| 1. |
- Beery, Thomas H, et al.
(author)
-
Editorial: Nature's Contributions to People: On the Relation Between Valuations and Actions
- 2021
-
In: Frontiers in Ecology and Evolution. - : Frontiers Media SA. - 2296-701X .- 1540-9309. ; 9
-
Journal article (peer-reviewed)abstract
- In line with other bodies and a manifold of researchers addressing contemporary environmental challenges, the Global Assessment of Biodiversity and Ecosystem Services, published by the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES),concludes that a fundamental reorganization across technological, economic, and social factors, including values, is needed to achieve goals for conserving and sustainably using nature (IPBES,2019). This reorganization implies transformative changes, for example, in the production and consumption of energy, food, and fiber.While scientists and decision-makers increasingly acknowledge the need for transformative change, we lack specific definitions of the details of transformative change and agreement on how such change is ensured. However, by clarifying and assessing the multiple values of nature and its benefits, we understand what is at stake, for whom, and the tools for making priorities (Díaz et al., 2018, 2019). Valuation is, though, a means to an end. Likewise, increased awareness of the values of biodiversity is also a means to an end. The links between valuation, increasing awareness, and concrete actions, among policymakers and other decision-makers, including individuals, are crucial for transformative changes to start and proceed.These considerations reverse the established approach in economic valuation, according to which one uses observations about actual actions to infer the values the actor holds (“revealed preferences”). In line with this economic paradigm, the currently observed societal actions and resulting biodiversity change reveals a lack of societal valuation of nature’s contributions to people.If we would “transform our world,” as the UN’s Agenda 2030 demands, and with it the way societies act toward nature, this would reveal a new social valuation of nature’s contributions to people.Either way, there is a close relationship between actions and valuations.The articles in this Research Topic present insights from various perspectives and theoretical and methodological approaches on the connections between valuations of nature’s contributions to people, including ecosystem services, awareness, and concrete actions. The articles concern perceptions and actions among individuals and groups of people and aspects related to governance ranging from local to global scales, based on cases from various parts of the world.
|
|
| 2. |
- Dumarey, Melanie, et al.
(author)
-
OPLS methods for the analysis of hyperspectral images—comparison with MCR-ALS
- 2014
-
In: Journal of Chemometrics. - : John Wiley & Sons. - 0886-9383 .- 1099-128X. ; 28:8, s. 687-696
-
Journal article (peer-reviewed)abstract
- Two new orthogonal projections to latent structures (OPLS) based methods were proposed to analyze hyperspectral images, enabling the visualization ofmultiple chemical compounds in onematrix without the need of extensive preprocessing. Both proposed methods delivered images representing the chemical distribution in the ribbon similar to the more traditional multivariate curve resolution–alternating least squares (MCR-ALS) method, but their image background was less dynamic resulting in a stronger chemical contrast. This indicated that the methods successfully removed structured variation orthogonal to the chemical information (pure spectra of individual compounds), which was confirmed by the fact that physical scattering effects caused by grooves and edges were captured in the images visualizing the orthogonal components of the model. Hereby, the OPLS-based method employing the pure spectra as weights in the OPLS algorithm was more successful in distinguishing compounds with a similar spectral signal than the transposed OPLS algorithm(pure spectra of individual compounds were used as response in OPLS model). It should be noted that for the main compounds, the MCR-ALS method enabled easier visual interpretation compared to the OPLS-based methods by setting all values below zero to zero, resulting in a higher contrast between pixels containing the studied compound and pixels not containing that compound.
|
|
