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| Registros recuperados: 56 | |
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| Pesquero,MA; Dias,AMPM. |
| Solenopsis saevissima (Smith) and Solenopsis invicta Buren are the most abundant and widely distributed fire ants in Brazil. The occurrence of the two fire ant species and of their parasitoids Pseudacteon spp. is described for a climatic and phytophysiognomic transition area in the state of São Paulo. Both fire ant species have a parapatric distribution, apparently determined by the climate: S. saevissima predominates in the north part of São Paulo (Aw climate), while S. invicta in the south (Cfa climate). A sympatric area is observed between the latitudes 21ºS and 23ºS. Two different communities of parasitic decapitating flies were associated with S. saevissima in the north and with S. invicta in the south, with a sympatric area in the municipality of São... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Host selection; Community; Biological control. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000600003 |
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| Aderinoye-Abdulwahab, S.A.; Adefalu, L.L.. |
| The study which was conducted in rural communities of Kwara State, Nigeria set to uncover how pastoralists‟ families cope with their livelihoods when their husbands have gone grazing with the cattle. It examined the social and financial coping strategies of their families through Focus group discussions and interviews with pastoralists, their wives and some extension agents. The findings revealed that the pastoralists live in marginalised conditions and they lack access to social services needed to boost their living conditions. The study recommended increased social networks by government and agricultural bodies to improve on the livelihoods of these people. |
| Tipo: Presentation |
Palavras-chave: Pastoralists; Community; Marginalisation; Extension services.; Community/Rural/Urban Development. |
| Ano: 2012 |
URL: http://purl.umn.edu/124218 |
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| Yi, Dale. |
| Data from a national telephone survey of working-aged adults in the continental US is combined with US Census 2000 data to explore the determinants of attachment to place and time preferences for jobs, natural amenities, and financial assets. Five regions in the US were delineated so that regional differences in the determinants of the dependent variables of interest could be parsed out. The regions are the Great Plains, Borderlands, Appalachia, the Plantation Belt, and the rest of the continental US. The first essay that explores time preferences for jobs, natural amenities, and money. Each was embedded with a ten percent rate of return. In aggregate, the nation as a whole demonstrated that the discount rate for jobs, natural amenities, and financial... |
| Tipo: Thesis or Dissertation |
Palavras-chave: Great Plains; Migration; Time preference; Survey; Community attachment; Social capital; Natural amenity; Economic development; Community; Census; Zip code; Policy; Native American; Community/Rural/Urban Development; Resource /Energy Economics and Policy; R11; R23; R53; R58; Q51; Q52; O13; O15. |
| Ano: 2009 |
URL: http://purl.umn.edu/56009 |
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| Sultana, Parvin; Thompson, Paul M.. |
| Floodplain wetlands are the major common pool natural resource in Bangladesh. Mostly men fish, and both men and women collect aquatic plants and snails. Case studies contrast a women-only, men-only, and mixed community based organization (CBO), each of which manages a seasonal floodplain wetland. The two CBOs in which women hold key positions are in Hindu communities where more women use aquatic resources, work for an income, and belong to other local institutions. In the oldest of these CBOs, more women have gradually become office bearers as their recognition in the community has grown. In the Muslim community, only a few women collect aquatic resources and in this community most women do not perceive floodplain natural resource constraints to be very... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Floodplains; Fisheries; Community; Bangladesh; Resource /Energy Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/42509 |
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| Chisaka, Jonathan. |
| The purpose of this report is to show the process of the intervention made through the implementation of the IWRM and Food Security Demonstration Project in Zambia. The report gives details of the project processes, showing the steps the project went through, the outcomes and its impact on the communities where it was implemented. The report is the result of a number of field visits made to the completed project sites, the sources of information have been; focus group meetings, interviews, discussions with key informants, beneficiaries the youth, male and female stakeholders and reviews of project activity reports, and direct observations. Therefore, what is presented here is a cumulative “factual and real time” opinion as to what has been observed and... |
| Tipo: Report |
Palavras-chave: Water resource management; Project planning; Project management; Water storage; Pumping; Wells; Participatory management; Leadership; Water policy; Central government; Local government; Irrigation water; Zambia; Kafue River Basin; Katuba; Namwala; Chibombo; Agribusiness; Community; Rural; Urban Development; Crop Production; Industries; Demand and Price Analysis; Environmental Economics and Policy; Farm Management; Institutional and Behavioral Economics; Land Economics; Land Use; Production Economics; Research and Development; Emerging Technologies; Research Methods; Statistical Methods; Resource; Energy Economics and Policy; Food Security and Poverty; Community involvement; Tech Change. |
| Ano: 2009 |
URL: http://purl.umn.edu/91805 |
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| Siqueira, Euler David de. |
| Descartes’ thought in the 17th century announces the dawning of Modern Age. One of his heritages was the notion that we could get to know further about nature, reducing the complex to its simplest parts. This form of thinking has made us see reality as one made up of parts. The explanation of such parts would enable us to number, ordenate and understand the all. The stratification and hierarchyzation of what one calls society in parts, similar to an organism or as a system formed by economy, communication, language, religion, politics, State, rights, has fomented the idea that such spheres find themselves separated, whereas they are not in fact. This article means to develop the idea that social reality, when seen as a whole, may be able to gather together... |
| Tipo: Journal Article |
Palavras-chave: Community; Labor; Flexible accumulation; Dry production. |
| Ano: 2003 |
URL: http://purl.umn.edu/43538 |
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| Siqueira,Carla C; Vrcibradic,Davor; Dorigo,Thiago A; Rocha,Carlos F. D. |
| The anurofauna inhabiting higher montane Atlantic forest areas in southeastern Brazil, which often attain heights of more than 2000 m, is still insufficiently known. In this study, we present data on anuran species composition and abundances in two high-altitude (i.e. > 1000 m) sites within the Parque Estadual dos Três Picos (PETP), in the state of Rio de Janeiro. Field surveys were done at altitudes between 1100 and 1900 m above sea level. We recorded 35 species during our study, adding 22 records to the set of anuran species previously known to occur within the PETP. The stability of the species accumulation curve, as well as the richness estimations, showed that the sampling methodology employed and the total sampling effort were appropriate to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Altitude; Amphibian; Community; Serra dos Órgãos mountains; Species richness. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000400007 |
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| RAMÍREZ-GUTIÉRREZ,MARTÍN; TAPIA-GARCÍA,MARGARITO; RAMOS-SANTIAGO,EDUARDO; ULLOA,RAÚL. |
| San Agustín bay is one of the most important bays in the Huatulco National Park because it includes the broadest coral reef surface of this park, which supports a great diversity of fish species. The importance of the present work is that describes quantitatively, for first time, the fish assemblage of this reef area. Visual censuses were realized on transects, according to the coral reef size, on coral and rocky reefs, and coral rubble environments. 64 species, 46 genus and 29 families were registered. Seasonal variation in fish assemblage was observed; reflecting the influence of pelagic shoaling species associated with the Gulf of Tehuantepec upwelling, during the dry season. Thus species were Selar crumenophthalmus, Caranx caninus, and Sardinops... |
| Tipo: Journal article |
Palavras-chave: Huatulco National Park; Coral reef; Diversity; Density; Community. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2007000400003 |
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| MADANES,NORA; FISCHER,SYLVIA; VICARI,RICARDO. |
| We studied the effects of fire on the structural attributes of a Spartina densiflora salt marsh. The study was carried out from November 1995, spring (N95S) to December 1996, late spring (D96LS). In November 1995, we installed 37 permanent plots. In January 1996, 32 of the plots were accidentally burned (B) and the remaining were not burned (NB). Vegetation on each plot was sampled seasonally, plant species were identified and cover-abundance was estimated. We analyzed and compared seasonal variations in plant species richness, diversity, composition and cover-abundance in burned and non-burned plots. In addition, we analyzed variations in biological types (forbs, graminoids) and types of life cycles (annuals, perennials) in B and NB plots before and after... |
| Tipo: Journal article |
Palavras-chave: Spartina densiflora; Salt-marsh; Fire; Community. |
| Ano: 2007 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2007000200005 |
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| Registros recuperados: 56 | |
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