Euprenolepis procera
Euprenolepis procera | |
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Workers of Euprenolepis procera feeding on a Pleurotus mushroom | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Hymenoptera |
Family: | Formicidae |
Subfamily: | Formicinae |
Genus: | Euprenolepis |
Species: | E. procera
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Binomial name | |
Euprenolepis procera (Emery, 1900)
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Synonyms[1] | |
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Euprenolepis procera is a species of
Distribution
Euprenolepis procera is endemic to South East Asia, being found in the rainforests of Malaysia, Thailand and Indonesia.[1] In Malaysia, where they have been studied, individual colonies were recorded to occur at a density of one nest per approximately 150 m2, but Witte & Maschwitz stated this may be an underestimate as they may not have discovered some colonies.[2]
Taxonomy
This species was
In 1913, Auguste-Henri Forel described a new species, Camponotus (Myrmosphincta) antespectans, which was also moved to Euprenolepis by Emery. This is now considered a synonym of E. procera.[1]
Description
Workers
The workers are polymorphic, consisting of a minor (body length = 3.5–4.5 millimetres or 0.14–0.18 inches) and major caste (body length = 5–6 mm or 0.20–0.24 in); the major caste is relatively rare compared to the minor caste. The workers' heads are heart-shaped, broader than they are long and a "dark-reddish brown" colour. The antennae of both worker castes are made up of twelve segments and are a lighter colour than their heads, their mandibles have five teeth. The major workers superficially resemble species of Pseudolasius.[1]
Reproductive castes
The
Behaviour
Euprenolepis procera is
Feeding
Over 200 species of ants are known to eat fungi as a major part of their diet, but these ants in the
Once they locate mushrooms which they consider edible in the wild, they harvest them efficiently, removing over 70% of the mushroom within four hours. In a laboratory study, they almost completely harvested a Pleurotus mushroom that weighed 40 grams (1.4 oz) within three hours. Once they have harvested the mushrooms, they transport pieces of them back to their nest and arrange them into piles 1–4 cm (0.4–1.6 in) in diameter. Over time these piles turn from white to black, losing mass as workers continuously chew and feed on the fungi and in turn feed the ant
They are thought to have evolved this feeding habit because few other animals eat mushrooms and therefore there is little competition for the food resource. When mushrooms were placed near nests of E. procera they were by far the main consumer of the mushrooms with other animals barely feeding on them.[2]
Ecological significance
The effects that harvesting of mushrooms by E. procera has on the ecosystem is currently unknown. They may have similar effects as ants that harvest seeds of plants, by changing the relative abundance of different fungal species.[2]
References
- ^ S2CID 17593476.
- ^ S2CID 19228479.
- ^ "Euprenolepis procera (Emery, 1900)". Integrated Taxonomic Information System. Retrieved November 8, 2010.
- ^ Carlo Emery (1900). "Formiche raccolte da Elio Modigliani in Sumatra, Engano e Mentawei" [Ants collected by Elio Modigliani in Sumatra, Enggano Island and the Mentawei Islands]. Annali del Museo Civico di Storia Naturale Giacomo Doria (Genova). 2 (in Italian). 20 (40): 661–722.
- .
- ^ Marcus, Adam (2008-07-30). "Fungus-Loving Ants Live Primarily on Mushrooms". Scientific American. Retrieved 2011-01-12.