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Tsafack S, Degrande A, Franzel S, Simpson B. 2014. Farmer-to-farmer extension in Cameroon: a survey of extension organizations. ICRAF Working Paper
- 负责人：
- Sygnola, Tsafack;;Degrande, Ann;;World Agroforestry Centre
- 关键词：
- DOI：
- doi:10.7910/dvn/vqxgpv
- 摘要：
- rs in developing countries, they are often inadequately served by research, extension and advisory services. Extension approaches such as the farmer-to-farmer extension (F2F
Tsafack S, Degrande A, Franzel S, Simpson B. 2014. Farmer-to-farmer extension in Cameroon: a survey of extension organizations. ICRAF Working Paper
- 负责人：
- 关键词：
- DOI：
- doi:10.34725/dvn/vqxgpv
- 摘要：
- extension approach in Cameroon is used by farmer organizations as well as\rnational and international non-profit organizations. Neither governmental services
Data from: Variation in the frequency and extent of hybridization between Leucosceptrum japonicum and L. stellipilum (Lamiaceae) in the cent
- 负责人：
- DOI：
- doi:10.5061/dryad.7sf28
- 摘要：
- Variations in the frequency and extent of hybridization among mixed populations located in the same contact zone provide natural laboratories
Data from: The impact of geographic range, sampling, ecology, and time on extinction risk in the volatile clade Graptoloida
- 负责人：
- DOI：
- doi:10.5061/dryad.5pv83
- 摘要：
- Although extinction risk has been found to have a consistent negative relationship with geographic range across wide temporal and taxonomic scales
Data from: Forest extent and deforestation in tropical Africa since 1900
- 负责人：
- 关键词：
- DOI：
- doi:10.5061/dryad.r87p0
- 摘要：
- Accurate estimates of historical forest extent and associated deforestation rates are crucial for quantifying tropical carbon cycles and formulating
Data from: Does a facultative mutualism limit species range expansion?
- 负责人：
- DOI：
- doi:10.5061/dryad.8566
- 摘要：
- to what extent the availability and quality of rhizobia beyond the range edge limits host range expansion. We tested the effect of rhizobia availability
Data from: Greenhouse biogeography: the relationship of geographic range to invasion and extinction in the Cretaceous Western Interior Seaway
- 负责人：
- DOI：
- doi:10.5061/dryad.663b4
- 摘要：
- t geographic range size played in mediating extinction resistance and invasion potential of these WIS species. We found no relationship between geographic range
Data from: Lowest drought sensitivity and decreasing growth synchrony towards the dry distribution margin of European beech
- 负责人：
- 关键词：
- DOI：
- doi:10.5061/dryad.3bk3j9kgc
- 摘要：
- at range margins is assumed to be more limited by extreme events such as drought or frost events than in the centre of their range. We explore whether the growth
Data from: Limited scope for latitudinal extension of reef corals
- 负责人：
- DOI：
- doi:10.5061/dryad.3b568
- 摘要：
- coral range extension in response to ocean warming. Latitudinal gradients in species richness for the group also suggest that higher winter irradiance
Public Attitudes to Genomics: Vignette Studies, 2004
- 负责人：
- 关键词：
- DOI：
- doi:10.5255/ukda-sn-5444-1
- 摘要：
- ht hide genuinely ambivalent responses to genetic technologies</li><li>the extent to which any context effects are domain specific (the domains
