108 Works

Replication data for: Generic lures attract cerambycid beetles in a tropical montane rain forest in southern China

Jacob Wickham & Rhett Harrison
This dataset was moved to: https://doi.org/10.34725/DVN/25248The attraction of cerambycid beetles to 10 known cerambycid pheromones was tested in a tropical montane rain forest in southern China. From 28 May to 25 June 2010, 1,526 cerambycids representing 71 species were captured in pheromone-baited traps, with 14 species accounting for 92% of the specimens. Test compounds with a 3-hydroxyalkan-2-one or 2,3-alkanediol motif attracted significant numbers of both sexes for eight species in the subfamily Cerambycinae, including species...

Replication data for: Can Rural Development Projects Generate Social Capital? A Case Study of Ricinodendron heudelotii Kernel Marketing in Cameroon

Hannes Cosyns
This dataset was moved to: https://doi.org/10.34725/DVN/25202Social capital is an important pillar of farmersâ livelihoods and its importance for sustainable rural development has been recognised. Nevertheless, the creation of social capital through external interventions remains challenging. This study investigated the generation of social capital within a rural development project of the World Agroforestry Centre to promote Rici nodendron heudelotii (Baill) Pierre ex Pax. kernel commercialisation. Combining quantitative and qualitative measurement techniques, the change in social capital...

Replication data for: Farmer attitudes and intentions towards trees in cocoa (Theobroma cacao L.) farms in Coˆte d’Ivoire

Amos Gyau
This dataset was moved to: https://doi.org/10.34725/DVN/25260Cocoa yields in CoËte dâIvoire are low and falling each year, partly as a result of full-sun cropping systems. Thus, interest is now high in establishing sustainable cocoa agroforestry systems through the reintroduction of shade trees. This article uses data collected from a sample of 400 cocoa farmers in the Soubre´ region of CoËte dâIvoire to analyze farmersâ current and intention to plant trees in their cocoa farms in the...

Replication data for: Impact of forestland tenure changes on forest cover, stocking and tree species diversity in Amani Nature Reserve, Tanzania

Mathew Mpanda
This dataset was moved to: https://doi.org/10.34725/DVN/24924The aim of the present study was to evaluate the impact of changes from private to state tenure on forest resources for three blocks in Amani Nature Reserve. The resource changes were determined in terms of forest cover, forest stocking and tree species diversity over a period of six to eight years. When considering the three blocks as one entity one may in general maintain that there have been positive...

Replication data for: Locating REDD: A global survey and analysis of REDD readiness and demonstration activities

Gillian A. Cerbu, Brent M. Swallow & Dara Y. Thompson
This dataset was moved to: https://doi.org/10.34725/DVN/25217Mechanisms that support reduced emissions from deforestation and forest degradation (REDD/REDD+) have potential to counteract a large share of global greenhouse gas emissions if implemented effectively across the tropics. In 2007 the conference of parties to the United Nations Framework Convention on Climate Change called upon parties and international organizations to promote REDD through investments in capacity building and demonstration activities. This prompted many new actors to become involved in...

Replication data for: Ensemble forecast of climate suitability for the Trans-Himalayan Nyctaginaceae species

Sailesh Ranjitkar, Jianchu Xu, Krishna K Shrestha & Roeland Kindt
This dataset was moved to: https://doi.org/10.34725/DVN/25296We forecast climate space of two species found in different environmental condition using ensemble modelling approach. Variance inflation factor method used for variable selection was successful in ecological niche modelling. Ensemble of different modelling algorithms delimits the climate space of the focal organisms. Surrogate of arid climate is determinant for suitable habitat of the focal organism. Dry valleys likely to provide route of dispersal of plant species occurring in the...

Replication data for: The \"model farmer\" extension approach revisited: Are expert farmers effective innovators and disseminators?

This dataset was moved to: https://doi.org/10.34725/DVN/25729How farmers can better access knowledge and technology for improving agricultural productivity is a key challenge, particularly given the growing complexity of agriculture and the decline of publicly funded extension systems. Extension programmes often make use of farmer to farmer extension and choose âmodel farmersâ, also called âmasterâ, âleadâ or âexpertâ farmers, to host demonstrations and train their fellow farmers on improved agricultural practices and innovations. Chosen on the basis...

Replication data for: Rethinking Rights and Interests of Local Communities in REDD+ Designs: Lessons Learnt from Current Forest Tenure Systems in Cameroon

E. G. Bachange Ngendakumana Serge
This dataset was moved to: https://doi.org/10.34725/DVN/24980It is increasingly becoming clear that reforms based on the claims of local forest communities regarding the right to natural resources will be needed to adequately address issues of sustainable development in Sub-Saharan Africa. The current institutional and policy frameworks of Cameroon and other SSA countries have bestowed exclusive land tenure rights to the State, while curtailing access of local farmers to forest and forest-based resources on which they depend...

Crop Price Indemnified Loans for Farmers: A Pilot Experiment in Rural Ghana

Dean Karlan, Ed Kutsoati, Margaret McMillan & Christopher Udry
This paper presents the results of a financial intervention using loans, of which 50% is forgiven given a drop in crop prices below a certain threshold, in Ghana intended to investigate 1) the role of crop-price risk in reducing demand for credit among farmers and 2) how risk mitigation changes farmers' investment decisions. After baseline survey was taken and farmers were randomized into treatment and control, 20 meetings were set up in order to inform...

Return on Investment of RWH technologies in dryland areas of Eastern region of Kenya

Kennedy Mwetu, Andrew Gerard, Maimbo Malesu, Mick O'Neill, Jonathan Muriuki, Alex Oduor, Benjamin Danga, Patrick Kariuki, Verrah Otiende & Paul Baraka
This dataset was moved to: https://doi.org/10.34725/DVN/27800The research study evaluated the effectiveness of rainwater harvesting technologies in Eastern Kenya through identifying conditions under which these technologies provide economic opportunities for smallholder farmers in the dryland areas of Eastern Kenya. Key variables in the study were: RWH technologies being used; Household sources of income; educational background of household members. Data collection was done through household survey questionnaires. The overall goal of this research was to improve the...

Extending - Agroforestry Food Security Programe

Gudeta Sileshi
This dataset was moved to: https://doi.org/10.34725/DVN/26566Agroforestry Food Security Programme (AFSP) is being funded by the Flanders International Cooperation Agency (FICA). The programme is being implemented in Malawi in the districts of Mzimba South and Kasungu and runs between 2013 to 2015. The project is an extension of the AFSP II project that is funded by IrishAid and currently being implemented in Mzimba North, Dedza and Thyolo districts in Malawi. The Programme aims to 10,000 rural...

Microcredit Impacts: Evidence from a Randomized Microcredit Program Placement Experiment by Compartamos Banco

Manuela Angelucci, Dean Karlan & Jonathan Zinman
We use a clustered randomized trial, and over 16,000 household surveys, to estimate impacts at the community level from a group lending expansion at 110 percent APR by the largest microlender in Mexico. We find no evidence of transformative impacts on 37 outcomes (although some estimates have large confidence intervals), measured at a mean of 27 months post-expansion, across six domains: microentrepreneurship, income, labor supply, expenditures, social status, and subjective well-being. We also examine distributional...

Germplasm Collection Gaps and Species Richness of Wild Relatives of Important Root, Tuber and Banana Crops.

Nora P Castañeda Álvarez, Colin K Khoury, Chrystian C Sosa, Harold A Achicanoy & Vivian Bernau
The wild relatives of crops represent a major source of valuable traits for crop improvement. These resources are threatened by habitat destruction, land use changes, and other factors, requiring their urgent collection and long-term availability for research and breeding from ex situ collections. We propose a method to identify gaps in ex situ collections (i.e. gap analysis) of crop wild relatives as a means to guide efficient and effective collecting activities.

Replication data for: Productivity of Acacia angustissima accessions at two sites in the subtropiProductivity of Acacia angustissima accessions at two sites in the subtropics

Isaac Nyoka
This dataset was moved to: https://doi.org/10.34725/DVN/26088Low leaf biomass yields coupled with small land sizes are some of the major constraints faced by smallholder farmers that grow protein-rich fodder trees and shrubs. Given these challenges, availability of highly productive seed sources would be important to enable farmers to produce leaf fodder in sufficient quantities. 14 accessions of Acacia angustissima were evaluated for leaf, wood and total biomass production at two subtropical sites with uni-modal rainfall in...

Replication data for: Integrated Natural Resource Management in the Highlands of Eastern Africa: From Concept to Practice

Laura German, Jeremias Mowo, Tilahun Amede & Kenneth Masuki
This dataset was moved to: https://doi.org/10.34725/DVN/25333This book documents a decade of research, methodological innovation, and lessons learned in an eco-regional research-for-development program operating in the eastern African highlands, the African Highlands Initiative (AHI). It does this through reflections of the protagonists themselves—AHI site teams and partners applying action research to development innovation as a means to enhance the impact of their research. The book summarizes the experiences of farmers, research and development workers and policy...

Assessing the effectivness of on-farm conservation projects in the High Andes

M. Bellon & E. Gotor
The objective was to assess the effectiveness of five on-farm conservation projects involving native crops maintained by smallholder farmers in the High Andes of South America. The data set includes variables from a household survey that took place in 3 countries: Ecuador, Peru, Bolivia. Househould survey with a stratified random sample of 748 households. The survey elicited information on project participation, application of the options provided by project interventions and examples of how they were...

Western Kenya Integrated Ecosystem Management Project (WKIEMP) Ex Post Household Survey

, Sinja Judith &
This dataset was moved to: https://doi.org/10.34725/DVN/26664This study assessed the economic impact of the WKIEMP project on households in the Nyando and Yala river basins of Western Kenya. The survey included 362 households which together formed three groups – those formally involved in WKIEMP, those informally involved in WKIEMP and those not involved in WKIEMP. The data captured included variables on household characteristics and details of adoption behaviour of the interventions offered by the project. Further...

CAFNET Local knowledge studies of trees in coffee systems in East Africa

Genevieve Lamond, Anita Hummel, Nelson Muiri, Ruth Nansamba, Ronald Muchelo, Lindsey Elliot, Emilie Smith Dumont, Edith Gathoni, Fergus L. Sinclair, Fabrice Pinard & Philippe Vaast
This dataset was moved to: https://doi.org/10.34725/DVN/25331CAFNET research has elicited local agro-ecological knowledge from coffee growing areas within the vicinity of forest reserves in Kenya, Uganda and Rwanda. Knowledge was acquired from over 200 farmers in a stratified purposive sample, using a knowledge based systems approach. Ranking and phenology survey Building on the local knowledge studies and on-farm tree inventories, we designed a ranking and phenology survey to be applied across the 100 farms in the...

Replication data for: Determinants of farmers’ tree planting behavior in the North West region of Cameroon: the case of Prunus Africana.

Amos GYAU
This dataset was moved to: https://doi.org/10.34725/DVN/24999Poor households in Cameroon rely on trees and tree-based products like the bark of Prunus africana(Hook.f.) Kalman (Rosaceae) (henceforth called Prunus) that are harvested from the wild.Due to unsustainable bark harvesting practices, the European Union, which is Cameroonâs main market for Prunus bark, banned its importation. To reduce pressure on existing natural stock, research and development organizations introduced innovations to encourage farmers to plant Prunus trees. The research reported in...

Replication Data for: Floristic diversity of Piliostigma asssociations in relation to latitudinal gradient, soil and climate variables in Burkina Faso, West Africa

SAVADOGO PATRICE YELEMOU BARTHÉLEMY
This dataset was moved to: https://doi.org/10.34725/DVN/25138We examined the floristic composition and its relationship with environmental factors across 80 floristic relevés of Piliostigma stands distributed along a north-south gradient in Burkina Faso. Various diversity indices were computed. Detrended Correspondence Analysis and Canonical Correspondence Analysis (CCA) were used to explore the relationship between species occurring in Piliostigma stands and environmental variables. The results showed that Piliostigma communities show only limited variation in species composition among sites. The...

Replication data for: Would strictly enforced forestry regulations affect farmers’ stated intentions to plant indigenous fruits trees? Insights from Cameroon

This dataset was moved to: https://doi.org/10.34725/DVN/28239From theory it is expected that forestry laws and regulations affect the adoption of agroforestry technologies, such as planting of indigenous fruit trees. These trees are important sources of nutrients and income to thousands of farmers. However data on farmers’ perceptions and behaviour towards such policy instruments are scarce and contradictory. Based on data collected from 394 households in Cameroon, using a structured questionnaire, farmers’ awareness, perception and willingness to...

Failed Season drought probability

Peter G Jones & Philip K Thornton
This map estimates the drought probability based on the water balance and simulated daily rainfall. A failed season occurs when there is insufficient water to meet crop requirements. The failed season algorithm (FSA) has been used in a number of application including Hyman et al. 2008.

Does Price Matter in Charitable Giving? Evidence from a Large-Scale Natural Field Experiment

Dean Karlan & John A. List
This paper presents the results of a large-scale natural field experiment testing changes in revenue per solicitation and response rates given different types and levels of matching grants/gifts conditional on charitable giving. This is in order to provide insight to research in fundraising models and measures of non-market valuation for cost-benefit analyses. Of a sample of 50,083 individuals who have given to the organization since 1991, randomized and assigned 67% into "match" treatment group and...

Replication data for: Alemagi et al 2014 Intensification of Cocoa Agroforetry systems as REDD Strategy in Cameroon -IJAS

Dieudonne Et Al. Alemagi
This dataset was moved to: https://doi.org/10.34725/DVN/27183Tree planting and the use of inputs within cocoa agroforestry systems are key intensification pathways for enhancing the contribution of these systems to REDD+. However, scholarship on the hurdles, motivations, and challenges pertaining to intensification of these systems remains surprisingly scanty. A questionnaire addressing these knowledge gaps was administered to 461 cocoa farmers randomly selected from 10 communities in the South Region of Cameroon. The lack of technical support was...

Replication data for: Alemagi et al 2014 REDD+ readiness process in Cameroon: an analysis of multi-stakeholder perspectives

Dieudonne Et Al. Alemagi
This dataset was moved to: https://doi.org/10.34725/DVN/27185Cameroon has been a keen participant in Reducing Emissions from Deforestation and Forest Degradation plus conservation, sustainable management of forests and enhancement of carbon stocks (REDD+) negotiations since 2005 and has engaged in activities to enhance the implementation of REDD+. This article reviews progress on REDD+ readiness in Cameroon based on a multiple REDD+ functions framework. Results show that some progress has been made in terms of planning and coordination,...

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  • 2014
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