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15 resultados encontrados para: AUTOR: Sáenz Arroyo de los Cobos, María Andrea
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1.
Tesis - Maestría
Análisis socio-cultural de los servicios ecosistémicos provistos por los manglares en la Reserva de la Biósfera La Encrucijada, sureste de México / Nadia Estenderlyn Reyes Arroyo
Reyes Arroyo, Nadia Estenderlyn (autora) ; Camacho Valdéz, Vera (directora) ; Infante Mata, Dulce María (asesora) ; Sáenz Arroyo de los Cobos, María Andrea (asesora) (1971-) ;
San Cristóbal de Las Casas, Chiapas, México : El Colegio de la Frontera Sur , 2020
Clasificación: TE/333.751609727 / R4
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
ECO010019907 (Disponible)
Disponibles para prestamo: 1
Resumen en español

Los manglares son ecosistemas de gran importancia para la biodiversidad global y los modos de vida locales al proveer servicios ecosistémicos (SE) esenciales a las poblaciones humanas. Actualmente los manglares están bajo una fuerte presión antropogénica que ocasiona su degradación, resultando en una disminución en el suministro de SE. La valoración socio-cultural es un enfoque que proporciona información relevante acerca de las percepciones de las comunidades sobre los SE y puede integrarse en futuras estrategias de conservación que contribuyan al bienestar de las poblaciones. El objetivo de esta investigación fue identificar, a través del enfoque de valoración socio-cultural, los principales SE provistos por los manglares en cuatro comunidades locales de la Reserva de la Biósfera La Encrucijada (REBIEN). Lo SE se identificaron a través de una revisión bibliográfica y se corroboraron con individuos de las comunidades a través del uso de paneles visuales. Se aplicó un cuestionario que proporcionó información sobre aspectos socio-demográficos de los informantes, su percepción en torno a las tendencias temporales del estado del manglar, los factores de degradación, los cambios en el bienestar en función de la degradación de los manglares, sus actitudes ante los procesos de degradación y su percepción sobre el valor de cada SE. Se identificaron 13 SE; los tres más valorados fueron los de protección ante fenómenos meteorológicos, el de pesca y el de regulación del clima.

Los principales factores de riesgo del manglar son la deforestación y quema, canalización de ríos y contaminación, ante los cuales la mayoría de los individuos no realiza ninguna acción. El estado de degradación del manglar incide en el bienestar de las comunidades afectando negativamente sus ingresos económicos y su alimentación. La información generada a través de este enfoque podría mejorar el diseño de las políticas públicas en la REBIEN y en otras regiones de México y el mundo, además de avanzar en la comprensión de los servicios ecosistémicos y su aporte en el bienestar de las poblaciones rurales de México.

Índice

Resumen y palabras clave
Capítulo I
Introducción
Capítulo II
Socio-cultural analysis of ecosystem services provided by mangroves in La Encrucijada Biosphere Reserve, southeastern Mexico
Capítulo III
Conclusiones generales
Literatura citada
Anexo fotográfico


2.
- Artículo de divulgación
*En hemeroteca, SIBE-San Cristóbal
Arrecifes de coral: la intrincada relación entre conservación y desarrollo
Sáenz Arroyo de los Cobos, María Andrea (autora) (1971-) ;
Disponible en línea
Contenido en: Este País Número 345 (enero 2020), páginas 30-33 ISSN: 0188-5405
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
60180-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-San Cristóbal
PDF
Resumen en: Español |
Resumen en español

La compleja relación entre los recursos de los ecosistemas y los servicios que las sociedades obtenemos de ellos, nos alerta para que cuidemos su equilibro y para evitar que el desarrollo humano nos destruya a todos. Podemos encontrar un caso emblemático de esta problemática en los arrecifes coralinos de nuestro país, en cómo los han afectado los desarrollos costeros descontrolados y en sus consecuencias. En esta ocasión, nuestra sección de medio ambiente analiza estas dificultades, así como algunas alternativas para su mitigación


3.
- Artículo con arbitraje
PDF PDF
Resumen en: Inglés |
Resumen en inglés

Community marine reserves are geographical areas closed to fishing activities, implemented and enforced by the same fishermen that fish around them. Their main objective is to recover commercial stocks of fish and invertebrates. While marine reserves have proven successful in many parts of the world, their success near important marine predator colonies, such as the California sea lion (Zalophus californianus) and the Pacific harbor seal (Phoca vitulina richardii), is yet to be analyzed. In response to the concerns expressed by local fishermen about the impact of the presence of pinnipeds on their communities’ marine reserves, we conducted underwater surveys around four islands in the Pacific west of the Baja California Peninsula: two without reserves (Todos Santos and San Roque); one with a recently established reserve (San Jeronimo); and, a fourth with reserves established eight years ago (Natividad). All these islands are subject to similar rates of exploitation by fishing cooperatives with exclusive rights. We estimated fish biomass and biodiversity in the seas around the islands, applying filters for potential California sea lion and harbor seal prey using known species from the literature. Generalized linear mixed models revealed that the age of the reserve has a significant positive effect on fish biomass, while the site (inside or outside of the reserve) did not, with a similar result found for the biomass of the prey of the California sea lion. Fish biodiversity was also higher around Natividad Island, while invertebrate biodiversity was higher around San Roque.

These findings indicate that marine reserves increase overall fish diversity and biomass, despite the presence of top predators, even increasing the numbers of their potential prey. Community marine reserves may help to improve the resilience of marine mammals to climate-driven phenomena and maintain a healthy marine ecosystem for the benefit of both pinnipeds and fishermen.


4.
- Capítulo de libro con arbitraje
*Solicítelo con su bibliotecario/a
From fishing fish to fishing data: the role of artisanal fishers in conservation and resource management in Mexico
Fulton, Stuart (autor) ; Hernández Velasco, Arturo (autor) ; Suarez Castillo, Alvin (autor) ; Fernández Rivera Melo, Francisco (autor) ; Rojo, Mario (autor) ; Sáenz Arroyo de los Cobos, María Andrea (autora) (1971-) ; Hudson Weaver, Amy (coaut.) ; Cudney Bueno, Richard (autor) ; Micheli, Fiorenza (autora) ; Torre, Jorge (autor) ;
Contenido en: Viability and sustainability of small-scale fisheries in Latin America and the Caribbean / Silvia Salas, María José Barragán Paladines Ratana Chuenpagdee, editors Cham, Switzerland : Springer International Publishing : Springer Nature, 2019 p. 151-175 ISBN:978-3-319-76077-3
Bibliotecas: Campeche
Cerrar
SIBE Campeche
59533-10 (Disponible)
Disponibles para prestamo: 1
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

Although, the involvement of artisanal fishing communities in conservation and management is now commonplace, their participation rarely goes beyond providing local and traditional knowledge to visiting scientists and managers. Communities are often excluded from ongoing monitoring, evaluation, and decision-making, even though these measures can have tremendous impacts on their liveli-hoods. For the past 17 years, we have designed, tested, and implemented a community-based monitoring model in three key marine ecosystems in Mexico: the kelp forests of Pacific Baja California, the rocky reefs of the Gulf of California, and the coral reefs of the Mesoamerican Reef System. This model is intended to engage local fishers in data collection by fulfilling two principal objectives: (1) to achieve science-based conservation and management decisions and (2) to improve liveli-hoods through access to knowledge and temporary employment. To achieve these goals, over 400 artisanal fishers and community members have participated in a nationwide marine reserve program. Of these, 222 fishers, including 30 women, have been trained to conduct an underwater visual census using SCUBA gear, and, to date, over 12,000 transects have been completed. Independent scientists periodically evaluate the training process and standards, and the data contribute to international monitoring efforts. This successful model is now being adopted by both civil society and government for use in different parts of Mexico and neighbouring countries. Empowering community members to collect scientific data creates responsibility, pride, and a deeper understanding of the ecosystem in which they live and work, providing both social and ecological benefits to the community and marine ecosystem.


5.
Artículo - Restringido
PDF
Resumen en: Inglés |
Resumen en inglés

Climate change is warming, deoxygenating, and acidifying the ocean at an unprecedented rate. However, responses to large-scale forcing are variable at relatively small spatial scales, creating marine microclimates. Marine microclimates can providespatial refuges (safe spaces) or local adaptation that may be harnessed to improve marine conservation and management. We analyze multiyear data sets within two fishing cooperatives in Baja California, Mexico, to quantify small-scale ocean variability, describe the degree to which this variability affects the abundance of species, and discuss the potential for marine microclimates to improve conservation and management efforts. We find that variation in ocean conditions and species abundances at scales of a few kilometers is striking and robust to large-scale climate forcing. We posit that incorporation of marine microclimates into fisheries management and conservation efforts can improve ecosystem sustainability by allowing localadaptation and maintenance of spatial refuges in the face of climate change.


Resumen en: Inglés |
Resumen en inglés

Holbox Island is a contemporary hotspot for global tourism. Here, long-term coastal exploitation and increasing anthropogenic activities threaten coastal habitats and resources. The impact of these activities is exacerbated by the lack of a management plan for the past 24 years, until October 2018. An interdisciplinary approach that integrates fishers’ traditional knowledge was used to determine how small-scale fisheries (SSF) exploitation contributed to the decline of resources over time. Open interviews with community members and surveys of fishers’ perspectives on fisheries overexploitation and practices as well as knowledge of fishing sites were collected. Over one hundred fishing sites were documented that were once very productive. Furthermore, over 40 species were highly fished (e.g., Carcharhinidae, Shpyrnidae, Pristidae, Cheloniidae) over the past 50 years. Survey results allowed for the construction of maps with baseline information of coastal exploitation. Additional data from archaeozoological remains (n= 545) of aquatic fauna identified 33 families of exploited taxa, of which finfish (e.g., Haemulidaea, Ariidae, Serranidae), sharks (e.g., Carcharhinidae), and sea turtles were the most abundant. Fishers and literature sources (n= 50) document Holbox’s contemporary issues, including overfishing, illegal fishing, and accelerated tourism development. These types of data (fishers’ perspectives, interdisciplinary literature, and archaeozoological data) were combined using historical ecology techniques and geospatial tools to obtain novel baseline information on SSF exploitation. This information is essential for conservation managers and scientists to meet the management needs of Holbox’s natural and social capital, which can assure the future provision of coastal ecosystem services to humans.


7.
Artículo
*Solicítelo con su bibliotecario/a
Sunken worlds: the past and future of Human-Made reefs in marine conservation
Castelló y Tickell, Sofia (autor) ; Sáenz Arroyo de los Cobos, María Andrea (autora) (1971-) ; Milner Gulland, Eleanor Jane (autora) ;
Contenido en: BioScience Vol. 69, no. 9 (September 2019), p. 725-735 ISSN: 1525-3244
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

Structures submerged in the sea by humans over millennia provide hard and longstanding evidence of anthropogenic influence in the marine environment. Many of these human-made reefs (HMRs) may provide opportunities for conservation despite having been created for different purposes such as fishing or tourism. In the middle of controversy around the costs and benefits of HMRs, a broad analysis of biodiversity and social values is necessary to assess conservation potential. This requires reframing HMRs as social–ecological systems, moving beyond comparisons with natural coral or rocky reefs to consider their roles as ecosystems in their own right; creating frameworks to track their type, number, size, units, location, characteristics, origins, social uses, and associated biodiversity locally and worldwide; and applying systematic assessment of conservation benefits in relation to stated conservation intentions. This integrative approach can catalyze learning, identify conservation opportunities, and inform positive management of HMRs into the future.


8.
Artículo
*Solicítelo con su bibliotecario/a
Local response to global uncertainty: insights from experimental economics in small-scale fisheries
Finkbeiner, Elena M. (autora) ; Micheli, Fiorenza (autora) ; Sáenz Arroyo de los Cobos, María Andrea (autora) (1971-) ; Vázquez Vera, Leonardo (autor) ; Perafan, C. A. (coaut.) ; Cárdenas, Juan Camilo (autor) ;
Contenido en: Global Environmental Change Vol. 48 (January 2018), p. 151-157 ISSN: 0959-3780
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

Global change has systematically increased uncertainty for people balancing short-term needs with long-term resource sustainability. Here, we aim to understand how uncertainty drives changes in human behavior and the underlying mechanisms mediating use of behavioral strategies. We utilize a novel behavioral approach – dynamic common-pool resource economic experiments in the field – and apply it to small-scale fisheries as a system that is particularly vulnerable to global change. Contrary to previous research, we find that when faced with higher uncertainty, resource users are choosing to reduce harvest to compensate for potential future declines. Correlates of this behavior include the capacity for social learning, previous exposure to uncertainty, and strong local institutions. These findings have important implications for any local system facing increased uncertainty from global change. Given adequate access to resources and rights, local communities can be active agents of change, capable of addressing and mitigating impacts of processes generated by higher scales.


9.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Reconstructing 290 years of a data-poor fishery through ethnographic and archival research: the East Pacific green turtle (Chelonia mydas) in Baja California, Mexico
Early Capistrán, Michelle María (autora) ; Sáenz Arroyo de los Cobos, María Andrea (autora) (1971-) ; Cardoso Mohedano, José Gilberto (autor) ; Garibay Melo, Gerardo (autor) ; Peckham, S. Hoyt (autor) ; Koch, Volker (autor) ;
Disponible en línea
Contenido en: Fish and Fisheries Vol. 19 (2018), p. 57–77 ISSN: 1467-2979
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

Evaluating historical changes in the exploitation of marine organisms is a key challenge in fisheries ecology and marine conservation. In the Eastern Pacific, marine turtles were exploited for millennia before systematic monitoring began <50 years ago. Using ethnographic and historical data, we generated a detailed reconstruction of the East Pacific green sea turtle (Chelonia mydas) fishery in Mexico’s Baja California peninsula from 1700 to 1990. Sea turtles from the region’s important feeding areas were a staple food source from the earliest phases of human occupation, dating back at least 12,000 years. In contrast with regions such as the Caribbean, small human populations and limited market access resulted in apparently sustainable turtle harvests until the second half of the 20th century. We found that the estimated annual catches between 1960 and 1980 exceeded the estimated annual catches of the previous 250 years by an order of magnitude, leading to the collapse of the fishery and the depletion of the green turtle population. A total ban on sea turtle captures in 1990, comprehensive nesting beach protection, and significant conservation efforts resulted in increases in breeding females on nesting beaches and catch rates in scientific monitoring on main feeding grounds since the early 2000s. This provides a positive outlook for this once-depleted population segment. Although further research is needed to evaluate current conservation status, we have identified a date, between 1950 and 1960, which can serve as a reliable temporal reference for future evaluations of historical baseline abundance in this region.


10.
- Artículo con arbitraje
PDF PDF
Resumen en: Inglés |
Resumen en inglés

Strong decreases in greenhouse gas emissions are required to meet the reduction trajectory resolved within the 2015 Paris Agreement. However, even these decreases will not avert serious stress and damage to life on Earth, and additional steps are needed to boost the resilience of ecosystems, safeguard their wildlife, and protect their capacity to supply vital goods and services. We discuss how well-managed marine reserves may help marine ecosystems and people adapt to five prominent impacts of climate change: acidification, sea-level rise, intensification of storms, shifts in species distribution, and decreased productivity and oxygen availability, as well as their cumulative effects. We explore the role of managed ecosystems in mitigating climate change by promoting carbon sequestration and storage and by buffering against uncertainty in management, environmental fluctuations, directional change, and extreme events. We highlight both strengths and limitations and conclude that marine reserves are a viable low-tech, costeffective adaptation strategy that would yield multiple cobenefits from local to global scales, improving the outlook for the environment and people into the future.