Tanta, located in the central highlands of Lima, south-west of Mount Pariacaca at 4,300 meters above sea level, is a small community of adobe houses and red gable roofing, and with approximately four hundred inhabitants. No internet service is in place but there is, nonetheless, access to water, electricity and a cell-phone signal. The climate in Tanta is bitterly cold. Edith Fernández-Baca, the coordinator of the Mountain Ecosystems-Based Adaptation Project in Peru explains: “When the study relating to vulnerability to climate change was carried out, we realized that Tanta, as a watershed that gives rise to the Cañete, Mantaro and Pachacayo rivers, should be of prime concern in executing our programme.”
Common practices of people in this area led to domestic livestock invading the region of Moyobamba, a natural grassland area of the highlands that is home to many vicuña, resulting in the topsoil being damaged. “Such activity produced soil erosion, exacerbated by changes in rainfall, and impeded the capture and penetration of water, causing runoff and erosion,“ recounts Rommel Segura, a Tanta-based expert in pastureland and livestock, and an agronomist. Indeed, many experts predict that, if the current situation were to continue, by 2030 Tanta would suffer unprecedented water stress. But that would not be the worst-case scenario: in fact, even coastal areas such as Cañete and Lima would see their water supply (for human consumption, agriculture and electricity) depleted considerably. Segura continues: “Similarly, the unbridled coexistence of vicuñas with domestic livestock has resulted in the spread of parasitic diseases, especially scabies in alpacas and llamas.”
Therefore it is timely to discuss the subject of chaccu, a type of method for herding animals in an effort to enclose them and usually shear them. However, on this occasion, this traditional activity has another objective: medicating animal with a view to combating scabies that is leading to mortality among the animals.
“Chaccu, from an animal health perspective, is carried out in the context of a larger strategy of EbA measures: livestock management and the return of domestic species to communal farms, working effectively with Andean highland pastures and water resources, and strengthening the management of vicuñas and the ecosystem,” explains Woodro Andia, field coordinator of the EbA Mountain project. Andia stresses, however, that “all decisions and proposals for the project and the National Service for State-Protected Natural Areas (SERNANP), a strategic partner in this context, are not implemented without the express consent of people of Tanta.” The chaccu is highly compatible with EbA measures because it does not involve a permanent “gray infrastructure” (traditional water management systems) but aims to strengthen the conservation of the local ecosystem, flora and fauna.