Corcovado National Park
Encyclopedia
Corcovado National Park is a National Park
National park
A national park is a reserve of natural, semi-natural, or developed land that a sovereign state declares or owns. Although individual nations designate their own national parks differently A national park is a reserve of natural, semi-natural, or developed land that a sovereign state declares or...

 on the Osa Peninsula
Osa Peninsula
The Osa Peninsula is a peninsula located in southwestern Costa Rica, in the Puntarenas Province, on the Pacific Ocean, at . The peninsula was formed geologically by a faulting system that extends north into California....

 in the South West of Costa Rica
Costa Rica
Costa Rica , officially the Republic of Costa Rica is a multilingual, multiethnic and multicultural country in Central America, bordered by Nicaragua to the north, Panama to the southeast, the Pacific Ocean to the west and the Caribbean Sea to the east....

 (9° North, 83° West), which is part of the Osa Conservation Area
Osa Conservation Area
Osa Conservation Area is an administrative area which is managed by SINAC for the purposes of conservation in Costa Rica, on the southern Pacific coast region...

. It was established on 24 October 1975, and encompasses an area of 425 km² (263 mi²). It is widely considered the crown jewel in the extensive system of national parks and biological reserves spread across the country. The ecological variety is quite stunning. National Geographic has called it "the most biologically intense place on Earth". Not only is the park very popular with tropical ecologists
Ecology
Ecology is the scientific study of the relations that living organisms have with respect to each other and their natural environment. Variables of interest to ecologists include the composition, distribution, amount , number, and changing states of organisms within and among ecosystems...

, a visitor can expect to see an abundance of wildlife. One should come well prepared though (see below).

Flora and fauna

The park conserves the largest primary forest on the American Pacific coastline and one of the few remaining sizeable areas of lowland tropical rainforest
Tropical rainforest
A tropical rainforest is an ecosystem type that occurs roughly within the latitudes 28 degrees north or south of the equator . This ecosystem experiences high average temperatures and a significant amount of rainfall...

s in the world. Logging usually takes place in lowland areas because those areas are more accessible and contain the largest and most economically valuable trees. But those habitats are also usually the richest in biodiversity
Biodiversity
Biodiversity is the degree of variation of life forms within a given ecosystem, biome, or an entire planet. Biodiversity is a measure of the health of ecosystems. Biodiversity is in part a function of climate. In terrestrial habitats, tropical regions are typically rich whereas polar regions...

. So even though still approximately half the tropical rainforests on Earth remain, what is left of the originally rich lowland tropical rainforests is usually too small to support the original natural biodiversity. Larger animals, especially, need a large habitat free of human activity. Unfortunately this means that even tourism, the economic incentive for Costa Rica and other developing nations to preserve and protect parks such as Corcovado, actually threatens the long-term biodiversity of the park.
Corcovado is home to a sizable population of the endangered Baird's Tapir
Baird's Tapir
Baird’s Tapir is a species of tapir that is native to Central America and northern South America. It is one of three Latin American species of tapir.-Names:...

 and even a small population of the very rare Harpy Eagle. The park's rivers and lagoons are home to large populations of both the American crocodile
American Crocodile
The American crocodile is a species of crocodilian found in the Neotropics. It is the most widespread of the four extant species of crocodiles from the Americas. Populations occur from the Atlantic and Pacific coasts of southern Mexico to South America as far as Peru and Venezuela. It also lives...

 and Spectacled Caiman
Spectacled Caiman
The spectacled caiman , also known as the white caiman or common caiman, is a crocodilian reptile found in much of Central and South America. It lives in a range of lowland wetland and riverine habitat types and can tolerate salt water as well as fresh; due in part to this adaptability it is the...

, along with Bull sharks. Corcovado is also one of the final strongholds of the Jaguar
Jaguar
The jaguar is a big cat, a feline in the Panthera genus, and is the only Panthera species found in the Americas. The jaguar is the third-largest feline after the tiger and the lion, and the largest in the Western Hemisphere. The jaguar's present range extends from Southern United States and Mexico...

 within Central America and several other felines
Félines
Félines may refer to the following places in France:* Félines, Ardèche, a commune in the department of Ardèche* Félines, Haute-Loire, a commune in the department of Hérault* Félines-Minervois, a commune in the department of Hérault...

 are also present, including Ocelot
Ocelot
The ocelot , pronounced /ˈɒsəˌlɒt/, also known as the dwarf leopard or McKenney's wildcat is a wild cat distributed over South and Central America and Mexico, but has been reported as far north as Texas and in Trinidad, in the Caribbean...

, Margay
Margay
The Margay is a spotted cat native to Middle and South America. Named for Prince Maximilian of Wied-Neuwied, it is a solitary and nocturnal animal that prefers remote sections of the rainforest. Although it was once believed to be vulnerable to extinction, the IUCN now lists it as "Near Threatened"...

, Jaguarundi
Jaguarundi
The jaguarundi is a small-sized wild cat native to Central and South America. In 2002, the IUCN classified the jaguarundi as Least Concern as it is likely that no conservation units, with the probable exception of the mega-reserves of the Amazon basin could sustain long-term viable populations. It...

, and Puma. All four Costa Rican monkey species can be seen within the park, including the endangered Central American Squirrel Monkey
Central American Squirrel Monkey
The Central American squirrel monkey is a squirrel monkey species from the Pacific coast of Costa Rica and Panama. It is restricted to the northwestern tip of Panama near the border with Costa Rica, and the central and southern Pacific coast of Costa Rica, primarily in Manuel Antonio and Corcovado...

, White-faced Capuchin, Mantled Howler
Mantled Howler
The mantled howler , or golden-mantled howling monkey, is a species of howler monkey, a type of New World monkey, from Central and South America. It is one of the monkey species most often seen and heard in the wild in Central America...

, and Geoffroy's Spider Monkey
Geoffroy's Spider Monkey
Geoffroy's spider monkey, Ateles geoffroyi, also known as black-handed spider monkey, is a species of spider monkey, a type of New World monkey, from Central America, parts of Mexico and possibly a small portion of Colombia. There are at least five subspecies. Some primatologists classify the...

. Other mammals present include Two-toed
Hoffmann's Two-toed Sloth
Hoffmann's two-toed sloth is a species of sloth from Central and South America. It is a solitary nocturnal and arboreal animal, found in mature and secondary rainforests and deciduous forests...

 and Three-toed
Brown-throated Three-toed Sloth
The brown-throated sloth is a species of three-toed sloth. It is the most common of the four species of three-toed sloth, and is found in the forests of South and Central America.-Description:...

 Sloth
Sloth
Sloths are the six species of medium-sized mammals belonging to the families Megalonychidae and Bradypodidae , part of the order Pilosa and therefore related to armadillos and anteaters, which sport a similar set of specialized claws.They are arboreal residents of the jungles of Central and South...

, Collared Peccary
Collared Peccary
The collared peccary is a species of mammal in the family Tayassuidae that is found in North, Central, and South America. They are commonly referred to as javelina, saíno or báquiro, although these terms are also used to describe other species in the family...

, Northern Tamandua
Northern Tamandua
The northern tamandua is a species of tamandua, a small anteater in the family Myrmecophagidae. They live in tropical and subtropical forests from southern Mexico, through Central America, and to the edge of the northern Andes....

 and Silky Anteater
Silky Anteater
The Silky Anteater or Pygmy Anteater is a species of anteater from Central and South America, ranging from extreme southern Mexico south to Brazil Delta Amacuro Venezuela and possibly Paraguay...

. Poison dart frogs and several species of snake (including the venomous Fer-de-Lance
Fer-de-Lance
Fer-de-Lance is French for spearhead , and may refer to:Snakes:*Bothrops lanceolatus, the Martinique lancehead *B. caribbaeus, the Saint Lucia lancehead...

 and Bushmaster
Bushmaster
-Snakes:* Any member of Lachesis , a group of large, venomous pitvipers found in Central and South America.-Military:* The Bushmaster Firearms International, an American firearms manufacturer....

) are also common within the park.

The abundance in wildlife can in part be explained by the variety of vegetation types, at least 13, including montane forest (more than half the park), cloud forest
Cloud forest
A cloud forest, also called a fog forest, is a generally tropical or subtropical evergreen montane moist forest characterized by a persistent, frequent or seasonal low-level cloud cover, usually at the canopy level. Cloud forests often exhibit an abundance of mosses covering the ground and...

, jolillo forest (palm swamp), prairie forest, alluvial plains forest, swamp forest, freshwater herbaceous swamp and mangrove
Mangrove
Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics – mainly between latitudes N and S...

, together holding over 500 tree species, including purple heart (tree), poponjoche, nargusta, banak (tree), cow tree, espave and crabwood (tree). Another reason for the diversity (as with all of Costa Rica) is that it lies on a north-south corridor for flora and fauna; part of the "land bridge" and wildlife corridor that links the large continents of North America and South America.

Visiting

As when visiting any sensitive natural area, please be sure to clean all of your hiking and/or camping gear (in particular shoe/boot soles and tents) prior to visiting to decrease the chance introducing non-native seeds.

Corcovado National Park is open to the public and can be visited on day trips and for overnight visits. As of January 2009, admission is $10 per person per day for non-Costa Rican residents. Reservations for overnight visits in the park can be made in Puerto Jiménez
Puerto Jimenez
Puerto Jiménez is the largest town on the Osa Peninsula, Puntarenas Province, Costa Rica with a population of 1,780. Located on the Golfo Dulce near Corcovado National Park, it is served by the Puerto Jiménez Airport. It is most famous for its gold mining and logging in the 1960s.-External...

 on the east coast of the peninsula. One may camp or stay indoors at one of several ranger stations equipped with bunks. If one wants basic meals served, reservations should be made about a week in advance. Take note that researchers get preference over other visitors (though there is usually enough room for self-catering campers).

One can make day visits into the park from several lodging options on both the north and south entrances to the park, as well as through organised excursions that fly into the park. One can get to the Corcovado National Park via Puerto Jimenez or Drake Bay. These two towns serve as the main entry points to the park. There are two tracks, one coastal and one inland, and four ranger stations in the park where one can stay overnight; three at the park entrances and one at the intersection of the two tracks. One track runs Northwest to Southeast along the coast to Estacion La Leona, with the Estación Sirena roughly in the middle. The second track runs inland from Estacion Sirena to Estación Los Patos at the Eastern end of the park. One can fly into the park (via chartered aircraft) to Estación Sirena, from where one can follow relatively short loop-trails. Carate (near Estacion La Leona), also has an airstrip and road access from Puerto Jimenez. To walk through the park one needs a reasonable fitness, at least two or three days, good planning and caution. During the wet months (July to November) parts of the park may be closed.

On the coastal track there are several rivers need to be forded. These rivers can all be very dangerous if forded at high tide or if one is inexperienced in this kind of an environment. Rio Sirena is commonly regarded as the most dangerous of crossings, primarily because it flows directly into the massive Laguna Corcovado in the isolated heart of the park. Bull shark
Bull shark
The bull shark, Carcharhinus leucas, also known as Zambezi shark or unofficially known as Zambi in Africa and Nicaragua shark in Nicaragua, is a shark common worldwide in warm, shallow waters along coasts and in rivers...

s are so common within the river that during high tide they are almost always visible and are probably the only animal within Corcovado (besides the rare 4-meter-plus crocodile) that represents a very serious danger to humans. It is said that, since the Rio Sirena flows into such a large and rich food source as Laguna Corcovado, that the crocodiles living within this river are much larger (some over 5 meters) than those found in the other rivers in Corcovado. However, at low tide this crossing is essentially no less hazardous as any of the other river crossings. The Rio Claro, which is approximately 40 minutes south of Rio Sirena, is said to be safer, although both appear to the naked eye as very similar in size. American crocodile
American Crocodile
The American crocodile is a species of crocodilian found in the Neotropics. It is the most widespread of the four extant species of crocodiles from the Americas. Populations occur from the Atlantic and Pacific coasts of southern Mexico to South America as far as Peru and Venezuela. It also lives...

s will also most certainly be seen basking and floating near the mouth of the Rio Claro. It is generally accepted that Bull Shark
Bull shark
The bull shark, Carcharhinus leucas, also known as Zambezi shark or unofficially known as Zambi in Africa and Nicaragua shark in Nicaragua, is a shark common worldwide in warm, shallow waters along coasts and in rivers...

s are not present within Rio Claro, although this is not confirmed nor is it entirely accepted by some of the local guides. Spectacled Caiman
Spectacled Caiman
The spectacled caiman , also known as the white caiman or common caiman, is a crocodilian reptile found in much of Central and South America. It lives in a range of lowland wetland and riverine habitat types and can tolerate salt water as well as fresh; due in part to this adaptability it is the...

 are also present within all rivers and lagoons, but are very small, timid and completely harmless to humans. Despite the presence of these predators, by far the greatest risk you will face while crossing any river is the strong current. Upstream Rio Claro is a popular night swimming spot amongst guides and their groups, therefore it is doubtful that attacks by crocodiles or sharks in this river are a concern. Bull shark
Bull shark
The bull shark, Carcharhinus leucas, also known as Zambezi shark or unofficially known as Zambi in Africa and Nicaragua shark in Nicaragua, is a shark common worldwide in warm, shallow waters along coasts and in rivers...

s, although of relatively modest size, are well known for their extremely aggressive and unpredictable behavior, therefore crossing the Rio Sirena at high tide is simply not an option and nearly suicidal. The elusive Jaguar
Jaguar
The jaguar is a big cat, a feline in the Panthera genus, and is the only Panthera species found in the Americas. The jaguar is the third-largest feline after the tiger and the lion, and the largest in the Western Hemisphere. The jaguar's present range extends from Southern United States and Mexico...

 is a large, beautiful and potentially intimidating feline but is generally regarded as shy and harmless. They are capable of taking down prey as large as Tapir
Tapir
A Tapir is a large browsing mammal, similar in shape to a pig, with a short, prehensile snout. Tapirs inhabit jungle and forest regions of South America, Central America, and Southeast Asia. There are four species of Tapirs: the Brazilian Tapir, the Malayan Tapir, Baird's Tapir and the Mountain...

 but appear to be reclusive and uninterested in human activity.

Most animal sightings can be expected on the coastal track, with scarlet macaws
Scarlet Macaw
The Scarlet Macaw is a large, colorful macaw. It is native to humid evergreen forests in the American tropics. Range extends from extreme south-eastern Mexico to Amazonian Peru, Bolivia and Brazil in lowlands up to up to...

 (the largest population in the country) flying overhead, hermit crab
Hermit crab
Hermit crabs are decapod crustaceans of the superfamily Paguroidea. Most of the 1100 species possess an asymmetrical abdomen which is concealed in an empty gastropod shell that is carried around by the hermit crab.-Description:...

s on the beach, pelican
Pelican
A pelican, derived from the Greek word πελεκυς pelekys is a large water bird with a large throat pouch, belonging to the bird family Pelecanidae....

s fishing in the sea and, on the sections that go slightly inland, spider monkey
Spider monkey
Spider monkeys of the genus Ateles are New World monkeys in the subfamily Atelinae, family Atelidae. Like other atelines, they are found in tropical forests of Central and South America, from southern Mexico to Brazil...

s (take care not to get urinated on when they are in a tree overhead), tamandua
Tamandua
Tamandua is a genus of anteaters. It has two members: the Southern Tamandua and the Northern Tamandua . They live in forests and grasslands, are semi-arboreal, and possess partially prehensile tails. They mainly eat ants and termites, but they occasionally eat bees, beetles, and insect larvae...

 anteaters, pumas, white faced capuchin monkeys, lineated woodpecker
Lineated Woodpecker
The Lineated Woodpecker is a very large woodpecker which is a resident breeding bird from Mexico south to northern Argentina and on Trinidad.-Description:The Lineated Woodpecker is long...

s and coati
Coati
Coatis, genera Nasua and Nasuella, also known as the Brazilian aardvark, Mexican tejón, hog-nosed coon, pizotes, crackoons and snookum bears, are members of the raccoon family . They are diurnal mammals native to South America, Central America, and south-western North America...

s (to name just a few). With luck one might even spot a tapir, even though they're nocturnal. Corcovado is also a good place to spot the red-eyed tree frog, as well as the glass frog with its transparent skin, and the enamel-bright poison-arrow frogs. From Estación Sirena one can follow many short tracks, on which one can also take short night-strolls into the forest with a good chance of running into a tapir. They're impressive to see but harmless if left in peace. Jaguars are present and some individuals frequent the beach near Madrigal at night. You are very likely to see their tracks, sometimes very fresh and frequent, but very unlikely to see the actual cat. The most common animal in the park is by far the White-nosed Coati, which one can expect to encounter dozens of times on the beach hike between La Leona and Sirena, digging for and feeding on the abundant Moon Crab
Halloween crab
Gecarcinus quadratus, known as the red land crab, whitespot crab, Halloween crab, moon crab, mouthless crab or harlequin land crab, is a colourful land crab from the family Gecarcinidae.-Distribution:...

s.

The inland track to Estación Los Patos goes through secondary growth
Secondary growth
In many vascular plants, secondary growth is the result of the activity of the two lateral meristems, the cork cambium and vascular cambium. Arising from lateral meristems, secondary growth increases the girth of the plant root or stem, rather than its length. As long as the lateral meristems...

 for much of the way, but it is still a beautiful walk with a little more variation and it's easier walking with no sand and no sizeable river crossings.

Other animals in the park include Central American Squirrel Monkey
Central American Squirrel Monkey
The Central American squirrel monkey is a squirrel monkey species from the Pacific coast of Costa Rica and Panama. It is restricted to the northwestern tip of Panama near the border with Costa Rica, and the central and southern Pacific coast of Costa Rica, primarily in Manuel Antonio and Corcovado...

s, mantled
Mantled Howler
The mantled howler , or golden-mantled howling monkey, is a species of howler monkey, a type of New World monkey, from Central and South America. It is one of the monkey species most often seen and heard in the wild in Central America...

 howler monkey
Howler monkey
Howler monkeys are among the largest of the New World monkeys. Fifteen species are currently recognised. Previously classified in the family Cebidae, they are now placed in the family Atelidae. These monkeys are native to South and Central American forests...

s, both two-toed
Hoffmann's Two-toed Sloth
Hoffmann's two-toed sloth is a species of sloth from Central and South America. It is a solitary nocturnal and arboreal animal, found in mature and secondary rainforests and deciduous forests...

 and three-toed
Three-toed sloth
The three-toed sloths are tree-living mammals from South and Central America. They are the only members of the genus Bradypus and the family Bradypodidae. There are four living species of three-toed sloths...

 sloth
Sloth
Sloths are the six species of medium-sized mammals belonging to the families Megalonychidae and Bradypodidae , part of the order Pilosa and therefore related to armadillos and anteaters, which sport a similar set of specialized claws.They are arboreal residents of the jungles of Central and South...

s, agouti
Agouti
Agouti refers to a number of species of rodents as well as a number of genes affecting coat coloration in several different animals. Agouti fur contains a pattern of pigmentation in which individual hairs have several bands of light and dark pigment with black tips.* When referring to a rodent,...

s, giant anteater
Giant Anteater
The Giant Anteater, Myrmecophaga tridactyla, is the largest species of anteater. It is the only species in the genus Myrmecophaga. It is found in Central and South America from Honduras to northern Argentina...

s, Great Curassow
Great Curassow
The Great Curassow is a large, pheasant-like bird from the Neotropics. At in length and in weight, this is a very large cracid. No other cracid match its maximum weight, but its length is matched by a few other cracids....

s, black hawk
Common Black Hawk
The Common Black Hawk is a bird of prey in the family Accipitridae, which also includes the eagles, hawks and Old World vultures. It formerly included the Cuban Black Hawk as a subspecies...

s, Spectacled Owl
Spectacled Owl
The Spectacled Owl, Pulsatrix perspicillata, is a large tropical owl. It is a resident breeder from southern Mexico and Trinidad, through Central America, south to southern Brazil, Paraguay and northwestern Argentina...

s, hummingbird
Hummingbird
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5–13 cm range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings...

s, 220 species of butterflies
Butterfly
A butterfly is a mainly day-flying insect of the order Lepidoptera, which includes the butterflies and moths. Like other holometabolous insects, the butterfly's life cycle consists of four parts: egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured...

, golden orb spider
Golden silk orb-weaver
The golden silk orb-weavers are a genus of araneomorph spiders noted for the impressive webs they weave. Nephila consists of numerous individual species found around the world. They are also commonly called golden orb-weavers, giant wood spiders, or banana spiders...

s (who build huge webs), otter
Otter
The Otters are twelve species of semi-aquatic mammals which feed on fish and shellfish, and also other invertebrates, amphibians, birds and small mammals....

s and raccoon
Raccoon
Procyon is a genus of nocturnal mammals, comprising three species commonly known as raccoons, in the family Procyonidae. The most familiar species, the common raccoon , is often known simply as "the" raccoon, as the two other raccoon species in the genus are native only to the tropics and are...

s. Four species of sea turtle
Sea turtle
Sea turtles are marine reptiles that inhabit all of the world's oceans except the Arctic.-Distribution:...

 (green
Green Sea Turtle
The Green sea turtle or green turtle is a large sea turtle of the family Cheloniidae. It is the only species in the genus Chelonia. Its range extends throughout tropical and subtropical seas around the world, with two distinct populations in the Atlantic and Pacific Oceans...

, Pacific Ridley, Hawksbill
Hawksbill turtle
The hawksbill sea turtle is a critically endangered sea turtle belonging to the family Cheloniidae. It is the only extant species in its genus. The species has a worldwide distribution, with Atlantic and Pacific subspecies. E. imbricata imbricata is the Atlantic subspecies, while E...

, and Leatherback
Leatherback Sea Turtle
The leatherback sea turtle is the largest of all living sea turtles and the fourth largest modern reptile behind three crocodilians. It is the only living species in the genus Dermochelys. It can easily be differentiated from other modern sea turtles by its lack of a bony shell. Instead, its...

) nest on the beaches.

Creation and threats

Because of the remoteness of the peninsula, logging started only in the 1960s. By 1975 there were plans for a major international logging operation. Researchers petitioned President Daniel Oduber to protect the area, which he did by making it a National Park
National park
A national park is a reserve of natural, semi-natural, or developed land that a sovereign state declares or owns. Although individual nations designate their own national parks differently A national park is a reserve of natural, semi-natural, or developed land that a sovereign state declares or...

. For this he received the Albert Schweitzer Award from the Animal Welfare Institute
Animal Welfare Institute
The Animal Welfare Institute is a non-profit charitable organization founded in 1951 with the goal of reducing pain and fear inflicted on animals by humans...

. The already present goldminers were allowed to stay. By 1986 their number had increased to about 1,000 (not counting their families), who also hunted the wildlife. It was decided to evict them. There is, however, still some illegal mining going on (using more destructive modern mining methods). Illegal logging is not frequent, but the trees that are removed are scarce and essential to the ecosystem.

Increased tourism has led to an increased presence of humans in the park, which may threaten the long-term survival of the park's larger mammals. To help combat the threat of over-exposure, many agencies and other groups (including Conservation International
Conservation International
Conservation International is a nonprofit organization headquartered in Arlington, Virginia, which seeks to ensure the health of humanity by protecting Earth's ecosystems and biodiversity. CI’s work focuses on six key initiatives that affect human well-being: climate, food security, freshwater...

, The Nature Conservancy, WWF
World Wide Fund for Nature
The World Wide Fund for Nature is an international non-governmental organization working on issues regarding the conservation, research and restoration of the environment, formerly named the World Wildlife Fund, which remains its official name in Canada and the United States...

–U.S., rain-forest conservation groups in several countries, Catholic Relief Service, Organization of American States
Organization of American States
The Organization of American States is a regional international organization, headquartered in Washington, D.C., United States...

, and the Costa Rican, Danish
Denmark
Denmark is a Scandinavian country in Northern Europe. The countries of Denmark and Greenland, as well as the Faroe Islands, constitute the Kingdom of Denmark . It is the southernmost of the Nordic countries, southwest of Sweden and south of Norway, and bordered to the south by Germany. Denmark...

, Dutch, Swedish
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

 and U.S. governments) have come together to provide aid to the conservation cause.

External links

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