Editing Mangrove crab (section)

== Species and distribution ==
Current estimates place the number of mangrove crab species at 481 in 6 different families, with new species being discovered frequently.<ref name=":7" /> Mangrove crabs primarily live in the [[Indo-Pacific|Indo-West Pacific]] region in [[mudflat]]s along tropical coasts.<ref name=":15" /> The largest habitats for mangrove crabs are in [[Southeast Asia]], [[South America]], and [[Northern Australia]].<ref name=":8" /> As their name suggests, they are primarily found among [[mangrove tree]] forests and form [[Symbiosis|symbiotic]] relationships with the trees, restricting their habitat to where the trees can grow.<ref name=":3">{{Cite journal |last1=Dehghani |first1=Maryam |last2=Shadi |first2=Ahmad |last3=Gandomi |first3=Yasaman |last4=Ghasemi |first4=Ahmad |date=2022-10-05 |title=Health Assessment of Nayband National Park Mangroves and Genetic Diversity of Associated Sesarmid Crab ''Parasesarma Persicum'' |journal=Wetlands |language=en |volume=42 |issue=7 |pages=83 |doi=10.1007/s13157-022-01617-8 |bibcode=2022Wetl...42...83D |s2cid=252695978 |issn=1943-6246}}</ref>

=== Phylogeny ===
A variety of different species are what makeup the umbrella term of mangrove crabs. The two main crabs that typically dominate mangrove ecosystems are the [[Sesarmidae|sesarmid (Grapsidae)]] and [[Fiddler crab|fiddler crabs (Ocypodidae).]]<ref name=":2" /> The main difference between the two crab groups is their foraging habits.<ref name=":2" /> Litter ingested by sesarmid crabs forms fragmented organic material that helps stimulate microbial respiration, in contrast fiddler crabs remove reactive organic carbon.<ref name=":2" /> Mangrove crabs are a part of the [[Animal]]ia kingdom and are put into the [[Arthropod]]a phylum, Malacostraca class, and Decapoda order.<ref name=":16" /> Mangrove crabs can be classified into six different families: Camptandriidae, Dotillidae, Macrophthalmidae, Ocypodidae, Sesarmidae, and Oziidae.<ref name=":7" />

=== Types of mangrove crabs ===
* [[Sesarmidae|'''Sesarmid crabs''']]
* [[Fiddler crab|'''Fiddler crabs''']]
* ''[[Aratus pisonii]]'', Americas
* ''[[Haberma]]'', genus of small mangrove crabs, [[Indo-Pacific]], including:
** ''[[Haberma tingkok]]'', Hong Kong
* ''[[Metopograpsus messor]]'', [[Indo-Pacific]]
* ''[[Metopograpsus thukuhar]]'', Indo-Pacific
* ''[[Neosarmatium meinerti]]'', Indo-Pacific<ref>{{Cite web |title=Marine Species Identification Portal : Neosarmatium meinerti |url=http://species-identification.org/species.php?species_group=crabs_of_japan&id=1727 |access-date=2020-03-15 |website=species-identification.org}}</ref>
* ''[[Neosarmatium smithi]]'', Indo-Pacific<ref>{{Cite journal |last1=Giddins |first1=R. L. |last2=Lucas |first2=J. S. |last3=Nielson |first3=M. J. |last4=Richards |first4=G. N. |date=October 15, 1986 |title=Feeding ecology of the mangrove crab ''Neosarmatium smithi'' (Crustacea: Decapoda: Sesarmidae) |journal=Marine Ecology Progress Series |volume=33 |pages=147–155 |bibcode=1986MEPS...33..147G |doi=10.3354/meps033147 |doi-access=free}}</ref>
* ''[[Parasesarma leptosoma]]'', western Indian Ocean
* ''[[Perisesarma]]'', genus with 23 species, primarily Indo-Pacific, with two West African species, including:
** ''[[Perisesarma bidens]]'', Indo-Pacific
** ''[[Perisesarma guttatum]]'', western Indian Ocean
* ''[[Scylla serrata]]'', Indo-Pacific
* ''[[Scylla tranquebarica]]'', Indo-Pacific
* ''[[Sesarma]]'', genus with close to 20 species, many of which live in mangroves, Americas, Indo-Pacific
* ''[[Ucides cordatus]]'', western Atlantic Ocean
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