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| Registros recuperados: 53 | |
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| Isaac, Marney E.; Department of Physical and Environmental Sciences and Center for Critical Development Studies, University of Toronto Scarborough; Department of Geography, University of Toronto; marney.isaac@utoronto.ca; Anglaaere, Luke C. N.; Forestry Research Institute of Ghana;; Akoto, Daniel S.; Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology;; Dawoe, Evans; Faculty of Renewable Natural Resources, Kwame Nkrumah University of Science and Technology;. |
| Environmentally induced farmer migration is an important livelihood strategy, yet little is known of the effects on the destination region agroecosystem information networks and management practices. In the forest-savanna transition zone (Brong Ahafo Region) of Ghana, where migration from northern regions (migrant) and from neighboring regions (settler) is active, we chart the role of migrant famers and the type of agroecosystem management practices embedded in information networks using a social networks approach. Based on empirical network data from 44 respondents across three communities, we illustrate a diffuse information network, with variable tie frequency between settlement categories (local, settler, or migrant) of farmers. The cohesion of this... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Agricultural innovation; Agroecology; Agroforestry; Environmental change; Ghana; Natural resource management; Social network analysis; Social-ecological memory; Theobroma cacao. |
| Ano: 2014 |
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| Morinville, Cynthia; The University of British Columbia, Institute for Resources, Environment and Sustainability; cynthia.morinville@gmail.com; Harris, Leila M; The University of British Columbia, Institute for Resources, Environment and Sustainability; lharris@ires.ubc.ca. |
| Water governance debates have increasingly recognized the importance of adaptive governance for short- and long-term sustainability, especially with respect to increasing climate unpredictability and growing urbanization. A parallel focus on enhancing community participation pervades international development recommendations and policy literature. Indeed, there are often implicit and explicit connections made between the participatory character of water governance institutions and their adaptive capacity. The social-ecological systems literature, however, has also urged caution with respect to embracing panaceas, with increasing calls to be attentive to the limitations of proposed “solutions.” We discuss the parallels between the... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Adaptive governance; Ghana; Local Water Boards; Participatory governance; Water governance. |
| Ano: 2014 |
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| Isaac, Marney E; University of Toronto; marney.isaac@utoronto.ca; Erickson, Bonnie H; University of Toronto;; Quashie-Sam, S. James; Kwame Nkrumah University of Science and Technology, Ghana;; Timmer, Vic R; University of Toronto;. |
| Access to knowledge on farm management practices is essential for the maintenance of productive agroforestry systems. Farmers who lack the means to acquire farming knowledge from formal sources often rely on information within their informal social networks. However, little research has explored the explicit structure of farmer communication patterns. We examined advice network structures by using farmer attributes, i.e., kin relationships, community involvement, and imitation, to characterize structural positions and investigated the consequences of such structure on farming practices in cocoa agroforestry systems in Ghana, West Africa. Furthermore, we used a multicommunity approach; we constructed networks for four communities to increase replication... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Agroforestry; Farm management; Ghana; Social network analysis; Theobroma cacao. |
| Ano: 2007 |
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| Smeenk, C.; Godfrey, L.R.; Williams, F.L.. |
| The potto was first recorded and figured by Willem Bosman in 1704. The name Lemur potto Statius Müller, 1776 is exclusively based upon Bosman’s account and figure, which are reproduced in full. The type locality is Elmina on the Gold Coast, the present Ghana. No type specimen was collected. The early pottos in the Leiden Museum are listed and their history is given, with special reference to the animals obtained by H.S. Pel. The publications on this material are reviewed. An adult female, RMNH 39375: mounted skin and skeleton acquired by Pel in 1849 at Dabocrom (Dabo Krom) near Sekondi, coastal Ghana, is designated the neotype of Lemur potto Statius Müller, 1776. The neotype is extensively described and figured. Taxonomic notes on the putative (sub)species... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Primates; Lorisidae; Perodicticus potto; History; Nomenclature; Neotype; Ghana; Africa; 42.82; 42.70. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/198497 |
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| Bruggen, A.C. van; Winter, A.J. de. |
| Micractaeon kakamegaensis Verdcourt, 1993 (type loc. Kenya, Kakamega Forest), is a synonym of Pseudopeas koptawelilense Germain, 1934 (type loc. Kenya, Mt. Elgon); the proper name is therefore Micractaeon koptawelilensis (Germain, 1934). New anatomical data are supplied, more or less confirming classification in the family Ferussaciidae. The shell is subject to some considerable variation in size, shape and sculpture. The species appears to be widely distributed in various types of forest in tropical Africa (Ghana, Cameroon, eastern and south-eastern Zaïre, Kenya, Malawi, and eastern Zambia); hypsometrical distribution is generally from c. 950 m to c. 2300 m, although in Ghana it has been collected at altitudes of between < 250 and c. 700 m. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Gastropoda; Pulmonata; Ferussaciidae; Micractaeon; Africa; Ghana; Cameroon; Zaïre; Kenya; Zambia; Mala?i; Taxonomy; Distribution; 42.73. |
| Ano: 1995 |
URL: http://www.repository.naturalis.nl/record/319133 |
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| NAGANO, Daisuke; SIVAKUMAR, Thillaiampalam; DE DE MACEDO, Alane Caine Costa; INPANKAEW, Tawin; ALHASSAN, Andy; IGARASHI, Ikuo; YOKOYAMA, Naoaki; 五十嵐, 郁男; 横山, 直明. |
| In the present study, we screened blood DNA samples obtained from cattle bred in Brazil (n=164) and Ghana (n=80) for Babesia bovis using a diagnostic PCR assay and found prevalences of 14.6% and 46.3%, respectively. Subsequently, the genetic diversity of B. bovis in Thailand, Brazil and Ghana was analyzed, based on the DNA sequence of merozoite surface antigen-1 (MSA-1). In Thailand, MSA-1 sequences were relatively conserved and found in a single clade of the phylogram, while Brazilian MSA-1 sequences showed high genetic diversity and were dispersed across three different clades. In contrast, the sequences from Ghanaian samples were detected in two different clades, one of which contained only a single Ghanaian sequence. The identities among the MSA-1... |
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Palavras-chave: Babesia bovis; Brazil; Ghana; MSA-1; Thailand. |
| Ano: 2013 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4014 |
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| Koranteng, K.A.. |
| Using two-way indicator species analysis and detrended correspondence analysis, species on the continental shelf and upper slope of Ghana were classified into six assemblages. The structure of the assemblages is determined primarily by depth and type of sediment on the seabed. There are clear faunal discontinuities around 30-40 m, 100 m and 200 m depth. The dynamics of the assemblages are influenced by physico-chemical parameters of the water masses, mainly temperature, salinity and dissolved oxygen which are periodically modified by the seasonal coastal upwelling that occurs in the area. The observed changes in the composition and relative importance of species in the assemblages can be related to increased fishing activity and environmental forcing. |
| Tipo: Journal Contribution |
Palavras-chave: Species assemblages; Ghana; Slop; Structure and dynamics; Demersal fish; Continental shelf. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/234 |
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| Diao, Xinshen; Sarpong, Daniel Bruce. |
| An economywide, multimarket model is constructed for Ghana and the effects of agricultural soil erosion on crop yields are explicitly modeled at the subnational regional level for eight main staple crops. The model is used to evaluate the aggregate economic costs of soil erosion by taking into account economywide linkages between production and consumption, across sectors and agricultural subsectors. To fill a gap in the literature regarding economic cost analysis of soil erosion, this paper also analyzes the poverty implications of land degradation. The model predicts that land degradation reduces agricultural income in Ghana by a total of US$4.2 billion over the period 2006–2015, which is approximately five percent of total agricultural GDP in these ten... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Ghana; Agricultural Soil Loss; Economywide modeling; Land Economics/Use. |
| Ano: 2007 |
URL: http://purl.umn.edu/42416 |
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| Abdulai, Awudu; Huffman, Wallace E.. |
| This paper employs a stochastic frontier model to examine profit inefficiency of rice farmers in the Northern Region of Ghana using farm-level survey data. The efficiency index, based on a half-normal distribution of the stochastic error term is related to farm and household characteristics. The empirical results show that farmers' human capital represented by the level of schooling contributes positively to production efficiency, suggesting that investment in farmers' education improves their allocative performance. Access to credit and greater specialization in rice production, are found to be positively related to production efficiency. A farmer's participation in nonfarm employment and being older, however, reduce production efficiency. Farmers... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Africa; Ghana; Production efficiency; Profit frontier; Rice; Crop Production/Industries. |
| Ano: 1998 |
URL: http://purl.umn.edu/18271 |
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| Morrissey, Oliver; Osei, Robert; Lloyd, Tim A.. |
| An important feature of aid to developing countries is that it is given to the government. As a result aid has the potential to affect budgetary behaviour. Although the (albeit limited) aid-growth literature has addressed the effect of aid on policy, it has tended to neglect the effect of aid on the fiscal behaviour of governments. While fiscal response models have been developed to examine the effects of aid on fiscal aggregates - taxation, expenditure and borrowing - the underlying theory is ad hoc and empirical methods used are subject to severe limitations. This paper applies techniques developed in the "macroeconometrics" literature to estimate the dynamic structural relationship between aid and fiscal aggregates. Using vector autoregressive methods,... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Aid; Fiscal Response; Ghana; International Development; International Relations/Trade; F35; O23; O11; O55. |
| Ano: 2002 |
URL: http://purl.umn.edu/26226 |
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| Schultz, T. Paul. |
| Various household survey indicators of adult nutrition and health status are analyzed as determinants of individual wages. However, survey indicators of health status may be heterogeneous, or a combination of health human capital formed by investment behavior and variation due to genotype, random shocks, and measurement error, which are uncontrolled by behavior. Although there are no definitive methods for distinguishing between human capital and genetic variation in health outcomes, alternative mappings of health status, such as height, on community health services, parent socioeconomic characteristics, and ethnic categories may be suggestive. Instrumental variable estimates of health human capital and residual sources of variation in measured health... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Health human capital; Wage productivity; Brazil; Ghana; Cote DIvoire; Health Economics and Policy; I12; J24; O12. |
| Ano: 2005 |
URL: http://purl.umn.edu/28532 |
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| Registros recuperados: 53 | |
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