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Resultats globals: 23 registres trobats en 0.02 segons.
Articles, 20 registres trobats
Documents de recerca, 3 registres trobats
Articles 20 registres trobats  1 - 10següent  anar al registre:
1.
17 p, 15.8 MB Last-century forest dynamics in a highland Pyrenean National Park and implications for conservation / Rull, Valentí (Institut Català de Paleontologia Miquel Crusafont) ; Blasco, Arnau (Universitat de Barcelona. Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals) ; Sigró, Javier (Universitat Rovira i Virgili. Centre en Canvi Climàtic) ; Vegas-Vilarrúbia, Teresa (Universitat de Barcelona. Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals)
Ecological records from before and after the creation of natural parks are valuable for informing conservation and management but are often unavailable. High-resolution paleoecological studies may bridge the gap and provide the required information. [...]
2024 - 10.3390/plants13081144
Plants, Vol. 13, issue 8 (2024) , art. 1144  
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2.
5 p, 536.2 KB The 'Anthropocene': alea iacta est : the proposal of the 'Anthropocene' as a new geological epoch has been submitted for formalization / Rull, Valentí (Institut Català de Paleontologia Miquel Crusafont)
Almost two and a half decades after its first appearance, the term 'Anthropocene' is widely used by many scholars as if it was already a well-defined formal epoch of the Geological Time Scale (GTS) but it is still an informal term and its precise definition remains uncertain. [...]
2024 - 10.1038/s44319-024-00065-1
Embo Reports, (January 2024)  
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3.
6 p, 1.5 MB A recent Cannabis pollen increase on the Iberian Pyrenees / Rull, Valentí (Institut Català de Paleontologia Miquel Crusafont) ; Vegas-Vilarrúbia, Teresa (Universitat de Barcelona. Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals)
The continuous, varved and absolutely dated sedimentary record of Lake Montcortès (Iberian Pyrenees) has provided evidence for a distinct and characteristic 20th century (1980s) increase in Cannabis pollen (20C) that persists today. [...]
2023 - 10.1016/j.scitotenv.2023.163947
Science of the total environment, Vol. 886 (August 2023) , art. 163947  
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4.
29 p, 11.2 MB A continuous Centennial Late Glacial-Early Holocene (15-10 cal kyr BP) Palynological Record from the Iberian Pyrenees and Regional Comparisons / Rull, Valentí (Institut Català de Paleontologia Miquel Crusafont) ; Blasco, Arnau (Universitat de Barcelona. Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals) ; Calero Tomas, Miguel Angel (Universitat de Barcelona. Departament de Geografia) ; Blaauw, Maarten (Queen's University Belfast. School of Natural and Built Environment) ; Vegas-Vilarrúbia, Teresa (Universitat de Barcelona. Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals)
This paper presents the first continuous (gap-free) Late Glacial-Early Holocene (LGEH) pollen record for the Iberian Pyrenees resolved at centennial resolution. The main aims are (i) to provide a standard chronostratigraphic correlation framework, (ii) to unravel the relationships between vegetation shifts, climatic changes and fire, and (iii) to obtain a regional picture of LGEH vegetation for the Pyrenees and the surrounding lowlands. [...]
2023 - 10.3390/plants12203644
Plants, Vol. 12, issue 20 (Oct. 2023) , art. 3644  
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5.
4 p, 2.7 MB Settlement and anthropization of the Azores Islands / Rull, Valentí (Institut Català de Paleontologia Miquel Crusafont)
2023 - 10.1111/jbi.14712
Journal of biogeography, (August 2023) , p. 1-4  
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6.
9 p, 1.9 MB Anticipation, Discovery and Serendipity in Quaternary Paleoecology: Personal Experiences from the Iberian Pyrenees / Rull, Valentí (Institut Català de Paleontologia Miquel Crusafont)
This essay is a personal insight based on my own experience in the Iberian Pyrenees, which addresses three situations common in paleoecological research, such as the verification of previously devised hypotheses (anticipation), the finding on unknown events in unstudied sites (discovery) and the finding of unexpected outputs in already known areas (serendipity). [...]
2023 - 10.3390/quat6030042
Quaternary, Vol. 6, Issue 3 (July 2023) , art. 42  
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7.
32 p, 3.4 MB Human Settlement and Landscape Anthropization of Remote Oceanic Islands : a Comparison between Rapa Nui (Pacific Ocean) and the Azores (Atlantic Ocean) / Rull, Valentí (Institut Català de Paleontologia Miquel Crusafont)
The flora and vegetation of oceanic islands have been deeply affected by human settlement and further landscape modifications during prehistoric and historical times. The study of these transformations is of interest not only for understanding how current island biotas and ecological communities have been shaped but also for informing biodiversity and ecosystem conservation. [...]
2023 - 10.3390/plants12112089
Plants, Vol. 12, Issue 11 (May 2023) , art. 2089  
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8.
Eocene/Oligocene global disruption and the revolution of Caribbean mangroves / Rull, Valentí (Institut Català de Paleontologia Miquel Crusafont)
In a recent paper, the author demonstrated that, in contrast with the prevailing view of eventual gradual regional differentiation from a hypothetical Cretaceous pantropical mangrove belt around the Tethys Sea, the Caribbean mangroves originated de novo in the Eocene after the evolutionary appearance of the first mangrove-forming tree species known for the region, the ancestor of the extant Pelliciera. [...]
2023 - 10.1016/j.ppees.2023.125733
Perspectives in plant ecology, evolution and systematics, Vol. 59 (June 2023) , art. 125733  
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9.
16 p, 1.4 MB Rise and fall of Caribbean mangroves / Rull, Valentí (Institut Català de Paleontologia Miquel Crusafont)
Mangrove forests, which are essential for the maintenance of terrestrial and marine biodiversity on tropical coasts and constitute the main blue‑carbon ecosystems for the mitigation of global warming, are among the world's most threatened ecosystems. [...]
2023 - 10.1016/j.scitotenv.2023.163851
Science of the total environment, Vol. 885 (August 2023) , art. 163851  
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10.
23 p, 4.7 MB Modern analogue approach applied to high-resolution varved sediments-a synthesis for lake Montcortès (Central Pyrenees) / Vegas-Vilarrúbia, Teresa (Universitat de Barcelona. Facultat de Biologia) ; Rull, Valentí (Consejo Superior de Investigaciones Científicas (Espanya). Institut de Ciències de la Terra Jaume Almera) ; Trapote, Maria del Carmen (Consejo Superior de Investigaciones Científicas (Espanya). Institut de Ciències de la Terra Jaume Almera) ; Cao, Min (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Rosell Melé, Antoni (Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambientals) ; Buchaca, Teresa (Centre d'Estudis Avançats de Blanes) ; Gomà, Joan (Universitat de Barcelona. Facultat de Biologia) ; López, Pilar (Universitat de Barcelona. Facultat de Biologia) ; Sigró, Javier (Universitat Rovira i Virgili. Centre en Canvi Climàtic (C3)) ; Safont, Elisabet (Universitat de Barcelona. Facultat de Biologia) ; Cañellas-Boltà, Núria (Consejo Superior de Investigaciones Científicas (Espanya). Institut de Ciències de la Terra Jaume Almera) ; Garcés-Pastor, Sandra (Universitat de Barcelona. Facultat de Biologia) ; Giralt, Santiago (Consejo Superior de Investigaciones Científicas (Espanya). Institut de Ciències de la Terra Jaume Almera) ; Corella, Juan Pablo (Centre National de la Recherche Scientifique. Universite Grenoble Alpes (France)) ; Pérez-Zanón, Núria (Universitat Rovira i Virgili. Centre en Canvi Climàtic (C3))
In Quaternary paleosciences, the rationale behind analogical inference presupposes that former processes can be explained by causes operating now, although their intensity and rates can vary through time. [...]
2020 - 10.3390/quat3010001
Quaternary, Vol. 3, Issue 1 (March 2020) , art. 1  
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Articles : 20 registres trobats   1 - 10següent  anar al registre:
Documents de recerca 3 registres trobats  
1.
56 p, 854.8 KB Financial frictions, asset prices, and the Great Recession / Huo, Zhen ; Ríos Rull, José Víctor
We study financial shocks to households' ability to borrow in an economy that quantitatively replicates U. S. earnings, financial, and housing wealth distributions and the main macro aggregates. Such shocks generate large recessions via the negative wealth effect associated with the large drop in house prices triggered by the reduced access to credit of a large number of households. [...]
The ADEMU Working Paper Series is being supported by the European Commission Horizon 2020 European Union funding for Research & Innovation, grant agreement No 649396.
2018 (ADEMU Working Paper Series ; 110)  
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2.
221 p, 8.4 MB Paleoecology of the southern Gran Sabana (SE Venezuela) since the last glacial to the present / Montoya Romo, Encarnación ; Rull, Valentí, dir. (Institut Botànic de Barcelona) ; Granzow de la Cerda, Iñigo, dir. (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia) ; Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia
This thesis is aimed to study the paleoecology of the southern Gran Sabana region (GS; SE Venezuela) since the Late Glacial to the present. This region is characterized nowadays by the occurrence of large extent of savannas in a climate suitable for rainforests. [...]
El presente trabajo está centrado en la paleoecología de la región sur de la Gran Sabana (GS; SE Venezuela) desde el Tardiglacial hasta el presente. Esta región se caracteriza hoy en día por la presencia de sabanas en un clima propicio para el desarrollo de bosques. [...]
[Barcelona] : Universitat Autònoma de Barcelona, 2012  
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3.
207 p, 5.4 MB Escalfament i biologia de la conservació a les Terres Altes de la Guayana: paleoecologia, biogeografia i modelització SIG / Nogué Bosch, Sandra ; Rull, Valentí, dir. (Institut Botànic de Barcelona) ; Vegas Vilarrúbia, Teresa, dir. (Universitat de Barcelona. Departament d'Ecologia) ; Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia
Aquesta tesi, usa l'estudi combinat del passat i del present per modelitzar el futur aplicat a les plantes vasculars de les Terres Altes de la Guayana, una remota zona del nord de Sud Amèrica conformada per un conjunt de muntanyes tabulars (conegudes com a tepuis), que presenten un grau d'endemisme excepcional. [...]
This thesis uses the combined study of past and present to the future applied to the vascular plants of the Guayana Highlands, a remote area of northern South America constituted by a set of tabular mountains (known as tepui ), with an exceptional degree of endemism. [...]
[Barcelona] : Universitat Autònoma de Barcelona, 2009  
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19 Rull, Valentí
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