Reactive nitrogen compounds such as nitrite (NO2-) are highly toxic to aquatic animals and are partly responsible for the global decline of amphibians. On some fish and Caudata amphibian species low levels of sodium chloride significantly reduce the toxicity of nitrite. However, the nitrite-salinity interaction has not been properly studied in...
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June 29, 2023 (v1)PublicationUploaded on: July 1, 2023
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July 13, 2023 (v1)Publication
Temporary ponds are unpredictable habitats that exhibit inundation periods of variable duration (hydroperiods). We hypothesised that changes in microcrustacean assemblages, namely among ponds (spatial variation) and within ponds at a monthly scale (intra-annual variation), would differ according to hydroperiod length. We found that the...
Uploaded on: July 14, 2023 -
March 18, 2016 (v1)Publication
La sociedad actual requiere la formación de profesionales capaces de integrarse en grupos de trabajo que se autogestionen. Así, dentro del proceso de convergencia universitaria europea destaca como uno de sus objetivos el desarrollo de titulados capaces de integrarse en equipos de trabajo con la capacidad para la construcción individual y...
Uploaded on: December 4, 2022 -
June 5, 2017 (v1)Publication
El polifosfato (poly-P) es un compuesto de reserva de fosfato ampliamente distribuido entre células procariotas y eucariotas. Sin embargo, aún no está bien definida la metodología para su cuantificaci´on en muestras de sedimento, debido a la dificultad de encontrar un único extractante para compuestos espec´ıficos de P que no altere a los...
Uploaded on: March 27, 2023 -
June 29, 2023 (v1)Publication
Nestedness has been widely used to measure the structure of biological communities and occurs when species-poor sites contain subsets of species-rich ones. Here, we examine nested patterns across the macroinvertebrate assemblages of 91 ponds in Doñana National Park, Spain, and explore temporal variation of nestedness and species richness in 19...
Uploaded on: July 1, 2023 -
July 19, 2023 (v1)Publication
Seasonal variation in macroinvertebrate assemblages usually is attributed to environmental variability, but this relationship is unclear in temporary ponds because they are highly dynamic across time. We assessed the influence of environmental variables and biotic interactions on macroinvertebrate community structure in 22 temporary ponds...
Uploaded on: October 18, 2023 -
March 29, 2022 (v1)Publication
The Azorean islands have been historically affected by human activities, mainly due to the combined effects of habitat degradation and fragmentation, and the introduction of exotic species. We here aim to analyze the role of environmental characteristics and spatial descriptors in supporting regional biodiversity of macroinvertebrates by...
Uploaded on: March 25, 2023 -
June 30, 2023 (v1)Publication
We describe the spatial and temporal variation in the main characteristics of amphibian breeding habitats in Doñana National Park (south of Spain), during two hydrologic cycles with different rainfall amounts and timing (2002-2003 and 2005-2006). We also evaluate amphibian habitat requirements following a model selection approach based on...
Uploaded on: July 1, 2023 -
August 1, 2017 (v1)Publication
Addressing the underlying common processes within aquatic systems located in the same geographical region has long been used as a tool for the advancement of limnology. A limnological study of the Merja Sidi Boughaba in 2009 has shown that there are many common features between the physico-chemical and biological conditions of this site and...
Uploaded on: December 4, 2022 -
November 4, 2022 (v1)Publication
Películas aislantes de origen biológico.El objeto de la presente invención una película aislante natural, no sintetizada por métodos químicos, el procedimiento para su elaboración y la utilización de dicha película. La película se produce durante el creci
Uploaded on: December 4, 2022 -
June 8, 2017 (v1)Publication
Doñana alberga una extraordinaria variedad de sistemas acuáticos que se clasifican de forma general según su localización, bien en las arenas o en la marisma, ya que su hidrología depende, fundamentalmente, de la geomorfología de sus cuencas. La composición química de sus aguas varía en función de la lluvia, la evaporación, la descarga...
Uploaded on: March 27, 2023 -
June 7, 2017 (v1)Publication
El Lucio de "El Cangrejo Grande" (Parque Natural de Doñana) est´a situado en el tramo final del encauzamiento del río Guadiamar y forma parte de la marisma NE de Doñana. Las características hidrológicas de la zona son complejas y dinámicas debido a los diferentes aportes que recibe de la cuenca del Guadiamar, del estuario del Guadalquivir y del...
Uploaded on: March 27, 2023