Emiliano Matias
In this project, we will evaluate the decline of extensive livestock grazing (ELD) in the Calchaquí Valley, Argentina, and assess its impacts on biodiversity. Our aim is to identify and spatially map areas where passive rewilding may be occurring (passive rewilding hotspots). Additionally, we will describe the influence of various socio-ecological factors on these processes. Finally, we will use this information to work collaboratively with local stakeholders in designing strategies that guide the trajectories of passive rewilding and ELD processes toward sustainable management of biodiversity and local livelihoods in these socio-ecological systems.
Vegetation sampling in Talapazo mountains, Valle Calchaquí, Tucumán, Argentina. ©Agostina Ferro.
The characteristics of the socio-ecological systems in the Calchaquí Valley require a holistic approach to develop appropriate and sustainable long-term conservation strategies. To address this, our work will focus on three main objectives: First, we will assess the responses of biodiversity (including vegetation, birds, and medium to large mammals) to the de-intensification of extensive livestock grazing in the region, comparing these responses with those in long-term livestock-excluded areas (such as National Parks), and identifying hotspots and coldspots of passive rewilding. Second, we will characterize the influence of various local and regional socio-ecological attributes on ELD and biodiversity, to infer potential future trajectories of wild mammal populations under different plausible socio-ecological scenarios in the studied system. Finally, we will validate this information through workshops with local stakeholders, enhancing our models and collaboratively developing conservation strategies for the identified hotspots and coldspots of passive rewilding.
Placing a camera-trap to monitor mammals in Caspinchango, Catamarca, Argentina. ©Emiliano Matias.
The Calchaqui Valley holds significant conservation value, as it is home to numerous endemic species, and cultural value, as it is largely inhabited by indigenous communities. Our approach aims to achieve positive outcomes not only for biodiversity but also for local livelihoods. Since livestock ranching is a traditional activity in the region, a better understanding of the links between land use and biodiversity can help develop tools to foster coexistence between biodiversity and livelihoods.
Bird sampling in Molle Yaco, Calchaquí Valley, Tucumán, Argentina. ©Emiliano Matias.