Person: Rescia Perazzo, Alejandro Javier
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First Name
Alejandro Javier
Last Name
Rescia Perazzo
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Ciencias Biológicas
Department
Biodiversidad, Ecología y Evolución
Area
Ecología
Identifiers
5 results
Search Results
Now showing 1 - 5 of 5
Item Methodological approach to spatial analysis of agricultural pest dispersal in olive landscapes(Environmental Monitoring and Assessment, 2022) Moreno, A.; Rescia Perazzo, Alejandro Javier; Pascual, S.; Ortega, M.The effectiveness of a Geographical Information Systems cost-distance tool for detecting landscape permeability in relation to the movement of pests in olive landscapes was established. The simplification of agricultural systems is linked to an increased incidence of pests on crops. Therefore, it is important to understand the impact of different land uses surrounding olive groves on pests. In this work, we analysed the effect of the structure of the olive landscape on the movement of two main olive pests—the olive fruit fly, Bactrocera oleae (Rossi) (Diptera: Tephritidae) and the olive moth, Prays oleae (Bernard) (Lepidopetera: Praydidae). We applied linear mixed effects models to analyse the relationship between pest abundance and cost-distance, using different hypotheses to evaluate those land uses that are favourable or unfavourable for the movement of these pests. The results show that this methodology is effective in detecting possible unfavourable land uses with a barrier effect, such as woodland and artificial land uses, and favourable land uses with a corridor effect such as olive groves. Whether other land uses, such as scrubland or riverbanks, act as a barrier or corridor depends on the pest and its life cycle stage. The effect that different land uses have in maintaining low levels of pest populations and ensuring the long-term sustainability of these agricultural systems are discussed. The implications of landscape permeability for the physical structure of the landscape and the dispersal of organisms, and the potential of that landscape to impact the continuous flow of natural processes are also addressed.Item A multifunctional assessment of integrated and ecological farming in olive agroecosystems in southwestern Spain using the Analytic Hierarchy Process(Ecological Economics, 2020) Rodríguez Sousa, Antonio Alberto; Parra López, G.; Sayadi-Gmada, Samir; Barandica Fernández, Jesús María; Rescia Perazzo, Alejandro JavierOlive agroecosystems have for several decades undergone management changes aimed to meet the demands of new agricultural policy trends and of consumers and society. While the main role of olive groves is the production of olives and oil, its multifunctional performance is supported through the European and regional legislative framework, promoting the recognition of non-productive ecosystem services provided by agriculture to society. The objective of this work is to compare two types of olive grove management (integrated and ecological) under the multifunctionality of agriculture (MFA) approach, in Estepa (Andalusia, Spain). To this end, environmental, economic and social indicators were considered. Subsequently, the multifunctional behaviour of olive groves under different management schemes was evaluated using the multicriteria Analytic Hierarchy Process (AHP) methodology. Ecological farming presented greater valuation in the satisfaction of social demands, with better weightings in all the indicators evaluated, except for farm income and Lepidoptera richness. Thus, the implementation of practices related to ecological management leads to a greater multifunctionality of olive groves. It is thus fundamental that multi-scale policies consider the value of the environmental externalities of this type of management, favouring its implementation to contribute positively to the multifunctionality and sustainability of olive groves in Andalusia.Item Examining potential environmental consequences of climate change and other driving forces on the sustainability of spanish olive groves under a socio-ecological approach(Agriculture, 2020) Rodríguez Sousa, Antonio Alberto; Barandica Fernández, Jesús María; Aguilera, Pedro A.; Rescia Perazzo, Alejandro JavierOlive groves form characteristic Mediterranean socio-ecological landscapes, occupying more than 5 M ha; 2.5 M ha in Spain. In recent decades, traditional extensive management of olive groves has shifted to an intensive regime, with some cases of abandonment. These situations triggered negative environmental and economic externalities that led farmers to adopt increasingly multifunctional management models. From a transdisciplinary perspective, the current state of Spanish olive groves was analyzed, assessing their vulnerability to climate change as one of the main threats to their sustainability. Based on our findings and assuming that by 2050, in the Mediterranean, there will be an increase in temperature of 0.8–2.3 ◦C and a decrease in rainfall of up to 200 mm per year, a displacement of the distribution area of olive groves is expected towards zones of lower temperature and higher moisture. The predicted climatic conditions would increase evapotranspiration of vegetation and atmospheric CO2 emissions. Moreover, climate change will reduce the chill accumulation in olive groves, altering its flowering, fructification and crop yields. Thus, it is necessary to adopt management models that promote olive grove resilience in face of climate change, ensuring their socio-ecological sustainability.Item Impacts of erosion on the sustainability of organic olive groves: a case study (Estepa Region, Southwestern Spain)(Sustainability, 2021) Rodríguez Sousa, Antonio Alberto; Parra López, Carlos; Sayadi Gmada, Samir; Barandica Fernández, Jesús María; Rescia Perazzo, Alejandro JavierSpain has more than 2.5 M ha of olive groves, with 60% of this area (i.e., 1.5 M ha) concentrated in the region of Andalusia (Southern Spain). Assuming the socio-ecological characteristics of these crops, of which their contribution to ecosystemic services (ES) is fundamental for society, it is highly relevant to direct their management towards practices that guarantee their durability. Organic management of olive groves constitutes a multifunctional model that contributes to ensuring its sustainability and represents 2.4–3.5% of the olive grove area in Spain. Taking the Protected Designation of Origin (PDO) Estepa (Southwestern Spain) as a study model, where organic olive groves are novel, a study of the impacts of erosion on the economic, social, and environmental factors associated with this management was carried out in addition to estimating its impacts. The results showed how organic management promotes edaphic fertility, keeping the levels of diffuse pollution under the legislative limits. Although the increase in erosion has negative effects on the sustainability/durability of agricultural holdings, organic management consolidates a sustainable model that satisfies farmers’ demands. Therefore, organic farming is a model that focuses on the correct use of natural resources associated with the geographical region of study, and contributes to increasing the sustainability of olive groves.Item Evaluation of the objectives and concerns of farmers to apply different agricultural managements in olive groves: the case of Estepa Region (Southern, Spain)(Land, 2020) Rodríguez Sousa, Antonio Alberto; Parra López, Carlos; Sayadi-Gmada, Samir; Barandica Fernández, Jesús María; Rescia Perazzo, Alejandro JavierOlive groves are representative of the landscape and culture of Spain. They occupy 2.5 M ha. (1.5 M ha in Andalusia) and are characterised by their multifunctionality. In recent years, socio-economic and environmental factors (i.e., erosion) have compromised their sustainability, leading farmers to abandon their farms or intensify their management. The main objective/purpose of this research was to study the drivers and concerns that condition farmers’ choice of a given olive grove management model. Taking the Estepa region as a case study (Andalusia, Spain), surveys were conducted among farmers with integrated and organic managed olive groves. The socio-economic aspects were the main objectives and concerns of the farmers with integrated olive groves. In the case of farmers with organic management, conservation objectives prevailed, and their concerns were oriented to environmental threats. The education level was a key factor in the adoption of given farm management, as it increased the level of environmental awareness. In the context of multifunctional agriculture, it would be desirable to increase this awareness of the environmental threats against olive groves, in order to provide incentives for the implementation of agri-environmental practices that would enhance the sustainability of these systems.