Molecular phylogeny, taxonomy, and evolution of nonmarine lineages within the American grapsoid crabs Crustacea: Brachyura. LocationIndian and western Pacific Oceans. The Mindanao Current was found to be a narrow, southward-flowing current along the eastward side of the southern Philippine Islands, extending from 14°N to the south end of Mindanao near 6°N, where it then separates from the coast and penetrates into the Celebes Sea. Toonen Rethinking the mechanisms that shape marine decapod population structure Bree K. In order to manage populations of marine species for commercial use or under aspects of biodiversity conservation and ecosystem functioning, baseline knowledge of their population dynamics and connectivity needs to be established Fogarty and Botsford 2007. This paper examines latitudinal and longitudinal gradients in species richnesses of corals and reef fishes in the Indo-Pacific domain and compares them with gradients predicted by a mid-domain model in which geographic domains are located at random between the latitudinal and longitudinal bound- aries of this region.
Lavalli, Ehud Spanier January 24, 2007 Written by international experts, The Biology and Fisheries of the Slipper Lobster provides comprehensive coverage of the known biology, ecology, behavior, physiology, evolutionary history, and genetics of the numerous species in the family Scyllaridae. In our case, the means to apply genetic data to conservation action already exists in the ongoing, multiinstitutional partnerships of the Bird's Head Seascape Initiative Green and Mous 2004. Case studies of marine and limnic crustaceans from around the world highlight the importance and diversity of sources of population structure in intraspecific variation. Journal of Biogeography 40: 63-74. Combining theory and case studies of current best practices, the book helps researchers select methods of analysis and interpret their results. Mitochondrial patterns of intra- and interspecific differentiation among endemic freshwater crabs of ancient lakes in Sulawesi.
Oxford University Press, New York. Toonen Rethinking the mechanisms that shape marine decapod population structure Bree K. This suggests that a detectable proportion of the successful recruits settled extraordinarily close to their parents. Complete larval and early juvenile development of the mangrove crab Perisesarma fasciatum Crustacea: Brachyura: Sesarmidae from Singapore, with a larval comparison of Parasesarma and Perisesarma. The three propelagic stages and the first pelagic stage were described in an earlier paper; the present work contains descriptions of the remaining larval stages and the postlarva. First record and evidence of an established population of the North American mud crab Dyspanopeus sayi Brachyura: Heterotremata: Panopeidae from the western Mediterranean.
Crandall, and Tobias Santl Editor s Bio Christoph Held, PhD, is a senior research scientist at the Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany. Invertebrate Systematics 24 4 348-356. On the identities of Sesarma obesum Dana, 1851, and Sesarma eydouxi H. Population genetics, gene flow and biogeographic boundaries of Carcinus aestuarii Crustacea: Brachyura: Carcinidae along the European Mediterranean coast. Several fixed gene differences supported the specific status of Avicennia alba, A.
Haberma nanum, a new genus and new species of mangrove crab Crustacea: Decapoda: Brachyura: Sesarmidae from Singapore. On the correct name for Hemigrapsus edwardsii Hilgendorf 1882 Brachyura: Varunidae from New Zealand. This species tolerates a wide range of environmental conditions and typically inhabits fragmented habitats, such as embayments, lagoons and estuaries. While the center of the world's marine biodiversity is undoubtedly the central West Pacific, the mechanisms by which such high biodiversity was generated and perpetuated are still under debate. Here we show that this assumption is invalid for the only genus for which many taxa and multiple genetic markers have been analysed. Frati The position of crustaceans within the Arthropoda - Evidence from nine molecular loci and morphology; G. Crandall Molecular diversity of river versus lake freshwater anomurans in southern Chile Decapoda: Aeglidae and morphometric differentiation between species and sexes Heather D.
Tudge Evolution of Mating Systems in Decapod Crustaceans, A. Observational evidence to support or refute these mechanisms is rather fragmentary but is reviewed here. This pattern of geographic variation is the same as that found in terrestrial animals with geographic speciation. However, the heterogeneity of observed genetic distances and inferred separation times are difficult to accommodate under a uniform molecular clock. Although there are several theories to explain the origins of the Coral Triangle biodiversity hotspot, the Center of Origin theory has been criticized for lacking credible mechanisms for speciation within the center of the Coral Triangle. It is possible that, with the addition of more taxa, additional patterns would emerge. We tested the prediction that phylogenetic breaks between the Indian and Pacific Ocean basins should be more pronounced in continental than oceanic settings, and sought common geographical patterns of interspecific boundaries and intraspecific phylogenetic breaks in the region.
To enhance the understanding of larval dispersal in marine organisms, species with a sedentary adult stage and a pelagic larval phase of known duration constitute ideal candidates, because inferences can be made about the role of larval dispersal in population connectivity. In addition, we move beyond previous mid-domain analyses by directly comparing observed spatial distributions of geographic ranges with those pre- dicted by a mid-domain model. When retroflection is present that is, only a fraction of the western boundary current system in the Pacific enters the channel and the coastline is tilted, the above division of transports is dramatically altered. We focused on two common reef-building corals, Pocillopora damicornis Linnaeus 1758 and Seriatopora hystrix family: Pocilloporidae , from three regions under different management regimes: Teluk Cenderawasih, Raja Ampat, and southwest Papua. The presented data indicate that the prevailing speciation process in sexually reproducing marine animals is that of geographic speciation. Initial conditions of the simulation include a uniform species distribution with rates of speciation and extinction chosen to produce an increasing number of species over time.
The centrifugal speciation hypothesis appears to provide a suitable explanation for the way in which centres of origin theoretically operate. Crustaceana 71 2 : 185-196. Raffles Bulletin of Zoology Supplement 16: 233-256. Sister species from mangrove environments showed the least divergence, as would be expected if these were among the last habitats to be divided. Despite the incomplete and unidirectional nature of their gametic isolation, E. Schram Decapod Phylogenetics and Molecular Evolution, A. The channel cuts through a separating wall which runs from the northwest to the southeast; the retroflecting currents are taken to be zonal.
The three treatments allowed us to distinguish the effect of adult conspecifics in general gregarious settlement from the effect of conspecifics releasing young. Morphological and molecular evidence for a new endemic freshwater crab, Sesarma ayatum sp. When Indian crabs were not yet Asian — biogeographic evidence for Eocene proximity of India and Southeast Asia. The deeper subdivisions in an intraspecific phylogeny reflect the major sources of evolutionary gene pool diversity within a species, while the shallower molecular separations evidence more recent population subdivisions that can be related to comparative dispersal and gene flow patterns. Crandall Population structure of two crayfish with diverse physiological requirements Jesse W. If so, then which are their closest relatives within the Arthropoda? A key to the species of Lysiosquilloides is given. Monophyly and phylogenetic origin of the gall crab family Cryptochiridae Decapoda : Brachyura.