Biologia Evolutiva, Ecologia i Ciències Ambientals: Envíos recientes
Mostrando ítems 121-140 de 1903
Avaluació de la població de llagostes (Palinurus Elephas) de les Illes Medes. Exercici 2000
Podeu consultar l'Informe complet a: http://hdl.handle.net/2445/23669
Influence of game restocking on the migratory behaviour of the common quail, Coturnix coturnix
Background: The common quail, Coturnix coturnix, is a migratory bird hunted extensively across Europe. To satisfy this hunting interest, thousands of farm-reared birds are restocked every year. However, restocked individuals ...
First report of the pantropical species Diploschistes rampoddensis from Europe
The lichen species Diploschistes rampoddensis, previously known only from a few localities in tropical and subtropical Asia and Oceania, is reported here for the first time in Europe. A detailed description, including ...
Technical Note: a comparison of two empirical approaches to estimate in-stream net nutrient uptake
To establish the relevance of in-stream processes on nutrient export at catchment scale it is important to accurately estimate whole-reach net nutrient uptake rates that consider both uptake and release processes. Two ...
Mixing chia seeds and sprouts at different developmental stages: A cost-effective way to improve antioxidant vitamin composition
Various approaches can be used to improve chemical food composition avoiding the low acceptance risks that imply the use of transgenic crops. Here, we evaluated the antioxidant vitamin composition of dry and germinating ...
Drying shapes the ecological niche of aquatic fungi with implications on ecosystem functioning
Fungi are among the most abundant and diverse organisms on Earth and play pivotal roles in global carbon processing,nutrient cycling and foodwebs. Despite their abundant and functional importance, little is known about the ...
Estimating peanut and soybean photosynthetic traits using leaf spectral reflectance and advance regression models
One proposed key strategy for increasing potential crop stability and yield centers on exploitation of genotypic variability in photosynthetic capacity through precise high-throughput phenotyping techniques. Photosynthetic ...
Preferences of phytoplankton groups for waters of different trophic status in the northwestern Mediterranean Sea
We examined the preferences of phytoplankton groups for waters of different trophic status by comparing the distribution of 8 main phytoplankton groups during the spring bloom, post-bloom, and late stratification periods ...
Resazurin as a 'smart' tracer for quantifying metabolically active transient storage in stream ecosystems
We propose the experimental use of resazurin (Raz) and develop a metabolically active transient storage (MATS) model to include processes that may provide additional information on transient storage from a biogeochemical ...
Do Antarctic bivalves present microdebris? The case of Livingston Island
Marine microdebris (MD) seem to be widespread in benthic invertebrates, even in the most remote areas of the planet such as Antarctica, although the information available is still very scarce. Here we provide a detailed ...
Materiales para una flora de las algas del NE de España. I. Zygnemales
Posteriormente a la publicación de mi primera contribución a la flora algológica de nuestras aguas dulces (1944), he dado preferencia a la preparación de trabajos de carácter local y ecológico, por entender que éstos podían ...
Spatiotemporal variability in radial growth of trees in the Central Pyrenees: climatic and site influences.
To understand how tree growth has responded to recent climate warming, an understanding of the tree-climate-site complex is necessary. To achieve this, radial growth variability among 204 trees established before 1850 was ...
Els prats de l'alianÇa Xerobromion als Pirineus Catalans
En este trabajo se intenta dar una visión sintética de las comunidades de la alianza Xerobromion conocidas hasta el momento de los Pirineos catalanes. Se distinguen en dicho territorio nueve asociaciones distintas, cinco ...
Tagging reveals limited exchange of immature loggerhead sea turtles (Caretta caretta) between regions in the western Mediterranean.
Exchange of immature loggerhead sea turtles (Caretta caretta) between the northern and southern regions of the western Mediterranean was investigated using data obtained from several Spanish tagging programmes. Tagged ...
Geographic patterns of genetic variation in a broadly distributed marine vertebrate: new insights into loggerhead turtle stock structure from expanded mitochondrial DNA sequences
Previous genetic studies have demonstrated that natal homing shapes the stock structure of marine turtle nesting populations. However, widespread sharing of common haplotypes based on short segments of the mitochondrial ...
Stable isotopes reveal winter feeding in different habitats in blue, fin and sei whales migrating through the Azores
Knowing the migratory movements and behaviour of baleen whales is fundamental to understanding their ecology. We compared δ15N and δ13C values in the skin of blue (Balaenoptera musculus), fin (Balaenoptera physalus) and ...
Materiales para una flora de las algas del NE de España, IV b, Cyanophyceae
Rivulariaceae. Honoeothrix crustacea (Borzi) nov. comb. (= Leptochaete crustacea Borzi) (fig. 3, a).–Vaina blanda, incolora, transparente, sencilla y gruesa, de 6: de diámetro. Tricoma de 3, 5-4, verde azulado, muy poco ...
Ancient DNA analysis of 8000 B.C. near eastern farmers supports an early neolithic pioneer maritime colonization of Mainland Europe through Cyprus and the Aegean Islands
The genetic impact associated to the Neolithic spread in Europe has been widely debated over the last 20 years. Within this context, ancient DNA studies have provided a more reliable picture by directly analyzing the ...
Oxytocin receptor gene polymorphism (rs53576) and digit ratio associates with aggression: comparison in seven ethnic groups
Background: The specific role of the oxytocin receptor (OXTR) gene polymorphisms in emotional support seeking, related to social norms and culturally normative behavior, has been discussed in several studies. Evidence on ...
Sedimen-water nutrient fluxes: Preliminary results of in situ measurements in Alfaques Bay, Ebro River Delta.
Sediment-water exchanges of oxygen, ammonium, nitrate, total dissolved nitrogen, phosphate and total dissolved phosphorus were measured by means of an in situ incubator of 7 1 volume and 700 cm2 base area. The incubations ...
