Cattle grazing and fire are common types of management on natural ecosystems, generating several threats to the conservation of native vegetation (e.g., changes in species richness, cover, and abundance, mainly of bovine-palatable species). In this work, we analysed the response of the structure and composition of vegetation managed with different cattle stocking rates and fire in the savanna ecosystems of Colombia. The study was located in the eastern area of the Llanos region, where savannas were subjected to grazing and burning.
Résultats de la rechercheShowing items 1 through 9 of 110.
Library ResourcePublication évaluée par des pairsfévrier, 2021Bosnie-Herzégovine, Colombie, États-Unis d'Amérique
Library ResourcePublication évaluée par des pairsfévrier, 2021Argentine, Terres australes et antarctiques françaises, Brésil, Canada, Espagne, Paraguay, États-Unis d'Amérique, Amérique du Sud
The stabling of livestock farming implies changes in both local ecosystems (regeneration of forest stands via reduced grazing) and those located thousands of kilometers away (deforestation to produce grain for feeding livestock). Despite their importance, these externalities are poorly known. Here we evaluated how the intensification and confinement of livestock in Spain has affected forest surface changes there and in South America, the largest provider of soybeans for animal feed to the European Union.
Library ResourcePublication évaluée par des pairsjuin, 2018Brésil, Grèce, États-Unis d'Amérique
Discussions about climate change have repeatedly regarded livestock as responsible for a significant contribution of greenhouse gas emissions. However, proper management schemes for livestock production may contribute to a reduction in emissions and, at the same time, induce optimization of production systems and intensification of food production.
Library ResourcePublication évaluée par des pairsseptembre, 2020Colombie, Portugal, États-Unis d'Amérique
Nine Latin American countries plan to use silvopastoral practices—incorporating trees into grazing lands—to mitigate climate change. However, the cumulative potential of scaling up silvopastoral systems at national levels is not well quantified. Here, we combined previously published tree cover data based on 250 m resolution MODIS satellite remote sensing imagery for 2000–2017 with ecofloristic zone carbon stock estimates to calculate historical and potential future tree biomass carbon storage in Colombian grasslands.
Library ResourcePublication évaluée par des pairsjuillet, 2020Italie
Livestock farming systems have an important role in the territorial systems of the Mediterranean, but in the last twenty years the sector has undergone serious changes with an important decrease in the number of farms. The purpose of this study is to show the contribution of a local food certification to the resilience of peri-urban livestock farming system and of its food supply chain at territorial level.
Library ResourcePublication évaluée par des pairsjanvier, 2020Grèce, Europe
Mediterranean regions are likely to be the most vulnerable areas to wildfires in Europe. In this context, land-use change has promoted land abandonment and the consequent accumulation of biomass (fuel) in (progressively less managed) forests and (non-forest) natural land, causing higher fire density and severity, economic damage, and land degradation. The expansion of Wildland-Urban Interfaces (WUIs) further affects fire density by negatively impacting peri-urban farming and livestock density.
Library ResourceArticles et Livresdécembre, 2016Grèce
Mediterranean landscapes have been formed through human activity for millennia, which resulted in a particularly rich and rare biodiversity. Among these activities grazing is the most beneficial on biodiversity. However, the sheep and goat sector is rapidly transforming into sedentary-housed types and pastoral land is abandoned. The Greek example is presented and a range of policies are suggested to halt this trend and conserve pastoral land biodiversity in Mediterranean
Library ResourceArticles et Livresdécembre, 2016Grèce
In semi-arid areas of the Mediterranean basin, sheep and goat herding has been a land management activity for millennia. In the last decades, intensification of grazing has resulted in grazing land degradation. Today, many sheep farms face growing dependence from feed to cover the dietary needs of animals, as grazing land productivity covers only a fraction of these needs and decreasing economic outputs. In this paper, we present a conceptual framework for linking grazing lands management practices and economic viability of sheep farms in Agra, a village in Western Lesvos.
Library ResourceArticles et Livresdécembre, 2016Albanie
The paper aims to present changes and current dynamics of mountainous pastoral systems in Southern Albania (Korca region) and to identify origin-based quality products as a strategy for sustainable rural development. According to the historical data (available or reconstructed through interviews), rapid and unregulated changes in mountainous productive systems within the post-communism transition threaten local natural resources and cultural landscapes.
Library ResourceDocuments et rapports de conférencedécembre, 2018Lettonie, Italie
There are many methods to estimate wild ungulate populations. One of these is represented by observations from vantage points usually employed in medium-low covered forest areas to estimate cervids. This method is subject to some limitations, such as the risk of double counting and the necessity to a high number of operators due to the small size of the observable areas. Such limitations could be reduced by integrating the “vantage points method” with Remote Piloted Aircraft System (R.P.A.S.) surveys.
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