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This paper analyzes the implementation of corporate sustainability strategies (CSS) in hotels, identifying key factors and practices as perceived by middle-managers. Using qualitative methods, we conducted initial and in-depth interviews with owners, top-managers, and 37 middle-managers from various departments of a hotel chain in the Canary Islands. An existing literature-informed CSS implementation framework guided our analysis, revealing nine key factors that act as drivers, barriers, or both to CSS implementation. We identified crucial practices including paper-use reduction, employee well-being, plastic-use reduction, energy efficiency, recycling, water management, air quality, social contribution, food waste management, and green chemicals, noting varying relevancies across departments. Particularly, work-wellbeing, plastic-use reduction, and energy efficiency showed the highest alignment with CSS. Our findings offer insights into the practical application of CSS, underscoring the importance of tailoring department-specific practices to overarching sustainability goals to bolster organizational sustainability strategies. • Corporate sustainability strategy (CSS) drivers and practices are strongly related to Human Resource Management. • Key drivers for CSS implementation include communication and training, work environment, and corporate commitment and support. • Key barriers of CSS implementation include guest behavior and external issues such as the pandemic crisis. • Relevance and alignment of key practices vary among departments, which need tailored strategies based on their attributes. • Paper-use reduction emerges as the main key practice of CSS, followed by work wellbeing and plastic-use reduction. [ABSTRACT FROM AUTHOR]

Active hotspot volcanism is the surface expression of ongoing dynamic subsurface changes, such as the generation, transport, and stalling of magmas within the upper mantle and crust. Magmatic influx and migration affects local stress patterns in the crust and lithospheric mantle, which influences seismic anisotropy. A better understanding of those patterns helps improve robustness of models forecasting the likelihood of an eruption and prolonged seismicity, with detailed studies being required to observe the significant variations that can occur on small spatial and temporal scales. Here, we investigate seismic anisotropy before, during and after volcanic eruptions. We use local seismicity around El Hierro and La Palma, the two westernmost islands in the Canaries and sites of the most recent volcanic eruptions in the archipelago. We obtained 215 results in El Hierro during and after the 2011/2012 eruption with five three-component broadband seismic stations and 908 results around the 2021 eruption in La Palma with two three-component broadband stations. On La Palma, the majority of seismicity and splitting results are recorded during the eruption and simultaneous deflation of the island. Seismicity locations do not change significantly and fast shear wave polarisation direction is mostly constant, but some variation can be attributed to changes in the magmatic plumbing system. On El Hierro, the general radial pattern reflects stresses induced by the overall uplift of the island during multiple magma intrusion events. Temporal subsets reveal significant variations in location and depth of the events, as well as significant variations in fast polarisation direction caused by ongoing dynamic changes of under- and overpressurisation. An increase of results starting in 2018 hints towards renewed subsurface activity within deeper parts of the plumbing system, affecting the rate of overall seismicity but not any vertical movement of the island. [ABSTRACT FROM AUTHOR]

The human colonization of the Canary Islands represents the sole known expansion of Berber communities into the Atlantic Ocean and is an example of marine dispersal carried out by an African population. While this island colonization shows similarities to the populating of other islands across the world, several questions still need to be answered before this case can be included in wider debates regarding patterns of initial colonization and human settlement, human-environment interactions, and the emergence of island identities. Specifically, the chronology of the first human settlement of the Canary Islands remains disputed due to differing estimates of the timing of its first colonization. This absence of a consensus has resulted in divergent hypotheses regarding the motivations that led early settlers to migrate to the islands, e.g., ecological or demographic. Distinct motivations would imply differences in the strategies and dynamics of colonization; thus, identifying them is crucial to understanding how these populations developed in such environments. In response, the current study assembles a comprehensive dataset of the most reliable radiocarbon dates, which were used for building Bayesian models of colonization. The findings suggest that i) the Romans most likely discovered the islands around the 1st century BCE; ii) Berber groups from western North Africa first set foot on one of the islands closest to the African mainland sometime between the 1st and 3rd centuries CE; iii) Roman and Berber societies did not live simultaneously in the Canary Islands; and iv) the Berber people rapidly spread throughout the archipelago. [ABSTRACT FROM AUTHOR]