Chilean Matorral (NT1201) | |
---|---|
Ecology | |
Realm | Neotropical |
Biome | Mediterranean forests, woodlands, and scrub |
Borders | |
Geography | |
Area | 148,500 km2 (57,300 sq mi) |
Country | Chile |
Climate type | BSk: arid, steppe, cold arid |
Conservation | |
Protected | 2,947 km2 (2%) [1] |
The Chilean Matorral (NT1201) is a terrestrial ecoregion of central Chile, located on the west coast of South America. It is in the Mediterranean forests, woodlands, and scrub biome, part of the Neotropical realm.
The matorral ecoregion is characterized by a temperate Mediterranean climate, with rainy winters and dry summers, and lies between the arid Atacama Desert and the humid Valdivian temperate forests. The ecoregion is home to diverse plant communities, including matorral or tall shrubland, forests and woodlands, savannas, and low shrubland and scrub. [2]
The ecoregion is one of the world's five Mediterranean climate regions, which are all located in the middle latitudes on the west coast of continents. The Mediterranean Basin, the California chaparral and woodlands ecoregion of California and Baja California, the Cape Province of South Africa, and Southwest Australia are the other Mediterranean-climate regions. [3]
The Matorral occupies central Chile between 32° and 37° south latitude. The Pacific Ocean lies to the west, and the Chilean Coastal Range lies parallel to the coast. The Chilean Central Valley lies between the Coastal range and the Andes Mountains, which bound the matorral ecoregion on the east. To the north is the extremely dry Atacama desert, which separates the matorral from the tropical forests of northern South America. A semi-desert region known as El Norte Chico (the "little north") lies between 28° and 32° south latitude, and is the transition zone between the Atacama desert and the Matorral. To the south lies the cooler and wetter Valdivian temperate forests ecoregion, which includes transitional deciduous forests, including the Maulino forest of the Chilean Coast Range, along with most of South America's temperate rain forests. [2]
The Chilean Matorral ecoregion is home to several plant communities. Semi-desert scrub is common in the north, in the transition to the arid Atacama. Matorral, woodland, forest, and savanna occur further south [3]
The ecoregion has many endemic plant species, with affinities to the South American tropics, the Antarctic flora, and the Andes. About 95% of the plant species are endemic to Chile, including Gomortega keule , Pitavia punctata , Nothofagus alessandrii , and the Chilean wine palm, Jubaea chilensis.
Simonetti estimated that Mediterranean Chile had 200 native bird species, 37 mammals, 38 reptiles, and 12 amphibians, with 7 endemic birds, 7 endemic mammals, 31 endemic reptiles, and 6 endemic amphibians. [7]
Endemic and near-endemic birds include the Chilean tinamou (Nothoprocta perdicaria), moustached turca (Pteroptochos megapodius), white-throated tapaculo (Scelorchilus albicollis), Ochre-flanked tapaculo (Eugralla paradoxa), crag earthcreeper (Ochetorhynchus melanurus), dusky-tailed canastero (Pseudasthenes humicola), and Chilean mockingbird (Mimus thenca). The ecoregion corresponds to the Central Chile Endemic Bird Area. [8]
Native mammals include the common degu (Octodon degus), Bridges's degu (Octodon bridgesii), pichi or dwarf armadillo (Zaedyus pichiy), and southern river otter (Lontra provocax). The guanaco (Lama guanacoe) has been extirpated from the ecoregion. Native mammal predators include the puma (Puma concolor), Andean mountain cat (Leopardus jacobita), culpeo or andean wolf (Pseudalopex culpaeus), and South American gray fox (Pseudalopex griseus). [7]
Endemic reptiles include several species of tree iguana, including the black-spotted tree iguana ( Liolaemus nigromaculatus ), braided tree iguana ( Liolaemus platei ), brown tree iguana ( Liolaemus fuscus ), Hellmich's tree iguana ( Liolaemus hellmichi ), Liolaemus nigromaculatus , Kuhlman's tree iguana ( Liolaemus zapallarensis ), Schroeder's tree iguana ( Liolaemus schroederi ), shining tree iguana ( Liolaemus nitidus ), Chilean tree iguana ( Liolaemus chiliensis ), Liolaemus atacamensis , Liolaemus pseudolemniscatus , Liolaemus reichei , and Liolaemus silvai . Other endemic reptiles include Alvaro's anole ( Pristidactylus alvaroi ), the spotted false monitor ( Callopistes maculatus ), Yanez's lava lizard ( Microlophus yanezi ), Pristidactylus valeriae , and Chilean marked gecko (Garthia gaudichaudii). [2]
Native amphibians include the Atacama toad ( Rhinella atacamensis ) in the northern portion of the ecoregion, and the banded wood frog ( Batrachyla taeniata ), Chile four-eyed frog ( Pleurodema thaul ), helmeted water toad ( Caudiverbera caudiverbera ), and Alsodes nodosus . [2]
The matorral ecoregion contains the majority of Chile's population and its largest cities. The Central valley is Chile's main agricultural region, and the region is also subject to extensive grazing, logging, and urbanization. Grasses and other herbaceous plants introduced from the Mediterranean Basin have covered extensive areas of the ecoregion, displacing native plants. Much of the ecoregion's original forest and woodland has been degraded into matorral or scrub, and much matorral degraded into espinal or sparse scrub. [2] Other threats include human-caused fires and overgrazing by introduced rabbits, hares, and goats. [7]
Of Chile's ecoregions, the matorral is the least protected by national parks and preserves. [2] Only 1.3% of the ecoregion is protected. Protected areas include: [9]
Sclerophyll is a type of vegetation that is adapted to long periods of dryness and heat. The plants feature hard leaves, short internodes and leaf orientation which is parallel or oblique to direct sunlight. The word comes from the Greek sklēros (hard) and phyllon (leaf). The term was coined by A.F.W. Schimper in 1898, originally as a synonym of xeromorph, but the two words were later differentiated.
The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa.
The Global 200 is the list of ecoregions identified by the World Wide Fund for Nature (WWF), the global conservation organization, as priorities for conservation. According to WWF, an ecoregion is defined as a "relatively large unit of land or water containing a characteristic set of natural communities that share a large majority of their species dynamics, and environmental conditions". For example, based on their levels of endemism, Madagascar gets multiple listings, ancient Lake Baikal gets one, and the North American Great Lakes get none.
The Valdivian temperate forests (NT0404) is an ecoregion on the west coast of southern South America, in Chile and Argentina. It is part of the Neotropical realm. The forests are named after the city of Valdivia. The Valdivian temperate rainforests are characterized by their dense understories of bamboos, ferns, and for being mostly dominated by evergreen angiosperm trees with some deciduous specimens, though conifer trees are also common.
The ecology of California can be understood by dividing the state into a number of ecoregions, which contain distinct ecological communities of plants and animals in a contiguous region. The ecoregions of California can be grouped into four major groups: desert ecoregions, Mediterranean ecoregions, forested mountains, and coastal forests.
The San Luis Obispo Botanical Garden is a botanical garden located in the rolling hills of El Chorro Regional Park, between San Luis Obispo and Morro Bay in San Luis Obispo County, within the Central Coast of California region. Its grounds, when completed, will be a 150-acre (61 ha) collection of gardens displaying the diverse plant life of the five Mediterranean climate zones of the world; the Mediterranean Basin, and regions of California, Chile, Australia, and South Africa.
Southwest Australia is a biogeographic region in Western Australia. It includes the Mediterranean-climate area of southwestern Australia, which is home to a diverse and distinctive flora and fauna.
Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominated by shrubs, often also including grasses, herbs, and geophytes. Shrubland may either occur naturally or be the result of human activity. It may be the mature vegetation type in a particular region and remain stable over time, or a transitional community that occurs temporarily as the result of a disturbance, such as fire. A stable state may be maintained by regular natural disturbance such as fire or browsing. Shrubland may be unsuitable for human habitation because of the danger of fire. The term was coined in 1903.
Matorral is a Spanish word, along with tomillares, for shrubland, thicket or bushes. It is used in naming and describing a Mediterranean climate ecosystem in Southern Europe.
In biogeography, the Mediterranean Basin, also known as the Mediterranean Region or sometimes Mediterranea, is the region of lands around the Mediterranean Sea that have mostly a Mediterranean climate, with mild to cool, rainy winters and warm to hot, dry summers, which supports characteristic Mediterranean forests, woodlands, and scrub vegetation. It was a very important part of Mediterranean civilizations.
Garrigue or garigue, also known as phrygana, is a type of low scrubland ecoregion and plant community in the Mediterranean forests, woodlands, and scrub biome.
La Campana National Park is in the Cordillera de la Costa, Quillota Province, in the Valparaíso Region of Chile. La Campana National Park and the Vizcachas Mountains lie northwest of Santiago. This national park covers approximately 80 square kilometres (31 sq mi) and is home to one of the last palm forests of Jubaea chilensis, which prehistorically had a much wider distribution than at present. Another attraction is the Cerro La Campana, which lends its name to the park. In 1834 Charles Darwin climbed this mountain, during the second voyage of HMS Beagle.
The North Saharan steppe and woodlands is a desert ecoregion, in the deserts and xeric shrublands biome, that forms the northern edge of the Sahara. It extends east and west across Northern Africa, south of the Mediterranean dry woodlands and steppe ecoregion of the Maghreb and Cyrenaica, which is part of the Mediterranean forests, woodlands, and scrub biome. Winter rains sustain shrublands and dry woodlands that form an ecotone between the Mediterranean climate regions to the north and the hyper-arid Sahara Desert ecoregion to the south.
Mediterranean forests, woodlands and scrub is a biome defined by the World Wide Fund for Nature. The biome is generally characterized by dry summers and rainy winters, although in some areas rainfall may be uniform. Summers are typically hot in low-lying inland locations but can be cool near colder seas. Winters are typically mild to cool in low-lying locations but can be cold in inland and higher locations. All these ecoregions are highly distinctive, collectively harboring 10% of the Earth's plant species.
Liolaemus platei, known by the common name braided tree iguana, is a species of lizard in the family Liolaemidae. The species is endemic to Chile.
The Somali Acacia–Commiphora bushlands and thickets is a semi-arid tropical grasslands, savannas, and shrublands ecoregion in the Horn of Africa. It is home to diverse communities of plants and animals, including several endemic species.
The Iberian sclerophyllous and semi-deciduous forests is a Mediterranean forests, woodlands, and scrub ecoregion in southwestern Europe. It occupies the interior valleys and plateaus of the Iberian Peninsula. The ecoregion lies mostly in Spain, and includes some portions of eastern Portugal.
The Northeastern Spain and Southern France Mediterranean forests is a Mediterranean forests, woodlands, and scrub ecoregion in southwestern Europe. It occupies the Mediterranean coastal region of northeastern Spain, Southern France, the Balearic Islands and a small part of Italy.
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