cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.7910/dvn/24917
title: Replication data for: No appropriate technology so far for Ricinodendron heudelotii (Baill. Pierre ex Pax) processing in Cameroon: Performance of mechanized kernel extraction

description: This dataset was moved to: https://doi.org/10.34725/DVN/24917Ricinodendron heudelotii kernels are an important source of income for rural wome n in the humid tropics of Africa. Manual kernel extraction is time consuming and efforts have been made to mechanize the process. However, mechanical damage to kernels remains an issue. Within the socioeconomic and resource ecology context in the central region of Cameroon, a prototype machine for extracting njansang kernels was developed and has been tested since 2007, then evaluated using a learning selection model. Surveys with users and non-users suggested a shift towards male and younger users. The advantages of rapid kernel extraction are partly offset by the requirement to sort out broken kernels, leading to a total time requirement of 60.87 min for manual processing and 2.08 + 39.56 min for mechanical extraction + manual sorting. The technology needs further improvement to deliver the expected increase in labour efficiency and economic advantages for rural women. The study was carried out in the small community of Epkwassong, 42 km from Ayos city, Nyong-et-Mfoumou Division in the Central region of Cameroon. Epkwassong was chosen because njansang is common here and women in the village have a good knowledge of its exploitation. The njansang producer group âFaâa Si Obeâ is well-organized and has been selling njansang as a group since 2005. In terms of socio-economic and biophysical characteristics, Epkwassong is in many ways representative of the humid forest zone of Cameroon, and even of the Congo Basin. Epkwassong is located in a forest zone with bimodal rainfall l(1500 to 2000 mm per year in average) characterized bya Guinean climate with 4 seasons (main dry season from December to February; main rainy season from March to June; short dry season from July to August; short rainy season from September to November). The average temperature is 25Â°C and the main economic activities of the area are agriculture, artisanal fishing in the rivers Nyong-et-Mfoumou and hunting. Commercialization of njansang is the fourth most important source of income after plantain, cocoa and cocoyam. R. heudelotii in this zone is typically found in abandoned farmland and is often retained when land is cleared for farming because it improves soil fertility and provides shade required for cocoa cash cropping.
DOI: 10.7910/dvn/24999
title: Replication data for: Determinants of farmersâ tree planting behavior in the North West region of Cameroon: the case of Prunus Africana.

description: 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 Cameroonâs 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 this article analyses farmer characteristics which influence their Prunus planting behaviour, and examines their main problems. Results from interviewing 154 farmers who have been trained on tree domestication techniques suggest that male farmers and those who bought their land have planted Prunus in their farms. We conclude that Prunus information and planting campaigns can be effective if they are accompanied with policies which influence better prices, supply of seeds and seedlings, and address land tenure issues.
DOI: 10.7910/dvn/24980
title: Replication data for: Rethinking Rights and Interests of Local Communities in REDD+ Designs: Lessons Learnt from Current Forest Tenure Systems in Cameroon

description: 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 for a living. It is therefore unlikely that successful forest conservation and implementation of REDD+ can be possible without recognition and enforcement of customary tenure.This paper aimed to sense smallholders’ perceptions on rights and risks in the current forestry policy arena linked with the climate change debate in Cameroon. Using semistructured questionnaires and focus group discussions about 7 key informants and 66 community forest users were investigated about the current tenure systems and the risks of related conflicts. Findings from the field provide empirical evidence on the sources of conflict. Based on failures and positive elements of community forestry, the lessons learnt could enrich the on-going REDD safeguard debates and serve as guiding milestones towards the effectiveness of this initiative across the cou ntry and the continent
DOI: 10.5440/1123668
title: Remote sensing-based characterization, 2-m, Plant Functional Type Distributions, Barrow Environmental Observatory, 2010

description: Remote sensing-based characterization of plant functional type distributions at the Barrow Environmental Observatory. Dataset DOI: https://doi.org/10.5440/1123668 Additional details are available in the associated paper Langford, et. al. 2016. Mapping Arctic Plant Functional Type Distributions in the Barrow Environmental Observatory Using WorldView-2 and LiDAR Datasets. Remote Sens. 2016, 8, 733. http://dx.doi.org/10.3390/rs8090733
DOI: 10.5063/f10v89rp
title: STONE: Synthesis of Timings Observed in iNcrease Experiments

description: The Synthesis of Timings Observed in iNcrease Experiments (STONE) database includes data from over 37 warming experiments focused explicitly on assessing phenological change with temperature increases. Only studies that gave data on phenological shifts and the temperature change were included. These data have been used in a study comparing experimental and observational results of temperature change (Wolkovich et al.) and in a study linking performance and a species' ability to track climate (Cleland et al.). See Wolkovich et al. for extensive details on the data.
DOI: 10.14457/cu.the.2010.509
title: อิทธิพลของรูปแบบความผูกพันต่อลักษณะนิสัยการให้อภัย : ทวิโมเดลแข่งขันโดยมีตัวแปรการรู้ซึ้งถึงความรู้สึกของผู้อื่นและการหมกมุ่นครุ่นคิดเป็นตัวแปรส่งผ่าน /
DOI: 10.14457/cu.the.2010.526
title: แนวคิดสิทธิมนุษยชนในพระไตรปิฎก : หมวดพระสุตตันตปิฎก
DOI: 10.7910/dvn/24919
title: Allanblackia Experimental Plots

description: This dataset was moved to: https://doi.org/10.34725/DVN/24919N/A
DOI: 10.7910/dvn/24964
title: Replication data for: Yield and household consumption of Rhododendron arboreum as a fuelwood species in Eastern Nepal

description: This dataset was moved to: https://doi.org/10.34725/DVN/24964Contribution of R. arboreum to total annual fuelwood consumption quantitatively assessed. Removal of biomass of R. arboreum was f ound to be higher than biomass addition, threatening the species distribution. Growth ring analysis revealed very slow increment in diameter and hence in biomass. Fuelwood harvesting, slow increment and slow growth identified as main causes of declining biomass.
DOI: 10.7910/dvn/25138
title: Replication Data for: Floristic diversity of Piliostigma asssociations in relation to latitudinal gradient, soil and climate variables in Burkina Faso, West Africa

description: 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 first two axes of the DCA together explained 16.5% of the floristic variation. The CCA showed that climatic variables explain 42% of the species variance. The Piliostigma reticulatum asssociation is adapted to reduced rainfall and sandy soil, whereas the P. thonningii association occurs preferentially on clay soil.
DOI: 10.7910/dvn/25141
title: Replication data for: Methodological approaches for the selection of genotypes in a progeny trial of Dacryodes edulis (G. Don) H. J. Lam in Cameroon

description: This dataset was moved to: https://doi.org/10.34725/DVN/25141The World Agroforestry Centre (ICRAF) initiated a program in Cameroon for the selection of improved genotypes of Dacryodes edulis for domestication. There are major challenges in such selection because superior performance of individual trees may be based on site conditions rather than on genetic differences. Open-pollinated seeds were collected from mother trees in four provenances in Cameroon and planted in a progeny trial at Minkoameyos, Cameroon. Progeny from the same mother tree are referred to as family. After one year of growth in the field, growth traits were measured annually for five years and fruit traits were measured in two successive years. Three methodological approaches were investigated: family and within-family selection (combined selection), ranking for phenotypic selection and correlation for multi-trait and early selection. Variation in growth and fruit traits among families was not significant for most provenances, indicatin g that family selection would not be effective for the selection of genotypes in the trial. Phenotypic selection resulted in the retention of a small number of individuals of all families in the trial. There were strong positive correlations between fruit traits and between fruit and growth traits, while negative correlations were found between fruit traits and yield. The correlations indicate that selecting for one fruit trait may also improve the other fruit traits but reduce fruit yield. Positive and significant juvenile-mature correlations for growth were also found in this trial, indicating that early selection may be possible based on growth. Based on these results, phenotypic selection is recommended in the progeny trial for the domestication program in Cameroon and further research on early selection is needed as the trial advances in age.
DOI: 10.25405/data.ncl.12555620
title: Trans241CoevMatrices.tar.gz

description: Test dataset for https://github.com/chrisAta/csn_workflow
DOI: 10.25405/data.ncl.12555620.v1
title: Trans241CoevMatrices.tar.gz

description: Test dataset for https://github.com/chrisAta/csn_workflow
DOI: 10.7910/dvn/25130
title: Replication data for: Developing indicators of economic value and biodiversity loss for rubber plantations in Xishuangbanna, southwest China: A case study from Menglun township.

description: This dataset was moved to: https://doi.org/10.34725/DVN/25130Xishuangbanna has been largely transformed from biodiverse natural forests and mixed-use farms into monoculture rubber plantations in just twenty years. This conversion has expanded into forests previously protected by the community and onto marginal sites at high-elevation. Market-based ecosystem payments, especially carbon financing, are potential tools to prevent further forest loss in China. Here, we compare rubber net present value (NPV), carbon sequestration, and seed-plant species diversity for Xishuangbanna given three land-use scenarios: Business-As-Usual (BAU), Economic Oriented Scenario (EOS) and Conservation Oriented Scenario (COS) using a previously published spatial map of rubber profitabilit y. The EOS achieved the greatest rubber profit but caused substantial reductions in natural forest area, biodiversity and carbon stocks. The EOS also requires substantial immigration of workers into a remote and ecologically important region with little social infrastructure for basic security, food security, health-care and education, causing frequently ignored costs. As expected, the COS will maintain the highest levels of natural forest area, sequester 57% more carbon, and 71% more biodiversity than EOS. Given the conservation value of the carbon stores and rich biodiversity residing in Xishuangbanna's natural forests, reducing rubber NPV only marginally would probably cost less than attempting to recover these resources. We recommend that rubber plantations be limited to established, productive lowland areas whilst protecting intact high-elevation forest and reforesting low-productivity plantations. These actions will enhance carbon sequestration and biodiversity conservation. Management policies focused solely on profits, like the EOS scenario, will fail to sustain the entire range of natural resources and ecosystem services. The prices in the carbon market would have to be considerably larger than they are currently to compete with the profitability of rubber.
DOI: 10.7910/dvn/25204
title: Replication data for: Who views what? Impact assessment through the eyes of farmers, development organization staff and researchers

description: This dataset was moved to: https://doi.org/10.34725/DVN/25204The present study assesses the impact of a rural development project on farmers’ livelihoods, as perceived by farmers, development organization staff and researchers. The project concerned, aimed to increase small-scale farmers’ financial benefits by promoting the commercialization of Ricinodendron heudelotii (Baill.) Pierre ex Pax kernels (njansang) in Cameroon. The three parties evaluated the impacts of the project, over the 2005–2010 period, through indicators embedded in the Sustainable Livelihood Framework (natural, financial, human, social and physical assets). Project households were compared with control households. Results show that farmers’ and development organization staff’s views were aligned regarding the relative importance of the indicators to measure success (with overlaps &gt; 85%). The three stakeholders evaluated changes of farmers’ livelihood indicators over the 2005–2010 period on 5-point Likert items. All three stakeholders stated that most indicators improved significantly more in project than in control households (p less than 0.001). Development organization staff probably overestimated changes induced by project interventions as they perceived significantly larger changes as compared with farmers and researchers (p less than 0.05). Our study highlights the differences between impact perceived by farmers, development organization staff and researchers and helps to build the knowledge base of the potential and reliability of participatory evaluation approaches. Furthermore, an approach to assess impacts on people’s livelihood is proposed, combining the strengths of participatory evaluation with those of classic evaluation methods.
DOI: 10.7910/dvn/24940
title: Replication data for: Correspondence in forest species composition between the Vegetation Map of Africa and higher resolution maps for seven African countries

description: This dataset was moved to: https://doi.org/10.34725/DVN/24940Question: How well does the forest classification systemof the 1:5,000,000 vegetation map of Africa developed by Frank White correspond with classification systems and more extensive information on species assemblages of higher resolution maps developed for Ethiopia, Kenya,Malawi, Rwanda, Tanzania, Uganda and Zambia? Methods: We reviewed various national and sub-national vegetation maps for their potential in increasing the resolution of the African map. Associated documentation was consulted to compile species assemblages, and to identify indicator species, for national forest vegetation types. Indicator species were identified for each regional forest type by selecting those species that, among all the species listed for the same phytochorion (regional centre of endemism),were listed only for that forest type. For each of the national forest types, we counted the number of indicator species of the anticipated regional type. Floristic relationships (expressed by four different ecological distancemeasures) among national forest types were investigated based on distance-based redundancy analysis, permutational multivariate analysis of variance (PERMANOVA) using distance matrices and hierarchical clustering. Results: For most of the national forests, the analysis of indicator spec ies and floristic relationships confirmed the regional classification system for the majority of national forest types, including the allocation to different phytochoria. Permutation tests confirmed allocation of national forest types to regional typologies, although the number of possible permutations limited inferences for the Zambezian and Lake Victoria phytochoria. Two forest types from Ethiopia and Kenya did not correspond to regional forest types.
DOI: 10.7910/dvn/25202
title: Replication data for: Can Rural Development Projects Generate Social Capital? A Case Study of Ricinodendron heudelotii Kernel Marketing in Cameroon

description: 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 over a period of 5 years was evaluated. Households of project villages were compared to control households. Project households increased their social assets significantly at different levels. Development interventions thus enhanced social capital, this improvement was mutually reinforced by a positive change in other farmer livelihood assets, in particular financial capital. This study reveals the complexity of social capital generation through external intervention and its implications for farmer livelihoods specifically and development work in general.
DOI: 10.7910/dvn/25217
title: Replication data for: Locating REDD: A global survey and analysis of REDD readiness and demonstration activities

description: 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 REDD activities at a variety of locations and scales. A global survey of REDD activities was undertaken in 2009 to enable better understanding of the intensity and geographic distribution of these activities. Existing compilations, literature review, web-based sources, face-to-face and telephone interviews, and e-mail questionnaires were used to compile data for the inventory. Inter alia, data were collected on the location of activities and official and unofficial factors influencing location choices. Inventory data were combined with secondary data to estimate a statistical count model (Poisson) of factors affecting the number of REDD activities undertaken in the 64 developing countries that experienced significant emissions from deforestation. The results show that there were at least 79 REDD readiness activities and 100 REDD demonstration activities as of October 2009. Of these, the largest shares of REDD readiness and demonstration activities were implemented in Indonesia (7 and 15 respectively) and Brazil (4 and 13 respectively), countries widely agreed to have the greatest potential for re ducing forest-based emissions. The statistical results found no national characteristic to have a statistically-significant effect on the number of REDD readiness activities, but five national characteristics to have significant effects on the number of REDD demonstration projects. Baseline CO2 emissions, forest carbon stock, number of threatened species, quality of governance, and region all had significant effects. The results reveal the importance of biodiversity and good governance, and the relative unimportance of human need and opportunity cost of land. The results also reveal a bias against Africa and toward Latin America. Unless this pattern is countered, REDD and REDD+ may have geographic biases that undermine its broad political support.
DOI: 10.7910/dvn/25199
title: Replication data for: Protected areas within multifunctional landscapes: Squeezing out intermediate land use intensities in the tropics?

description: This dataset was moved to: https://doi.org/10.34725/DVN/25199A protected area (PA) tends to be designated in an area where tracts of primary forest remain, often with poor accessibility due to terrain features an d yet with some exposure to threats. Typically, a PA is at the start of a forest transition gradient. The establishment of a PA influences the whole gradient. We analyzed the temporal patterns of land-use change inside and outside four PAs, with one located in each of Laos, Indonesia, Madagascar and Cameroon. In Laos, in the Viengkham landscape, the rates of conversion of natural forest increased after the designation of the PA and were higher than the spatial baseline predicted. In the three other landscapes, the policies associated with the implementation of PAs increased the conversion rate immediately outside the boundary of the PAs. In Indonesia, in the Bungo landscape, forms of land-use associated with multifunctional agroforestry activities involving rubber trees land-use became the target for conversion to oil palm and monoculture rubber tree crops when the rules on the protection of the remaining natural forest were tightened. We tested a new metric for the degree of integration of forest in multifunctional landscapes which recognizes the surrounding matrix, both as surrogate habitat and as a corridor for tree species. Two important findings were: (i) a leakage zone of influence of at least 10 km around a PA needs to be included for quantification of the deforestation and degradation changes that may be due to forest protection inside the PA and (ii) agroforest and other mixed tree cover can maintain or increase the degree of integration of forest in the multifunctional landscape for biodiversity maintenance and conservation, while providing a source of livelihood for the local people. Enclosed data is a land cove change analysis result based on time series land cover maps from satellite image interpretation for each location of this study.