Matías E. Mastrángelo

National University of Mar del Plata

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Sebastián Horacio Villarino

National University of Mar del Plata

Sebastián Aguiar

Agricultural Plant Physiology and Ecology Research Institute

María Vallejos

University of Buenos Aires

María Paula Barral

National University of Mar del Plata

José M. Paruelo

Universidad de la República

Tobias Kuemmerle

Humboldt-Universität zu Berlin

Pedro Laterra

Consejo Nacional de Investigaciones Científicas y Técnicas

Leandro Macchi

Consejo Nacional de Investigaciones Científicas y Técnicas

Gregorio Gavier-Pizarro

National Agricultural Technology Institute

Julieta Decarre

Humboldt-Universität zu Berlin

Cooperative Institutions

Consejo Nacional de Investigaciones Científicas y Técnicas

170

Birds Canada

147

University of Buenos Aires

National Agricultural Technology Institute

Centro Científico Tecnológico - San Juan

Centro Científico Tecnológico - Tucumán

Universidad Nacional de Córdoba

National University of Mar del Plata

Fundación Ciencias Exactas y Naturales

Universidad Nacional Autónoma de México

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Roads and land tenure mediate the effects of precipitation on forest cover change in the Argentine Dry Chaco

Land Use Policy (2021)

Sebastián Aguiar Matías E. Mastrángelo Marcos Texeira Patrick Meyfroidt José Volante

Deforestation

Explanatory power

Land Cover

10.1016/j.landusepol.2021.105806

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Citations (11)

Transformative governance for linking forest and landscape restoration to human well-being in Latin America

Ecosystems and People (2021)

Sebastián Aguiar Matías E. Mastrángelo Pedro H. S. Brancalion Paula Meli

Tree planting and reforestation are currently in the spotlight as strategies for solving global environmental degradation. Many ongoing large-scale initiatives have proposed restoring millions of hectares and planting a trillion trees to solve climate change and biodiversity loss. Forest and landscape restoration (FLR) is one of the approaches most frequently employed to support these initiatives. Currently, many FLR initiatives are implemented in developing countries through a top-down approach, not fully anchored to the social-ecological characteristics of landscapes (e.g. land use and tenure, values of local peoples, local livelihoods), and sometimes relegating human well-being to a secondary concern. Therefore, issues of social equity and legitimacy might hamper the effectiveness of FLR initiatives and projects regarding their environmental outcomes. In this perspective article, we present four challenges to better link FLR and human well-being in Latin America: (1) the high dependence of local communities and countries' economies on natural resources, (2) conflicts over land tenure and access, (3) divergence in perceptions and values, and (4) the fragility of public institutions and policies. After describing these interrelated challenges, we discuss how to tackle them by implementing instruments and approaches recently organized under the concept of transformative governance. Finding an equitable and legitimate balance between global interests and urgency and increasing local well-being is the main challenge of FLR in Latin America, for which transformative governance is critical.

Reforestation

Transformative Learning

Civil Society

Grassroots

10.1080/26395916.2021.1976838

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Citations (14)

How do habitat amount and habitat fragmentation drive time-delayed responses of biodiversity to land-use change?

Proceedings of the Royal Society B Biological Sciences (2021)

Asunción Semper‐Pascual A. Cole Burton Matthias Baumann Julieta Decarre Gregorio Gavier-Pizarro

Land-use change is a root cause of the extinction crisis, but links between habitat change and biodiversity loss are not fully understood. While there is evidence that habitat loss is an important extinction driver, the relevance of habitat fragmentation remains debated. Moreover, while time delays of biodiversity responses to habitat transformation are well-documented, time-delayed effects have been ignored in the habitat loss versus fragmentation debate. Here, using a hierarchical Bayesian multi-species occupancy framework, we systematically tested for time-delayed responses of bird and mammal communities to habitat loss and to habitat fragmentation. We focused on the Argentine Chaco, where deforestation has been widespread recently. We used an extensive field dataset on birds and mammals, along with a time series of annual woodland maps from 1985 to 2016 covering recent and historical habitat transformations. Contemporary habitat amount explained bird and mammal occupancy better than past habitat amount. However, occupancy was affected more by the past rather than recent fragmentation, indicating a time-delayed response to fragmentation. Considering past landscape patterns is therefore crucial for understanding current biodiversity patterns. Not accounting for land-use history ignores the possibility of extinction debt and can thus obscure impacts of fragmentation, potentially explaining contrasting findings of habitat loss versus fragmentation studies.

Extinction debt

Habitat Fragmentation

Fragmentation

Extinction (optical mineralogy)

Occupancy

Deforestation

10.1098/rspb.2020.2466

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Citations (46)

Mapping extinction debt highlights conservation opportunities for birds and mammals in the South American Chaco

Journal of Applied Ecology (2018)

Asunción Semper‐Pascual Leandro Macchi Francesco Sabatini Julieta Decarre Matthias Baumann

Abstract Habitat loss is the primary cause of local extinctions. Yet, there is considerable uncertainty regarding how fast species respond to habitat loss, and how time‐delayed responses vary in space. We focused on the Argentine Dry Chaco ( c . 32 million ha), a global deforestation hotspot, and tested for time‐delayed response of bird and mammal communities to landscape transformation. We quantified the magnitude of extinction debt by modelling contemporary species richness as a function of either contemporary or past (2000 and 1985) landscape patterns. We then used these models to map communities' extinction debt. We found strong evidence for an extinction debt: landscape structure from 2000 explained contemporary species richness of birds and mammals better than contemporary and 1985 landscapes. This suggests time‐delayed responses between 10 and 25 years. Extinction debt was especially strong for forest specialists. Projecting our models across the Chaco highlighted areas where future local extinctions due to unpaid extinction debt are likely. Areas recently converted to agriculture had highest extinction debt, regardless of the post‐conversion land use. Few local extinctions were predicted in areas with remaining larger forest patches. Synthesis and applications . The evidence for an unpaid extinction debt in the Argentine Dry Chaco provides a substantial window of opportunity for averting local biodiversity losses. However, this window may close rapidly if conservation activities such as habitat restoration are not implemented swiftly. Our extinction debt maps highlight areas where such conservation activities should be implemented.

Extinction debt

Extinction (optical mineralogy)

Deforestation

10.1111/1365-2664.13074

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Citations (65)

Ecosystem services research in contrasting socio-ecological contexts of Argentina: Critical assessment and future directions

Ecosystem Services (2015)

Matías E. Mastrángelo Federico Weyland Lorena Herrera Sebastián Horacio Villarino María Paula Barral

10.1016/j.ecoser.2015.10.001

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Citations (51)

Il passaparola digitale nei forum di viaggio: mappe esplorative per l’analisi dei contenuti

Rivista italiana di economia, demografia e statistica (2012)

D Iezzi Matías E. Mastrángelo

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Easier said than done: Shifting social imaginaries of rural landscapes of the Chaco-Pampas plain, Argentina (1996–2020)

Journal of Rural Studies (2023)

Matías E. Mastrángelo Aldana Ciani Federico Weyland Alejandra Auer Jonathan von Below

The Imaginary

Vision

Dominance (genetics)

Leverage (statistics)

10.1016/j.jrurstud.2023.103093

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Conservation on the Frontier: Understanding and Influencing How Cattle Production Impacts Avian Diversity in the Dry Chaco Forests of Argentina

Matías E. Mastrángelo

<p>This thesis combines the identification of land-use strategies that provide high yields and high biodiversity with the identification of the psycho-social drivers of land-use decisions in an agricultural landscape. I visited 116 landholdings in two agricultural landscapes of the Dry Chaco region in Argentina. In 27 landholdings producing beef cattle in production systems of different land-use intensity, I collected empirical information on: (i) cattle yields, (ii) avian diversity, density and composition, and (iii) structural attributes of habitat in the agricultural matrix. The Chaco avifauna responded non-linearly to increasing cattle production intensification as bird species richness was relatively unchanged from forests to intermediate-intensity silvopastoral systems and decreased sharply at high-intensity pasture systems. This pattern indicated the presence of a threshold in habitat quality for birds when native tree cover falls below 30%. The concave trade-off function suggests that land-sharing through the integration of native trees and pastures in silvopastoral systems has more potential than land-sparing to simultaneously provide high cattle yields and high bird diversity. Intermediate-intensity silvopastoral systems may represent a matrix type of high habitat quality for most bird species due to the lower frequency and intensity of disturbances resulting from agricultural management, compared to high-intensity systems. Bird functional groups responded differently to agricultural intensification and habitat modification. Forest-restricted and fruit-eating bird species occurred at low density in intermediate-intensity silvopastoral systems and disappeared from high-intensity pasture systems. Therefore, low-intensity systems and forest fragments (larger than 1000 ha) should be maintained in the landscape to provide habitat for species of high conservation concern and potentially contributing to forest regeneration. In 89 landholdings varying in landholding size and land tenure condition, I interviewed landholders and collected information about their beliefs, values and perceptions regarding conservation of remnant forest fragments. Based on this information, I tested the ability of three social psychological models and nine psycho-social constructs to explain landholders’ conservation intentions. The Theory of Planned behaviour provided a parsimonious and plausible explanatory model of landholders’ intentions to conserve remnant forest fragments in their landholdings. A model integrating self-interest and pro-social motives as proximal predictors and self-identity as the ultimate predictor explained 42% of the variance in landholders’ conservation intentions. The perceived pressure from relevant others to conserve forests (i.e. social norms) and the tendency to value forests favourably or unfavourably (i.e. attitudes) directly and significantly influenced landholders’ willingness to set-aside remnant forests in their landholdings. Landholders’ self-identity and their level of awareness of the scale and consequences of deforestation underlay the effects of social norms and attitudes on conservation intentions. Policy interventions aimed at influencing the behaviour of landholders towards more conservation-oriented outcomes would be more effective if tailored to the characteristics of landholder identity groups. Influencing conservation intentions of high-intensity, productivist landholders may require policy incentives and regulations that link better environmental performance with agricultural production outcomes and can become peer-enforced in the long-term. Conservation and development outcomes can be jointly enhanced for low-intensity, pre-productivist landholders through policies that secure their land tenure and facilitate the implementation of silvopastoral systems.</p>

Agricultural land

10.26686/wgtn.17006392.v1

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Citations (1)

Aproximaciones al estudio del comportamiento de los productores agropecuarios en el Chaco Seco

Ecología Austral (2018)

Matías E. Mastrángelo

In our country, ecologists are increasingly called to play a more active role in natural resource management and in rural ecosystem and landscape planning. The effectiveness of management and planning depends to a large extent on the ability to transform the human behaviors that most influence the state of ecosystems and landscapes. Therefore, the capacity of research processes and results in ecology to transform the reality of territories can be enhanced by its integration with conceptual and methodological elements of the human behavioral sciences. In the territory, changes in land use and land cover are the result of a multiplicity of decisions made by those individuals that affect and beneft from ecosystems, mostly farmers. This paper reviews theories, concepts, methods and applications of social psychology to make visible and discuss their real and potential contributions to the research and management of rural ecosystems and landscapes subject to transformation by agriculture, which are illustrated by studies in the Argentine Dry Chaco. The Theory of Planned Behavior proved to be a conceptual and analytical model of great synoptic value to understand the endogenous motivational factors that influence the formation of intentions to conserve remnant forests by agricultural producers. The social valuation of ecosystem services made it possible to observe the diversity of identities and valuation profles that coexist in the territory. Finally, overlapping trade-off and indifference curves proved to be a simple and powerful tool for linking ecological and preference trade-offs, and for identifying barriers and opportunities for farmers to transition to land use systems that are both biophysically efficient and socially acceptable.https://doi.org/10.25260/EA.18.28.2.0.644

10.25260/ea.18.28.2.0.644

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Application of organic amendments to improve land utilization system of fodder crops.

Fresenius environmental bulletin (2010)

D. Ferri Francesco Montemurro Giambattista Debiase Angelo Fiore G. Convertini

Fodder

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Citations (1)