893 resultados para Community project


Relevância:

30.00% 30.00%

Publicador:

Resumo:

The goal of mangrove restoration projects should be to improve community structure and ecosystem function of degraded coastal landscapes. This requires the ability to forecast how mangrove structure and function will respond to prescribed changes in site conditions including hydrology, topography, and geophysical energies. There are global, regional, and local factors that can explain gradients of regulators (e.g., salinity, sulfides), resources (nutrients, light, water), and hydroperiod (frequency, duration of flooding) that collectively account for stressors that result in diverse patterns of mangrove properties across a variety of environmental settings. Simulation models of hydrology, nutrient biogeochemistry, and vegetation dynamics have been developed to forecast patterns in mangroves in the Florida Coastal Everglades. These models provide insight to mangrove response to specific restoration alternatives, testing causal mechanisms of system degradation. We propose that these models can also assist in selecting performance measures for monitoring programs that evaluate project effectiveness. This selection process in turn improves model development and calibration for forecasting mangrove response to restoration alternatives. Hydrologic performance measures include soil regulators, particularly soil salinity, surface topography of mangrove landscape, and hydroperiod, including both the frequency and duration of flooding. Estuarine performance measures should include salinity of the bay, tidal amplitude, and conditions of fresh water discharge (included in the salinity value). The most important performance measures from the mangrove biogeochemistry model should include soil resources (bulk density, total nitrogen, and phosphorus) and soil accretion. Mangrove ecology performance measures should include forest dimension analysis (transects and/or plots), sapling recruitment, leaf area index, and faunal relationships. Estuarine ecology performance measures should include the habitat function of mangroves, which can be evaluated with growth rate of key species, habitat suitability analysis, isotope abundance of indicator species, and bird census. The list of performance measures can be modified according to the model output that is used to define the scientific goals during the restoration planning process that reflect specific goals of the project.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Abstract: This informative and interactive teaching symposium posits the Positive Peer Leadership Mentoring Program (PPLM) as an evidence-based wrap-around service for youth and families in Miami-Dade who are involved in the school-to-prison pipeline. Presenters first provide information to initiate the dialogic process of discerning and interpreting the school-to-prison pipeline, impacted by costs of incarceration for Black youth and families and the move toward effective mental health services in the juvenile justice system. Then, participants experience an interactive pedagogical mentoring format set forth in PPLM as the first step toward transforming the school-to-prison pipeline in their own classroom or other educational setting.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

This report presents a study on the cost benefit analyses (CBA) and cost effectiveness analysis (CEA) of community-based disaster risk reduction (DRR) interventions in the Caribbean. The DRR interventions, implemented by the International Federation of Red Cross (IFRC), Port of Spain, in three Caribbean countries, Jamaica, Antigua & Barbuda, and Suriname, comprised the pilot phase of the Red Cross (RC) Project, Improving Climate Change Resilience of Caribbean Communities. This study is part of the endeavor by the DRR Program of Florida International University (FIU) and the United States Agency for International Development’s Office of the U.S. Foreign Disaster Assistance (USAID/OFDA) to develop and foster DRR measures in the Latin American and Caribbean region since 2008.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

In recent years, a surprising new phenomenon has emerged in which globally-distributed online communities collaborate to create useful and sophisticated computer software. These open source software groups are comprised of generally unaffiliated individuals and organizations who work in a seemingly chaotic fashion and who participate on a voluntary basis without direct financial incentive. The purpose of this research is to investigate the relationship between the social network structure of these intriguing groups and their level of output and activity, where social network structure is defined as 1) closure or connectedness within the group, 2) bridging ties which extend outside of the group, and 3) leader centrality within the group. Based on well-tested theories of social capital and centrality in teams, propositions were formulated which suggest that social network structures associated with successful open source software project communities will exhibit high levels of bridging and moderate levels of closure and leader centrality. The research setting was the SourceForge hosting organization and a study population of 143 project communities was identified. Independent variables included measures of closure and leader centrality defined over conversational ties, along with measures of bridging defined over membership ties. Dependent variables included source code commits and software releases for community output, and software downloads and project site page views for community activity. A cross-sectional study design was used and archival data were extracted and aggregated for the two-year period following the first release of project software. The resulting compiled variables were analyzed using multiple linear and quadratic regressions, controlling for group size and conversational volume. Contrary to theory-based expectations, the surprising results showed that successful project groups exhibited low levels of closure and that the levels of bridging and leader centrality were not important factors of success. These findings suggest that the creation and use of open source software may represent a fundamentally new socio-technical development process which disrupts the team paradigm and which triggers the need for building new theories of collaborative development. These new theories could point towards the broader application of open source methods for the creation of knowledge-based products other than software.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Long-term measurements (i.e. months) of in situ pH have not previously been reported from the Arctic; this study shows fluctuations between pH 7.5 and 8.3 during the spring bloom 2012 in a coastal area of Disko Bay, West Greenland. The effect of acidification on phytoplankton from this area was studied at both the community and species level in experimental pH treatments within (pH 8.0, 7.7 and 7.4) and outside (pH 7.1) in situ pH. The growth rate of the phytoplankton community decreased during the experimental acidification from 0.50 ± 0.01/day (SD) at pH 8.0 to 0.22 ± 0.01/day at pH 7.1. Nevertheless, the response to acidification was species-specific and divided into 4 categories: I, least affected; II, affected only at pH 7.1; III, gradually affected and IV, highly affected. In addition, the colony size and chain length of selected species were affected by the acidification. Our findings show that coastal phytoplankton from Disko Bay is naturally exposed to pH fluctuations exceeding the experimental pH range used in most ocean acidification studies. We emphasize that studies on ocean acidification should include in situ pH before assumptions on the effect of acidification on marine organisms can be made.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

This project was funded by National Institute for Health Research (NIHR) Health Technology Assessment Programme and will be published in full in Health Technology Assessment; Vol. 20, No. 50. See the NIHR Journals Library website for further project information.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Acknowledgments The investigation of the Bennachie Colony is part of a broader initiative called the Bennachie Landscape Project, a collaborative endeavour between the Bailies of Bennachie and the University of Aberdeen. To date, funding for the project has been generously provided by the Arts and Humanities Research Council (AHRC) in the form of a Connected Communities Grant (G. Noble PI) and more recently through a larger Development Grant (J. Oliver PI). The research that this paper is based on could not have been undertaken without the generous assistance of a large number of volunteers, university students and staff members. While it would be impossible to name everyone who has contributed, we would like to acknowledge the regular members of the “landscape group” whose infective enthusiasm for the project has provided a stimulating environment for learning and co-production. Particular thanks go to Jackie Cumberbirch, Barry Foster, Chris Foster, Angela Groat, David Irving, Alison Kennedy, Harry Leal, Ken Ledingham, Colin Miller, Iain Ralston, Colin Shepherd, Sue Taylor and Andrew Wainwright. Further assistance with fieldwork was provided by Ágústa Edwald, Patrycia Kupiec, Barbora Wouters, Óskar Sveinbjarnarson, members of Northlight Heritage and several cohorts worth of University of Aberdeen undergraduate and graduate students. We are indebted to the RCAHMS for assistance with plane table survey and to Óskar Sveinbjarnarson for help with mapping. Others have supported additional aspects of the Bennachie Landscape project or have provided specialist advice. Thanks go to Neil Curtis, Liz Curtis, Rowan Ellis, Marjory Harper, Siobhan Convery and the University of Aberdeen Special Collections staff. Access to undertake fieldwork was graciously provided by the Forestry Commission Scotland. Helpful comments on earlier drafts of this paper were provided by Barry and Chris Foster, Ken Ledingham, Collin Miller, Collin Shepherd, Sue Taylor, Andrew Wainwright and two anonymous reviewers.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Acknowledgments The investigation of the Bennachie Colony is part of a broader initiative called the Bennachie Landscape Project, a collaborative endeavour between the Bailies of Bennachie and the University of Aberdeen. To date, funding for the project has been generously provided by the Arts and Humanities Research Council (AHRC) in the form of a Connected Communities Grant (G. Noble PI) and more recently through a larger Development Grant (J. Oliver PI). The research that this paper is based on could not have been undertaken without the generous assistance of a large number of volunteers, university students and staff members. While it would be impossible to name everyone who has contributed, we would like to acknowledge the regular members of the “landscape group” whose infective enthusiasm for the project has provided a stimulating environment for learning and co-production. Particular thanks go to Jackie Cumberbirch, Barry Foster, Chris Foster, Angela Groat, David Irving, Alison Kennedy, Harry Leal, Ken Ledingham, Colin Miller, Iain Ralston, Colin Shepherd, Sue Taylor and Andrew Wainwright. Further assistance with fieldwork was provided by Ágústa Edwald, Patrycia Kupiec, Barbora Wouters, Óskar Sveinbjarnarson, members of Northlight Heritage and several cohorts worth of University of Aberdeen undergraduate and graduate students. We are indebted to the RCAHMS for assistance with plane table survey and to Óskar Sveinbjarnarson for help with mapping. Others have supported additional aspects of the Bennachie Landscape project or have provided specialist advice. Thanks go to Neil Curtis, Liz Curtis, Rowan Ellis, Marjory Harper, Siobhan Convery and the University of Aberdeen Special Collections staff. Access to undertake fieldwork was graciously provided by the Forestry Commission Scotland. Helpful comments on earlier drafts of this paper were provided by Barry and Chris Foster, Ken Ledingham, Collin Miller, Collin Shepherd, Sue Taylor, Andrew Wainwright and two anonymous reviewers.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Projects, as an organizing principle, can provide exciting contexts for innovative work. Thus far, project management discourse has tended to privilege the vital need to deliver projects ‘on time, on budget, and to specification’. In common with the call for papers for this workshop we suggest that perhaps the “instrumental rationality” underpinning this language of characterising project activity may create more problems than it solves. In this paper we suggest that such questions (and language) frame project contexts in a partial way. We argue that such concerns stem from a particular worldview or ontology, which we identify as a ‘being’ ontology. Here we contrast being and becoming project ontologies, to explore the questions, methods and interventions that each foregrounds. In an attempt to move this dialogue further than simply another contrast of modern and postmodernist accounts of project organising, we go on to consider some possible ethical concomitants of valuing being and becoming ontologies in project contexts.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Climate change and sea level rise continue to devastate communities around the globe. The impacts have a disproportionate effect on those of lower socio-economic levels, and the consequences are frequently not borne equally amongst impacted individuals (UNDP, 2013). Community-based adaptation has been widely used to assess vulnerabilities and impacts at the community level, with an inclusive process that addresses root causes of risk. The process provides the opportunity for local government to empower and engaged impacted communities in identifying and prioritizing their urgent adaptation needs. This study aims to understand East Palo Alto community vulnerabilities by assessing local knowledge and perception of risk to climate change. East Palo Alto, an urban city in California with socio-economic challenges, is vulnerable to flooding and coastal inundation. The limited financial and institutional capacity of the local government and community increases vulnerability and risk. Recommendations and steps are presented to guide actions and programs that are crucial in addressing community priorities and concerns.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Climate change and sea level rise continue to devastate communities around the globe. The impacts have a disproportionate effect on those of lower socio-economic levels, and the consequences are frequently not borne equally amongst impacted individuals (UNDP, 2013). Community-based adaptation has been widely used to assess vulnerabilities and impacts at the community level, with an inclusive process that addresses root causes of risk. The process provides the opportunity for local government to empower and engaged impacted communities in identifying and prioritising their urgent adaptation needs. This study aims to understand East Palo Alto community vulnerabilities by assessing local knowledge and perception of risk to climate change. East Palo Alto, an urban city in California with socio- economic challenges, is vulnerable to flooding and coastal inundation. The limited financial and institutional capacity of the local government and community increases vulnerability and risk. Recommendations and steps are presented to guide actions and programs that are crucial in addressing community priorities and concerns

Relevância:

30.00% 30.00%

Publicador:

Resumo:

The question of evaluations of development projects has been widely debated within the field of international development, with scholars and development practitioners calling for increased community-driven evaluations. However, there has been a paucity of research in community-led project evaluations, and a largely absent investigation utilizing visual anthropology/sociology methodologies. This paper seeks to shift this power by giving voice to the intended beneficiaries of an eco-tourism project in a rural indigenous Guatemala village. Through photographs taken by community members and corresponding interviews, this paper shows the way in which community members have and continue to reframe the idea of development in their village. Specifically, my analysis reveals how residents see changing forms of access, how they reframe ideas of beauty and modernization, and how they reframe their relationship to the land through Western conservation and private property ideals. This research thus provides an alternative narrative to the Western NGO’s evaluations and knowledge production, especially in respect to development and indigenous knowledge. By showing how community members are reframing the story of development, this paper demonstrates the usefulness of using participatory documentary photography in community-led evaluations, and helps balance the playing field by providing a much-needed alternative narrative of project evaluation.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Ocean acidification represents a key threat to coral reefs by reducing the calcification rate of framework builders. In addition, acidification is likely to affect the relationship between corals and their symbiotic dinoflagellates and the productivity of this association. However, little is known about how acidification impacts on the physiology of reef builders and how acidification interacts with warming. Here, we report on an 8-week study that compared bleaching, productivity, and calcification responses of crustose coralline algae (CCA) and branching (Acropora) and massive (Porites) coral species in response to acidification and warming. Using a 30-tank experimental system, we manipulated CO2 levels to simulate doubling and three- to fourfold increases [Intergovernmental Panel on Climate Change (IPCC) projection categories IV and VI] relative to present-day levels under cool and warm scenarios. Results indicated that high CO2 is a bleaching agent for corals and CCA under high irradiance, acting synergistically with warming to lower thermal bleaching thresholds. We propose that CO2 induces bleaching via its impact on photoprotective mechanisms of the photosystems. Overall, acidification impacted more strongly on bleaching and productivity than on calcification. Interestingly, the intermediate, warm CO2 scenario led to a 30% increase in productivity in Acropora, whereas high CO2 lead to zero productivity in both corals. CCA were most sensitive to acidification, with high CO2 leading to negative productivity and high rates of net dissolution. Our findings suggest that sensitive reef-building species such as CCA may be pushed beyond their thresholds for growth and survival within the next few decades whereas corals will show delayed and mixed responses.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

During the SINOPS project, an optimal state of the art simulation of the marine silicon cycle is attempted employing a biogeochemical ocean general circulation model (BOGCM) through three particular time steps relevant for global (paleo-) climate. In order to tune the model optimally, results of the simulations are compared to a comprehensive data set of 'real' observations. SINOPS' scientific data management ensures that data structure becomes homogeneous throughout the project. Practical work routine comprises systematic progress from data acquisition, through preparation, processing, quality check and archiving, up to the presentation of data to the scientific community. Meta-information and analytical data are mapped by an n-dimensional catalogue in order to itemize the analytical value and to serve as an unambiguous identifier. In practice, data management is carried out by means of the online-accessible information system PANGAEA, which offers a tool set comprising a data warehouse, Graphical Information System (GIS), 2-D plot, cross-section plot, etc. and whose multidimensional data model promotes scientific data mining. Besides scientific and technical aspects, this alliance between scientific project team and data management crew serves to integrate the participants and allows them to gain mutual respect and appreciation.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Despite the potential impact of ocean acidification on ecosystems such as coral reefs, surprisingly, there is very limited field data on the relationships between calcification and seawater carbonate chemistry. In this study, contemporaneous in situ datasets of seawater carbonate chemistry and calcification rates from the high-latitude coral reef of Bermuda over annual timescales provide a framework for investigating the present and future potential impact of rising carbon dioxide (CO2) levels and ocean acidification on coral reef ecosystems in their natural environment. A strong correlation was found between the in situ rates of calcification for the major framework building coral species Diploria labyrinthiformis and the seasonal variability of [CO32-] and aragonite saturation state omega aragonite, rather than other environmental factors such as light and temperature. These field observations provide sufficient data to hypothesize that there is a seasonal "Carbonate Chemistry Coral Reef Ecosystem Feedback" (CREF hypothesis) between the primary components of the reef ecosystem (i.e., scleractinian hard corals and macroalgae) and seawater carbonate chemistry. In early summer, strong net autotrophy from benthic components of the reef system enhance [CO32-] and omega aragonite conditions, and rates of coral calcification due to the photosynthetic uptake of CO2. In late summer, rates of coral calcification are suppressed by release of CO2 from reef metabolism during a period of strong net heterotrophy. It is likely that this seasonal CREF mechanism is present in other tropical reefs although attenuated compared to high-latitude reefs such as Bermuda. Due to lower annual mean surface seawater [CO32-] and omega aragonite in Bermuda compared to tropical regions, we anticipate that Bermuda corals will experience seasonal periods of zero net calcification within the next decade at [CO32-] and omega aragonite thresholds of ~184 micro moles kg-1 and 2.65. However, net autotrophy of the reef during winter and spring (as part of the CREF hypothesis) may delay the onset of zero NEC or decalcification going forward by enhancing [CO32-] and omega aragonite. The Bermuda coral reef is one of the first responders to the negative impacts of ocean acidification, and we estimate that calcification rates for D. labyrinthiformis have declined by >50% compared to pre-industrial times.