00380nas a2200109   4500008004100000245007400041210007300115300001200188490000700200100001700207856004600224       1907                        eng d00aSur la présence de males en excès chez deux espèces de Synalphées0 aSur la présence de males en excès chez deux espèces de Synalphée  a610-6120 v621 aCoutière, H  uhttps://alpheidae.myspecies.info/node/34200398nas a2200109   4500008004100000245009700041210006900138300001200207490000600219100001700225856004600242       1984                        eng d00aDecapod crustaceans from Cay Sal Bank, Bahamas, with notes on their zoogeographic affinities0 aDecapod crustaceans from Cay Sal Bank Bahamas with notes on thei  a425-4470 v41 aLemaitre, R.  uhttps://alpheidae.myspecies.info/node/22700422nas a2200109   4500008004100000245012200041210006900163300001000232490000600242100001800248856004600266       1984                        eng d00aSynalpheus shrimps (Crustacea: Decapoda: Alpheidae). I. The Gambarelloides group, with a description of a new species0 aSynalpheus shrimps Crustacea Decapoda Alpheidae I The Gambarello  a1-1250 v71 aDardeau, M.R.  uhttps://alpheidae.myspecies.info/node/22800423nas a2200121   4500008004100000245010100041210006900142300001200211490000700223100001700230700002000247856003400267       1981                        eng d00aThe Intrasponge Fauna Of Spheciospongia-Vesparia (Porifera, Demospongiae) At Curacao And Bonaire0 aIntrasponge Fauna Of SpheciospongiaVesparia Porifera Demospongia  a139-1500 v621 aWestinga, E.1 aHoetjes, P., C.  u<Go to ISI>://A1981LT4580000800504nas a2200109   4500008004100000245018900041210006900230300001200299100001900311700001800330856004600348       1987                        eng d00aPopulation dynamics of the sponge-dwelling alpheid Synalpheus longicarpus, with observations on S. brooksi and S. pectiniger, in shallow-water assemblages of the eastern Gulf of Mexico0 aPopulation dynamics of the spongedwelling alpheid Synalpheus lon  a328-3371 aErdman, R., B.1 aBlake, N., J.  uhttps://alpheidae.myspecies.info/node/21502483nas a2200133   4500008004100000245010600041210006900147260000800216300001200224490000800236520205300244100001802297856003402315       1993                        eng d00aGenetic Population-Structure In 2 Tropical Sponge-Dwelling Shrimps That Differ In Dispersal Potential0 aGenetic PopulationStructure In 2 Tropical SpongeDwelling Shrimps  cJul  a459-4700 v1163 aThe spatial context in which ’’host races’’ of parasitic animals originate is a central issue in the controversial theory of sympatric speciation. Sponge-dwelling shrimps in the genus Synalpheus provide a good system for evaluating the possibility of resource-associated divergence in sympatry. I used allozyme electrophoresis to assess the genetic population structure of two Caribbean Synalpheus species sampled in 1988 to 1990 at a hierarchy of spatial scales. S. brooksi Coutiere is a host-generalist, using several sponge species in an area, and develops directly, with no planktonic larval stage. G-tests and estimates of F(ST) revealed highly structured populations in this species, with significant differentiation among samples from individual reefs within a region, and strong divergence among regions (Panama, Belize, Florida). Moreover, samples of S. brooksi taken from the two sponges Spheciospongia vesparium (Lamarck) and Agelas clathrodes (Schmidt) in Panama, and separated by less-than-or-equal-to 3 km, showed significant differentiation at both of the loci that were polymorphic in these populations. Genetic distances between these host-associated populations averaged > 60% greater than distances between samples from the same host species and were comparable to, or greater than, those for some inter-regional comparisons. These genetic data corroborate a previous finding of demographic differences between the same populations. The second species, S. pectiniger Coutiere, occurs only in Spheciospongia vesparium, and produces swimming larvae. Although allele frequencies in this species differed significantly among the three regions, S. pectiniger showed no differentiation within regions, and significantly lower differentiation (F(ST)) among regions than its direct-developing congener. These data suggest that genetic population structure in these two commensal crustaceans is related to dispersal potential, and that restricted dispersal may allow the divergence of host-associated populations on a local scale.1 aDuffy, J., E.  u<Go to ISI>://A1993LN9980001303373nas a2200517   4500008004100000245008400041210006900125300001200194490000700206520158400213653003301797653001301830653001201843653001501855653001501870653004401885653001601929653001201945653003701957653004101994653004702035653002802082653002202110653002902132653001302161653004502174653006702219653001702286653001802303653002802321653002802349653002402377653002802401653001502429653005802444653004602502653004502548653002102593653002702614653005502641653002202696653003802718653003502756100001802791856004602809       1992                        eng d00aHost use patterns and demography in a guild of tropical sponge-dwelling shrimps0 aHost use patterns and demography in a guild of tropical spongedw  a127-1380 v903 aDemographic consequences of the commensal lifestyle of shrimps Synalpheus spp. were assessed by sampling sponges and coral rubble on reefs in Caribbean Panama. Eight of 22 species were found solely or primarily within the internal canals of sponges. Among these sponge-dwellers, host specificity ranged from generation (occurrence in gtoreq 4 host species) to specialization on a single host species, and sponges used in the field were also preferreed in laboratory choice assays. Living in sponges had important consequences for shrimp populations. Parasitism by epicaridean isopods averaged 6 times higher in obligate sponge-dwellers (17%) than in free-living species (2.5%). Sponge species differed in the mean size and size range of habitable spaces they provide, number of potentially competing Synalpheus species they support, and vulnerability of associated shrimps to parasitism. Similarly, conspecific shrimp populations occupying different hosts differed demographically. Specifically, populations and Synalpheus brooksi in the sponge Spheciospongia vesparium were significantly less dense, less parasitized, had larger body sizes, and tended toward higher proportions of mature females than conspecifics in the co-occurring sponge Agelas clathrodes. High host specificity, regional variation in host use, and demographic and genetic differentiation among conspecific shrimps in different host species suggest that the commensal lifestyle has pervasive, and potentially evolutionarily important, consequences for the population biology of this diverse group of shrimps.10aAgelas clathrodes (Porifera)10aAnimalia10aanimals10aArthropoda10aArthropods10aComparative and Experimental Morphology10aCrustaceans10aEcology10aEcology (Environmental Sciences)10aEnvironmental Biology/Animal [07508]10aEnvironmental Biology/Oceanography [07512]10aEnvironmental Sciences)10aEvolution [01500]10aEvolution and Adaptation10aGenetics10aGenetics and Cytogenetics/Animal [03506]10aGenetics and Cytogenetics/Population Genetics (1972- ) [03509]10aInvertebrata10aInvertebrates10aMalacostraca: Crustacea10aMarine Ecology (Ecology10aNeotropical region)10aPanama (Central America10aPhysiology10aPhysiology and Pathology/Arthropoda-Crustacea [64054]10aPhysiology and Pathology/Porifera [64006]10aPopulation Genetics (Population Studies)10aPorifera [39000]10aPorifera: Invertebrata10aSpheciospongia vesparium (Organisms - Unspecified)10asponge (Porifera)10aSynalpheus brooksi (Malacostraca)10aSynalpheus spp. (Malacostraca)1 aDuffy, J., E.  uhttps://alpheidae.myspecies.info/node/18800528nas a2200121   4500008004100000245016900041210006900210300001200279490000700291100003400298700002800332856004600360       1999                        eng d00aThe crustacean decapod communities of three coral reefs from the southwestern Caribbean Sea of Cuba: Species composition, abundance and structure of the communities0 acrustacean decapod communities of three coral reefs from the sou  a539-5570 v651 aMart{\'ınez-Iglesias, J., C.1 aGarc{\'ıa-Raso, J., E.  uhttps://alpheidae.myspecies.info/node/15303036nas a2200181   4500008004100000245011600041210006900157260001000226300001200236490000700248520245500255653002302710653002302733100002102756700001302777700001802790856004602808       2004                        eng d00aPhylogenetic evidence for an ancient rapid radiation of Caribbean sponge-dwelling snapping shrimps (Synalpheus)0 aPhylogenetic evidence for an ancient rapid radiation of Caribbea  cMarch  a563-5810 v303 aA common challenge in reconstructing phylogenies involves a high frequency of short internal branches, which makes basal relationships difficult to resolve. Often it is not clear whether this pattern results from insufficient or inappropriate data, versus from a rapid evolutionary radiation. The snapping shrimp genus Synalpheus, which contains in excess of 100 species and is a prominent component of coral-reef faunas worldwide, provides an example. Its taxonomy has long been problematic due to the subtlety of diagnostic characters and apparently widespread variability within species. Here we use partial mt COI and 16S rRNA sequences and morphological characters to reconstruct relationships among 31 species in the morphologically well-defined gambarelloides species group, a putative clade of obligate sponge associates that is mostly endemic to the Caribbean and contains the only known eusocial marine animals. Analysis of the combined data produced a single tree with good support for many terminal clades and for relationships with outgroups, but poor support for branches near the base of the gambarelloides group. Most basal branches are extremely short and terminal branches are long, suggesting a relatively ancient, but rapid radiation of the gambarelloides group. This hypothesis is supported by significant departure from a null model of temporally random cladogenesis. Calibration of divergence times among gambarelloides-group species using data from three geminate pairs of Synalpheus species separated by the isthmus of Panama suggests a major radiation between apprx5 and 7 Mya, a few My before final closure of the Panamanian seaway during a period of spreading carbonate environments in the Caribbean; a second, smaller radiation occurred apprx4 Mya. This molecular evidence for a rapid radiation among Caribbean marine organisms in the late Miocene/early Pliocene is strikingly similar to patterns documented from fossil data for several other Caribbean reef-associated invertebrate taxa. The similar patterns and timing of cladogenesis evidenced by molecular and fossil data for different Caribbean and East Pacific taxa suggests that the radiation involved a wide range of organisms, and strengthens the case that poor basal resolution in the gambarelloides group of Synalpheus reflects a real evolutionary phenomenon. The rapid radiation also helps explain the historical difficulty of diagnosing species in Synalpheus.10a16S rRNA sequences10aadaptive radiation1 aMorrison, C., L.1 aRios, R.1 aDuffy, J., E.  uhttps://alpheidae.myspecies.info/node/10002605nas a2200157   4500008004100000245013400041210006900175260000800244300001200252490000700264520203400271100002202305700001302327700001802340856008902358       2006                        eng d00aBiodiversity, host specificity, and dominance by eusocial species among sponge-dwelling alpheid shrimp on the Belize Barrier Reef0 aBiodiversity host specificity and dominance by eusocial species   cMar  a165-1780 v123 aAlpheid shrimp represent an abundant and diverse, but poorly characterized, component of the cryptic biodiversity of coral reefs worldwide. Sponge-inhabiting alpheids provide a promising model system for exploring patterns of cryptic reef biodiversity because their habitats (hosts) are discrete and qualitatively distinct units. We tabulated data from 14 years of collections at Carrie Bow Cay, Belize to quantify patterns of diversity, host specificity, and dominance among sponge-dwelling shrimp (Synalpheus), with special attention to eusocial species. From > 600 sampled sponges of 17 species, we recognized at least 36 Synalpheus shrimp species. Of these, 15 (42%) were new to science. Species accumulation curves suggest that we have sampled most of the Synalpheus diversity at Carrie Bow Cay. Diversity of sponge-dwelling Synalpheus was slightly higher in shallow water, probably because of greater habitat diversity, than in deep water. Host specificity was surprisingly high, with > 50% of all shrimp species found in only a single sponge species each, although some shrimp species used as many as six hosts. Cohabitation of individual sponges by multiple shrimp species was rarer than expected by chance, supporting previous distributional and behavioural evidence that competition for hosts is strong and moulds patterns of host association. The fauna of most well-sampled sponge species was dominated, both in numbers of individuals and in frequency of occurrence, by eusocial species. Eusocial shrimp species also inhabited a significantly greater number of sponge species than did non-social shrimp. Consequently, > 65% of shrimp in our quantitative samples belonged to the four eusocial species, and on a per-species basis, eusocial species were 17 times as abundant as non-social species. Our data suggest that the highly diverse sponge-dwelling shrimp assemblage of the Belize Barrier Reef is structured by competition, and that eusociality has allowed a small number of species to dominate the sponge resource.1 aMacdonald, K., S.1 aRios, R.1 aDuffy, J., E.  ufile://localhost/Users/kristinhultgren/Desktop/Papers/Macdonald_Rios_&Duffy_2006.pdf00438nas a2200121   4500008004100000245010200041210006900143300001200212490000800224100001800232700002200250856004400272       2010                        eng d00aKin structure, ecology and the evolution of social organization in shrimp: a comparative analysis0 aKin structure ecology and the evolution of social organization i  a575-5840 v2771 aDuffy, J., E.1 aMacdonald, K., S.  uhttps://alpheidae.myspecies.info/node/400519nas a2200133   4500008004100000245015100041210006900192300000900261490000900270100002200279700002100301700001800322856004500340       2009                        eng d00aThe sponge-dwelling snapping shrimps (Crustacea, Decapoda, Alpheidae, Synalpheus) of Discovery Bay, Jamaica, with descriptions of four new species0 aspongedwelling snapping shrimps Crustacea Decapoda Alpheidae Syn  a1-570 v21991 aMacdonald, K., S.1 aHultgren, K., M.1 aDuffy, J., E.  uhttps://alpheidae.myspecies.info/node/19