Biologia Evolutiva, Ecologia i Ciències Ambientals: Enviaments recents
Ara mostrant els elements 761-780 de 1917
Potentially harmful elements pollute soil and vegetation around the Atrevida mine (Tarragona, NE Spain)
Mining activity is one of the main sources to pollute soil, water and plants. An analysis of soil and plant samples around the Atrevida mining area in Catalonia (NE Spain) was preformed to determine potentially harmful ...
Glyceria declinata Breb.
Alt Empordà: Les Salines, Agullana, sobre Sta. Eugènia, 400 m 31T DG 89, al Glycerio-Sparganion,). Bou i R. M. Manobens, 23-VI-1984, BC 649.115.
Review of the Hartig type collection of Alloxysta (Hymenoptera: Figitidae: Charipinae) and other Alloxysta material deposited in the Zoologische Staatssammlung Museum (Munich)
Hartig's collection of Alloxysta species, deposited in the Zoologische Staatssammlung Museum (ZSM, Munich, Germany), is here reviewed. In total, 19 species and 144 specimens have been studied. Fourteen species, of the ...
New evidences of the presence of Aphelocheirus aestivalis in the Iberian Peninsula, its ecology and description of two northeastern Iberian populations
The waterbug Aphelocheirus aestivalis is herein recorded for the first time in Northeastern Iberian Peninsula, constituting the first citation of the family Aphelocheiridae in the region. Yet, later on in 1989, the description ...
Biodegradation kinetics of dissolved organic matter chromatographic fractions
Controls on the degradation of dissolved organic matter (DOM) are complex but key to understand the role of freshwaters in the carbon cycle. Both the origin and previous degradation history have been suggested to determine ...
Metabolic origin of δ15N values in nitrogenous compounds from Brassica napus L. leaves
Nitrogen isotope composition (δ15N) in plant organic matter is currently used as a natural tracer of nitrogen acquisition efficiency. However, the δ15N value of whole leaf material does not properly reflect the way in which ...
Aplicacions de l'ADN antic en arqueologia. La nova 'Arqueologia Molecular'
[spa] La posibilidad de recuperar información genética a partir de restos fósiles ofrece una oportunidad única para dar respuesta a algunas cuestiones planteadas desde otras disciplinas. Entre las aplicaciones de interés ...
Sinergini y chalcidoidea (Hymenoptera) asociados a una agalla inducida por Atrusca sp. (Hymenoptera: Cynipidae: Cynipini) de la región noroeste de Sierra de Guadalupe, Estado de México.
Los Cynipidae son insectos inductores de agallas en Quercus. Las agallas son consideradas un microecosistema constituidas por el cinípido inductor (Cynipini), por el c inípido inquilino (Synergini) y por un grupo de avispas ...
The neotropical Gran Sabana region: palaeoecology and conservation
The Gran Sabana (GS) is a key region for understanding the origin of neotropical savannas and is an ideal location to test ecological hypotheses on long-term vegetation dynamics under the action of natural and anthropogenic ...
Ensayo de una tipología de las cuencas mediterráneas del proyecto GUADALMED siguiendo las directrices de la Directiva Marco del Agua
RESUMEN Utilizando la propuesta de tipología de ríos de la Directiva Marco del Agua en su anexo 2 se realiza un ensayo tipológico de los puntos de muestreo del proyecto GUADALMED. Según el sistema A, se presentan 16 ecotipos, ...
Genetic homogeneity, lack of larvae recruitment, and clonality in absence of females across western Mediterranean populations of the starfish Coscinasterias tenuispina.
We here analysed the populations' genetic structure of Coscinasterias tenuispina, an AtlanticMediterranean fssiparous starfsh, focusing on the western Mediterranean, to investigate: the distribution and prevalence of genetic ...
Stable isotopes and diet uncover trophic-niche divergence and ecological diversification processes of endemic reptiles on Socotra Island
Ecological diversification on islands typically results in divergence of ecological niches. As diet is a majorcomponent of species niches, we hypothesize that sister species within island monophyletic groupsdiversify in ...
Long-Term Macroevaluation of Environmental Enrichment in Three Brown Bears (Ursus arctos) at Barcelona Zoo
The evaluation of enrichment programs is important to determine their effect on nonhuman animal welfare. The daily activity pattern and use of space of 3 brown bears (Ursus arctos) were used for long-term macroevaluation ...
Bats, Bat-Borne Viruses, and Environmental Changes
During the past decade, bats were shown to a major source for new viruses. Among them are well known coronaviruses such as SRAS or MERS but also Ebola. At the same time, no direct infection from bat to human has been ...
Do metabolic changes underpin physiological responses to water limitation in alfalfa (Medicago sativa) plants during a regrowth period?
Drought is one of the most limiting factors on crop productivity under Mediterranean conditions, where the leguminous species alfalfa (Medicago sativa L.) is extensively cultivated. Whereas the effect of drought on plant ...
Using spatially distributed parameters and multi-response objective functions to solve parameterization of complex applications of semi-distributed hydrological models
Application of semi-distributed hydrological models to large, heterogeneous watersheds deals with several problems. On one hand, the spatial and temporal variability in catchment features should be adequately represented ...
Leaf versus whole-canopy remote sensing methodologies for crop monitoring under conservation agriculture: a case of study with maize in Zimbabwe
Enhancing nitrogen fertilization efficiency for improving yield is a major challenge for smallholder farming systems. Rapid and cost-effective methodologies with the capability to assess the effects of fertilization are ...
Fluctuaciones de varios años de período medio en la producción de fitoplancton en el mediterraneo occidental
Las posibilidades de explotación de cualquier ecosistema no sólo dependen de su producción primaria o básica (a nivel de los vegetales), sino también de cómo los valores de dicha producción en las distintas temporadas se ...
Meta-population feeding grounds of Cory's shearwater in the subtropical Atlantic Ocean: implications for the definition of Marine Protected Areas based on tracking studies
Aim Apical pelagic species forage in predictable habitats, and their movements should signal biologically and ecologically significant areas of the marine ecosystem. Several countries are now engaged in identifying these ...
