, the second largest island of Seychelles An island nation, Seychelles is located in the
Somali Sea segment of the Indian Ocean, northeast of
Madagascar and about east of
Kenya. The Constitution of Seychelles lists 155 named islands, and a further 7 reclaimed islands have been created subsequent to the publication of the Constitution. The majority of the islands are uninhabited, with many dedicated as nature reserves. Seychelles' largest island,
Mahé, is located from
Mogadishu (
Somalia's capital). Seychelles sits atop a large submerged
granite block known as the
Seychelles microcontinent, which was sandwiched between
Madagascar and
India before the breakup of
Gondwanaland. After Madagascar separated from India during the
Late Cretaceous, interaction with the
Réunion hotspot caused the diverging oceanic rift to jump several times, breaking off a piece that is currently on the
Somali plate and includes Seychelles,
Mauritius, and Réunion, as well as another fragment on the present
Indian plate that includes
Lakshadweep, the
Chagos Archipelago, and the
Maldives. A group of 44 islands (42 granitic and 2 coralline) occupy the shallow waters of the Seychelles Bank and are collectively referred to as the inner islands. They have a total area of , accounting for 54% of the total land area of the Seychelles and 98% of the entire population. The islands have been divided into groups. There are 42 granitic islands known as the
Granitic Seychelles. These are in descending order of size:
Mahé,
Praslin,
Silhouette,
La Digue,
Curieuse,
Félicité,
Frégate,
Ste. Anne,
North,
Cerf,
Marianne,
Grande Sœur,
Thérèse,
Aride,
Conception,
Petite Sœur,
Cousin,
Cousine,
Long, Récif,
Round (Praslin),
Anonyme,
Mamelles,
Moyenne,
Ile aux Vaches Marines,
L'Islette,
Beacon (Ile Sèche),
Cachée,
Cocos,
Round (Mahé), l'Ilot Frégate, Booby, Chauve Souris (Mahé), Chauve Souris (Praslin), Ile La Fouche,
Hodoul, L'Ilot, Rat, Souris, St. Pierre (Praslin), Zavé, Harrison Rocks (Grand Rocher). There are two coral sand
cays north of the granitics on the edge of the Seychelles Bank:
Denis and
Bird. There are two
coral islands south of the Granitic:
Coëtivy and
Platte. on the island of
Praslin There are 29 coral islands in the
Amirantes group, west of the granitic:
Desroches, Poivre Atoll (comprising three islands—Poivre, Florentin and South Island), Alphonse, D'Arros, St. Joseph Atoll (comprising 14 islands—St. Joseph, Île aux Fouquets, Resource, Petit Carcassaye, Grand Carcassaye, Benjamin, Bancs Ferrari, Chiens, Pélicans, Vars, Île Paul, Banc de Sable, Banc aux Cocos and Île aux Poules), Marie Louise, Desnœufs, African Banks (comprising two islands—African Banks and South Island), Rémire, St. François, Boudeuse, Étoile, Bijoutier. There are 13 coral islands in the
Farquhar Group, south-southwest of the Amirantes:
Farquhar Atoll (comprising 10 islands—Bancs de Sable, Déposés, Île aux Goëlettes, Lapins, Île du Milieu, North Manaha, South Manaha, Middle Manaha, North Island and South Island), Providence Atoll (comprising two islands—Providence and Bancs Providence) and St Pierre. There are 67
raised coral islands in the
Aldabra Group, west of the Farquhar Group:
Aldabra Atoll (comprising 46 islands—Grande Terre, Picard, Polymnie, Malabar, Île Michel, Île Esprit, Île aux Moustiques, Ilot Parc, Ilot Émile, Ilot Yangue, Ilot Magnan, Île Lanier, Champignon des Os, Euphrate, Grand Mentor, Grand Ilot, Gros Ilot Gionnet, Gros Ilot Sésame, Héron Rock, Hide Island, Île aux Aigrettes, Île aux Cèdres, Îles Chalands, Île Fangame, Île Héron, Île Michel, Île Squacco, Île Sylvestre, Île Verte, Ilot Déder, Ilot du Sud, Ilot du Milieu, Ilot du Nord, Ilot Dubois, Ilot Macoa, Ilot Marquoix, Ilots Niçois, Ilot Salade, Middle Row Island, Noddy Rock, North Row Island, Petit Mentor, Petit Mentor Endans, Petits Ilots, Pink Rock and Table Ronde),
Assumption Island, Astove and
Cosmoledo Atoll (comprising 19 islands—Menai, Île du Nord (West North), Île Nord-Est (East North), Île du Trou, Goélettes, Grand Polyte, Petit Polyte, Grand Île (Wizard), Pagode, Île du Sud-Ouest (South), Île aux Moustiques, Île Baleine, Île aux Chauve-Souris, Île aux Macaques, Île aux Rats, Île du Nord-Ouest, Île Observation, Île Sud-Est and Ilot la Croix). In addition to these 155 islands, as per the Constitution of Seychelles, there are 7 reclaimed islands: Ile Perseverance, Ile Aurore,
Romainville,
Eden Island, Eve, Ile du Port and Ile Soleil. South Island, African Banks has been eroded by the sea. At St Joseph Atoll, Banc de Sable and Pelican Island have also eroded, while Grand Carcassaye and Petit Carcassaye have merged to form one island. There are also several unnamed islands at Aldabra, St Joseph Atoll and Cosmoledo. Pti Astove, though named, failed to make it into the Constitution for unknown reasons. Bancs Providence is not a single island, but a dynamic group of islands, comprising four large and about six very small islets in 2016.
Climate The climate is very humid, as the islands are small, and is classified by the
Köppen-Geiger system as a
tropical rain forest (
Af). The temperature varies little throughout the year. Temperatures on Mahé vary from , and rainfall ranges from annually at
Victoria to on the mountain slopes.
Precipitation levels are somewhat less on the other islands. During the coolest months, July and August, the average low is about . The southeast trade winds blow regularly from May to November, and this is the most pleasant time of the year. The hot months are from December to April, with higher humidity (80%). March and April are the hottest months, but the temperature seldom exceeds . Most of the islands lie outside the cyclone belt, so high winds are rare. Like many fragile island ecosystems, Seychelles saw the
loss of biodiversity when humans first settled in the area, including the disappearance of most of the
giant tortoises from the granitic islands, the felling of coastal and mid-level forests, and the extinction of species such as the
chestnut flanked white eye, the
Seychelles parakeet, and the
saltwater crocodile. However, extinctions were far fewer than on islands such as
Mauritius or
Hawaii, partly due to a shorter period of human occupation. Seychelles today is known for success stories in protecting its flora and fauna. The rare
Seychelles black parrot, the national bird of the country, is now protected. The
freshwater crab genus
Seychellum is endemic to the granitic Seychelles, and a further 26 species of crabs and five species of
hermit crabs live on the islands. From the year 1500 until the mid-1800s (approximately), the then-previously unknown
Aldabra giant tortoise was killed for food by pirates and sailors, driving their numbers to near-extinction levels. Today, a healthy yet fragile population of 150,000 tortoises live solely on the atoll of Aldabra, declared a
UNESCO World Heritage Site. Additionally, these ancient reptiles can further be found in numerous zoos, botanical gardens, and private collections internationally. Their protection from poaching and smuggling is overseen by
CITES, whilst
captive breeding has greatly reduced the negative impact on the remaining wild populations. The granitic islands of Seychelles supports three extant species of
Seychelles giant tortoise. Seychelles hosts some of the largest
seabird colonies in the world, notably on the outer islands of Aldabra and Cosmoledo. In
granitic Seychelles the largest colonies are on
Aride Island including the world's largest numbers of two species. The
sooty tern also breeds on the islands. Other common birds include
cattle egret (
Bubulcus ibis) and the
fairy tern (
Gygis alba). More than 1,000 species of fish have been recorded. The granitic islands of Seychelles are home to roughly 268
flowering plant species, of which 70 (28%) are endemic. Particularly well known is the
coco de mer, a species of palm that grows only on the islands of
Praslin and neighbouring
Curieuse. Sometimes nicknamed the "love nut" (the shape of its "double" coconut resembles buttocks), the coco-de-mer produces the world's heaviest seed. The
jellyfish tree is to be found in only a few locations on Mahé. This strange and ancient plant, in a genus of its own,
Medusagyne seems to reproduce only in cultivation and not in the wild. Other unique plant species include Wright's gardenia (
Rothmannia annae), found only on
Aride Island’s Special Reserve. There are 6 potentially endemic species of orchid living on the islands. Seychelles is home to two terrestrial ecoregions:
Granitic Seychelles forests and
Aldabra Island xeric scrub. The country had a 2019
Forest Landscape Integrity Index mean score of 10/10, ranking it first globally out of 172 countries.
Environmental issues Since the use of
spearguns and dynamite for fishing was banned through efforts of local conservationists in the 1960s, the wildlife is unafraid of
snorkelers and
divers.
Coral bleaching in 1998 has damaged most reefs, but some reefs show healthy recovery (such as
Silhouette Island). Despite huge disparities across nations, Seychelles claims to have achieved nearly all of its
Millennium Development Goals. 17 MDGS and 169 targets have been achieved. Environmental protection is becoming a cultural value. Their government's
Seychelles Climate Guide describes the nation's climate as rainy, with a dry season with an ocean economy in the ocean regions. The Southeast Trades is on the decline but still fairly strong. Reportedly, weather patterns there are becoming less predictable. == Demographics ==