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      Biosphere Reserve Information



  General Description   Sierra La Laguna Biosphere Reserve is located in the State of Baja California Sur, close to the southern tip of Baja California Peninsula. This semi arid to temperate subhumid climate area represents highly important and contrasted ecosystems, including arid zones, matorrales, low deciduous forest type, evergreen oak: Quercus devia (“encino”) woods, pine-evergreen oak mix woods and oases with palms and “guerivos” situated throughout the gallery forest following the long river basins. The variety of ecosystems leads to a very rich biodiversity with 974 higher plant species reported of which 23.2% endemic species, including 5 endemic geneva. Higher degrees of endemic species are found in the core area zone mainly in the pino-encino ecosystem.
Within its 11,600 hectares Sierra La Laguna represents not only a diversity of natural habitats, but also of land cover derived from human activities such as profitable use of timber and non-timber forest products, extensive farming including cattle raising, which is practised by 90% of the communities living within the Biosphere Reserve. Moreover, this area is vital for ensuring the water supply of the main adjacent settlements. The Biosphere Reserve is set up by Presidential Decree of 6 June 1994, which under Mexican law establishes core areas and buffer zones only. The transition area corresponds to the “zona de influencia” covering the communities of Todos Santos, El Pescadero, El Triunfo, San Antonio, San Bartolo, Buena Vista, Los Barriles, Las Cuevas, Santiago and Miraflores, where 9.716 people live (2002).
With regard to research and monitoring, a planning programme “el Programa Operativo Annual (POA)” defines issues, actions and priorities for the coming year: research subject, awareness building programme, management strategies.
  Major ecosystem type   Tropical dry deciduous forest and semi-desert
  Major habitats & land cover types   Matorrals scrubs
Low deciduous and sub-deciduous forest
Evergreen oak (encino) woods
Pine and evergreen oak woods
Natural pasture and pine vegetation
Gallery forests
  Location   23°42’S - 23°20’ S;
109°46’ - 110°11’ W
  Area (hectares)    
  Total   112,522
  Core area(s)   32,519
  Buffer zone(s)   80,003.5 (of which 600 for ecotouristic activities)
  Transition area(s) when given   N/A
  Altitude (metres above sea level)   400 - 2,080
  Year designated   2003
  Administrative authorities   Comisión Nacional de Áreas Naturales Protegidas (CONANP) through the direction of the Reserva de la Biosfera Banco Chinchorro. CONANP is attached to the Secretaría de Medio Ambiente y Recursos Naturales (SEMARNAT)
  Brief description   Hydrological basin research and monitoring
Water quality research of main springs
Erosion dynamics and the impact of erosion on plant cover and aquifer recharge
Simulation and patterns of forest fires and their consequences
Taxonomy of plants and animals plant cover
Identification and impact evaluation of pests and forest diseases
Studies on population dynamics of commercially important species
Monitoring of natural regeneration and dynamics in degraded areas and in the pino-encino ecosystem
Monitoring population of rare and endangered species
Human population: dynamics, activities and production techniques
Impact of grazing on the flora and fauna
Quantitative and qualitative inventory of sites with exotic fauna in order to establish new adapted control programmes
Carrying capacity studies in very frequented areas
Modelling in order to evaluate the impacts of productive activities and ecotourism
Development of methodologies to assess economical value of natural resources.
  Specific variables...    
  Abiotic   Climate, erosion, geology, geomorphology, hydrology, soil, water quality/chemistry.
  Biodiversity   Birds, fauna, fires/fire ecology, flora, forest systems, monitoring/methodologies, pests/diseases, phytosociology/succession, plants, population genetics/population dynamics, species inventorying/inventory, taxonomy, tropical dry forest, vegetation studies/plant cover.
  Socio-economic   Demography, economically important species, livestock and related impacts/overgrazing, mining, resource use, social/socio-economic aspects.
  Integrated monitoring   Carrying capacity/Sustainability, environmental change, land use/land cover, management issues, modelling, monitoring/methodologies.
  Contact address   Jesús Eleazar Quiñónes Gómez
Dirección de la Reserva de la Biosfera Sierra La Laguna
Melchor Ocampo No. 1045 E/Lic. Verdad y Marcelo Rubio
23000 La Paz, Baja California Sur
  Telephone   (52) 612 1226890
(52) 612 1239300
  Fax   (52) 612 1226890

Last updated: 08/03/2011

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