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Documents de recerca 19 registres trobats  anterior11 - 19  anar al registre: La cerca s'ha fet en 0.04 segons. 
11.
31 p, 767.0 KB Effects of past landscape and habitat changes in plant invasion provide evidence of an invasion credit / Clotet Fons, Maria ; Pino i Vilalta, Joan (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Basnou, Corina ; Universitat Autònoma de Barcelona. Facultat de Biociències
Habitats differ in the invasion degree due to habitat properties and current spatial context. Historical context effects (i. e. land use change legacy) have been little studied and can be modulated by the invasion credit (the delayed increase in habitat invasion after changes in the land use). [...]
2014  
Registre complet - Creative Commons
12.
27 p, 868.5 KB Ecology predicts life history evolution in birds / Unzeta Lloret, Mar ; Sol, Daniel, tut. (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Universitat Autònoma de Barcelona. Facultat de Biociències
Although a number of studies describe current evolutionary patterns concerning life-history evolution, how historical changes in the way organisms interact with their environment have shaped life-history evolution still remains unresolved. [...]
2013  
Registre complet - Creative Commons
13.
26 p, 977.5 KB Disentangling the probability of large fire occurrence in Mediterranean forests : management guidelides from a multiscale approach / Lasheras Álvarez, Laura ; Brotons, Lluís ; Gil-Tena, A ; Duane Bernedo, Andrea ; Universitat Autònoma de Barcelona. Facultat de Biociències
Fire is one of the main disturbances in Mediterranenan ecosystems. In the recent decades, in Catalonia (NE Spain), the number of fires has decreased while burnt area has increased. This is related to changes in land use, climate and fire suppression policies which influenced horizontal and vertical fuel continuity. [...]
2014  
Registre complet - Creative Commons
14.
42 p, 3.5 MB Drought-induced effects in coexisting Mediterranean shrubs in relation to species' bioclimatic niche / Sapés de Moreta, Gerard ; Lloret Maya, Francisco, dir. (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Universitat Autònoma de Barcelona. Facultat de Biociències
Climate-induced drought is one of the principal factors altering plant community dynamics and composition as well as species' geographic distributions in the Mediterranean basin. The use of bioclimatic models that consider both bioclimatic conditions and species' geographic distributions to predict potential scenarios under these climatic conditions have recently become extensively developed. [...]
2013  
Registre complet - Creative Commons
15.
38 p, 1.3 MB Brain size and evolutionary diversification in birds / Sayol, Ferran ; Sol, Daniel, dir. (Centre de Recerca Ecològica i d'Aplicacions Forestals) ; Universitat Autònoma de Barcelona. Facultat de Biociències
The role of behavior in evolution remains controversial, despite that some ideas are over 100 years old. Changes in behavior are generally believed to enhance evolution by exposing individuals to new selective pressures and by facilitating range expansions. [...]
2013  
Registre complet - Creative Commons
16.
39 p, 3.5 MB Invasive populations of Senecio pterophorus are neither more productive nor more plastic than the native populations / Colomer Ventura, Ferran ; Castells, Eva, tut. ; Martínez Vilalta, Jordi, 1975-, tut. (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Universitat Autònoma de Barcelona. Facultat de Biociències
Successful plant invaders may have specific morphological and physiological traits that promote invasion in a new habitat. The Evolution of Increased Competitive Ability (EICA) hypothesis predicts that plants released from natural enemies in the introduced habitats are more competitive and perform better than plants from the native populations. [...]
2013  
Registre complet - Creative Commons
17.
27 p, 8.1 MB Response of fine root respiration to variations in biotic and abiotic factors in a mixed Mediterranean forest affected by drought-induced secondary succession / Pereira Blanco, Eva ; Lloret Maya, Francisco (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Curiel Yuste, Jorge ; Barba, Josep ; Universitat Autònoma de Barcelona. Facultat de Biociències
Understanding the factors controlling fine root respiration (FRR) at different temporal scales will help to improve our knowledge about the spatial and temporal variability of soil respiration (SR) and to improve future predictions of CO2 effluxes to the atmosphere. [...]
2014  
Registre complet - Creative Commons
18.
39 p, 1.4 MB Impacts of climate change on water resources in the Mediterranean basin : a case study in Catalonia, Spain / Pascual Sánchez, Diana ; Retana Alumbreros, Javier, dir. (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Universitat Autònoma de Barcelona. Facultat de Biociències
Most climate change projections show important decreases in water availability in the Mediterranean region by the end of this century. We assess those main climate change impacts on water resources in three medium-sized catchments with varying climatic conditions in north-eastern Spain. [...]
2014  
Registre complet - Creative Commons
19.
37 p, 724.7 KB Decrease in the diversity of pyrrolizidine alkaloids of Senecio pterophorus after invasion / Sánchez González, Alejandro ; Castells, Eva, tut. ; Universitat Autònoma de Barcelona. Facultat de Biociències
Pyrrolizidine alkaloids (PAs) are N-based plant secondary metabolites that function as chemical defenses against vertebrate and invertebrate herbivores. PAs can be highly variable at intraspecific level, both in their absolute and relative concentrations. [...]
2014  
Registre complet - Creative Commons

Documents de recerca : 19 registres trobats   anterior11 - 19  anar al registre:
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