Biologia Evolutiva, Ecologia i Ciències Ambientals: Enviaments recents
Ara mostrant els elements 201-220 de 1903
Els socis d'honor de la ICHN, aquest any, Jordi Ribes i Rius
Es fa un breu repàs històric de la Institució Catalana d'Història Natural (ICHN) fins que s'instaura la categoria de Soci d'Honor de la ICHN. Des del 2001 fins al 2014 han estat guardonats amb aquesta distinció: Oriol Riba ...
Streamflow reduction induces early parental care in Salaria fluviatilis (Asso, 1801) males.
This study investigated the effect of hydrological stress (streamflow reduction) on the reproductive and nesting behaviour of freshwater blenny (Salaria fluviatilis) males in a Mediterranean-type stream in NE Spain (a ...
Enhanced Botrytis cinerea resistance of Arabidopsis plants grown in compost may be explained by increased expression of defense-related genes, as revealed by microarray analysis
Composts are the products obtained after the aerobic degradation of different types of organic matter waste and can be used as substrates or substrate/soil amendments for plant cultivation. There is a small but increasing ...
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 ...
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 ...
Fungal biodiversity mediates the effects of drying on freshwater ecosystem functioning
Investigating the influence of biodiversity on ecosystem functioning over environmental gradients is needed to anticipate ecosystem responses to global change. However, our understanding of the functional role of freshwater ...
Improving water quality does not guarantee fish health: Effects of ammonia pollution on the behaviour of wild-caught pre-exposed fish.
Ammonia is a pollutant frequently found in aquatic ecosystems. In fish, ammonia can cause physical damage, alter its behaviour, and even cause death. Exposure to ammonia also increases fish physiological stress, which can ...
Crossing the Pillars of Hercules: Understanding transoceanic migrations of seabirds throughout their breeding range
Variability in long‐distance migration strategies is still poorly understood due to the fact that individuals are often tracked from a single colony/population. Transoceanic migrations of Scopoli's shearwaters (Calonectris ...
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 ...
Moving to the sea: a challenge for an inshore species, the slender-billed gull
The slender-billed gull Chroicocephalus genei is a typical saltpan and brackish lagoon inshore forager. In 2005, there were two breeding colonies in the Ebro Delta (western Mediterranean): one south of the delta on a large ...
Cartografía diacrónica: estabilidad y cambios en la vegetación de Rasos de Peguera (Prepirineos Orientales), 1956-2014. Actas XI Coloquio de Botánica pirenaicocantábrica
We analyse here the changes occurring in the vegetation of Rasos de Peguera Massif (2,057 m a.s.l., Eastern Pyrenees) in the period 1956-2014, by means of diachronic cartography. Our study includes a protected area (the ...
La recerca en ecologia a Catalunya, avui
Els autors passen revista a la recerca que, en els diferents camps de l'ecologia, es duu a terme actualment en les universitats i centres de recerca de Catalunya. L'ecologia terrestre i l'aquàtica (limnologia i ecologia ...
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 ...
Leaf Size modulation by cytokinins in sesame plants
Phytohormones play important roles in controlling leaf size and in the modulation of various stress responses, including drought. In this study, hormone profiling analyses by ultra high-performance liquid chromatography ...
The importance of intraespeciphic variation in the taxonomy of marine nematodes: The case of Terschellingia longispiculata Wieser & Hopper 1967 (Nematoda, Linhomoeidae)
In the presentstudy, the priority of taxonomic characters of cephalic region of Terschellingialongispiculata over those of the tail and reproductive system is discussed.Four morphological varieties of the species are ...
Phanacis urospermi (Kieffer, 1901) (Hymenoptera, Cynipidae)- an interestin reord from Malta
The only Cynipidae so far recorded from Malta is Diplolepis eglanteriae (Hartig, 1840) which induces smooth pea-like galls on Rosa sempervirens L. (Mifsud, 2016). Recently, one of us (MZ) reared a species of Cynipidae from ...
Patrón espacial de un ecotono bosque subalpino pastos alpinos (Las Cutas, Ordesa, Pirineos Centrales)
Describimos el patrón espacial de un ecotono bosque subalpino-pastos alpinos, que incluye los límites altitudinales del bosque y del árbol, dominado por Pinus uncinata Ram. y localizado en los Pirineos Centrales. Situamos ...
Distribució i ecologia d'Arenaria maschlinsii (Caryophyllaceae) als Pirineus
Arenaria marschlinsii W.D.J. Koch [≡A. serpyllifolia L. subsp. marschlinsii (W.D.J. Koch) Nyman] és un oròfit eu-ropeu que es distribueix per les muntanyes del centre i sud d'Europa, Pirineus, Alps i Balcans.[...]
A mediterranean japonica rice (Oryza sativa) cultivar improvement through anther culture.
Certified seed producers systematically select and propagate registered varieties year after year in order to maintain their uniformity and the original registered cultivar traits. However, natural mutations, spontaneous ...
