A systernatic list of the echinoderrns from Cabo Pulmo reef, Pacific coast of México (23.5° N), is presented. Data were obtained from field surveys (1986 to 1993), and comp1emented with 1iterature searches. A total of 38 species have been reported at Cabo Pulmo, but only 25 of them were actual1y observed in the reef during our visits. This finding suggests that cornmunity structure and composition have changed in important ways since 1943, date of the first reports of echinoderrns for the locality.
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El significativo rol del turismo en la economía, ha llevado a una fuerte intensificación de la competencia internacional, nacional y regional de los destinos turísticos. Recociendo que la competitividad es fruto de un conjunto de factores que interactúan para mejorar el nivel de crecimiento y desarrollo económico, es indispensable implementar políticas que promuevan los destinos turísticos de forma objetiva, atendiendo integralmente las necesidades de desarrollo, calidad de vida y aprovechamiento sustentable de los recursos naturales y culturales. Aunque México ha mostrado un avance significativo en el índice de competitividad de viajes y turismo publicado por el Foro Económico Mundial, el proceso de planeación turística debe impulsar un balance entre la priorización de la actividad y la sustentabilidad de los destinos. En este orden de ideas, los estudios neoinstitucionales muestran argumentos teóricos y empíricos convincentes para resaltar la importancia de las instituciones en la conducción del sector turístico.
The Mexican state of Baja California Sur has a high rate of population growth. It is also one of the states that are most vulnerable to climate change. Due to its location on the southern side of a roughly 900-mile long peninsula, and its natural separation from mainland Mexico, its power transmission networks are completely independent of the rest of the country. Thus, nearly all the energy used to generate electricity must be shipped to the state in the form of fossil fuels. The importation of energy supplies from the mainland results in higher costs for the state than in other areas of the country, causes greater environmental damage, and prevents a steady supply of energy to the state. This study's objective is to propose a sustainable management model and to provide a reference to feasible sites available that could serve the Loreto region. An analytical model has been developed with multiple criteria and geographic information systems. This will allow for a wide range of spatial analysis of information covering the calculation of slopes, orientation, irradiation, infrastructure, etc. The municipal region of Loreto has roughly 288 square kilometres of land deemed suitable for the installation of solar plants. This area comprises 1.62% of the municipality. In 2016, the maximum electrical power demand for the entire state of Baja California Sur was 628 Megawatts per hour according to the Federal Electricity Commission (CFE). Loreto's electrical capacity is currently 17 MWh. Based on calculations that one photovoltaic plant located on two acres of land can produce one MWh, solar plants in the region could, theoretically, produce up to 14,403.35 MWh. Clearly, this potential capacity would be well above the demands of the municipality, which encompasses 3.8% of the state territory. Keywords: Analysis, Capital of The Californias, Gis, Loreto, Multi-Criteria, Solar Radiation INTRODUCTIONIn its Executive Summary of 2015, the International Energy Agency highlights the significant increase in the generation of renewable energy from non-fossil sources in the world. Renewable energy currently makes up 19% of the total share of generated global energy. This percentage reflects the large investments made in renewables in 2014, of 270,000 million dollars (270 billion USD). It is estimated that by 2030, global demand for energy will increase by 34%. However, most of the world's energy production -80% -is still expected to come from fossil fuels [1]. As a result, significant -and dangerous -levels of carbon emissions will continue to be produced in the years ahead. To reduce emissions, a rapid development of renewable energy production around the world is underway and reflects profound strategic changes in the way energy systems are now being produced. These important changes increasingly focus on creating diverse, efficient, and sustainable energy systems. In addition, the commitments made at the Kyoto Summit, to mitigate climate change through the reduction of carbon emissions, have yet to be fully implemented.Mex...
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