Diversidad Florística De Las Terrazas Costeras De La Reserva De La Biosfera Baconao. Propuesta De Conservación

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Diversidad Florística De Las Terrazas Costeras De La Reserva De La Biosfera Baconao. Propuesta De Conservación Diversidad Florística de las Terrazas Costeras de la Reserva de la Biosfera Baconao. Propuesta de conservación Luz Margarita Figueredo Cardona Programa de Doctorado Cooperado Desarrollo Sostenible del Bosque Tropical: Manejos Forestal y Turístico Tesis en opción al grado científico de Doctor en Ciencias DIVERSIDAD FLORÍSTICA DE LAS TERRAZAS COSTERAS DE LA RESERVA DE LA BIOSFERA BACONAO. PROPUESTA DE CONSERVACIÓN. Aspirante: MSc. Luz Margarita Figueredo Cardona Centro Oriental de Ecosistemas y Biodiversidad (BIOECO) CITMA, Santiago de Cuba Cuba Directores: Dr. Orlando Joel Reyes Domínguez Investigador Titular BIOECO, Cuba Dr. Antonio Escarré Esteve Catedrático de Universidad Universidad de Alicante, España 2015 DEDICATORIA A mi abuela Luz Inesperada quien no está entre nosotros, pero sí en mi corazón. AGRADECIMIENTOS A mi madre, por su amor, su apoyo constante e incondicional y sin el cual no hubiera sido posible el éxito de esta investigación. A mi hija, por su paciencia y comprensión, por dejarme ser su ejemplo en esfuerzo, sacrificio personal y dedicación profesional, por el tiempo insuficiente que le dediqué durante los años de trabajo, los cuales le serán retribuidos con creces para su mejor formación académica y moral. A mi hermana, por estar ahí en las buenas y en las malas, ser una excelente hermana y amiga. A mi abuelo Mingo, por malcriarme y ayudarme siempre. A mi esposo, por estar y apoyarme cuando más lo necesité. A mi padre, por confiar en mí y alentarme a seguir adelante en esta carrera, quien junto a Esther me animó a superarme siempre. Al resto de mi familia, mi tío René, mi abuela Margarita, mi tía Marlene, mis primos, por todo su amor y cariño. A mis tutores, Joel y Antonio, por aceptarme como su alumna, por haberme transmitido sus experiencias, por ser ejemplo de investigadores y maestros consagrados a la actividad científica, por ser magníficos seres humanos. A Lourdes, la esposa de Antonio y su familia quienes me acogieron cariñosamente como un miembro más. A Félix Acosta Cantillo, mi inseparable compañero de trabajo de campo, quien me enseñó y dispuesto colaboró con esta investigación. También apoyado por Josefina Blanco y Consuelo Martínez. A Gustavo Polanco, Yadila Martínez y Sonia Rosete, por ser excelentes amigos, mis hermanos, por estar cuando más los necesité, por alentarme y apoyarme en todo momento. A Euclides Fornaris, por su colaboración en la elaboración de los mapas de vegetación y a Alberto Beyris, por el mapa de ubicación del área de estudio; con especial énfasis a Euclides por su paciencia, su preciado tiempo y sus aportes al documento de tesis. A Luis Orlando Álvarez, por su contribución al estudio del bosque semideciduo. A mis amigos José Pérez, María Elena Potrony, Rosa Digna Gutiérrez, Rossana Carrillo, Roxana Cruz, Roberto Esparraguera, Arturo Salmerón, quienes me apoyaron y alentaron en todo momento. A Emelina Martínez, por su preocupación constante por mi alimentación, mis riñones y mi investigación. A Dalia Salabarría, quien siempre estuvo pendiente de que no cejara en este empeño. A mis compañeros del departamento de Botánica, Abelito, Rosa María, Yenisey, Miguel Ángel, Josefina, Motito, Yoira, Maricel, Consuelo, Dened y Kesia, por acompañarme todos estos años. A los choferes que me acompañaron durante las expediciones de campo. A los trabajadores de BIOECO que de una forma u otra me apoyaron y colaboraron. Luz M. Figueredo C. Diversidad florística y conservación de las costas de Baconao ÍNDICE INTRODUCCIÓN ................................................................................................................... 1 CAPÍTULO 1. ÁREA DE ESTUDIO ....................................................................................... 9 1.1. Selección del área de estudio .................................................................................... 9 1.2. Caracterización del área de estudio ......................................................................... 11 1.2.1. Geología ........................................................................................................... 11 1.2.2. Geomorfología y relieve .................................................................................... 12 1.2.3. Clima ................................................................................................................ 12 1.2.4. Suelos .............................................................................................................. 13 1.2.5. Hidrología ......................................................................................................... 13 1.2.6. Regionalización fitogeográfica .......................................................................... 14 CAPÍTULO 2. REVISIÓN BIBLIOGRÁFICA 2.1. Antecedentes de estudios florísticos y de vegetación .............................................. 15 2.1.1. Estudios florísticos en la zona costera de Baconao .......................................... 17 2.1.2. Estudios de vegetación en la zona costera de Baconao ................................... 18 2.1.3. Cartografía vegetal ........................................................................................... 20 2.1.4. Plantas C3, C4 y CAM ....................................................................................... 21 2.1.5. Aspectos fitogeográficos................................................................................... 28 2.2. Sucesiones ecológicas ............................................................................................. 30 2.2.1. Aspectos conceptuales sobre sucesión ecológica ............................................ 30 2.2.2. Antecedentes de estudios sucesionales a nivel mundial ................................... 33 2.2.3. Antecedentes de los estudios sucesionales en Cuba ....................................... 35 2.3. Objetos focales de conservación y su identificación ................................................. 37 2.4. Conservación ........................................................................................................... 39 2.4.1. Determinación del grado de amenaza de las especies, el endemismo, la diversidad y la sinantropía, como indicadores de la necesidad de la conservación ............................................................................ 39 2.4.2. Amenazas para la conservación de la biodiversidad ......................................... 41 2.4.3. Establecimiento de prioridades de conservación .............................................. 44 2.4.4. Conservación de la diversidad florística en la reserva de la biosfera Baconao ............................................................................................... 46 CAPÍTULO 3. MATERIALES Y MÉTODOS 3.1. Caracterización de la flora y la vegetación ............................................................... 49 3.1.1. Caracterización de la flora ................................................................................ 49 BIOECO i Luz M. Figueredo C. Diversidad florística y conservación de las costas de Baconao 3.1.1.1. Determinación de los recursos forestales ................................................ 52 3.1.1.2. Estudio etnobotánico en las comunidades de Sigua y Verraco ................. 53 3.1.2. Caracterización de la vegetación ...................................................................... 54 3.1.2.1. Caracterización de la composición y estructura horizontal del bosque semideciduo micrófilo de la reserva ecológica Siboney-Juticí .............. 55 3.2. Descripción de los estadios sucesionales ................................................................ 56 3.3. Selección de los principales valores de conservación e identificación de objetos focales de conservación ........................................................ 58 3.4. Propuesta de conservación ...................................................................................... 61 3.4.1. Identificación de las principales amenazas para la conservación ..................... 61 3.4.1.1. Presencia de especies invasoras .............................................................. 61 3.4.1.2. Dispersión de Vachelia macracantha en el bosque semideciduo micrófilo ....................................................................... 61 3.4.1.3. Disminución de la superficie ocupada por la vegetación original ............... 62 3.4.2. Establecimiento de niveles de prioridad para la conservación .......................... 62 3.4.3. Propuesta de acciones de conservación .......................................................... 62 CAPÍTULO 4. FLORA Y VEGETACIÓN DE LAS TERRAZAS COSTERAS DE LA RESERVA DE LA BIOSFERA BACONAO 4.1. Caracterización de la flora........................................................................................ 65 4.1.1. Composición florística ....................................................................................... 65 4.1.2. Endemismo ...................................................................................................... 67 4.1.3. Especies amenazadas ...................................................................................... 70 4.1.4. Tipos biológicos ................................................................................................ 71 4.1.4.1. Formas de vida ......................................................................................... 71 4.1.4.2. Tipos fotosintéticos: Plantas C3, C4 y CAM ............................................... 72 4.1.4.2.1. Resultados de δ13C ..........................................................................
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