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| Bahuas–Marcasha Reserve | |
|---|---|
| Name | Bahuas–Marcasha Reserve |
| Iucn category | VI |
| Location | Ancash Region, Peru |
| Nearest city | Huaraz |
| Area km2 | 85 |
| Established | 1999 |
| Governing body | National Service of Natural Areas Protected by the State |
Bahuas–Marcasha Reserve is a protected area situated in the high Andes of the Ancash Region of Peru. The reserve protects montane ecosystems and glacial headwaters that feed into tributaries of the Santa River, and it forms part of a network of conservation units in the Cordillera Blanca. Designed to conserve hydrological resources and Andean biodiversity, the reserve interfaces with nearby national parks, regional governments, and indigenous territories.
The reserve was established to safeguard water sources and puna and jalca landscapes in proximity to the Cordillera Blanca and Cordillera Negra, complementing protections afforded by Huascarán National Park and the Ancash regional conservation strategy. The designation reflects concerns raised by scientific institutions such as the National Agrarian University La Molina and environmental organizations including CONDESAN and Peruvian Society for Environmental Law. It receives attention from international partners like the United Nations Development Programme and the World Bank for watershed resilience and climate adaptation initiatives.
Located in the Asunción Province and bordering districts like Chacas and Acochaca, the reserve occupies steep terrains between approximately 3,200 and 5,200 meters elevation. It encompasses glacial cirques and high-altitude wetlands (bofedales) that contribute to the headwaters of the Santa River. Topographic gradients link the reserve to the Marcará Fault vicinity and the broader Andean orogeny tied to the Nazca Plate–South American Plate convergence. Access routes originate from regional hubs such as Huaraz and Carhuaz, and the area lies within the administrative scope of the Ministry of Environment (Peru) and the regional office of the Autonomous Regional Government of Ancash.
The reserve contains puna grasslands, high Andean wetlands, Polylepis woodlands, and remnants of montane shrubland, hosting flora associated with genera like Polylepis, Escallonia, and Puya. Faunal assemblages include emblematic Andean species such as the vicuña, Andean fox, spectacled bear, and highland waterfowl linked to the Andean condor's foraging range. Amphibian and insect communities reflect endemism comparable to documented records in the Cordillera Huayhuash and Cordillera Blanca complexes. The reserve supports populations of threatened taxa evaluated by the International Union for Conservation of Nature, and its wetlands act as breeding habitat for migratory species catalogued by the Convention on Migratory Species.
Management is coordinated through the National Service of Natural Areas Protected by the State in partnership with the Regional Government of Ancash and local municipal authorities. Co-management agreements involve indigenous federations such as the Federación Nativa del Río Madre de Dios model in other regions and local peasant communities (comunidades campesinas) recognized under the Peruvian Agrarian Law reform framework. Conservation strategies integrate watershed protection promoted by SERNANP-aligned programs, climate change adaptation pilots supported by the Green Climate Fund-linked projects, and technical guidance from research centers like the Peruvian Instituto de Montaña and International Centre for Integrated Mountain Development collaborators.
Traditional highland communities inhabit buffer zones, practicing pastoralism centered on camelids and seasonal agriculture of tubers familiar in Andean agronomy from the Central Andes. These communities maintain customary land tenure analogous to arrangements codified under the Peruvian Constitution and regional ordinances. Cultural landscapes reflect ties to Andean cosmologies observed in sites across Ancash and rituals shared with neighboring districts such as Yungay. Local governance includes community assemblies similar to structures documented by the National Institute of Development (Peru) and engages nongovernmental organizations like CARE Peru for sustainable livelihoods.
Key threats include glacier retreat observed across the Cordillera Blanca due to anthropogenic climate change linked to emissions trajectories addressed by the Paris Agreement, agricultural expansion, overgrazing by camelids, and unregulated mining pressure similar to conflicts recorded in Cajamarca and Puno regions. Hydrological alterations from glacial loss increase flood and drought risks documented by the Intergovernmental Panel on Climate Change assessments, while invasive plant species and fire regimes threaten native puna resilience. Policy responses intersect with national mining law reforms and water resource governance debates involving the National Water Authority (Peru).
Ongoing monitoring includes glacier mass-balance and hydrological studies coordinated with the Peruvian Geophysical Institute, biodiversity inventories linked to the Museo de Historia Natural UNMSM, and participatory monitoring initiatives funded by the National Council for Science, Technology and Technological Innovation and international donors like the Global Environment Facility. Citizen science and community-based monitoring leverage methodologies developed by CONDESAN and the Mountain Research Initiative to track changes in snowpack, flora phenology, and wildlife sightings. Collaborative projects with universities such as Universidad Nacional Santiago Antúnez de Mayolo and international partners including University of Zurich and University of Geneva aim to model future water availability scenarios and support adaptive management planning.
Category:Protected areas of Peru Category:Geography of Ancash Region