Austruca perplexa
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Scientific classification 
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| Template:Taxon infoTemplate:Taxon italics (H. Milne-Edwards, 1837) [1]
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| Synonyms | |
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Austruca perplexa is a species of fiddler crab. It is found from the Ryukyu Islands, Japan to India, throughout the Malay Archipelago, along eastern Australian coasts from Queensland to New South Wales, and in various Pacific islands, including Fiji, Tonga and Vanuatu.[2][3]
Austruca perplexa was formerly in the genus Uca, but in 2016 it was placed in the genus Austruca, a former subgenus of Uca.[4][5][6]
As in other fiddler crabs, the male has a greatly enlarged claw, which is used for signalling. The higher the claw is waved by the male, the greater his chance of attracting a female; the size of the claw is therefore subject to sexual selection.[7] Furthermore, larger male fiddler crabs wave their claws at a faster rate than smaller fiddler crabs to attract larger females. Larger females are more desirable because they produce more eggs than smaller females.[8]
Waving is a strategic behavior used by males to signal to females that they are a desirable mate. By using their claw they are communicating with females and the environment around them (including possible competition). [9]
Austruca perplexa is usually found on sandy substrates near river mouths or on sheltered beaches in the mid-intertidal zone, usually near mangroves.[10]
References
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- ^ Page Module:Citation/CS1/styles.css has no content.Peter K. L. Ng; Danièle Guinot & Peter J. F. Davie (2008). "Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world" (PDF). Raffles Bulletin of Zoology. 17: 1–286. Archived from the original (PDF) on 2011-06-06. Retrieved 2010-01-16.
- ^ Page Module:Citation/CS1/styles.css has no content."Species Uca perplexa (H. Milne Edwards, 1852)". Australian Faunal Directory. Department of the Environment, Water, Heritage and the Arts. October 9, 2008.
- ^ Page Module:Citation/CS1/styles.css has no content."Uca perplexa". Crabs of Japan. Marine Species Identification Portal.
- ^ Page Module:Citation/CS1/styles.css has no content.Shih, Hsi-Te; Ng, Peter K. L.; Davie, Peter J. F.; Schubart, Christoph D.; et al. (2016). "Systematics of the family Ocypodidae Rafinesque, 1815 (Crustacea: Brachyura), based on phylogenetic relationships, with a reorganization of subfamily rankings and a review of the taxonomic status of Uca Leach, 1814, sensu lato and its subgenera". The Raffles Bulletin of Zoology. 64.
- ^ Page Module:Citation/CS1/styles.css has no content.Rosenberg, Michael S. (2019). "A fresh look at the biodiversity lexicon for fiddler crabs (Decapoda: Brachyura: Ocypodidae). Part 1: Taxonomy". Journal of Crustacean Biology. 39 (6).
- ^ Page Module:Citation/CS1/styles.css has no content."WoRMS taxon details, Austruca mjoebergi (Rathbun, 1924)". World Register of Marine Species. Retrieved 2020-11-16.
- ^ Page Module:Citation/CS1/styles.css has no content.Minoru Murai; Patricia R. Y. Backwell & Michael D. Jennions (2009). "The cost of reliable signaling: experimental evidence for predictable variation among males in a cost-benefit trade-off between sexually selected traits". Evolution. 63 (9): 2363–2371. doi:10.1111/j.1558-5646.2009.00726.x. PMID 19453725.
- ^ Page Module:Citation/CS1/styles.css has no content.Tina, Fahmida Wazed; Muramatsu, Daisuke (October 2019). Bertram, Susan (ed.). "Size‐dependent mating preference of the male fiddler crab Austruca perplexa". Ethology. 126 (1): 68–75. doi:10.1111/eth.12961. ISSN 0179-1613.
- ^ Page Module:Citation/CS1/styles.css has no content."Afruca", Wikipedia, 2026-04-15, retrieved 2026-04-18
- ^ Page Module:Citation/CS1/styles.css has no content."Queensland Coast: Guide to Fiddler Crabs of Queensland". 4 April 2015.
External links
- Page Template:Sister-inline/styles.css has no content.Script error: No such module "Sister project logo". Media related to Script error: No such module "Commons link". at Wikimedia Commons
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