Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Prospects for agricultural insurance in Europe
Meuwissen, Miranda ; Mey, Y. de; Asseldonk, M.A.P.M. van - \ 2018
Agricultural Finance Review 78 (2018)2. - ISSN 0002-1466 - p. 174 - 182.
BeechCOSTe52 Database
Robson, Matthew T. ; Garzón, Marta Benito ; Miranda, Ricardo Alia ; Bogdan, Saša ; Borovics, Attila ; Božič, Gregor ; Brendel, Oliver ; Clark, Jo ; Vries, S.M.G. de - \ 2018
genetic trial - European beech - tree height - leaf phenology - mortality - provenance test
The BeechCOSTe52 includes phenotypic trait measurements from individual trees measured in an international network of provenance tests compiled by the COST Action E52 (2006 – 2010). It comprises 39 trial sites and 217 provenances covering the distribution of European beech (Fagus sylvatica L.). The BeechCOSTe52 database provides individual tree phenotypic measurements of height, diameter at breast height, basal diameter, mortality, spring and autumn leaf phenology.
Phenotypic trait variation measured on european genetic trials of fagus sylvatica L
Robson, Matthew T. ; Garzón, Marta Benito ; Miranda, Ricardo Alia ; Egido, Diana Barba ; Bogdan, Saša ; Borovics, Attila ; Božič, Gregor ; Brendel, Oliver ; Clark, Jo ; Vries, Sven M.G. de; Delehan, Ivan I. ; Ducousso, Alexis ; Fady, Bruno ; Fennessy, John ; Forstreuter, Manfred ; Frýdl, Josef ; Geburek, Thomas ; Gömöry, Dušan ; Hauke-Kowalska, Maria ; Huber, Gerhard ; Ibañez, Juan Ignacio ; Ioniţă, Lucia ; Ivankovič, Mladen ; Hansen, Jon Kehlet ; Kóczán-Horváth, Anikó ; Kraigher, Hojka ; Lee, Steve ; Liesebach, Mirko ; Mátyás, Csaba ; Mertens, Patrick ; Muhs, Hans Jakob ; Novotný, Petr ; Parnuţa, Gheorghe ; Paule, Ladislav ; Picardo, Alvaro ; Rasztovics, Ervin ; Rogge, Martin ; Stener, Lars Göran ; Sułkowska, Małgorzata ; Urban, Otmar ; Wuehlisch, Georg Von; Vendramin, Giovanni G. ; Vettori, Cristina ; Wesoły, Wojciech - \ 2018
Scientific Data 5 (2018). - ISSN 2052-4463
We present BeechCOSTe52; a database of European beech (Fagus sylvatica) phenotypic measurements for several traits related to fitness measured in genetic trials planted across Europe. The dataset was compiled and harmonized during the COST-Action E52 (2006-2010), and subsequently cross-validated to ensure consistency of measurement data among trials and provenances. Phenotypic traits (height, diameter at breast height, basal diameter, mortality, phenology of spring bud burst and autumn-leaf discoloration) were recorded in 38 trial sites where 217 provenances covering the entire distribution of European beech were established in two consecutive series (1993/95 and 1996/98). The recorded data refer to 862,095 measurements of the same trees aged from 2 to 15 years old over multiple years. This dataset captures the considerable genetic and phenotypic intra-specific variation present in European beech and should be of interest to researchers from several disciplines including quantitative genetics, ecology, biogeography, macroecology, adaptive management of forests and bioeconomy.
Cyanobacteria dominance drives zooplankton functional dispersion
Josué, Iollanda I.P. ; Cardoso, Simone J. ; Miranda, Marcela ; Mucci, Maíra ; Ger, Kemal Ali ; Roland, Fabio ; Marinho, Marcelo Manzi - \ 2018
Hydrobiologia (2018). - ISSN 0018-8158 - 13 p.
Biodiversity - Eutrophication - Freshwater - Microbial food quality - Plankton

Accelerated eutrophication reduces water quality and shifts plankton communities. However, its effects on the aquatic food web and ecosystem functions remain poorly understood. Within this context, functional ecology can provide valuable links relating community traits to ecosystem functioning. In this study, we assessed the effects of eutrophication and cyanobacteria blooms on zooplankton functional diversity in a tropical hypereutrophic lake. Phytoplankton and zooplankton communities and limnological characteristics of a tropical Brazilian Lake (Southeast, Brazil) were monitored monthly from April 2013 to October 2014. Lake eutrophication indicators were total phosphorus, total chlorophyll-a, and chlorophyll-a per group (blue, green, and brown). The variation of major phytoplankton taxonomic group biomass was calculated and used as a proxy for changes in phytoplankton composition. Zooplankton functional diversity was assessed through functional dispersion and the community-weighted mean trait value. Regressions were performed between the lake eutrophication indicators, the phytoplankton biomass variation, and zooplankton functional dispersion. Our results suggest that eutrophication and cyanobacterial dominance change the composition of zooplankton traits and reduce functional dispersion, leading to zooplankton niche overlap. These findings are important because they provide a meaningful view of phytoplankton-zooplankton trophic interactions and contribute to an improved understanding their functional effects on aquatic ecosystems.

Mitochondrial dynamics in cancer-induced cachexia
Ende, Miranda van der; Grefte, Sander ; Plas, Rogier ; Meijerink, Jocelijn ; Witkamp, Renger F. ; Keijer, Jaap ; Norren, Klaske van - \ 2018
Biochimica et Biophysica Acta - Reviews on Cancer 1870 (2018)2. - ISSN 0304-419X - p. 137 - 150.
Animal models - Cancer-induced cachexia - Mitochondria - Mitochondrial dynamics - Muscle

Cancer-induced cachexia has a negative impact on quality of life and adversely affects therapeutic outcomes and survival rates. It is characterized by, often severe, loss of muscle, with or without loss of fat mass. Insight in the pathophysiology of this complex metabolic syndrome and direct treatment options are still limited, which creates a research demand. Results from recent studies point towards a significant involvement of muscle mitochondrial networks. However, data are scattered and a comprehensive overview is lacking. This paper aims to fill existing knowledge gaps by integrating published data sets on muscle protein or gene expression from cancer-induced cachexia animal models. To this end, a database was compiled from 94 research papers, comprising 11 different rodent models. This was combined with four genome-wide transcriptome datasets of cancer-induced cachexia rodent models. Analysis showed that the expression of genes involved in mitochondrial fusion, fission, ATP production and mitochondrial density is decreased, while that of genes involved ROS detoxification and mitophagy is increased. Our results underline the relevance of including post-translational modifications of key proteins involved in mitochondrial functioning in future studies on cancer-induced cachexia.

Less abundant bacterial groups are more affected than the most abundant groups in composted tannery sludge-treated soil
Lima Miranda, Ana Roberta ; Lopes Antunes, Jadson Emanuel ; Araujo, Fabio Fernando de; Melo, Vania M.M. ; Bezerra, Walderly Melgaco ; Brink, Paul J. van den; Ferreira de Araujo, Ademir Sergio - \ 2018
Scientific Reports 8 (2018)1. - ISSN 2045-2322

The application of composted tannery sludge (CTS) has promoted shifts in soil chemical properties and, therefore, can affect the soil bacterial community. This study assessed the effect of the CTS on the soil bacterial community over time. The CTS was applied at five rates (0, 2.5, 5, 10 and 20 t/ha), and the bacterial community was evaluated for 180 days. The principal curve response (PRC) analysis showed that the most abundant phyla were not influenced by the CTS rates over time, while the analysis of the bacterial community showed that some of the less abundant phyla were influenced by the CTS rates. Similarly, the PRC analysis for the bacterial classes showed the significant effect of the CTS rates. The redundancy analyses for the bacterial phyla and classes showed the relationship between the significant chemical properties and the bacterial community of the soil after the CTS amendment over time. Therefore, there was a shift in the bacterial community over time with the application of the composted tannery sludge. Our study has shown that the less abundant bacterial groups were more influenced by the CTS than the most abundant bacterial groups and that these bacterial groups were driven by soil chemical properties, primarily chromium (Cr) and the soil pH.

Relative importance of competition and plant–soil feedback, their synergy, context dependency and implications for coexistence
Lekberg, Ylva ; Bever, James D. ; Bunn, Rebecca A. ; Callaway, Ragan M. ; Hart, Miranda M. ; Kivlin, Stephanie N. ; Klironomos, John ; Larkin, Beau G. ; Maron, John L. ; Reinhart, Kurt O. ; Remke, Michael ; Putten, Wim H. van der - \ 2018
Ecology Letters 21 (2018)8. - ISSN 1461-023X - p. 1268 - 1281.
Additive interaction - coexistence - competition - facilitation - meta-analysis - mutualist - pathogen - plant–soil feedback - resource gradient - soil biota

Plants interact simultaneously with each other and with soil biota, yet the relative importance of competition vs. plant–soil feedback (PSF) on plant performance is poorly understood. Using a meta-analysis of 38 published studies and 150 plant species, we show that effects of interspecific competition (either growing plants with a competitor or singly, or comparing inter- vs. intraspecific competition) and PSF (comparing home vs. away soil, live vs. sterile soil, or control vs. fungicide-treated soil) depended on treatments but were predominantly negative, broadly comparable in magnitude, and additive or synergistic. Stronger competitors experienced more negative PSF than weaker competitors when controlling for density (inter- to intraspecific competition), suggesting that PSF could prevent competitive dominance and promote coexistence. When competition was measured against plants growing singly, the strength of competition overwhelmed PSF, indicating that the relative importance of PSF may depend not only on neighbour identity but also density. We evaluate how competition and PSFs might interact across resource gradients; PSF will likely strengthen competitive interactions in high resource environments and enhance facilitative interactions in low-resource environments. Finally, we provide a framework for filling key knowledge gaps and advancing our understanding of how these biotic interactions influence community structure.

Genoeg geld beschikbaar, maar dikwijls te duur
Meuwissen, Miranda - \ 2018
Taxonomy of the family Arenaviridae and the order Bunyavirales : update 2018
Maes, Piet ; Alkhovsky, Sergey V. ; Bào, Yīmíng ; Beer, Martin ; Birkhead, Monica ; Briese, Thomas ; Buchmeier, Michael J. ; Calisher, Charles H. ; Charrel, Rémi N. ; Choi, Il Ryong ; Clegg, Christopher S. ; Torre, Juan Carlos de la; Delwart, Eric ; DeRisi, Joseph L. ; Bello, Patrick L. Di; Serio, Francesco Di; Digiaro, Michele ; Dolja, Valerian V. ; Drosten, Christian ; Druciarek, Tobiasz Z. ; Du, Jiang ; Ebihara, Hideki ; Elbeaino, Toufic ; Gergerich, Rose C. ; Gillis, Amethyst N. ; Gonzalez, Jean Paul J. ; Haenni, Anne Lise ; Hepojoki, Jussi ; Hetzel, Udo ; Hồ, Thiện ; Hóng, Ní ; Jain, Rakesh K. ; Jansen van Vuren, Petrus ; Jin, Qi ; Jonson, Miranda Gilda ; Junglen, Sandra ; Keller, Karen E. ; Kemp, Alan ; Kipar, Anja ; Kondov, Nikola O. ; Koonin, Eugene V. ; Kormelink, Richard ; Korzyukov, Yegor ; Krupovic, Mart ; Lambert, Amy J. ; Laney, Alma G. ; LeBreton, Matthew ; Lukashevich, Igor S. ; Marklewitz, Marco ; Markotter, Wanda ; Martelli, Giovanni P. ; Martin, Robert R. ; Mielke-Ehret, Nicole ; Mühlbach, Hans Peter ; Navarro, Beatriz ; Ng, Terry Fei Fan ; Nunes, Márcio Roberto Teixeira ; Palacios, Gustavo ; Pawęska, Janusz T. ; Peters, Clarence J. ; Plyusnin, Alexander ; Radoshitzky, Sheli R. ; Romanowski, Víctor ; Salmenperä, Pertteli ; Salvato, Maria S. ; Sanfaçon, Hélène ; Sasaya, Takahide ; Schmaljohn, Connie ; Schneider, Bradley S. ; Shirako, Yukio ; Siddell, Stuart ; Sironen, Tarja A. ; Stenglein, Mark D. ; Storm, Nadia ; Sudini, Harikishan ; Tesh, Robert B. ; Tzanetakis, Ioannis E. ; Uppala, Mangala ; Vapalahti, Olli ; Vasilakis, Nikos ; Walker, Peter J. ; Wáng, Guópíng ; Wáng, Lìpíng ; Wáng, Yànxiăng ; Wèi, Tàiyún ; Wiley, Michael R. ; Wolf, Yuri I. ; Wolfe, Nathan D. ; Wú, Zhìqiáng ; Xú, Wénxìng ; Yang, Li ; Yāng, Zuòkūn ; Yeh, Shyi Dong ; Zhāng, Yǒng Zhèn ; Zhèng, Yàzhōu ; Zhou, Xueping ; Zhū, Chénxī ; Zirkel, Florian ; Kuhn, Jens H. - \ 2018
Archives of Virology 163 (2018)8. - ISSN 0304-8608 - p. 2295 - 2310.
In 2018, the family Arenaviridae was expanded by inclusion of 1 new genus and 5 novel species. At the same time, the recently established order Bunyavirales was expanded by 3 species. This article presents the updated taxonomy of the family Arenaviridae and the order Bunyavirales as now accepted by the International Committee on Taxonomy of Viruses (ICTV) and summarizes additional taxonomic proposals that may affect the order in the near future.
HEx : A heterologous expression platform for the discovery of fungal natural products
Harvey, Colin J.B. ; Tang, Mancheng ; Schlecht, Ulrich ; Horecka, Joe ; Fischer, Curt R. ; Lin, Hsiao Ching ; Li, Jian ; Naughton, Brian ; Cherry, James ; Miranda, Molly ; Li, Yong Fuga ; Chu, Angela M. ; Hennessy, James R. ; Vandova, Gergana A. ; Inglis, Diane ; Aiyar, Raeka S. ; Steinmetz, Lars M. ; Davis, Ronald W. ; Medema, Marnix H. ; Sattely, Elizabeth ; Khosla, Chaitan ; Onge, Robert P.S. ; Tang, Yi ; Hillenmeyer, Maureen E. - \ 2018
Science Advances 4 (2018)4. - ISSN 2375-2548
For decades, fungi have been a source of U.S. Food and Drug Administration-approved natural products such as penicillin, cyclosporine, and the statins. Recent breakthroughs in DNA sequencing suggest that millions of fungal species exist on Earth, with each genome encoding pathways capable of generating as many as dozens of natural products. However, the majority of encoded molecules are difficult or impossible to access because the organisms are uncultivable or the genes are transcriptionally silent. To overcome this bottleneck in natural product discovery, we developed the HEx (Heterologous EXpression) synthetic biology platform for rapid, scalable expression of fungal biosynthetic genes and their encoded metabolites in Saccharomyces cerevisiae. We applied this platform to 41 fungal biosynthetic gene clusters from diverse fungal species from around the world, 22 of which produced detectable compounds. These included novel compounds with unexpected biosynthetic origins, particularly from poorly studied species. This result establishes the HEx platform for rapid discovery of natural products from any fungal species, even those that are uncultivable, and opens the door to discovery of the next generation of natural products.
Fusarium metavorans sp. Nov. : The frequent opportunist â € FSSC6'
Al-Hatmi, Abdullah M.S. ; Ahmed, Sarah A. ; Diepeningen, Anne D. Van; Drogari-Apiranthitou, Miranda ; Verweij, Paul E. ; Meis, Jacques F. ; Hoog, G.S. De - \ 2018
Medical mycology 56 (2018). - ISSN 1369-3786 - p. S144 - S152.
fusariosis - Fusarium metavorans - molecular phylogenetics - morphology - RPB2 - taxonomy - TEF1
The Fusarium solani species complex (FSSC) is the most common group of fusaria associated with superficial and life-threatening infections in humans. Here we formally introduce Fusarium metavorans sp. Nov., widely known as FSSC6 (Fusarium solani species complex lineage 6), one of the most frequent agents of human opportunistic infections. The species is described with multilocus molecular data including sequences of internal transcribed spacer region (ITS), portions of the translation elongation factor 1-a gene (TEF1), and the partial RNA polymerase II gene (rPB2). A phylogenetic approach was used to evaluate species delimitation. Topologies of the trees were concordant. Phylogenetic analyses suggest that the FSSC consists of three major clades encompassing a large number of phylogenetic species; Fusarium metavorans corresponds to phylogenetic species 6 within FSSC clade 3. The species has a global distribution and a wide ecological amplitude, also including strains from soil and agents of opportunistic plant disease; it was also isolated from the gut of the wood-boring cerambycid beetle Anoplophora glabripennis.
Technical inefficiency of Vietnamese pangasius farming : A data envelopment analysis
Anh Ngoc, Pham Thi ; Gaitán-Cremaschi, D. ; Meuwissen, Miranda P.M. ; Le, Tru Cong ; Bosma, Roel H. ; Verreth, Johan ; Lansink, Alfons Oude - \ 2018
Aquaculture Economics & Management 22 (2018)2. - ISSN 1365-7305 - p. 229 - 243.
Aquaculture - bootstrap truncated regression - data envelopment analysis - inefficiency - pangasius
Vietnamese pangasius farming needs to produce efficiently to compete in world markets. This study investigates the input- and output-specific technical inefficiency of Vietnamese pangasius farmers. First, we used a Russell-type (input–output) directional distance function to estimate the input- and output-specific technical inefficiency. Second, we applied a bootstrap truncated regression to analyze the factors influencing these technical inefficiencies. Results show that the main challenges for enhancing the performance of Vietnamese pangasius production are inadequate use of capital assets (inefficiency of 42%) and improper methods to achieve higher fish yield (inefficiency of 30%). Input-specific technical inefficiency (pond area and feed) is negatively associated with the experience and education level of pangasius farmers. Location of the farm in a saltwater intrusion area is positively associated with the inefficiency of producing fish. Outcomes of this study are useful to identify successful strategies to minimize the use of inputs while simultaneously maximizing fish production.
On the relationship between fire regime and vegetation structure in the tropics
Veenendaal, Elmar M. ; Torello-Raventos, Mireia ; Miranda, Heloisa S. ; Sato, Naomi Margarete ; Oliveras, Imma ; Langevelde, Frank van; Asner, Gregory P. ; Lloyd, Jon - \ 2018
New Phytologist 218 (2018)1. - ISSN 0028-646X - p. 153 - 166.
alternative stable states - feedbacks - fire ecology - forest - savannah
We assessed data from 11 experiments examining the effects of the timing and/or frequency of fire on tropical forest and/or savanna vegetation structure over one decade or more. The initial ‘control treatment’ in many such cases consisted of previously cleared land. This is as opposed to natural vegetation subject to some sort of endogenous fire regime before the imposition of fire treatments. Effects of fire on fractional foliar cover are up to 10-fold greater when clearing pre-treatments are imposed. Moreover, because many of the ‘classic’ fire trials were initialised with applied management questions in mind, most have also used burning regimes much more frequent and/or severe than those occurring in the absence of human activity. Once these factors are taken into account, our modelling analysis shows that nonanthropogenic fire regimes serve to reduce canopy vegetative cover to a much lower extent than has previously been argued to be the case. These results call into question the notion that fire effects on tropical vegetation can be of a sufficient magnitude to maintain open-type savanna ecosystems under climatic/soil regimes otherwise sufficient to give rise to a more luxurious forest-type vegetation cover.
Responses of soil bacterial community after seventh yearly applications of composted tannery sludge
Miranda, Ana Roberta Lima ; Mendes, Lucas William ; Rocha, Sandra Mara Barbosa ; Brink, Paul J. Van den; Bezerra, Walderly Melgaço ; Melo, Vania Maria Maciel ; Antunes, Jadson Emanuel Lopes ; Araujo, Ademir Sergio Ferreira - \ 2018
Geoderma 318 (2018). - ISSN 0016-7061 - p. 1 - 8.
16S rRNA - Organic waste - Soil microbial diversity
Composted tannery sludge (CTS) contains organic compounds and inorganic elements, mainly chromium (Cr), and its long-term application in soil can alter the bacterial structure and diversity. Thus, we used the next-generation sequencing to assess the structure and diversity of bacterial communities in soils after 7 years of CTS application. CTS was applied at 0, 2.5, 5, 10, and 20 Mg ha− 1 and the soil samples were collected at 75 days after application in the seventh year. The most abundant phyla were Actinobacteria, Proteobacteria, Firmicutes, and Chloroflexi. The abundance of some specific groups increased with application of CTS, such as Anaerolinea S0208 and Firmicutes. Six bacterial genera differed between amended and unamended soil. The abundance of Bacillus, Paenibacillus, Symbiobacterium, Clostridium, Microlunatus, and Actinomadura increased after application of CTS. The Redundancy Analysis between the structure of the bacterial community and chemical variables in soil did not cluster all treatments clearly, but showed Cr, pH, and organic C as significant chemical variables that influenced the bacterial communities. Application of CTS in soil has a primary effect on the bacterial communities that, negatively, alter the bacterial diversity and community similarity, while that, positively, it permits to select specific bacterial groups able to resist and biodegrade contaminants.
Price transmission along the Vietnamese pangasius export chain
Pham, Thi Anh Ngoc ; Meuwissen, Miranda P.M. ; Le, Tru Cong ; Bosma, Roel H. ; Verreth, Johan ; Oude Lansink, Alfons - \ 2018
Aquaculture 493 (2018). - ISSN 0044-8486 - p. 416 - 423.
Price transmission in international supply chains is important to ensure that price premiums paid by consumers for environmental sustainability labels are transmitted upstream to farmers. This facilitates investment in sustainable aquaculture systems. This study analyzes the price transmission from the international retail stage to the Vietnamese farm, focusing on frozen pangasius fillets. We used monthly nominal prices at farm and export stages in Vietnam, and at wholesale and retail stages in Poland for the period from August 2010 to December 2014. Price signals at the Polish retail stage were found to transmit back to the wholesale, export, and farm stages. Moreover, price transmission from wholesale to export and from export to farm is characterized by both short- and long-run symmetries. In the short run, retailers tend to transmit only wholesale price increases to their customers and wholesalers transmit only retail price increases to exporters. A long-run relationship between retailers and wholesalers is absent, thereby reducing the ability of chain actors to respond to all market signals, including downward changes.

Given the delay in price transmission in the short run, the introduction of business-to-business electronic trading or auction markets might reduce this delay along the retail, wholesale, export, and farm stages. To enhance the long-run price relationship in the wholesale-retail market, more retailers should enter the pangasius market. The transmission of price changes from Polish markets back to Vietnamese pangasius farmers is a positive signal for farmers to invest in sustainable production methods, as consumer price premiums likely flow back to the farm.
Projecting changes in the distribution and productivity of living marine resources: A critical review of the suite of modelling approaches used in the large European project VECTORS
Peck, Myron A. ; Arvanitidis, Christos ; Butenschön, Momme ; Canu, Donata Melaku ; Chatzinikolaou, Eva ; Cucco, Andrea ; Domenici, Paolo ; Fernandes, Jose A. ; Gasche, Loic ; Huebert, Klaus B. ; Hufnagl, Marc ; Jones, Miranda C. ; Kempf, Alexander ; Keyl, Friedemann ; Maar, Marie ; Mahévas, Stéphanie ; Marchal, Paul ; Nicolas, Delphine ; Pinnegar, John K. ; Rivot, Etienne ; Rochette, Sébastien ; Sell, Anne F. ; Sinerchia, Matteo ; Solidoro, Cosimo ; Somerfield, Paul J. ; Teal, Lorna R. ; Travers-trolet, Morgan ; De Wolfshaar, Karen E. Van - \ 2018
Estuarine Coastal and Shelf Science 201 (2018). - ISSN 0272-7714 - p. 40 - 55.
Ditribution - Modelling - Habitat - Resources - Man-induced effects
We review and compare four broad categories of spatially-explicit modelling approaches currently used to understand and project changes in the distribution and productivity of living marine resources including: 1) statistical species distribution models, 2) physiology-based, biophysical models of single life
stages or the whole life cycle of species, 3) food web models, and 4) end-to-end models. Single pressures are rare and, in the future, models must be able to examine multiple factors affecting living marine resources such as interactions between: i) climate-driven changes in temperature regimes and acidification,
ii) reductions in water quality due to eutrophication, iii) the introduction of alien invasive species, and/or iv) (over-)exploitation by fisheries. Statistical (correlative) approaches can be used to detect historical patterns which may not be relevant in the future. Advancing predictive capacity of changes in
distribution and productivity of living marine resources requires explicit modelling of biological and physical mechanisms. New formulations are needed which (depending on the question) will need to strive for more realism in ecophysiology and behaviour of individuals, life history strategies of species, as
well as trophodynamic interactions occurring at different spatial scales. Coupling existing models (e.g. physical, biological, economic) is one avenue that has proven successful. However, fundamental advancements are needed to address key issues such as the adaptive capacity of species/groups andecosystems. The continued development of end-to-end models (e.g., physics to fish to human sectors) will be critical if we hope to assess how multiple pressures may interact to cause changes in living marine resources including the ecological and economic costs and trade-offs of different spatial management strategies. Given the strengths and weaknesses of the various types of models reviewed here,
confidence in projections of changes in the distribution and productivity of living marine resources will be increased by assessing model structural uncertainty through biological ensemble modelling.
An overview and analysis of the implementation of risk management instruments across the EU
Meuwissen, Miranda - \ 2017
Access to finance from different finance provider types : Farmer knowledge of the requirements
Wulandari, Eliana ; Meuwissen, Miranda P.M. ; Karmana, Maman H. ; Oude Lansink, Alfons G.J.M. - \ 2017
PLoS One 12 (2017)9. - ISSN 1932-6203
Analysing farmer knowledge of the requirements of finance providers can provide valuable insights to policy makers about ways to improve farmers’ access to finance. This study compares farmer knowledge of the requirements to obtain finance with the actual requirements set by different finance provider types, and investigates the relation between demographic and socioeconomic factors and farmer knowledge of finance requirements. We use a structured questionnaire to collect data from a sample of finance providers and farmers in Java Island, Indonesia. We find that the most important requirements to acquire finance vary among different finance provider types. We also find that farmers generally have little knowledge of the requirements, which are important to each type of finance provider. Awareness campaigns are needed to increase farmer knowledge of the diversity of requirements among the finance provider types.
Price and Volatility Transmission and Market Power in the German Fresh Pork Supply Chain
Assefa, Tsion Taye ; Meuwissen, Miranda P.M. ; Gardebroek, Koos ; Oude Lansink, Alfons G.J.M. - \ 2017
Journal of Agricultural Economics 68 (2017)3. - ISSN 0021-857X - p. 861 - 880.
Food supply chain - Germany - market power - price transmission - price volatility transmission

We investigate the relationship between the transmission of price volatility and market power in the German fresh pork supply chain. We use a theoretical model underpinning this relationship followed by an empirical application that uses monthly farm, slaughterhouse and retail pork price data for the period 2000–2011. We examine both the relationships of market power with price level transmission and price volatility transmission in the chain. We use a vector error correction model and least squares regressions to analyse price transmission and price volatility transmissions, respectively. Results show that retail market power limited both types of transmissions. Competition inducing policy measures coupled with measures that support price risk management initiatives of chain actors are suggested.

Priorities for research in soil ecology
Eisenhauer, Nico ; Antunes, Pedro M. ; Bennett, Alison E. ; Birkhofer, Klaus ; Bissett, Andrew ; Bowker, Matthew A. ; Caruso, Tancredi ; Chen, Baodong ; Coleman, David C. ; Boer, Wietse de; Ruiter, Peter de; DeLuca, Thomas H. ; Frati, Francesco ; Griffiths, Bryan S. ; Hart, Miranda M. ; Hättenschwiler, Stephan ; Haimi, Jari ; Heethoff, Michael ; Kaneko, Nobuhiro ; Kelly, Laura C. ; Leinaas, Hans Petter ; Lindo, Zoë ; Macdonald, Catriona ; Rillig, Matthias C. ; Ruess, Liliane ; Scheu, Stefan ; Schmidt, Olaf ; Seastedt, Timothy R. ; Straalen, Nico M. van; Tiunov, Alexei V. ; Zimmer, Martin ; Powell, Jeff R. - \ 2017
Pedobiologia 63 (2017). - ISSN 0031-4056 - p. 1 - 7.
Aboveground-belowground interactions - Biodiversity–ecosystem functioning - Biogeography - Chemical ecology - Climate change - Ecosystem services - Global change - Microbial ecology - Novel environments - Plant-microbe interactions - Soil biodiversity - Soil food web - Soil management - Soil processes
The ecological interactions that occur in and with soil are of consequence in many ecosystems on the planet. These interactions provide numerous essential ecosystem services, and the sustainable management of soils has attracted increasing scientific and public attention. Although soil ecology emerged as an independent field of research many decades ago, and we have gained important insights into the functioning of soils, there still are fundamental aspects that need to be better understood to ensure that the ecosystem services that soils provide are not lost and that soils can be used in a sustainable way. In this perspectives paper, we highlight some of the major knowledge gaps that should be prioritized in soil ecological research. These research priorities were compiled based on an online survey of 32 editors of Pedobiologia – Journal of Soil Ecology. These editors work at universities and research centers in Europe, North America, Asia, and Australia. The questions were categorized into four themes: (1) soil biodiversity and biogeography, (2) interactions and the functioning of ecosystems, (3) global change and soil management, and (4) new directions. The respondents identified priorities that may be achievable in the near future, as well as several that are currently achievable but remain open. While some of the identified barriers to progress were technological in nature, many respondents cited a need for substantial leadership and goodwill among members of the soil ecology research community, including the need for multi-institutional partnerships, and had substantial concerns regarding the loss of taxonomic expertise.
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