14 research outputs found

    Seed storage conditions change the germination pattern of clonal growth plants in Mediterranean salt marshes.

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    8 pĂĄginas, 4 tablas, 8 figuras.The effect of salinity level and extended exposure to different salinity and flooding conditions on germination patterns of three saltmarsh clonal growth plants (Juncus subulatus, Scirpus litoralis, and S. maritimus) was studied. Seed exposure to extended flooding and saline conditions significantly affected the outcome of the germination process in a different, though predictable, way for each species, after favorable conditions for germination were restored. Tolerance of the germination process was related to the average salinity level measured during the growth/germination season at sites where established individuals of each species dominated the species cover. No relationship was found between salinity tolerance of the germination process and seed response to extended exposure to flooding and salinity conditions. The salinity response was significantly related to the conditions prevailing in the habitats of the respective species during the unfavorable (nongrowth/nongermination) season. Our results indicate that changes in salinity and hydrology while seeds are dormant affect the outcome of the seed-bank response, even when conditions at germination are identical. Because these environmental-history-dependent responses differentially affect seed germination, seedling density, and probably sexual recruitment in the studied and related species, these influences should be considered for wetland restoration and managementFinancial support from the Spanish Ministry of the Environment (MMA, project 05/99) and the Junta de AndalucĂ­a (research group 4086)enabled us to carry out the present work.Peer reviewe

    Seed storage conditions change the germination pattern of clonal growth plants in Mediterranean salt marshes.

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    8 pĂĄginas, 4 tablas, 8 figuras.The effect of salinity level and extended exposure to different salinity and flooding conditions on germination patterns of three saltmarsh clonal growth plants (Juncus subulatus, Scirpus litoralis, and S. maritimus) was studied. Seed exposure to extended flooding and saline conditions significantly affected the outcome of the germination process in a different, though predictable, way for each species, after favorable conditions for germination were restored. Tolerance of the germination process was related to the average salinity level measured during the growth/germination season at sites where established individuals of each species dominated the species cover. No relationship was found between salinity tolerance of the germination process and seed response to extended exposure to flooding and salinity conditions. The salinity response was significantly related to the conditions prevailing in the habitats of the respective species during the unfavorable (nongrowth/nongermination) season. Our results indicate that changes in salinity and hydrology while seeds are dormant affect the outcome of the seed-bank response, even when conditions at germination are identical. Because these environmental-history-dependent responses differentially affect seed germination, seedling density, and probably sexual recruitment in the studied and related species, these influences should be considered for wetland restoration and managementFinancial support from the Spanish Ministry of the Environment (MMA, project 05/99) and the Junta de AndalucĂ­a (research group 4086)enabled us to carry out the present work.Peer reviewe

    Doñana. Acta vertebrata. vol 24(1/2)

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    AlimentaciĂłn de la lagartija colilarga Psammodromus algirus (L) (Sauria, Lacertidae), en el litoral de Huelva (SO EspañaLa alimentaciĂłn de Myotis myotis Borkh, 1791 (Chiroptera, Vespertilionidae) en la cuenca del rio Guadix (sureste de España)DistribuciĂłn y selecciĂłn de hĂĄbitat de la garduña (Martes foina, Erxleben, 1777) en Vizcaya y Sierra Salvada (Burgos).Nuevo modelo de trampa para reducir el impacto de la pesca de cangrejos sobre los vertebrados en las marismas del GuadalquiviThe functions of song and the spatial pattern of song production in the rufous bush chat (Cercotrichas galactotes)MigraciĂłn e invernada de las lavanderas cascadena Motacilla cinerea y blanca M. alba en la PenĂ­nula IbĂ©rica e Islas BalearesAbundancia y reproducciĂłn de Glis glis (Linnaeus, 1766) (Rodentia, Gliridae) en el Pirineo occidental.Estatus de residencia, categorizaciĂłn trĂłfica y abundancia de aves en el zoolĂłgico de La Plata, ArgentinaAvifauna reproductora y estructura del hĂĄbitat en la campiña y sierras SubbĂ©ticas de JaĂ©nDispersiĂłn de semillas de retama (Retama sphaerocarpa (L.) Boiss por el conejo (Oryctolagus cuniculus L.) en el centro de EspañaGuĂ­a para la identificaciĂłn de restos Ăłseos pertenecientes a algunos peces comunes en las aguas continentales de la PenĂ­nsula IbĂ©rica para el estudio de la dieta de depredadores ictiĂłfagosDistribuciĂłn y abundancia del corzo (Capreolus capreolus L. 1758) en la provincia de JaĂ©nAlimentaciĂłn de las larvas de anuros en ambientes temporales del sistema del rio ParanĂĄ, Argentina.Mauremys leprosa como presa de Lutra lutraNota sobre la alimentaciĂłn del lince ibĂ©rico en el Parque Natural de la Sierra de AndĂșjar (Sierra Morena oriental)Presencia de Echinococcus granulosus (Cestoda) en un lobo ibĂ©rico (Canis lupusLa orientaciĂłn de los nidos de paseriformes estepariosComparaciĂłn de la dieta obtenida a partir de muestras estomacales y fecales del Tuco-tuco, Ctenomys mendocinus, en dos poblaciones de la precordillera de los Andes, ArgentinaEstructura genĂ©tica y distribuciĂłn de la variabilidad enzimĂĄtica en poblaciones naturales de estornino negro (Sturnus unicolor)EstimaciĂłn de la disponibilidad trĂłfica para el quebrantahuesos (Gypaetus barbatus) en Cataluña (NE España) e implicaciones sobre su conservaciĂłnPeer reviewe

    The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar and APOGEE-2 Data

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    This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky Surveys; the fifth and final release from the fourth phase (SDSS-IV). DR17 contains the complete release of the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey, which reached its goal of surveying over 10,000 nearby galaxies. The complete release of the MaNGA Stellar Library (MaStar) accompanies this data, providing observations of almost 30,000 stars through the MaNGA instrument during bright time. DR17 also contains the complete release of the Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) survey which publicly releases infra-red spectra of over 650,000 stars. The main sample from the Extended Baryon Oscillation Spectroscopic Survey (eBOSS), as well as the sub-survey Time Domain Spectroscopic Survey (TDSS) data were fully released in DR16. New single-fiber optical spectroscopy released in DR17 is from the SPectroscipic IDentification of ERosita Survey (SPIDERS) sub-survey and the eBOSS-RM program. Along with the primary data sets, DR17 includes 25 new or updated Value Added Catalogs (VACs). This paper concludes the release of SDSS-IV survey data. SDSS continues into its fifth phase with observations already underway for the Milky Way Mapper (MWM), Local Volume Mapper (LVM) and Black Hole Mapper (BHM) surveys

    Anales del III Congreso Internacional de Vivienda y Ciudad "Debate en torno a la nueva agenda urbana"

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    Acta de congresoEl III Congreso Internacional de Vivienda y Ciudad “Debates en torno a la NUEVa Agenda Urbana”, ha sido una apuesta de alto compromiso por acercar los debates centrales y urgentes que tensionan el pleno ejercicio del derecho a la ciudad. Para ello las instituciones organizadoras (INVIHAB –Instituto de InvestigaciĂłn de Vivienda y HĂĄbitat y MGyDH-MaestrĂ­a en GestiĂłn y Desarrollo Habitacional-1), hemos convidado un espacio que se concretĂł con potencia en un debate transdisciplinario. ConvocĂł a intelectuales de prestigio internacional, investigadores, acadĂ©micos y gestores estatales, y en una metodologĂ­a de innovaciĂłn articulĂł las voces acadĂ©micas con las de las organizaciones sociales y/o barriales en el Foro de las Organizaciones Sociales que tuvo su espacio propio para dar voz a quienes estĂĄn trabajando en los desafĂ­os para garantizar los derechos a la vivienda y los bienes urbanos en nuestras ciudades del Siglo XXI

    ReparaciĂłn de la insuficiencia mitral funcional mediante abordaje del aparato subvalvular. Resultados a medio plazo

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    IntroducciĂłn y objetivos: El tratamiento quirĂșrgico de la insuficiencia mitral funcional continĂșa siendo objeto de amplio debate dada su elevada morbimortalidad y la ausencia de consenso acerca de la mejor opciĂłn terapĂ©utica (reparaciĂłn vs. sustituciĂłn). Presentamos nuestra experiencia a medio plazo en su tratamiento mediante reparaciĂłn valvular con abordaje del aparato subvalvular. MĂ©todos: Entre los años 2012 y 2016 se intervino en nuestro centro a un total de 16 pacientes con insuficiencia mitral de mecanismo iiib de Carpentier con un EuroSCORE logĂ­stico medio del 10,81%. En todos ellos se llevĂł a cabo una anuloplastia mitral restrictiva, junto con reposicionamiento del mĂșsculo papilar posteromedial en 14 casos y reaproximaciĂłn de los mĂșsculos papilares en 2 casos. En 12 pacientes se llevĂł a cabo otro procedimiento asociado. Resultados: El tiempo de seguimiento medio fue de 29,5 meses. Hubo 2 muertes perioperatorias. No hubo mĂĄs fallecimientos durante el seguimiento. La recurrencia de insuficiencia mitral > 2 fue del 12,5% (2 pacientes). Únicamente los 2 pacientes con insuficiencia mitral > 2 reingresaron en algĂșn momento del seguimiento por insuficiencia cardĂ­aca, permaneciendo el resto en clase funcional i-ii/iv. Conclusiones: El abordaje del aparato subvalvular en la reparaciĂłn de la insuficiencia mitral funcional se presenta como una alternativa vĂĄlida en el tratamiento de este tipo de insuficiencia, ofreciendo buenos resultados en lo que a evoluciĂłn postoperatoria y tasa de recidiva a medio plazo se refiere

    Biodiversity 2016. Status and Trends of Colombian Continental Biodiversity

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    This third volume of the annual report on biodiversity in Colombia continues the editorial line that begun in 2014. Using novel analytical and graphic proposals, these reports have the goal of communicating the contents to a broad public, making it available for discussion without sacrificing the quality of information. The challenge of communication continues to be a major part of the institutional project, and the new languages with which we are learning to communicate with society and other institutions are an experiment that we expect to be increasingly gratifying. The report for 2017 is already under construction and it counts on new digital technologies so the power of a colombian vital connection may be entirely expressed. The included content evidences that we are still far away from having a systematic follow-up about most of the topics related to the management of biodiversity and ecosystem services, which is the only way to evaluate the effectiveness of policies and investments made by society. In fact, a limitation that is recognized is that of identifying positive or negative changes that affect different levels of organization of life on this planet; therefore, our global navigation route of the Aichi targets is still to be verified. An additional purpose of this process includes the invitation of all Colombians to contribute in constructing and maintaining basic monitoring indicators for management since it is impossible to identify long-term trends of flora and fauna in the country without the support of institutions, researchers, and citizens. This challenge is immense in a megadiverse country such as Colombia. For this reason, the report will continue to open its pages to experts, and even indigenous peoples or local communities, for them to present their perspectives about environmental change and its effects on biodiversity in a systematic and documented manner. This has the objective of stimulating the commitment of everyone in the management of biodiversity and ecosystem services. The only way of overcoming the risk of extinction is through the active process of social learning in which all sectors assume a part of the complex responsibility in protecting the forms of life of the country, a roughly counted tenth of all creatures on Earth. I thank all the people that contributed in this Report, those who have supported us in the phases of production, and all readers and users, who are the ultimate judges of its utility.BogotĂĄ, D. C

    Biodiversidad 2016. Estado y Tendencias de la Biodiversidad Continental de Colombia

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    Esta tercera entrega del reporte anual de la biodiversidad en Colombia profundiza en la lĂ­nea editorial iniciada el año 2014 mediante nuevas propuestas analĂ­ticas y grĂĄficas, con la intenciĂłn de garantizar que la informaciĂłn llegue a todos los pĂșblicos y pueda ser discutida de manera amena sin sacrificio de calidad. La apuesta comunicativa sigue siendo central en el proyecto institucional y los nuevos lenguajes con los que estamos aprendiendo a conversar con la sociedad y las instituciones son un experimento que esperamos sea cada vez mĂĄs satisfactorio: ya estamos construyendo la versiĂłn 2017 con el apoyo de las nuevas tecnologĂ­as digitales de manera que la potencia de la conexiĂłn vital colombiana se exprese en toda su capacidad. Por los contenidos es evidente que aĂșn distamos mucho de tener una capacidad de seguimiento sistemĂĄtico para la mayorĂ­a de temas relativos a la gestiĂłn de la biodiversidad y los servicios ecosistĂ©micos, la Ășnica manera de evaluar si las medidas de polĂ­tica y las inversiones que realiza la sociedad estĂĄn teniendo los efectos deseados. De hecho, parte de las limitaciones reconocidas por robustamente los cambios positivos o negativos que afectan los diferentes niveles de organizaciĂłn de la vida planetaria, por lo cual las mismas metas de Aichi, nuestra carta de navegaciĂłn global, estĂĄn pendientes de verificaciĂłn. Un propĂłsito adicional de este proceso es la invitaciĂłn a todos los colombianos para contribuir con la construcciĂłn y alimentaciĂłn de los indicadores bĂĄsicos de seguimiento a la gestiĂłn, ya que es imposible identificar las tendencias de largo plazo en que estĂĄn inmersas la flora y fauna colombianas sin el apoyo de las instituciones, los investigadores y los ciudadanos: en el paĂ­s de la megadiversidad, el reto es inmenso. Por este motivo, este reporte irĂĄ abriendo sus pĂĄginas a expertos, incluso indĂ­genas o de comunidades locales, para que presenten de manera sistemĂĄtica y documentada sus perspectivas del cambio ambiental y sus efectos en la biodiversidad, con el ĂĄnimo de promover el compromiso de todos en su gestiĂłn. La Ășnica manera de superar el riesgo de extinciĂłn es mediante un activo proceso de aprendizajes sociales que haga que todos los sectores asuman una parte de la compleja responsabilidad que significa proteger todas las formas de vida del paĂ­s, una dĂ©cima parte mal contada de las planetarias. Agradezco a las decenas de personas que contribuyeron con este reporte, a quienes nos han apoyado en todas las etapas de producciĂłn y a sus lectores y usuarios, quienes son en Ășltimo tĂ©rmino los jueces de su utilidad.BogotĂĄ, D. C

    Additional file 1: of Gene expression analysis at the onset of sex differentiation in turbot (Scophthalmus maximus)

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    Male and female length by age. Mean length (centimeters) by age (days post fertilization) is shown in a boxplot for males and females separately. Females are represented in magenta and males in blue. (PNG 6 kb

    The impact of surgical delay on resectability of colorectal cancer: An international prospective cohort study

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    AimThe SARS-CoV-2 pandemic has provided a unique opportunity to explore the impact of surgical delays on cancer resectability. This study aimed to compare resectability for colorectal cancer patients undergoing delayed versus non-delayed surgery.MethodsThis was an international prospective cohort study of consecutive colorectal cancer patients with a decision for curative surgery (January-April 2020). Surgical delay was defined as an operation taking place more than 4 weeks after treatment decision, in a patient who did not receive neoadjuvant therapy. A subgroup analysis explored the effects of delay in elective patients only. The impact of longer delays was explored in a sensitivity analysis. The primary outcome was complete resection, defined as curative resection with an R0 margin.ResultsOverall, 5453 patients from 304 hospitals in 47 countries were included, of whom 6.6% (358/5453) did not receive their planned operation. Of the 4304 operated patients without neoadjuvant therapy, 40.5% (1744/4304) were delayed beyond 4 weeks. Delayed patients were more likely to be older, men, more comorbid, have higher body mass index and have rectal cancer and early stage disease. Delayed patients had higher unadjusted rates of complete resection (93.7% vs. 91.9%, P = 0.032) and lower rates of emergency surgery (4.5% vs. 22.5%, P ConclusionOne in 15 colorectal cancer patients did not receive their planned operation during the first wave of COVID-19. Surgical delay did not appear to compromise resectability, raising the hypothesis that any reduction in long-term survival attributable to delays is likely to be due to micro-metastatic disease
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