Styloniscus manuvaka is a species of terrestrial isopod endemic to the islands of Rapa Nui and Rapa Iti.[1] Its name is an epithet in the Rapa Nui language that translates roughly to "Canoe Bug". The name references the Canoe Bug Hypothesis[2] which holds this species colonized these islands alongside ancient Polynesians via transplanted "Canoe Plants"[3] such as banana, taro, and breadfruit. While this species is presently known only by relict populations in caves on Rapa Nui, its status on Rapa Iti is unknown. Another "Canoe Bug", Hawaiioscia rapui, is the only other terrestrial isopod species native to Rapa Nui.[1]

Styloniscus manuvaka
Styloniscus manuvaka female paratype
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Isopoda
Suborder: Oniscidea
Family: Styloniscidae
Genus: Styloniscus
Species:
S. manuvaka
Binomial name
Styloniscus manuvaka
Taiti & Wynne, 2015

Styloniscus manuvaka is in need of conservation measures, as its persistence is likely threatened by a combination of habitat loss, non-native species, and global climate change.[1][2]

The Darwin200 project will survey for this species and other potential canoe bug species on Rapa Nui, Pitcairn, and Mangareva islands in June of 2024.[4]

References

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  1. ^ a b c Taiti, Stefano; Wynne, J. Judson (2015-07-30). "The terrestrial Isopoda (Crustacea, Oniscidea) of Rapa Nui (Easter Island), with descriptions of two new species". ZooKeys (515): 27–49. Bibcode:2015ZooK..515...27T. doi:10.3897/zookeys.515.9477. ISSN 1313-2989. PMC 4525033. PMID 26261438.
  2. ^ a b Wynne, J. Judson; et, al. (2014). "Disturbance Relicts in a Rapidly Changing World: The Rapa Nui (Easter Island) Factor". BioScience. 64 (8): 711–718. doi:10.1093/biosci/biu090.
  3. ^ Whistler, W. Arthur (2009). Plants of the Canoe People: An Ethnobotanical Voyage through Polynesia. Hawaii: National Tropical Botanical Garden. ISBN 9780915809004.
  4. ^ Darwin200 Project. "Darwin200 Research Page".{{cite web}}: CS1 maint: numeric names: authors list (link)