Biologia Evolutiva, Ecologia i Ciències Ambientals: Enviaments recents
Ara mostrant els elements 181-200 de 1903
Ecologia y distribucion de Senecio pterophorus (Compositae) en la Peninsula Iberica.
En este trabajo se describen el área de distribución y el número de poblaciones de la especie sudafricana Senecio pterophorus DC. en Cataluña, única área de la Europa continental de donde hasta ahora se conoce. Esta especie ...
Mouth gape determines the response of marine top predators to long-term fishery-induced changes in food web structure
Here, we analyse changes throughout time in the isotopic niche of the Franciscana dolphin (Pontoporia blainvillei), the South American fur seal (Arctocephalus australis) and the South American sea lion(Otaria flavescens) ...
Between sea angels and butterflies: a global phylogeny of pelagic pteropod molluscs
Pteropods, holoplanktonic gastropods, play pivotal roles in marine ecosystems as integral components of food webs and carbon cycling. With global change threatening pelagic ecosystem equilibrium, conserving pteropod ...
CpG methylation frequency of TET2, GRIA2, and CDKN2A genes in the North Atlantic fin whale varies with age and between populations.
Recovery rates for baleen whales that were decimated by exploitation vary between species and populations. Age determination is critical for the understanding of recovery trends and population structure, but determining ...
Sobre els trets distintius dels sòls mediterranis
En aquest article es revisen els components de la fertilitat dels sòls mediterramis i es discuteix les seves característiques generals, així com la suposada oligotrofia que sovint se'ls ha atribuït. La tipologia d'aquests ...
25-years of biomonitoring in two mediterranean streams (Llobregat and Besos basins, NE Spain)
Biological water quality changes in two Mediterranean river basins from a network of 42 sampling sites assessed since 1979 are presented. In order to characterize the biological quality, the index FBILL, designed to ...
Evolutionary history, genomic adaptation to toxic diet, and extinction of the carolina Parakeet
As the only endemic neotropical parrot to have recently lived in the northern hemisphere, the Carolina parakeet (Conuropsis carolinensis) was an iconic North American bird. The last surviving specimen died in the Cincinnati ...
Aportació al coneixement florístic de les Guilleries i del Collsacabra (Catalunya Oriental), III
En la present nota indiquem un seguit de novetats corològiques per a la flora vascular dels massissos de les Guilleries i del Collsacabra.
Codorniz Común – Coturnix coturnix (Linnaeus, 1758)
La Codorniz común es un ave galliforme perteneciente a la familia Phasianidae y subfamilia Phasianinae. La Codorniz común fue descrita como Tetrao coturnix por el naturalista sueco Carl Nilsson Linnaeus en 1758, en la ...
Hydraulic and biological controls of biofilm nitrogen uptake in gravel-bed streams
Epibenthic biofilms are important in regulating nitrogen (N) fluxes in stream ecosystems. The efficiency of the regulation is controlled by hydraulic and biological processes and their interactions. However, knowledge on ...
Modelling the seasonal impacts of a wastewater treatment plant on water quality in a Mediterranean stream using microbial indicators
Faecal pollution modelling is a valuable tool to evaluate and improve water management strategies, especially in a context of water scarcity. The reduction dynamics of five faecal indicator organisms (E. coli, spores of ...
Natural or naturalized? phylogeography suggests that the abundant sea urchin arbacia lixula Is a recent Colonizer of the Mediterranean
We present the global phylogeography of the black sea urchin Arbacia lixula, an amphi-Atlantic echinoid with potential to strongly impact shallow rocky ecosystems. Sequences of the mitochondrial cytochrome c oxidase gene ...
Phenotypic plasticity in the Caribbean sponge Callyspongia vaginalis (Porifera: Haplosclerida)
Sponge morphological plasticity has been a long-standing source of taxonomic difficulty. In the Caribbean, several morphotypes of the sponge Callyspongia vaginalis have been observed. To determine the taxonomic status of ...
Melatonin triggers tissue-specific changes in anthocyanin and hormonal contents during postharvest decay of Angeleno plums
Plum is a stone fruit that stands out for having a short shelf-life because of its high susceptibility to rapid deterioration. Part of this deterioration is explained by fruit overripening. Recently, the role of melatonin ...
Avaluació de la població de llagostes (Palinurus elephas) de les Illes Medes. Exercici 2001
Podeu consultar l'Informe complet a: http://hdl.handle.net/2445/23672
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 ...
Algunos datos sobre las comunidades vegetales de la Fageda de Jorda (Olot)
A pocos kilómetros al este de Olot, entre la Costa de Pujou y el Puig de Sant Jordi de Sa Cot, el llano está cubierto en gran parte por hayedos frondosos. Ellos han merecido al paraje el nombre de Fageda de Jordá, al cual ...
Seguiment de la població de Meros (Epinephelus marginatus) i d'altres espècies vulnerables de les Illes Medes i la costa veïna parcialment protegida (1997)
Podeu consultar l'Informe complet a: http://hdl.handle.net/2445/23662
A trait-based approach reveals the feeding selectivity of a small endangered Mediterranean fish
Functional traits are growing in popularity in modern ecology, but feeding studies remain primarily rooted in a taxonomic-based perspective. However, consumers do not have any reason to select their prey using a taxonomic ...
RiuNet 'The Manual' to view the contents of the app and to make an assessment without the use of a smart device
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