Biologia Evolutiva, Ecologia i Ciències Ambientals: Recent submissions
Now showing items 301-320 of 1903
Stable isotopes unveil habitat partitioning among the marine mammals off NW Africa and reveal unique trophic niches for two globally threatened species.
Stable isotope abundances of carbon (δ13C) and nitrogen (δ15N) in the bone of 13 species of marine mammals from the northwest coast of Africa were investigated to assess their positions in the local trophic web and their ...
Fenología del anillo de crecimiento de Pinus uncinata Ramond y Pinus sylvestris L. en un gradiente altitudinal en los Pirineos Centrales
En el presente trabajo, describimos el desarrollo y la estructura del anillo anual de crecimiento de Pinus uncinata Ramondy Pinus sylvestris L. en un gradiente altitudinal en los Pirineos centrales. Medimos mensualmente ...
Primula hirsuta All. als Pirineus Orientals
Confirmem la presència d'aquesta espècie als Pirineus Orientals basant-nos en noves recol leccions i observacions de camp. A més a més, presentem una revisió crítica de les citacions anteriors i dels testimonis d'herbari ...
Contribucion al conocimiento de la flora briofitica del sureste de EspaÑa
Este trabajo da cuenta del hallazgo de briôfitos obtenidos en diversas exploraciones por las provincias de Murcia, Albacete, Almeria y Jaén, singularmente en las Sierras de Los Filabres, Calar del Mundo, El Carche y La ...
Contribucion al estudio de los briofitos acuaticos de lagunas y charcas de España
Se citan las especies de briófitos obtenidas en muéstreos limnológicos generales de lagunas y charcas de España y se describen someramente las 28 localidades donde éstas fueron halladas. Drepanocladus aduncus aparece como ...
Seguiment temporal de la reserva marina de les Illes Medes. Informe anual. Any 1997
L'objectiu que marca la Llei 19/1990, de 10 de desembre del Parlament de Catalunya és la conservació de la fauna i flora dels fons marins de les illes Medes. I l¿objectiu dels treballs de seguiment que, des del 1990, ve ...
Do mediterranean genera not included in Tachet et al. (2002) have mediterranean trait characteristics?
Do mediterranean genera not included in Tachet et al. 2002 have mediterranean trait characteristics? Multiple-trait databases are increasingly used in community ecology in different regions of the world. In Europe, Tachet ...
The dominant seagrass herbivore Sarpa salpa shifts its shoaling and feeding strategies as they grow
The relative benefits of group foraging change as animals grow. Metabolic requirements, competitive abilities and predation risk are often allometric and influenced by group size. How individuals optimise costs and benefits ...
Toxoplasma gondii infection in seagull chicks is related to the consumption of freshwater food resources
Understanding the spread of Toxoplasma gondii ( T . gondii ) in wild birds, particularly in those with opportunistic feeding behavior, is of interest for elucidating the epidemiological involvement of these birds in the ...
Differential trophic traits between invasive and native anuran tadpoles
How trophic resources are managed is a key factor in our understanding of the success of invasive species. In amphibians that usually occupy ephemeral ponds, the capacity to acquire resources and food selection are especially ...
Avaluació de les comunitats algals de les Illes Medes i la costa del Montgrí. Any 2002
Podeu consultar l'Informe complet a: http://hdl.handle.net/2445/23672
Dissecting Rice Pearl Character, an Important Added Value in High-Quality Temperate Mediterranean Japonica Cultivars
Rice holds an important sociocultural meaning in Europe, and especially in the gastronomy of its Mediterranean regions, as it is used for world-famous recipes such as Risotto in Italy and Paella in Spain. Paella is prepared ...
Food web of a tropical high mountain stream: effects of nutrient addition
In order to define the effect of nutrient enrichment on trophic webs in an Andean mountain stream we performed an experiment using stable isotope ratios (δ15N and δ13C) to analyze different trophic compartments: 1) basal ...
Distribution of trace elements in benthic infralittoral organisms from the Western Antarctic Peninsula reveals no latitudinal gradient of polution
Antarctica is considered one of the most pristine regions on Earth, but evidences of global and local anthropogenic pollution exist. Chromium (Cr), lead (Pb) and mercury (Hg) are bioaccumulated and sometimes biomagnified ...
Aproximació molecular a l'estudi de l'home
The application of molecular studies to reconstruct the history of the human species has become a powerful to01 for ascertaining either the evolutionary pathway or the timing of evolutionary events. Both long term and short ...
SIVIM Alpine - Database of high-mountain grasslands in the Iberian Peninsula
SIVIM Alpine (GIVD ID: EU-00-034) is a thematic database focused on vegetation plots from alpine grasslands of the Iberian Peninsula. The main aim of the database is to centralize historical and new vegetation plots of ...
Concerted changes in N and C primary metabolism in alfalfa (Medicago sativa) under water restriction
Although the mechanisms of nodule N2 fixation in legumes are now well documented, some uncertainty remains on the metabolic consequences of water deficit. In most cases, little consideration is given to other organs and, ...
Effect of nitrogen and phosphorus supply on growth, chlorophyll content and tissue composition of the macroalga Chaetomorpha linum (O.F. Mull), Kutz, in a Mediterranean Coastal Lagoon
The effect of dissolved nutrients on growth, nutrient content and uptake rates of Chaetomorpha linum in a Mediterranean coastal lagoon (Tancada, Ebro delta, NE Spain) was studied in laboratory experiments. Water was enriched ...
Precisions sobre la població i l'estatus de Carex brevicollis (Cyperaceae) a Catalunya.
New data are provided on the unique population of <i>Carex brevicollis</i> in the Eastern Pyrenees, protected by Catalan legislation.
Notes sobre monocotiledonies
Notas nomenclaturales y taxonómicas sobre monocotiledóneas. resultado de los trabajos en curso sobre la 'Flora dels Països Catalans'
