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318 resultados encontrados para: TEMA: Conservación del medio ambiente
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1.
Libro
Situación del subsector agua potable, alcantarillado y saneamiento: a diciembre de 1999
México : Comisión Nacional del Agua , s.f.
Clasificación: 628.1 / S5
Bibliotecas: Villahermosa
Cerrar
SIBE Villahermosa
ECO050001325 (Disponible)
Disponibles para prestamo: 1

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
Perspectivas sobre el jaguar (Panthera onca) en dos comunidades insertas en áreas para su conservación en Nayarit, México
Zamudio, María G. (autora) ; Oyolsi Nájera, Oyalsi (autora) ; Luja Molina, Víctor Hugo (autor) ;
Disponible en línea
Contenido en: Sociedad y Ambiente Número 23 (julio-diciembre 2020), páginas 1-19 ISSN: 2007-6576
PDF PDF
Resumen en: Español | Inglés |
Resumen en español

Entre las estrategias para mitigar la pérdida de especies, específicamente del jaguar (Panthera onca), se encuentran las Áreas Regionales para la Conservación del Jaguar. La mayoría de los trabajos para la conservación de la especie se realizan desde la perspectiva ecológica, siendo escasos aquellos referidos a la sociedad y su relación con el ambiente. El objetivo de este trabajo es analizar la perspectiva que sobre el jaguar tienen los habitantes de dos comunidades insertas en áreas para su conservación en Nayarit, México. Se realizaron 58 entrevistas semiestructuradas a actores clave. Los resultados indican que los principales problemas respecto a la convivencia con el jaguar son la desinformación que se tiene sobre la especie, la escala de valores de las comunidades y la prevalencia de la cultura del consumo, lo que representa uno de los principales obstáculos para su conservación. Se identificó una inclinación estética positiva hacia el jaguar, siendo este resultado un posible punto de partida para la implementación de estrategias de educación ambiental. Con los resultados obtenidos se busca contribuir al entendimiento de las posturas de las comunidades con la finalidad de incrementar las probabilidades de éxito de estrategias de conservación.

Resumen en inglés

Strategies to mitigate the loss of species, specifically the jaguar (Panthera onca), include Regional Areas for Jaguar Conservation. Most of the work to conserve this species is undertaken from an ecological perspective, and few are related to society and its relation with the environment. The purpose of this article was to analyze the perspectives of the inhabitants of two communities regarding jaguars in areas for its conservation in Nayarit, Mexico. Fifty-eight semi-structured interviews were conducted with key actors. The results indicate that the main problems regarding coexistence with jaguars are lack of information about the species, the scale of values of communities, and the prevalence of a consumer culture, which constitutes one of the main obstacles to its conservation. A positive aesthetic inclination towards the jaguar was identified, which could serve as a possible starting point for the implementation of environmental education strategies. The results contribute to the understanding of the point of view of the communities in order to increase the chances of success of conservation strategies.


4.
- Capítulo de libro sin arbitraje
El bosque mesófilo de montaña
Castillo Acosta, Ofelia (autora) ; Zavala Cruz, Joel (autor) ; López López, Deysi (autora) ; Almeida Cerino, Carlos Mario (autor) ;
Contenido en: La biodiversidad en Tabasco. Estudio de estado / coordinación y seguimiento general: Andrea Cruz Angón, Jorge Cruz Medina, Jessica Valero Padilla, Flor Paulina Rodríguez Reynaga, Erika Daniela Melgarejo Distrito Federal, México : Comisión Nacional para el Conocimiento y Uso de la Biodiversidad, 2019 Vol. II, página 21-27 ISBN:978-6078570218 (Vol. II)
Bibliotecas: Villahermosa
Cerrar
SIBE Villahermosa
7259-20 (Disponible)
Disponibles para prestamo: 1

5.
Artículo
La capacidad de adaptación en la Reserva de la Biosfera Pantanos de Centla, México
Morales Rodríguez, José Roberto (autor) ; Ortega Argueta, Alejandro (autor) ; Ramos Muñoz, Dora Elia (autora) ; Gurri García, Francisco D. (autor) ;
Disponible en línea
Contenido en: Economía, Sociedad y Territorio Volumen XVIII, número 59 (2019), p. 1119-1153 ISSN: 1405-8421
PDF
Resumen en: Español | Inglés |
Resumen en español

Las áreas naturales protegidas (ANP), por medio de su gestión, pueden funcionar como territorios que faciliten la capacidad de adaptación (CA) de sus habitantes. En este estudio se evaluó la influencia de un programa gubernamental ambiental (Procodes) sobre la CA de grupos comunitarios en un ANP. Para ello, se realizó una revisión documental del programa (2008-2016) y una encuesta de percepción en 2016 que comprende dimensiones social y ecológica. Acorde a los resultados, el fortalecimiento de la CA se relaciona con la legitimidad de los mecanismos de participación, la asignación de subsidios y el horizonte de planificación de proyectos productivos.

Resumen en inglés

Protected areas (PA), through management, can be territories that facilitate the strengthening of inhabitants’ adaptive capacity (AC). This work evaluated the influence of a governmental environmental program (Procodes) on the AC of community groups into PA. To this end, a documentary review (2008-2016) and a perception survey in 2016 were conducted that included ecological and social dimensions. According to the results, the strengthening of AC is related with legitimacy of participation mechanisms, the assignation of subsidies and the planning horizon of productive projects.


6.
Libro
The ecology book / senior editors: Helen Fewster, Camilla Hallinan ; Tony Juniper (foreword)
Fewster, Helen (editora) ; Hallinan, Camilla (editora) ;
New York, New York, United States : Dorling Kindersley Limited , 2019
Clasificación: 577 / E24
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
ECO010019802 (Prestado)
Disponibles para prestamo: 0
Índice | Resumen en: Inglés |
Resumen en inglés

How do species interact with each other and their environment? How do ecosystems change? What is biodiversity and can we afford to damage it? Throughout history, humankind has tried to order the living world and understand how it works. As our influence on the planet grows, answering these profound questions is becoming more and more pressing. Written in plain English, The Ecology Book is packed with short, pithy explanations of more than 90 key ideas. Step-by-step diagrams untangle tricky theories, illuminating quotes make the ideas and discoveries memorable, and witty illustrations enhance and play with our understanding of the science. You'll explore key theories, movements, and events in biology, geology, geography, and environmentalism, from the ideas of classical thinkers and Enlightenment attempts to impose order on nature, to discoveries such as DNA and theories like the Gaia hypothesis. Boxes highlighting "green" issues - the impact of pesticides, the plight of vulnerable species, and the search for renewable energy - appear throughout, as do profiles of influential figures - Charles Darwin, Carl Linnaeus, Rachel Carson, and James Lovelock - which place their ideas in their historical context. Whether you're new to ecology, a science student, or simply concerned about what's happening to our planet, this is a comprehensive introduction to the environment and climate change - arguably the most important subjects of our time.

Índice

Introduction
The Story of Evolution
20 Time is insignificant and never a difficulty for nature
Early theories of evolution
A world previous to ours, destroyed by catastrophe
Extinction and change
No vestige of a beginning —no prospect of an end
Uniformitarianism
The struggle for existence
Evolution by natural selection
Human beings are ultimately nothing but carriers for genes
The rules of heredity
We’ve discovered the secret of life
The role of DNA
Genes are selfish molecules
The selfish gene
Ecological Processes
Lessons from mathematical theory on the struggle for life
Predator-prey equations
Existence is determined by a slender thread of circumstances
Ecological niches
Complete competitors cannot coexist
Competitive exclusion principle
Poor field experiments can be worse than useless
Field experiments
More nectar means more ants and more ants mean more nectar
Mutualisms Whelks are like little wolves in slow motion
Keystone species
The fitness of a foraging animal depends on its efficiency
Optimal foraging theory
Parasites and pathogens control populations like predators
Ecological epidemiology
Why don’t penguins’ feet freeze?
Ecophysiology
All life is chemical
Ecological stoichiometry
Fear itself is powerful
Nonconsumptive effects of predators on their prey
Ordering the Natural World
In all things of nature there is something of the marvelous
Classification of living things
By the help of microscopes nothing escapes our inquiry
The microbiological environment
If you do not know the names of things, the knowledge of them is lost
A system for identifying all nature’s organisms
“Reproductively isolated” are the key words
Biological species concept
Organisms clearly cluster into several primary kingdoms
A modern view of diversity
Save the biosphere and you may save the world

Human activity and biodiversity
We are in the opening phase of a mass extinction
Biodiversity hotspots
The Variety of Life
It is the microbes that will have the last word
Microbiology
Certain tree species have a symbiosis with fungi
The ubiquity of mycorrhizae
Food is the burning question
Animal ecology
Birds lay the number of eggs that produce the optimum number of offspring
Clutch control
The bond with a true dog is as lasting as the ties of this earth can ever be
Animal behavior
Redefine “tool”, redefine “man”, or accept
chimpanzees as humans Using animal models to understand human behavior
All bodily activity depends on temperature
Thermoregulation in insects
Every distinct part of nature’s works is necessary for the support of the rest
The food chain
All organisms are potential sources of food for other organisms
The ecosystem
Life is supported by a vast network of processes
Energy flow through ecosystems
The world is green
Trophic cascades
Islands are ecological systems
Island biogeography
It is the constancy of numbers that matters
Ecological resilience
Populations are subjected to unpredictable forces
The neutral theory of biodiversity
Only a community of researchers has a chance of revealing the complex whole
Big ecology
The best strategy depends on what others are doing
Evolutionarily stable state
Species maintain the functioning and stability of ecosystems
Biodiversity and ecosystem function,, Organisms in A Changing Environment
The philosophical study of nature connects the present with the past
The distribution of species over space and time
The virtual increase of the population is limited by the fertility of the country
The Verhulst equation
The first requisite is a thorough knowledge of the natural order
Organisms and their environment
Plants live on a different timescale

The foundations of plant ecology
The causes of differences among plants
Climate and vegetation
I have great faith in a seed
Ecological succession
The community arises, grows, matures, and dies
Climax community
An association is not an organism but a coincidence
Open community theory
A group of species that exploit their environment in a similar way
The ecological guild
The citizen network depends on volunteers
Citizen science
Population dynamics become chaotic when the rate of reproduction soars
Chaotic population change
To visualize the big picture, take a distant view
Macroecology
A population of populations
Metapopulations
Organisms change and construct the world in which they live
Niche construction
Local communities that exchange colonists
Metacommunities
The Living Earth
The glacier was God’s great plow
Ancient ice ages
There is nothing on the map to mark the boundary line
Biogeography
Global warming isn’t a prediction. It is happening
Global warming
Living matter is the most powerful geological force
The biosphere
The system of nature
Biomes
We take nature’s services for granted because we don’t pay for them
A holistic view of Earth
Plate tectonics is not all havoc and destruction
Moving continents and evolution
Life changes Earth to its own purposes
The Gaia hypothesis
65 million years ago something killed half of all the life on the Earth
Mass extinctions
Burning all fuel reserves will initiate the runaway greenhouse,, Environmental feedback loops
The Human Factor,, Environmental pollution is an incurable disease
Pollution
God cannot save these trees from fools
Endangered habitats
We are seeing the beginnings of a rapidly changing planet
The Keeling Curve
The chemical barrage has been hurled against the fabric of life
The legacy of pesticides

A long journey from discovery to political action
Acid rain
A finite world can support only a finite population
Overpopulation
Dark skies are now blotted out
Light pollution
I am fighting for humanity
Deforestation
The hole in the ozone layer is a kind of skywriting
Ozone depletion
We needed a mandate for change
Depletion of natural resources
Bigger and bigger boats chasing smaller and fewer fish
Overfishing
The introduction of a few rabbits could do little harm
Invasive species
As temperatures increase, the delicately balanced system falls into disarray
Spring creep
One of the main threats to biodiversity is infectious diseases
Amphibian viruses
Imagine trying to build a house while someone keeps stealing your bricks
Ocean acidification
The environmental damage of urban sprawl cannot be ignored
Urban sprawl
Our oceans are turning into a plastic soup
A plastic wasteland
Water is a public trust and a human right
The water crisis
Environmentalism and Conservation
The dominion of man over nature rests only on knowledge
Humankind’s dominance over nature
Nature is a great economist
The peaceful coexistence of humankind and nature
In wildness is the preservation of the world
Romanticism, conservation, and ecology
Man everywhere is a disturbing agent
Human devastation of Earth
Solar energy is both without limit and without cost
Renewable energy
The time has come for science to busy itself with the Earth itself
Environmental ethics
Think globally, act locally
The Green Movement
The consequences of today’s actions on tomorrow’s world
Man and the Biosphere Programme
Predicting a population’s size and its chances of extinction
Population viability analysis
Climate change is happening here. It is happening now
Halting climate change
The capacity to sustain the world’s population
Sustainable biosphere initiative

We are playing dice with the natural environment
The economic impact of climate change
Monocultures and monopolies are destroying the harvest of seed
Seed diversity
Natural ecosystems and their species help sustain and fulfill human life
Ecosystem services
We are living on this planet as though we have another one to go to
Waste disposal
Directory
Glossary
Index
Quote Attributions
Acknowledgments


7.
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.


8.
Libro
Perspectivas de investigación sobre los mamíferos silvestres de Guatemala / edición: Cristian Kraker, Ana Patricia Calderón, Andrea A. Cabrera
Disponible en línea: Perspectivas de investigación sobre los mamíferos silvestres de Guatemala.
Kraker Castañeda, Cristian (editor) ; Calderón, Ana Patricia (editora) ; Cabrera, Andrea A. (editora) ;
Guatemala, Guatemala : Asociación Guatemalteca de Mastozoologos , 2019
Disponible en línea
Clasificación: EE/599.097281 / P4
Bibliotecas: San Cristóbal , Tapachula
Cerrar
SIBE San Cristóbal
ECO010019774 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Tapachula
ECO020013863 (Disponible)
Disponibles para prestamo: 1
PDF
Índice | Resumen en: Español |
Resumen en español

Desde hace décadas se han llevado a cabo estudios enfocados a los mamíferos silvestres de Guatemala; sin embargo, mucha de esta información permanece como literatura gris. Hasta ahora, no existía una obra que recopilara trabajos científicos sobre este taxón. Habiendo identificado esta oportunidad decidimos, con apoyo de la Asociación Guatemalteca de Mastozoólogos, convocar a un grupo de investigadores/as para que desarrollaran con libertad manuscritos en su área de especialización y de esta manera compilar perspectivas, planteamientos y herramientas variadas. Finalmente, se logra integrar textos que comprenden a los mamíferos terrestres menores, mamíferos terrestres medianos y mayores, y mamíferos acuáticos continentales y marinos. Los mismos son inéditos y estuvieron sujetos a revisión por pares, cumpliendo de esta manera con una de las premisas más importantes en el ámbito de la publicación científica, la retroalimentación entre especialistas. Es así, que concretamos este proyecto cuyo impacto se puede extender a instituciones académicas y gubernamentales, ya que brinda en algunos casos la base de conocimiento, así como insumos para las estrategias de conservación de biodiversidad.

Índice

Prólogo
Presentación
Introducción
Listado de autores/as
Listado de revisores/as
Mamíferos Terrestres Pequeños
Shrews (Eulipotyphla, Soricidae) of Guatemala
Abstract
Introduction
Reproductive patterns
Taxonomic Accounts
Accounts of species
Acknowledgments
Literature cited
Diversification Patterns of Gricetid Rodents in Mesoamerica
Abstract
Introduction
Materials and methods
Results
Discussion
Acknowledgments
Literature cited
Actividad reproductiva en 41 especies de murciélagos de 4 biomas de Guatemala
Resumen
Introducción
Materiales y métodos
Resultados
Discusión
Agradecimientos
Literatura citada
Anexos
Mamíferos Terrestres Medianos y Grandes
Estado de conservación de dos ungulados sociales en Guatemala: pecarí de labios blancos y pecarí de collar
Resumen
Introducción
Materiales y métodos
Resultados
Discusión
Agradecimientos
Literatura citada
Estado de conservación del venado cola blanca, el cabrito rojo y el cabro bayo en Guatemala, en la Reserva de Biosfera Calakmul y el ejido Nuevo Becal, México
Resumen
Introducción
Materiales y métodos
Resultados
Discusión
Agradecimientos
Literatura citada
Historia natural y conservación del tapir centroamericano (Tapirus bairdii) en Guatemala
Resumen
Introducción
Materiales y métodos
Resultados
Discusión
Agradecimientos
Literatura citada
Laying the Foundations: Distribution of Game and Jaguar Prey Species in Response to Subsistence Hunting in the Eastern Maya Biosphere Reserve
Abstract
Introduction
Materials and methods
Results
Discussion
Acknowledgements
Literature cited
Situación de los primates en Petén, Guatemala
Resumen
Introducción
Materiales y métodos
Resultados
Discusión
Agradecimientos
Literatura citada
Anexos

Mamíferos Acuáticos Continentales y Marinos
El manatí antillano Trichechus manatus manatus (Sirenia: Trichechidae) en Guatemala: amenazas y procesos de conservación
Resumen
Introducción
Materiales y métodos
Resultados
Discusión
Agradecimientos
Literatura citada
Familia Delphinidae en Guatemala: avances en el conocimiento sobre su distribución y comportamiento
Resumen
Introducción
Materiales y métodos
Resultados
Discusión
Agradecimientos
Literatura citada
Anexos
Distribución y abundancia de las ballenas en Guatemala con énfasis en el comportamiento de la ballena jorobada (Megaptera novaeangliae)
Resumen
Introducción
Materiales y métodos
Resultados
Discusión
Agradecimientos
Literatura citada


9.
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.


10.
- Artículo con arbitraje
Assessment of soil erosion vulnerability in the heavily populated and ecologically fragile communities in Motozintla de Mendoza, Chiapas, Mexico
González Morales, Selene ; Mayer, Alex S. (coaut.) ; Ramírez Marcial, Neptalí (coaut.) (1963-) ;
Contenido en: Solid Earth and Discussions Vol. 9, no. 3 (June 2018), p. 745-757 ISSN: 1869-9529
PDF PDF
Resumen en: Inglés |
Resumen en inglés

Variability in physical rates and local knowledge of soil erosion was assessed across six rural communities in the Sierra Madre del Sur, Chiapas, Mexico. The average erosion rate estimated using the RUSLE model is 274 t ha-¹ yr-¹, with the estimated erosion rates ranging from 28 to 717 t ha-¹ yr-¹. These very high erosion rates are associated with high rainfall erosivity (17 000 MJ mm ha-¹ h-¹ yr-¹) and steep slopes (mean slope Combining double low line 67 %). Many of the highest soil erosion rates are found in communities that are dominated by forestland, but where most of the tree cover has been removed. Conversely, lower erosion rates are often found where corn is cultivated for most of the year. According to the results of the soil erosion KAP (knowledge, attitude and practices) survey, awareness of the concept of soil erosion was reasonably high in all of the communities, but awareness of the causes of erosion was considerably lower. More than half of respondents believed that reforestation is a viable option for reducing soil erosion, but only a third of respondents were currently implementing reforestation practices. Another third of the respondents indicated that they were not following any soil conservation practices.

Respondents indicated that adoption of government reforestation efforts have been hindered by the need to clear their land to sell forest products or cultivate corn. Respondents also mentioned the difficulties involved with obtaining favorable tree stocks for reforestation. The KAP results were used to assess the overall level of motivation to solve soil erosion problems by compiling negative responses. The relationship between the magnitude of the soil erosion problem and the capacity to reduce soil erosion is inconsistent across the communities. One community, Barrio Vicente Guerrero, had the highest average negative response rate and the second highest soil erosion rate, indicating that this community is particularly vulnerable.