Potamon potamios | |
---|---|
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Malacostraca |
Order: | Decapoda |
Suborder: | Pleocyemata |
Infraorder: | Brachyura |
Family: | Potamidae |
Genus: | Potamon |
Species: | P. potamios |
Binomial name | |
Potamon potamios (Olivier, 1804) | |
Potamon potamios, the Levantine freshwater crab, is a semi-terrestrial crab occurring around the eastern Mediterranean, including many Mediterranean islands, [1] extending as far south and west as the Sinai Peninsula. [2]
Levantine freshwater crabs have an average leg span of 10 to 15 centimeters (4 to 6 inches) and the males are typically larger than the females. Their carapace is slightly arched, smooth, and concave; and has a size 5 to 7 cm (2 to 3 in). Their two claws are large and unequal in size, and their first gonopod is conical or slender. [3]
The Levantine freshwater crab can be found in Syria, Lebadon, Israel and Palestine, Cyprus, Jordan, southern Turkey, as well as the Sinai peninsula of Egypt and some islands in Greece; such as Crete, Karpathos, Naxos and more. It also occurs in some areas in Iraq near its border with Syria and in Saudi Arabia near its border with Jordan. [1] Its range lies within many ecoregions, like the Eastern Mediterranean conifer-broadleaf forests, the Aegean and Western Turkey sclerophyllous and mixed forests and the Cyprus Mediterranean forests. [4] This crab's habitat includes various environments, though it is usually found in streams, rivers and lakes. [1] It prefers areas with muddy substrates and rocks so it can dig borrows and hide. [3]
The Levantine freshwater crab is a semi-terrestrial species that is very active both on land and in the water. They are not social and they exhibit aggressive and territorial behavior, especially during breeding season. [3] In this species, medium-sized individuals are nocturnal, whereas the larger ones are diurnal. [1] During the night, some males spread over the surrounding terrestrial habitats; straying up to 40 metres (130 ft) away from the water. Levantine freshwater crabs are also known for digging burrows in muddy surfaces. [3]
Levantine freshwater crabs are omnivorous and they actively prey on small invertebrates and sometimes frogs and fish, while they also scrap surfaces covered with algae and eat dead leaves and plants. Cannibalism is also present in this species in individuals that have a noticeable size difference. [3]
The Levant is a term used to define the historical and geographical subregion that borders the Eastern Mediterranean sea to the west and core West Asia, or by the political term, Middle East to the east. In its narrowest sense, which is in use today in archaeology and other cultural contexts, it is equivalent to Cyprus and a stretch of land bordering the Mediterranean Sea in western Asia: i.e. the historical region of Syria, which includes present-day Israel, Jordan, Lebanon, Syria, the Palestinian territories and most of Turkey southwest of the middle Euphrates. Its overwhelming characteristic is that it represents the land bridge between Africa and Eurasia. In its widest historical sense, the Levant included all of the Eastern Mediterranean with its islands; that is, it included all of the countries along the Eastern Mediterranean shores, extending from Greece in Southern Europe to Egypt and Cyrenaica in Northern 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.
Near Eastern archaeology is a regional branch of the wider, global discipline of archaeology. It refers generally to the excavation and study of artifacts and material culture of the Near East from antiquity to the recent past.
The Ogasawara subtropical moist forests is a terrestrial ecoregion which encompasses the Ogasawara Archipelago of Japan. The Ogasawara Archipelago lies in the Pacific Ocean south of Honshu, Japan's largest island, and north of the Marianas Islands. The ecoregion includes the Bonin Islands and Volcano Islands chains. The islands are volcanic in origin, and have never been linked to a continent. They are home to distinct plants and animals including many endemic species.
The Syrian brown bear is a medium-sized and endangered subspecies of Eurasian brown bear native to the Middle East and West-Central Asia, particularly around the Caucasus Mountains.
The Eastern Mediterranean conifer-sclerophyllous-forests, also known as the Eastern Mediterranean conifer-forests, is an ecoregion in the eastern Mediterranean Basin. It covers portions of Turkey, Syria, Iraq, Lebanon, Israel, Palestinian territories, Jordan, and Saudi Arabia.
The wildlife of Israel includes the flora and fauna of Israel, which is extremely diverse due to the country's location between the temperate and the tropical zones, bordering the Mediterranean Sea in the west and the desert in the east. Species such as the Syrian brown bear and the Arabian ostrich have become extinct in Israel because of their loss of habitat. As of May 2007, 190 nature reserves have been established in Israel.
Potamon fluviatile is a freshwater crab found in or near wooded streams, rivers and lakes in Southern Europe. It is an omnivore with broad ecological tolerances, and adults typically reach 50 mm (2 in) in size during their 10–12 year lifespan. They inhabit burrows and are aggressive, apparently outcompeting native crayfish.
Johora singaporensis, the Singapore stream crab or Singapore freshwater crab, is a critically endangered species of freshwater crab endemic to Singapore. It grows to a size of 30 millimetres (1.2 in) wide.
Potamonautes sidneyi is a species of freshwater crab in the family Potamonautidae. The common name is the Natal river crab or Sidney's river crab, although they may also be referred to as "river crabs", "fresh water crabs" or "land crabs".
The Levantine Sea is the easternmost part of the Mediterranean Sea.
Potamon ibericum is a Eurasian species of freshwater crab. It is an omnivore that feeds on land, but returns regularly to the water, and can survive short periods of drought in burrows and under stones. Its natural range stretches from north-eastern Greece, around both sides of the Black Sea and to beyond the Caspian Sea; populations have also been introduced to southern France. It is included as a near threatened species on the IUCN Red List, and is included in the Red Data Book for Ukraine.
Around 1,300 species of freshwater crabs are distributed throughout the tropics and subtropics, divided among eight families. They show direct development and maternal care of a small number of offspring, in contrast to marine crabs, which release thousands of planktonic larvae. This limits the dispersal abilities of freshwater crabs, so they tend to be endemic to small areas. As a result, a large proportion are threatened with extinction.
Seychellum alluaudi is a species of freshwater crab endemic to the Seychelles, and the only true freshwater crab in that country. It lives in rainforest streams on the archipelago's granitic high islands. Although it may be abundant, little is known about its biology. If its habitat were to decline in quality, S. alluaudi might become endangered, but it is currently listed as Vulnerable on the IUCN Red List.
Epilobocera sinuatifrons is a freshwater crab of the family Epiloboceridae. The species is widely distributed in streams of Puerto Rico and occurs also on Saint Croix.
The Albanian Ionian Sea Coast is a coastline of the north-eastern Ionian Sea, that encompasses the south-western border of the Republic of Albania, stretching from the southern half of Karaburun Peninsula, across the historical region of Labëria, the city of Sarandë, the mountains of the Ceraunians, and the Albanian Riviera, to the Lake of Butrint, where the Strait of Corfu separates the country from Greece.
The Cape York Peninsula tropical savanna is a tropical grasslands, savannas, and shrublands ecoregion in northern Australia. It occupies the Cape York Peninsula in Queensland, mainland Australia's northernmost point. It is coterminous with the Cape York Peninsula, an interim Australian bioregion.
The wildlife of the Levant encompasses all types of wild plants and animals, including mammals, birds, reptiles, amphibians, fresh and saltwater fish, and invertebrates, that inhabit the region historically known as the Levant, Shaam, or Greater Syria. This is the region that today includes the following countries: Jordan, Israel, Palestine, Syria, Lebanon, and a section of southeastern Turkey, known as the Northern Syrian provinces, to which some add Cyprus and part of the Sinai.
Potamon rhodium, commonly known as the Rhodes freshwater crab and locally known as the Valley crab, is a semi-terrestrial crab endemic to the island of Rhodes, Greece. The unique pattern on the carapace seems to mimic a moth.