenty of material in suspension. The loss of large extensions of shore, the formation of /ftoral drifts and the development of deltas have determined important morpho!ogícal changes on the Gulf shore líne in the recent years. Contrary to the shore fine where erosion is predomínant overs sedimentation the Gulf bottom presents a great sediment acumulation towards its own east and central part specifically at Bahía Colombia.
    Description: Published
    Keywords: Oleaje ; Erosión ; Sedimentos ; ASFA_2015::D::Dynamical oceanography ; ASFA_2015::G::Geomorphology ; ASFA_2015::H::Hydrology
    Repository Name: AquaDocs
    Type: Journal Contribution , Not Known
    Format: Pp.43-58
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  • 7
    Publication Date: 2021-05-19
    Description: En este trabajo se presentan los resultados de la II Fase del estudio Oceanográfico realizado en el sector NE de la Guajira (Punta Chimare - Castilletes). Los depósitos superficiales sobre la plataforma continental lo constituyen doce facies sedimentarias con predominio de arenas hacia la zona litoral del área estudiada. Morfológicamente la plataforma se estrecha en la zona norte mientras que al sur se amplía considerablemente. Predominó la distribución de los menores rangos de biomasa para cada una de las épocas de muestreo presentándose más uniforme en la zona comprendida entre Castilletes y Puerto López. Los valores máximos de biomasa se incrementaron a lo largo del año, correlacionándose parcialmente con la temperatura y el oxígeno.
    Description: This paper shows the results of Phase II of an oceanographic research carried out in shallow and deep waters around the Guajira area. (Puerto Estrella -Castilletes) . The surface deposits on the continental shelf are made up of twelve sedimentaryf acies with sands prevailing towards the shore zone of the researched area. Morphologically the self is narrow within the north zone while it evidens considerably moving down south. The distribution of minor biomass features prevailed for each of the sampling ages becoming more uniform with in the zone between Castilletes and Puerto López. The maximum biomass values increased along the year, bling partially correlated with temperature and oxygen.
    Description: Published
    Keywords: Sedimentos ; Plataforma ; Litoral ; Especie ; ASFA_2015::G::Geomorphology ; ASFA_2015::M::Marine biology ; ASFA_2015::C::Continental shelves
    Repository Name: AquaDocs
    Type: Journal Contribution , Not Known
    Format: Pp.27-42
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  • 8
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    In:  http://aquaticcommons.org/id/eprint/5779 | 704 | 2011-09-29 14:34:08 | 5779 | Fundacion Charles Darwin Foundation
    Publication Date: 2021-07-12
    Keywords: Conservation ; Ecology ; fire ; Isla Isabela ; Geochelone elephantopus guntheri ; Volcano Sierra Negra ; Geochelone elephantopus vicina ; Volcano Cerro Azul
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 8-8
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  • 9
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    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 3, pp. 227-235
    Publication Date: 2024-01-12
    Description: The riparian forest is one of the most diverse environments of the La Plata River plains. It is represented by patches of humid forests, which are a valuable source of ecosystem services and have recreational \nand educational potential. However, the riparian forest has undergone constant modification, worsened by private \nreal-estate developments and a lack of government regulation. Among the reserves that protect the riparian \nforest, the Municipal Ecological Reserve of Avellaneda is the closest to the southern limit of the Autonomous City \nof Buenos Aires. Although there are around 300 species of wild fauna and flora informally registered in the area, \nthere are only a few studies published about its biodiversity. In this work, the diversity of thirteen native and exotic \nferns in the core area (Eco \xc3\x81rea) of the reserve is characterized, the origin of the species is also evaluated and \ncomparisons are made with other nearby protected areas. The Eco \xc3\x81rea of the Reserve plays an important role as \npart of the urban reserve corridor of the La Plata River plains and constitutes a refuge for both native and exotic \nruderal species. The present work represents the basis for future studies about the population dynamics and the \ncolonization strategies of the ferns.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Buenos Aires ; diversity ; ferns ; protected areas ; riparian forest ; ruderal
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 10
    Publication Date: 2024-04-22
    Description: The Global Consortium for the Classification of Fungi and fungus-like taxa is an international initiative of more than 550 mycologists to develop an electronic structure for the classification of these organisms. The members of the Consortium originate from 55 countries/regions worldwide, from a wide range of disciplines, and include senior, mid-career and early-career mycologists and plant pathologists. The Consortium will publish a biannual update of the Outline of Fungi and funguslike taxa, to act as an international scheme for other scientists. Notes on all newly published taxa at or above the level of species will be prepared and published online on the Outline of Fungi website (https://www.outlineoffungi.org/), and these will be finally published in the biannual edition of the Outline of Fungi and fungus-like taxa. Comments on recent important taxonomic opinions on controversial topics will be included in the biannual outline. For example, ‘to promote a more stable taxonomy in Fusarium given the divergences over its generic delimitation’, or ‘are there too many genera in the Boletales?’ and even more importantly, ‘what should be done with the tremendously diverse ‘dark fungal taxa?’ There are undeniable differences in mycologists’ perceptions and opinions regarding species classification as well as the establishment of new species. Given the pluralistic nature of fungal taxonomy and its implications for species concepts and the nature of species, this consortium aims to provide a platform to better refine and stabilise fungal classification, taking into consideration views from different parties. In the future, a confidential voting system will be set up to gauge the opinions of all mycologists in the Consortium on important topics. The results of such surveys will be presented to the International Commission on the Taxonomy of Fungi (ICTF) and the Nomenclature Committee for Fungi (NCF) with opinions and percentages of votes for and against. Criticisms based on scientific evidence with regards to nomenclature, classifications, and taxonomic concepts will be welcomed, and any recommendations on specific taxonomic issues will also be encouraged; however, we will encourage professionally and ethically responsible criticisms of others’ work. This biannual ongoing project will provide an outlet for advances in various topics of fungal classification, nomenclature, and taxonomic concepts and lead to a community-agreed classification scheme for the fungi and fungus-like taxa. Interested parties should contact the lead author if they would like to be involved in future outlines.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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