The Islas Marías (or Mary's Island) Biosphere Reserve (established 2010) is a

UNESCO The United Nations Educational, Scientific and Cultural Organization (UNESCO ) is a List of specialized agencies of the United Nations, specialized agency of the United Nations (UN) with the aim of promoting world peace and International secur ...

Biosphere Reserve A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, funga, or features of geologic ...

located in the Islas Marías in the municipality (''municipio'') of

San Blas, Nayarit San Blas is both a municipality and municipal seat located on the Pacific coast of Mexico in Nayarit. City San Blas is a port and popular tourist destination, located about north of Puerto Vallarta, and west of the state capital Tepic, and thr ...

, Mexico. The reserve includes

ecosystem An ecosystem (or ecological system) is a system formed by Organism, organisms in interaction with their Biophysical environment, environment. The Biotic material, biotic and abiotic components are linked together through nutrient cycles and en ...

s with a great wealth of species of biological, economic, scientific and cultural relevance. Its biological wealth is to be found in the dry forests of its landscape, in the

mangrove A mangrove is a shrub or tree that grows mainly in coastal saline water, saline or brackish water. Mangroves grow in an equatorial climate, typically along coastlines and tidal rivers. They have particular adaptations to take in extra oxygen a ...

s, the succulent rosette

scrubland Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominance (ecology), dominated by shrubs, often also including grasses, herbaceous plant, herbs, and geophytes. Shrubland may either occur naturally o ...

, the reefs, coasts and pelagic environments it harbors.

Human activities

Since 1905 the Islas Marías Federal Prison has operated on María Madre Island, using the island’s natural resources. The prison colony is mainly engaged in agriculture, animal husbandry, forest harvesting and fishing. In this respect, in order to protect and conserve the reserve’s natural resources and the ecological processes that take place there, it is important to promote sustainable resource use and guarantee ecosystem conservation and integrity to enable the population of the Penitentiary Colony to remain on the island in the long term. One of the strategic lines established in the reserve’s Conservation and Management Plan is to include environmental conservation in the social re-adaptation process promoted by the penitentiary authorities, by involving the inhabitants of the penitentiary in natural resource protection and sustainable management activities.

Ecological characteristics

Because of its isolation for over eight million years, Islas Marías' importance as an ecosystem is manifest in its function as a reservoir to Mexico of

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

species. Fifty-four species of land and marine

fauna Fauna (: faunae or faunas) is all of the animal life present in a particular region or time. The corresponding terms for plants and fungi are ''flora'' and '' funga'', respectively. Flora, fauna, funga and other forms of life are collectively ...

are protected under some risk category and of these, 19 are endemic. Regarding the flora, 11 endemic or restricted distribution taxa have been recorded, together with six species (one endemic) that are included in a risk category according to NOM-059-SEMARNAT-2001. Furthermore, the reserve is an important refuge, nesting and feeding site for large colonies of sea birds. The marine environment is highly productive, reflected in the great diversity of organisms to be found, such as coral reefs, reef-fish, sharks, rays, turtles and marine mammals.

Flora and fauna

According to the National Biodiversity Information System of

Comisión Nacional para el Conocimiento y Uso de la Biodiversidad The (CONABIO; ) is a permanent inter-ministerial commission of the Mexican government, Federal Mexican government, created in 1992. It has the primary purpose of coordinating, supporting and executing activities and projects designed to foment u ...

(CONABIO) in Islas Marías Biosphere Reserve there are over 945 plant and animal species from which 29 are in at risk category and 12 are exotics.

Sources

References

{{DEFAULTSORT:Islas Marias Biosphere Reserve Biosphere reserves of Mexico Protected areas of Nayarit Islas Marías Jalisco dry forests