Results 131 to 140 of about 763 (167)

Phylogenomic analyses of brachyuran crabs support early divergence of primary freshwater crabs

Molecular Phylogenetics and Evolution, 2019
Recent fossil calibrated molecular phylogenies have revealed that the Brachyura underwent rapid radiation during the Cretaceous and Early Tertiary, resulting in many early diverging lineages separated by short internodes that remain difficult to resolve.
Ka Yan, Ng P, K H Chu
exaly   +3 more sources

Behavioral adaptations in larvae of brachyuran crabs: A review

Journal of Experimental Marine Biology and Ecology, 2016
Abstract Larval development in brachyuran crabs includes a number of zoeal stages followed by a single megalopal stage. Zoeae and megalopae are relatively strong swimmers, and movement up or down in the water column takes advantage of vertical shear in ambient currents with consequent transport in the horizontal dimension.
Jonathan Cohen, Charles E Epifanio
exaly   +2 more sources

The megalopa stage in brachyuran crabs. The Podotremata Guinot

Journal of Natural History, 1981
Summary The available information on the megalopa stage in podotrematous crabs, that is the Dromioidea, Homoloidea, Raninoidea and Tymoloidea, is reviewed. The morphology of the megalopas tends to support the relationships between these groups indicated by the zoeal stages but does not provide any additional evidence on the unresolved problem of ...
exaly   +2 more sources

Antimicrobial Lipids from the Hemolymph of Brachyuran Crabs

Applied Biochemistry and Biotechnology, 2009
The potential of marine crabs as a source of biologically active products is largely unexplored. In the present study, antimicrobial activity of the hemolymph (plasma) and hemocytes (plasma cells) of six brachyuran crabs was investigated against 16 pathogenic strains.
Samuthirapandian, Ravichandran   +3 more
openaire   +2 more sources

Carrying Behavior in Brachyuran Crabs

Journal of Crustacean Biology, 1986
ABSTRACT Carrying is a behavior in which the last one or two pairs of pereiopods of a crab are used to lift and hold an object dorsally over the body. This behavior is found in the families Homolidae, Latreilliidae, Dromiidae, Tymolidae, and Dorippidae.
openaire   +2 more sources

Latitudinal gradient in niche breadth of brachyuran crabs

Global Ecology and Biogeography, 2015
AbstractAimNiche breadth has long been hypothesized to decrease at low latitudes and contribute to global patterns of species diversity. Range size, phylogenetic relatedness and body size also have hypothesized relationships with both latitude and niche breadth, which may further affect niche breadth patterns. Existing terrestrial data are inconclusive
Papacostas, Katherine J.   +1 more
openaire   +2 more sources

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