| 1. |
- Kattge, Jens, et al.
(författare)
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TRY plant trait database - enhanced coverage and open access
- 2020
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Ingår i: Global Change Biology. - : Wiley-Blackwell. - 1354-1013 .- 1365-2486. ; 26:1, s. 119-188
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Tidskriftsartikel (refereegranskat)abstract
- Plant traits-the morphological, anatomical, physiological, biochemical and phenological characteristics of plants-determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodiversity conservation, ecosystem and landscape management, restoration, biogeography and earth system modelling. Since its foundation in 2007, the TRY database of plant traits has grown continuously. It now provides unprecedented data coverage under an open access data policy and is the main plant trait database used by the research community worldwide. Increasingly, the TRY database also supports new frontiers of trait-based plant research, including the identification of data gaps and the subsequent mobilization or measurement of new data. To support this development, in this article we evaluate the extent of the trait data compiled in TRY and analyse emerging patterns of data coverage and representativeness. Best species coverage is achieved for categorical traits-almost complete coverage for 'plant growth form'. However, most traits relevant for ecology and vegetation modelling are characterized by continuous intraspecific variation and trait-environmental relationships. These traits have to be measured on individual plants in their respective environment. Despite unprecedented data coverage, we observe a humbling lack of completeness and representativeness of these continuous traits in many aspects. We, therefore, conclude that reducing data gaps and biases in the TRY database remains a key challenge and requires a coordinated approach to data mobilization and trait measurements. This can only be achieved in collaboration with other initiatives.
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| 2. |
- Friedman, Rachel, et al.
(författare)
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Vulnerability of Ghanaian women cocoa farmers to climate change : a typology
- 2019
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Ingår i: Climate and Development. - : Informa UK Limited. - 1756-5529 .- 1756-5537. ; 11:5, s. 446-458
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Tidskriftsartikel (refereegranskat)abstract
- Climate change, increasingly recognized as a hurdle to achieving sustainable development goals, has already begun impacting the lives and livelihoods of people around the world, including on the African continent. Vulnerability is a concept often employed in the context of climate change to identify risks and develop policy and adaptation measures that address current and projected impacts. However, it is situated in a broader social context, driven by factors such as land tenure and access, livelihood diversification, and empowerment, which single out historically marginalized groups like women. This paper applies a vulnerability framework to a case study of cocoa farming in the Central Region of Ghana, depicting not only the variety of factors contributing to climate change vulnerability but also different narratives on vulnerability that emerge based on a woman’s relation to cocoa production itself. The paper conveys how homogeneous representations of women farmers and the technical focus of climate-orientated policy interventions may threaten to further marginalize the most vulnerable and exacerbate existing inequalities. This has implications for both climate change policy design and implementation, as well as the broader social development agenda that has bearing on vulnerability.
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| 3. |
- Morel, Alexandra C., et al.
(författare)
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Landscape and management influences on smallholder agroforestry yields show shifts during a climate shock
- 2024
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Ingår i: Agriculture, Ecosystems and Environment. - 0167-8809. ; 366
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Tidskriftsartikel (refereegranskat)abstract
- Sustaining yields for smallholder perennial agriculture under a rapidly changing climate regime may require consideration of landscape features and on-farm management decisions in tandem. Optimising landscape and management may not be possible for maximising yields in any one year but maintaining heterogeneous landscapes could be an important climate adaptation strategy. In this study, we observed elevation, forest patch and shade management gradients affecting smallholder coffee (Coffea arabica) yields in a ‘normal’ year versus the 2015/16 El Niño. We generally found a benefit to yields from having leguminous shade trees and low canopy openness, while maintaining diverse shade or varying canopy openness had more complex influences during a climate shock. The two years of observed climate shock were dominated by either drought or high temperatures, with yield responses generally negative. Climate projections for East Africa predict more erratic rainfall and higher temperatures, which will disproportionately impact smallholder farmers.
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