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  • 1
    Keywords: Forestry. ; Biogeography. ; Environmental management. ; Forestry. ; Biogeosciences. ; Environmental Management.
    Description / Table of Contents: Chapter 1 - Dendroecology investigation of Magnolia vovidesii, a threatened Mexican Cloud Forest tree species endemic to eastern Mexico -- Chapter 2 - Drought is a driving factor of seasonal growth of Pinus strobiformis Engelm. in northern Mexico -- Chapter 3 - Dendroecological studies with Cedrela odorata L., Northeastern Brazil -- Chapter 4 - Xylogenesis explains climate- growth relationships in a Mexican conifer -- Chapter 5 - Dendrochronological potential of tree species from America's rainiest region -- Chapter 6 - Potential of Tropical Dry Forest trees species: anatomy, chronologies and environment -- Chapter 7 - Tree-growth variations along environmental gradients in tropical montane forests of South America -- Chapter 8 - Forest dynamics in the Patagonian Andes: Lessons learned from dendroecology -- Chapter 9 - Historical fire regimes in high-elevation tropical forests -- Chapter 10 - Patterns of tree establishment following glacier-induced floods in southern Patagonia -- Chapter 11 - Dendrochronological reconstruction of Ormiscodes amphimone outbreaks in Nothofagus pumilio forests from Southern Patagonia, Argentina -- Chapter 12 - Dendroecology in Polylepis forests in the tropical Andes: modeling of the radial growth of the last centuries and its implications for its conservation -- Chapter 13 - Dendrochronological study of the xeric and mesic Araucaria araucana forests of northern Patagonia: implications for the Ecology and Conservation -- Chapter 14 - Dendroecology applied to silvicultural management in the Southern Patagonian forests: a case of study from an experimental forest in Tierra del Fuego, Argentina -- Chapter 15 - Reconstructing land use changes through ring-width variations in Nothofagus antarctica chronologies from Southern Patagonia -- Chapter 16 - Long-term decoupling between growth and water-use efficiency and its implications for the conservation of old-growth conifer forests in southern Chileong-term decoupling between growth and water-use efficiency and its implications for the conservation of old-growth conifer forests in southern Chile.
    Abstract: Latin America is a megadiverse territory hosting several hotspots of plant diversity and many types of forest biomes, ecosystems and climate types, from tropical rainforest to semi-arid woodlands. This combination of diverse forests and climates generates multiple responses to ecological changes affecting the structure and functioning of forest ecosystems. Recently, there have been major efforts to improve our understanding of such impacts on ecosystems processes. However, there is a dearth of studies focused on Latin-American forest ecosystems that could provide novel insights into the patterns and mechanisms of ecological processes in response to environmental stress. The abundance of “New World” tree species with dendrochronological potential constitutes an ideal opportunity to improve the ecological state of knowledge regarding these diverse forest types, which are often threatened by several impacts such as logging or conversion to agricultural lands. Thus, detailed information on the dendroecology of these species will improve our understanding of forests in the face of global change. Accordingly, this book identifies numerous relevant ecological processes and scales, ranging from tree species to populations and communities, and from both dendrochronological and dendroecological perspectives. It offers a valuable reference guide for the exploration of long-term ecological interactions between trees and their environmental conditions, and will foster further research and international projects on the continent and elsewhere.
    Type of Medium: Online Resource
    Pages: XVII, 381 p. 119 illus., 92 illus. in color. , online resource.
    Edition: 1st ed. 2020.
    ISBN: 9783030369309
    DDC: 634.9
    Language: English
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  • 2
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 6585-6587 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We performed a detailed study of the magnetization reversal in polycrystalline exchange-coupled NiO/Co bilayers over 10 decades of field sweep rate dH/dt for different NiO and Co thicknesses. For all sweep rates and thicknesses, the symmetry of the hysteresis loops shows that an identical pinning strength has to be overcome in both directions of the reversal. At low dH/dt the reversal is governed by domain wall displacement while domain nucleation is dominant at higher ones. The dH/dt at which the transition between the two regimes takes place depends on the relative thickness of the NiO and Co layers. It increases (decreases) when the Co (NiO) thickness is increased. Experimentally, it was found that the energy barrier varies linearly with the square root of the area corresponding to the activation (Barkhausen) volume which is consistent with a random walk model of the coupling between antiferromagnetic and ferromagnetic layers. The results can be explained in terms of a thermally activated switching of the NiO magnetization dragged by the Co reversal. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 7150-7152 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Due to the collective nature of the electronic interactions responsible for the appearance of ferromagnetic ordering, a strong influence of reduced dimensionality is to be expected in ultrathin magnetic films and heterostructures. In this article we review a number of experimental results covering several of those effects. For instance, the coercivity of ultrathin Co/Cu(111) films increases continuously up to ∼6 monolayer Co thickness. We show that this behavior is related to the thickness dependence of the Curie temperature of these low-dimensional samples. Moreover, magnetic anisotropy and interlayer exchange coupling are also strongly affected by the structural features. Because of their smaller interfacial roughness, films grown with the aid of a surfactant Pb layer exhibit perpendicular magnetization up to larger thicknesses than those grown without Pb. With respect to the exchange coupling, the first ones show oscillatory magnetic coupling and complete antiferromagnetic coupling for both perpendicular and parallel magnetization between Co layers, while for films grown without Pb there is always some amount of ferromagnetic coupling between Co layers. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 77 (2000), S. 889-891 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Epitaxial films grown by coevaporation of Co and Cu on Cu(111) were investigated by low-energy electron diffraction and surface magneto-optical Kerr-effect measurements. The films are dominantly face-centered-cubic stacked up to high Co concentrations and exhibit ferromagnetism. Their coercivity is significantly reduced compared to pure Co films produced by thermal Co deposition on Cu(111) independent of the use of Pb as a surfactant. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 0304-8853
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 0304-8853
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-0630
    Keywords: PACS: 68.35.Fx; 68.55.-a; 81.10.-h
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract. Interlayer diffusion in epitaxial systems with a high energy barrier at the atomic steps – the so-called Ehrlich–Schwoebel (ES) barrier – is strongly reduced. As a consequence of this, a continuous accumulation of roughness takes place during growth. This undesirable effect can be corrected by using surfactant agents. We have studied the influence of the ES barrier on the preparation of epitaxial films on Cu(111), and the surfactant effect of a monolayer of Pb.
    Type of Medium: Electronic Resource
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  • 8
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    PANGAEA
    In:  Supplement to: Sánchez-Salguero, Raúl; Camarero, J Julio; Rozas, Vicente; Génova, Mar; Olano, Jose M; Arzac, Alberto; Gazol, Antornio; Caminero, Leocadia; Tejedor, Ernesto; De Luis, Martin; Linares, Juan C (2018): Resist, recover or both? Growth plasticity in response to drought is geographically structured and linked to intraspecific variability in Pinus pinaster. Journal of Biogeography, 45(5), 1126-1139, https://doi.org/10.1111/jbi.13202
    Publication Date: 2023-09-02
    Description: Aim: We investigate the effects of the environmental and geographical processes driving growth resilience and recovery in response to drought inMediterraneanPinus pinasterforests. We explicitly consider how intra-specific variability modulates growth resilience to drought. Location: western Mediterranean basin Methods: We analyzed tree rings froma large network of 48 forests (836 trees) encompassing wide ecological and climatic gradients and including six provenances. To characterize the major constraints of P. pinaster growth under extremely dry conditions, we simulated growth responses to temperature and soil moisture using a process-based growth model coupled with the quantification of climate-growth relationships.Then, we related growth-resilience indices to provenance and site variables considering different drought events. Results: P. pinaster displayed strong variation in growth resilience across its distributional range, but common patterns were found within each provenance. Post-drought resilience increased with elevation and drier conditions but decreased with spring precipitation. Trees from dry sites were less resistant to drought but recovered faster than trees from wet sites. Main conclusions: Resilience strategies differed among tree provenances: wet forests showed higher growth resistance to drought, while dry forests presentedfaster growthrecovery, suggesting different impacts of climate warming on forest productivity.We detected geographicallystructured resilience patterns corresponding to different provenances,confirming high intra-specific variability in response to drought. This information should be included in species distribution models to simulate forest responses toclimate warming and forecasted aridification.
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 9
    Publication Date: 2023-09-02
    Keywords: A Capelada, Cedeira; Addeldal; Aizkorri; Albunuelas; Almijara-Alhama de Granada; Alto Tajo; Armuna; Avila 1; Avila 2; Bayubas; Bembrive-Beade, Vigo; Cazorla 1; Cazorla 2; Cazorla-Coto-Rios; Cazorla-Segura-LasVillas 1; Cazorla-Segura-LasVillas 2; Cazorla-Segura-LasVillas 3; Cazorla-Segura-LasVillas 4; Competa; Correlation; Despenaperros; Elevation of event; ES_ARMU; ES_AVI1; ES_AVI2; ES_BAYU; ES_CAPP; ES_CARP; ES_CAZI; ES_CAZJ; ES_CAZK; ES_CAZL; ES_COGP; ES_CORP; ES_DESP; ES_INSP; ES_MALP; ES_MCUP; ES_MEIP; ES_MIAM; ES_MIPP; ES_MOHO; ES_MURP; ES_PCA1; ES_PCA2; ES_PCA3; ES_PIAB; ES_PIAI; ES_PIAL; ES_PIAT; ES_PIBE; ES_PICO; ES_PIIS; ES_PIOA; ES_PISO; ES_PITR; ES_PRPP; ES_PSPP; ES_PVI1; ES_PVI2; ES_SHPP; ES_TEPI; ES_TRPP; ES_VALP; ES_VC2P; ES_VERP; ES_VIGP; ES_VLPI; Expressed Population Signal; Illa de Cortegada, Carril; Istán; Las Villas 1; Las Villas 2; Latitude of event; Location; Longitude of event; MA_MAPI; MA_PIMC; Marco da Curra; Mina Amparo 1; Mina Amparo 2; Monte Aloia; Monte Comunal de Meis; Monte de Verín, Laza; Monte de Vilapena, Trabada; Monte Insua, Camarinas; Moraz de Hornuez; Morocco; Muros; O Corgo; Ona; Pazo de Cartelos, A Barrela; PN Cazorla - Puerta de Segura; PN Sierra de Huetor; Prades; Provenance/source; Sensitivity; Sierra Bermeja; Site; Soria; Spain; Tejeda-Almijara; Time coverage; TREE; Tree ring sampling; Trevenque-Monachil; Valbona; Valle de Cabra; Valonsadero
    Type: Dataset
    Format: text/tab-separated-values, 384 data points
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  • 10
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    PANGAEA
    In:  Supplement to: Sánchez-Salguero, Raúl; Camarero, J Julio; Carrer, Marco; Gutiérrez, Emilia; Alla, Arben Q; Andreu-Hayles, Laia; Hevia, Andrea; Koutavas, Athanasios; Martínez-Sancho, Elisabet; Nola, Paola; Papadopoulos, Andreas; Pasho, Edmond; Toromani, Ervin; Carreira, José A; Linares, Juan C (2017): Climate extremes and predicted warming threaten Mediterranean Holocene firs forests refugia. Proceedings of the National Academy of Sciences of the United States of America, 114(47), E10142-E10150, https://doi.org/10.1073/pnas.1708109114
    Publication Date: 2023-12-30
    Description: Warmer and drier climatic conditions are projected for the 21st century; however, the role played by extreme climatic events on forest vulnerability is still little understood. For example, more severe droughts and heat waves could threaten quaternary relict tree refugia such as Circum-Mediterranean fir forests (CMFF). Using tree-ring data and a process-based model, we characterized the major climate constraints of recent (1950-2010) CMFF growth to project their vulnerability to 21st century climate. Simulations predict a 30% growth reduction in some fir species with the 2050s business as-usual emission scenario, whereas growth would increase in moist refugia due to a longer and warmer growing season. Fir populations currently subjected to warm and dry conditions will be the most vulnerable in the late 21st century when climatic conditions will be analogous to the most severe dry/heat spells causing dieback in the late 20th century. Quantification of growth trends based on climate scenarios could allow defining vulnerability thresholds in tree populations. The presented predictions call for conservation strategies to safeguard relict tree populations and anticipate how many refugia could be threatened by 21st century dry spells.
    Type: Dataset
    Format: application/zip, 31 datasets
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