Results 11 to 20 of about 628 (162)
Patterns of protist distribution and diversification in alpine lakes across Europe. [PDF]
Deviations of high‐mountain protist communities from lowland communities are well known but the underlying diversification processes are hardly understood. Here, we studied protist communities in several European high‐mountain ranges and analyzed commonalities and deviations between these sites.
Vogt JC +4 more
europepmc +2 more sources
Effects of spatial distance and woody plant cover on beta diversity point to dispersal limitation as a driver of community assembly during postfire succession in a Mediterranean shrubland. [PDF]
In this work we analyze how beta diversity, and its components of turnover and nestedness, change in a herbaceous plant community during the first years following fire, and how they relate to spatial distance and the effect of woody plant cover. We found that dispersal limitation, indicated by an increase in similarity with spatial distance, is the ...
Torres I, Parra A, Moreno JM.
europepmc +2 more sources
Tracing species replacement in Iberian marbled newts. [PDF]
Hybrid zone movement has been suggested in the marbled newts, supported by the discovery of a Triturus marmoratus enclave. Here, we tested for a genomic footprint of species replacement of the receding T. marmoratus by the advancing T. pygmaeus, employing 54 newly developed nuclear SNPs and one mitochondrial DNA marker. In the absence of genetic traces
López-Delgado J +2 more
europepmc +2 more sources
Abstract Aim Holm oak (Quercus ilex L.) is regarded as a keystone plant species. Trophic interactions may affect the distribution and abundance of phytophagous species, but the number of arthropod species that use holm oak as a food resource and their levels of host specificity are not yet known.
Juan Antonio Hernández‐Agüero +3 more
wiley +1 more source
Abstract Impact of hydrology‐associated deformation spans from the study of the rock hydrological properties and aquifer dynamics to the identification of geological disaster precursors. We analyze a comprehensive set of hydrology‐associated deformation signals, recorded by two underground 70 m long strainmeters (GAL16 and LAB780) operating under the ...
Antonella Amoruso +2 more
wiley +1 more source
ABSTRACT Freshwater fish communities in Ecuador exhibit some of the highest levels of diversity and endemism in the Neotropics. Unfortunately, aquatic ecosystems in the country are under serious threat and conditions are deteriorating. In 2018–19, the government of Ecuador sponsored a series of workshops to examine the conservation status of Ecuador's ...
Windsor E. Aguirre +15 more
wiley +1 more source
Factors shaping community patterns of protists and bacteria on a European scale
Summary Factors shaping community patterns of microorganisms are controversially discussed. Physical and chemical factors certainly limit the survival of individual taxa and maintenance of diversity. In recent years, a contribution of geographic distance and dispersal barriers to distribution patterns of protists and bacteria has been demonstrated ...
Christina Bock +7 more
wiley +1 more source
Abstract Evidence is accumulating of the disruptive effects of climate change on species interactions. However, little is known about how changes in climate patterns, such as temporal shifts in rainfall events, will affect multitrophic interactions.
Martin Aguirrebengoa +3 more
wiley +1 more source
El desarrollo masivo de cianobacterias y la contaminación por cianotoxinas constituyen una problemática ambiental de especial interés en los sistemas acuáticos, debido a los diversos impactos negativos que los florecimientos (blooms) de cianobacterias ...
Karen Palacio Gómez +4 more
doaj +1 more source
Balance sedimentario del embalse de Ribarroja
El objetivo de este estudio ha sido construir un balance de sedimentos del embalse de Ribarroja, situado en el tramo inferior del río Ebro. Para ello, se han analizado datos continuos de caudal y transporte de sedimentos en suspensión tomados en los principales ríos que desembocan en el embalse, así como en la salida de la presa, para el período 2008 ...
A. Tena, D. Vericat, R.J. Batalla
openaire +4 more sources

