820 resultados para Local management


Relevância:

100.00% 100.00%

Publicador:

Resumo:

Arthropods that have a direct impact on crop production (i.e. pests, natural enemies and pollinators) can be influenced by both local farm management and the context within which the fields occur in the wider landscape. However, the contributions and spatial scales at which these drivers operate and interact are not fully understood, particularly in the developing world. The impact of both local management and landscape context on insect pollinators and natural enemy communities and on their capacity to deliver related ecosystem services to an economically important tropical crop, pigeonpea was investigated. The study was conducted in nine paired farms across a gradient of increasing distance to semi-native vegetation in Kibwezi, Kenya. Results show that proximity of fields to semi-native habitats negatively affected pollinator and chewing insect abundance. Within fields, pesticide use was a key negative predictor of pollinator, pest and foliar active predator abundance. On the contrary, fertilizer application significantly enhanced pollinator and both chewing and sucking insect pest abundance. At a 1 km spatial scale of fields, there were significant negative effects of the number of semi-native habitat patches within fields dominated by mass flowering pigeonpea on pollinators abundance. For service provision, a significant decline in fruit set when insects were excluded from flowers was recorded. This study reveals the interconnections of pollinators, predators and pests with pigeonpea crop. For sustainable yields and to conserve high densities of both pollinators and predators of pests within pigeonpea landscapes, it is crucial to target the adoption of less disruptive farm management practices such as reducing pesticide and fertilizer inputs.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Approaches to natural resource management emphasise the importance of involving local people and institutions in order to build capacity, limit costs, and achieve environmental sustainability. Governments worldwide, often encouraged by international donors, have formulated devolution policies and legal instruments that provide an enabling environment for devolved natural resource management. However, implementation of these policies reveals serious challenges. This article explores the effects of limited involvement of local people and institutions in policy development and implementation. An in-depth study of the Forest Policy of Malawi and Village Forest Areas in the Lilongwe district provides an example of externally driven policy development which seeks to promote local management of natural resources. The article argues that policy which has weak ownership by national government and does not adequately consider the complexity of local institutions, together with the effects of previous initiatives on them, can create a cumulative legacy through which destructive resource use practices and social conflict may be reinforced. In short, poorly developed and implemented community based natural resource management policies can do considerably more harm than good. Approaches are needed that enable the policy development process to embed an in-depth understanding of local institutions whilst incorporating flexibility to account for their location-specific nature. This demands further research on policy design to enable rigorous identification of positive and negative institutions and ex-ante exploration of the likely effects of different policy interventions.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

The purpose of this study is to examine the importance of the wild edible weed tasba (Senna obtusifolia) in Sanguéré Paul, Cameroon by examining how households use and manage the plant. This study found that local management of tasba is minimal compared to other traditional vegetables. Tasba was collected most frequently from en brousse or the communal, fallowed land which is often too degraded for traditional field crops to grow. Women subsistence farmers were closely involved with tasba as they are the ones responsible for food production within the family. Socioeconomic differences between women affects how they manage tasba and other vegetables to form a livelihood strategy to achieve food security within the family. Modifications and changes in management and use of tasba are influenced by time, proximity and income based on her perspective, preferences and resources available. Overall, tasba is an integral part of the traditional food system in Sanguéré Paul, and can play a role in the uncertain ecological and social setting of northern Cameroon.

Relevância:

70.00% 70.00%

Publicador:

Resumo:

Small and micro-enterprises play a significant part in economic growth and poverty alleviation in developing African countries. There are, however, a range of management issues that arise when looking at the support required for local enterprise development, the role and management style of the local support agency and the role and style of the, usually Western, funding body. This paper explores the management philosophy required to establish and resource micro-enterprise development and compares the local management processes with those expected by a Western funding body.

Relevância:

70.00% 70.00%

Publicador:

Resumo:

This project developed a visual strategy and graphic outcomes to communicate the results of a scientific collaborative project to the Mackay community. During 2013 and 2014 a team from CSIRO engaged with the community in Mackay to collaboratively develop a set of strategies to improve the management of the Great Barrier Reef. The result of this work was a 300+ page scientific report that needed to be translated and summarised to the general community. The aim of this project was to strategically synthesise information contained in the report and to design and produce an outcome to be distributed to the participant community. By working with the CISRO researchers, an action toolkit was developed, with twelve cards and a booklet. Each card represented the story behind a certain local management issue and the actions that the participants suggested should be taken in order to improve management of The Reef. During the design synthesis it was identified that for all management issues there was a reference to the need to develop some sort of "educational campaign" to the area. That was then translated as an underlying action to support all other actions proposed in the toolkit.

Relevância:

70.00% 70.00%

Publicador:

Resumo:

1. Declines in area and quality of species-rich mesotrophic and calcareous grasslands have occurred all across Europe.While the European Union has promoted schemes to restore these grasslands, the emphasis for management has remained largely focused on plants. Here we focus on restoration of the phytophagous beetles of these grasslands. Although local management, particularly that which promotes the establishment of host plants, is key to restoration success, dispersal limitation is also likely to be an important limiting factor during the restoration of phytophagous beetle assemblages. 2. Using a 3-year multi-site experiment, we investigated how restoration success of phytophagous beetles was affected by hay-spreading management (intended to introduce target plant species), success in restoration of the plant communities and the landscape context within which restoration was attempted. 3. Restoration success of the plants was greatest where green hay spreading had been used to introduce seeds into restoration sites. Beetle restoration success increased over time, although hayspreading had no direct effect. However, restoration success of the beetles was positively correlated with restoration success of the plants. 4. Overall restoration success of the phytophagous beetles was positively correlated with the proportion of species-rich grassland in the landscape, as was the restoration success of the polyphagous beetles. Restoration success for beetles capable of flight and those showing oligophagous host plant specialism were also positively correlated with connectivity to species-rich grasslands. There was no indication that beetles not capable of flight showed greater dependence on landscape scale factors than flying species. 5. Synthesis and applications. Increasing the similarity of the plant community at restoration sites to target species-rich grasslands will promote restoration success for the phytophagous beetles. However, landscape context is also important, with restoration being approximately twice as successful in those landscapes containing high as opposed to low proportions of species-rich grassland. By targeting grassland restoration within landscapes containing high proportions of species-rich grassland, dispersal limitation problems associated with restoration for invertebrate assemblages are more likely to be overcome.

Relevância:

70.00% 70.00%

Publicador:

Resumo:

Bees provide essential pollination services that are potentially affected both by local farm management and the surrounding landscape. To better understand these different factors, we modelled the relative effects of landscape composition (nesting and floral resources within foraging distances), landscape configuration (patch shape, interpatch connectivity and habitat aggregation) and farm management (organic vs. conventional and local-scale field diversity), and their interactions, on wild bee abundance and richness for 39 crop systems globally. Bee abundance and richness were higher in diversified and organic fields and in landscapes comprising more high-quality habitats; bee richness on conventional fields with low diversity benefited most from high-quality surrounding land cover. Landscape configuration effects were weak. Bee responses varied slightly by biome. Our synthesis reveals that pollinator persistence will depend on both the maintenance of high-quality habitats around farms and on local management practices that may offset impacts of intensive monoculture agriculture.

Relevância:

70.00% 70.00%

Publicador:

Resumo:

Las concepciones sobre el fenómeno participativo son amplias y generan varias posiciones. Diversos autores coinciden en que el municipio, por ser la cara del Estado más próxima a los ciudadanos, aparece como un lugar privilegiado para el desarrollo de políticas públicas participativas, contribuyendo a una gestión más transparente, eficiente, inclusiva y democrática. Esta cercanía permitiría una participación de los actores locales en los procesos de desarrollo comunal, posibilitando que diagnostiquen sus problemas, participen de instancias de decisión, elaboración y evaluación de las políticas públicas. Por otra parte, se advierte que mediante las políticas de participación el Estado traslada sus responsabilidades a la sociedad y se emplean como medio para la construcción artificial de consensos y manipulaciones políticas. Este artículo indaga acerca de los fundamentos, las metodologías de implementación y los resultados de cuatro casos de Presupuesto Participativo (La Plata, San Fernando, San Miguel y San Martín). Los ejes de análisis indagan acerca de la caracterización de los proyectos surgidos de esta política, los cambios en las modalidades de gestión local y el tipo de participación de la sociedad. Se utilizaron entrevistas en profundidad semi estructuradas, observaciones, estrategia de investigación documental sobre fuentes secundarias de información elaboradas por los municipios (página web, normativa, documentación institucional, folletería, estadísticas) y trabajos académicos elaborados por otros investigadores.

Relevância:

70.00% 70.00%

Publicador:

Resumo:

Los municipios, en los últimos veinticinco años, han cambiado sus roles. En la actualidad, los gobernantes locales asumen formas de gestionar que atienden a las crecientes demandas sociales de sus vecinos, redefiniendo las políticas públicas municipales. Parte de la tarea de gestión es el ordenamiento territorial como estrategia para orientar la distribución espacial del desarrollo, de acuerdo con los recursos disponibles, con el mejor uso que a los mismos se da en términos sociales, económicos y ambientales. Concretarlo implica cambios cualitativos importantes, adecuaciones en la gestión político-administrativa. En Victorica, La Pampa, la autogestión se perfila como una de las características más sobresalientes. La dinámica gestión de su territorio es ejemplo para otros municipios que intentan imitar el estilo. Los actores sociales son la clave del cambio.

Relevância:

70.00% 70.00%

Publicador:

Resumo:

Las concepciones sobre el fenómeno participativo son amplias y generan varias posiciones. Diversos autores coinciden en que el municipio, por ser la cara del Estado más próxima a los ciudadanos, aparece como un lugar privilegiado para el desarrollo de políticas públicas participativas, contribuyendo a una gestión más transparente, eficiente, inclusiva y democrática. Esta cercanía permitiría una participación de los actores locales en los procesos de desarrollo comunal, posibilitando que diagnostiquen sus problemas, participen de instancias de decisión, elaboración y evaluación de las políticas públicas. Por otra parte, se advierte que mediante las políticas de participación el Estado traslada sus responsabilidades a la sociedad y se emplean como medio para la construcción artificial de consensos y manipulaciones políticas. Este artículo indaga acerca de los fundamentos, las metodologías de implementación y los resultados de cuatro casos de Presupuesto Participativo (La Plata, San Fernando, San Miguel y San Martín). Los ejes de análisis indagan acerca de la caracterización de los proyectos surgidos de esta política, los cambios en las modalidades de gestión local y el tipo de participación de la sociedad. Se utilizaron entrevistas en profundidad semi estructuradas, observaciones, estrategia de investigación documental sobre fuentes secundarias de información elaboradas por los municipios (página web, normativa, documentación institucional, folletería, estadísticas) y trabajos académicos elaborados por otros investigadores.