Biologia Evolutiva, Ecologia i Ciències Ambientals: Envíos recientes
Mostrando ítems 81-100 de 1903
First description of a new worm bait fishery in the NW Mediterranean Sea
Most commercial clam stocks in the NW Mediterranean Sea have collapsed over the last few decades and, as a result, most clam dredge fishermen have been forced to leave the fishing sector. Recently, in order to sustain their ...
Seguiment temporal de la reserva marina de les Illes Medes - I. Informe anual. Any 1995
Els seguiments o monitoritzacions, com els empenys humans, tenen per tret diferencial els alts i baixos, les dents de serra. I aixó, no només és vàlid per al comportament de les variables monitoritzades, sino també per als ...
Responses of a native and a recent invader snail to warming and dry conditions: the case of the lower Ebro River
Aquatic habitats have been highly modified by human actions that reduce their native diversity and create conditions suitable for tolerant alien species. Pomacea maculata was detected in 2009 in both the alluvial plain and ...
Estudios sobre suelos y vegetacion del Delta del Llobregat
Con motivo de un estudio técnico edafobotánico realizado para la Confederación Hidrográfica del Pirineo Oriental se han recogido numerosos datos sobre suelos y vegetación del delta del Llobregat, algunos de los cuales ...
An Enzymatically hydrolyzed animal protein-based biostimulant (Pepton) increases salicylic acid and promotes growth of tomato roots under temperature and nutrient stress
Biostimulants may be particularly interesting for application in agricultural and horticultural crops since they can exert a growth-promoting effect on roots. This may be important for promoting longitudinal and lateral ...
Seasonal, sex-and plant size-related effects on photoinhibition and photoprotection in the dioecious mediterranean dwarf palm, Chamaerops humilis
Reelin regulates neuronal positioning and synaptogenesis in the developing brain, and adult brain plasticity. Here we used transgenic mice overexpressing Reelin (Reelin-OE mice) to perform a comprehensive dissection of the ...
Regime shifts of Mediterranean forest carbon uptake and reduced resilience driven by multidecadal ocean surface temperatures
The mechanisms translating global circulation changes into rapid abrupt shifts in forest carbon capture in semi‐arid biomes remain poorly understood. Here, we report unprecedented multidecadal shifts in forest carbon uptake ...
La vegetacion de los arrozales en la region mediterranea
En 1945 J. BORJA, estudiando la flora de la Ribera valenciana, observó la presencia en los arrozales de varias especies particulares que, estudiadas detenidamente, fueron determinadas como Ammannia coccínea Rottb., A. ...
Disparate effects of global-change drivers on mountain conifer forests: warming-induced growth enhancement in young trees vs. CO2 fertilization in old trees from wet sites
Theory predicts that the postindustrial rise in the concentration of CO2 in the atmosphere (ca ) should enhance tree growth either through a direct fertilization effect or indirectly by improving water use efficiency in ...
Natural Products from Antarctic Colonial Ascidians of the Genera Aplidium and Synoicum: Variability and Defensive Role
Ascidians have developed multiple defensive strategies mostly related to physical, nutritional or chemical properties of the tunic. One of such is chemical defense based on secondary metabolites. We analyzed a series of ...
Aportació al coneixement de l"herbari Trèmols de l"Institut Botànic de Barcelona.
The herbarium BC-Trèmols was created during the second half of the 19th century by the Catalan chemist and botanist Frederic Trèmols Borrell. Between 1930 and 1960, the technician Antoni Marcos carried out a thorough review. ...
Acerca de la vegetacion de Sauva Negra
A unos 40 Km. al norte de Barcelona se extiende, a una altitud variable entre los 700 y 1000 m., la altiplanicie del Moianés, formada principalmente por materiales margosos y calizos. Esta meseta, de superficie bastante ...
sPlot - a new tool for global vegetation analyses
Aims: Vegetation-plot records provide information on the presence and cover or abundance of plants co-occurring in the same community. Vegetation-plot data are spread across research groups, environmental agencies and ...
Monoamine oxidase A (MAOA) interaction with parenting practices on callous-unemotional traits in preschoolers
Background and Objectives: From a gene-by-environment perspective, parenting in interaction with the polymorphism in the Monoamine oxidase A (MAOA) gene (MAOA-uVNTR) might also be associated with increased callous-unemotional ...
Intrinsic climatic predictability affects ornamental coloration of adult males: Evidence for compensation among carotenoid- and melanin-based coloration
1. Ornamental coloration is frequently an honest signal of quality associated with sexual selection. While changes in average environmental conditions affect carotenoid-and melanin-based coloration, no evidence exists that ...
Ocean surface winds drive dynamics of transoceanic aerial movements
Global wind patterns influence dispersal and migration processes of aerial organisms, propagules and particles, which ultimately could determine the dynamics of colonizations, invasions or spread of pathogens. However, ...
Multiple stressors in Mediterranean freshwater ecosystems: The Llobregat River as a paradigm
Hydrological modifications drive other ecological stressors of freshwater ecosystems and interact with them. The present paper examines the relevance of hydrological disturbances resulting from global change by presenting ...
Some like it hot: temperature and acidification modulate larval development and settlement of the sea urchin Arbacia lixula
We studied the effects of temperature and pH on larval development, settlement and juvenile survival of a Mediterranean population of the sea urchin Arbacia lixula. Three temperatures (16, 17.5 and 19 °C) were tested at ...
Spawning behaviour of the Mediterranean dusky grouper Epinephelus marginatus (Lowe, 1834) (Pisces, Serranidae) in the Medes Islands Marine Reserve (NW Mediterranean; Spain)
Spawning of the Mediterranean dusky grouper Epinephelus marginatus (Lowe, 1834) was observed for the first time in summer 1996 during scuba diving surveys in the Medes Islands Marine Reserve (NW Mediterranean). Ten spawning ...
Cens de la colònia d'ardèids de les Illes Medes a l'any 2002
Podeu consultar l'Informe complet a: http://hdl.handle.net/2445/23675
