Bioversity International’s contributions to the implementation of article 6 of the International Treaty on Plant Genetic Resources for Food and Agriculture

In the last 20 years, Bioversity International has coordinated or has been involved in a number of initiatives, projects and activities that contribute to the implementation of Article 6 of the International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGRFA). In this note, we summarize how Bioversity International’s work has contributed to each of the measures indicated in Article 6.2 from a) to g) and present examples of projects that are aligned with these measures. This summary was prepared as a contribution to the Third Meeting of the Ad Hoc Technical Committee on Sustainable Use of Plant Genetic Resources, Vienna, October 2016

An heuristic framework for identifying multiple ways of supporting the conservation and use of traditional crop varieties within the agricultural production system

This paper reviews and discusses how studies on (i) on-farm diversity assessment, (ii) access to diversity and information, (iii) extent of use of available materials and information, and (iv) benefits obtained by the farmer or farming community from their use of local crop diversity, are necessary to identify the different ways of supporting farmers and farming communities in the maintenance of traditional varieties and crop genetic diversity within their production systems. Throughout this paper two key themes are emphasized. First, any description or analysis within the four main areas (assessment, access, use and benefit) can, and most probably will, lead to a number of different actions. Second, the decision to implement a particular action, and therefore its success, will depend on farmers and the farming community having the knowledge and leadership capacity to evaluate the benefits that this action will have for them. This in turn emphasizes the importance of activities (whether by local, national and international organizations and agencies) of strengthening local institutions so as to enable farmers to take a greater role in the management of their resources

The contribution of seed systems to crop and tree diversity in sustainable food systems.

This chapter will review the evidence that shows that farmers’ access to seeds has an impact on the sustainability of food production and consumption. Diverse seeds are needed to support the diversification of agriculture, which in turn may contribute to more diverse diets, and to using species and varieties for the integrity of ecosystem services. In what follows, we define three functions of seed systems. We discuss the evidence that farmers’ seed access influences food production and consumption. We then discuss each of the three key functions (production and distribution, innovation, regulation) in turn and review the evidence that differences in the capacity of seed systems to perform each function make a difference to fulfilling the overall goal of seed systems, in terms of their contribution to sustainable food systems. We also describe existing work to provide data and indicators to characterize each seed system function and assess how these can be used to measure the link between agricultural biodiversity and sustainable food systems in this context

Caficultura y cambio climático en Nicaragua: Refexiones sobre el papel de las políticas públicas y las cooperativas

En el marco de un proyecto denominado “Planes de Inversión en Agricultura Sostenible Adaptada al Clima” implementado por CEDECO, HIVOS, Bioversity Internacional, el Centro Mundial de Agroforestería (ICRAF) y la Universidad de Vermont, Bioversity International llevó a cabo un estudio sobre el marco político e institucional que rodea la producción del café por pequeños productores en Nicaragua. Los objetivos del mismo fueron entender y documentar cómo las políticas públicas que regulan la caficultura en Nicaragua así como el modo de funcionar de las cooperativas agrícolas influyen en las prácticas agrícolas de los pequeños productores de café en Nicaragua, y en particular su capacidad para adoptar medidas que les permitan adaptar la producción cafetalera a los efectos del cambio climático

Toward a better understanding of the mid-infrared emission in the LMC

In this paper we aim to constrain for the first time the dust emission in the mid-to-far infrared domain, in the LMC, with the use of the Spitzer IRS and MIPS SED data, combined with Herschel data. We also consider UV extinction predictions derived from modeling. We selected 10 regions observed as part of the SAGE-Spec program, to probe dust properties in various environments (diffuse, molecular and ionized regions). All data were smoothed to the 40arcsec angular resolution. The SEDs were modeled with DustEM models, using the standard Mathis RF, as well as three additional RFs, with stellar clusters ages ranging from 4 Myr to 600 Myr. Standard dust models used to reproduce the Galactic diffuse medium are clearly not able to reproduce the dust emission in the MIR wavelength domain. This analysis evidences the need of adjusting parameters describing the dust size distribution and shows a clear distinct behavior according to the type of environments. In addition, whereas the small grain emission always seems to be negligible at long wavelengths in our Galaxy, the contribution of this small dust component could be more important than expected, in the submm-mm range, in the LMC averaged SED. Properties of the small dust component of the LMC are clearly different from those of our Galaxy. Its abundance, significantly enhanced, could be the result of large grains shattering due to strong shocks or turbulence. In addition, this grain component in the LMC systematically shows smaller grain size in the ionized regions compared to the diffuse medium. Predictions of extinction curves show significantly distinct behaviors depending on the dust models but also from one region to another. Comparison of model predictions with the LMC mean extinction curve shows that no model gives satisfactory agreement using the Mathis radiation field while using a harder radiation field tends to improve the agreementComment: Accepted for publication in A&

Assessing the functional relationship between dung beetle traits and dung removal, burial, and seedling emergence

The relationship between biodiversity and ecosystem functioning is often assessed through trait diversity. However, the relationship between traits and functions is typically assumed but seldom tested. We analyze the relationship between dung beetle traits and three ecological functions: dung removal, dung burial, and seedling emergence. We set up a laboratory experiment using nine Scarabaeidae species (three endocoprids, four paracoprids, and two telecoprids). We placed a sexual pair of beetles in each experimental unit, together with a mixture of dung and seeds, and measured the amount of dung removed and buried, burial depth, and the number of emerged seedlings. Sixteen morphological traits related to dung removal and burial were measured in each individual. Results indicate that these traits were related to dung beetle performance in dung removal and burial. Most traits were positively related to dung removal, indicating the existence of a general trait syndrome associated with dung manipulation and digging capability. Dung exploitation strategies did not provide further explanatory power. Seedling emergence showed a negative but weak relationship with dung burial amount and depth and species identity. This implies that specific differences in dung–soil interface activity may be important in secondary seed dispersal by dung beetles.info:eu-repo/semantics/publishedVersio

Spitzer Space Telescope Spectroscopy of Ices toward Low-Mass Embedded Protostars

Sensitive 5-38 μm Spitzer Space Telescope and ground-based 3-5 μm spectra of the embedded low-mass protostars B5 IRS1 and HH 46 IRS show deep ice absorption bands superposed on steeply rising mid-infrared continua. The ices likely originate in the circumstellar envelopes. The CO_2 bending mode at 15 μm is a particularly powerful tracer of the ice composition and processing history. Toward these protostars, this band shows little evidence for thermal processing at temperatures above 50 K. Signatures of lower temperature processing are present in the CO and OCN^- bands, however. The observed CO2 profile indicates an intimate mixture with H_(2)O, but not necessarily with CH_(3)OH, in contrast to some high-mass protostars. This is consistent with the low CH_(3)OH abundance derived from the ground-based L-band spectra. The CO_2 : H_(2)O column density ratios are high in both B5 IRS1 and HH 46 IRS (~35%). Clearly, the Spitzer spectra are essential for studying ice evolution in low-mass protostellar environments and for eventually determining the relation between interstellar and solar system ices

Innovative ultrasound-assisted approaches towards reduction of heavy metals and Iodine in macroalgal biomass

The aim of this work was to evaluate the potential of ultrasound (US), alone or in combination with mild heating and/or EDTA towards reduction of As, Cd, I, and Hg content of Laminaria hyperborea. Concentrations of As, Cd, I, and Hg of 56.29, 0.596, 7340, and <0.01 mg kg−1 of dry weight, respectively, were found in L. hyperborea blades. Treatment with US at 50 °C increased approx. 2-fold the amount of As released, although did not affect significantly the content of Cd or I, as compared to control (no US) samples. Reducing the temperature to 8 °C significantly decreased the effect of US, but heating at 80 °C did not cause a significant effect as compared to treatments at 50 °C. On the other hand, treatment with 0.1 N EDTA at 50 °C enhanced the percentage of Cd released by approximately 7-fold, regardless of sonication. In the present work, the combination of US and EDTA at 50 °C for 5 min led to a significant reduction of the As (32%), Cd (52%) and I (31%) content in L. hyperborea, thus improving the product’s safety for consumers

Descubriendo Santa Celina: Resitours. Una experiencia de extensión e investigación en turismo

El presente trabajo tiene como objetivo dar cuenta de una experiencia de extensión e investigación y de sus resultados, inscripta en una Actividad de Extensión desarrollada en la la Universidad Nacional de Mar del Plata (UNMdP). Dicha actividad, denominada "Descubriendo Santa Celina: Resitours", fue realizada durante el periodo octubre 2022 - mayo 2023. A partir del trabajo realizado en el año 2021, en el marco del cumplimiento del requisito curricular y acreditación de las horas de prácticas sociocomunitarias de la carrera Licenciatura en Turismo que se dicta en la Facultad de Ciencias Económicas y Sociales (UNMdP), surgió la idea de continuar con esta propuesta allí planteada. La experiencia que aquí se presenta también retoma la noción de identidad barrial abordada en aquel trabajo de las prácticas sociocomunitarias. Según Verga, Bado y Forzinetti (2015), este concepto pone en valor ciertas características particulares de un barrio y que, a su vez, genera aptitudes que lo diferencian de otros.Fil: Noriega, Lucas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Económicas y Sociales; Argentina.Fil: Castellucci, Daniela I. Universidad Nacional de Mar del Plata. Facultad de Ciencias Económicas y Sociales; Argentina