Annals of the Lyceum of Natural History of New York 7: 176—246. These records demonstrate that the presence of humans does not necessarily have a negative impact on land crab species. Furthermore, she has significantly helped to redefine the study of the complete evolutionary process in crabs. Lineages congruent with current subfamilial taxonomy include Paraoxypilinae, Hoplocoryphinae, Hymenopodinae, Acromantinae and Oligonicinae. A synopsis of the burrowing land crabs of the world and list of their arthropod symbionts and burrow associates. Eight of 10 podotreme families were represented along with representatives of 17 eubrachyuran families.
A new species of soldier crab genus Mictyris Latreille, 1806 is described from the Andaman Sea coast of Thailand. Journal of Science, Hanoi University of Education, 4, 120—132. Elamenopsis rotunda is perhaps most similar to E. Molecular Phylogenetics and Evolution, 40, 435—447. Ecology of the endemic land crab Johngarthia malpilensis Decapoda: Brachyura: Gecarcinidae , a poorly known species from the Tropical Eastern Pacific. The analyses revealed the paraphyly of Hymenopodidae, Iridopterygidae, Mantidae, and Thespidae and the monophyly of the Amorphoscelidae subfamily Paraoxypilinae. This volume is in honour of Dani le Guinot Mus um National d'Histoire Naturelle, Paris, France , and was born out of our admiration for Dani le s immense contributions to her discipline.
This appears to be due to, at least in part, a high degree of morphological convergence among representatives of the group and inadequate diagnoses of xanthoid taxa from species to family level e. Annals of the Lyceum of Natural History of New York 7: 176—246. Proceedings of the National Academy of Sciences. Anales del Instituto de Investigaciones Marinas de Punta de Betín. Phylogenetic analyses of molecular data used three methods of inference that recovered similar topologies with minor differences. Two new genera, Soliella gen.
Recent revisions in callianassid subfamilies and genera are questionable and appear to be incongruous with relationships evident in morphologically based phylogenetic reconstructions. Each member is given 50 PubFacts points upon signing up. Land crabs as key drivers in tropical coastal forest recruitment. Malpelo Island is inhabited by Johngarthia malpilensis, but the island is part of Colombia. This is another character that can be used to separate Crustaenia from Neorhynchoplax at the genus level.
To this end, some relevant morphological characters are discussed. Les deux espèces ont en commun une carapace semi-circulaire, 1,2 fois plus large que longue et des pattes marcheuses longues et fines. The land crab Johngarthia planata Stimpson, 1860 has been reported from the Baja California Peninsula and several oceanic islands in the Eastern Pacific as well as inshore islands of the Mexican, Costa Rican and Colombian coast. Effects of land crabs on seedling densities and distributions in a mainland neotropical rain forest. In this study I report the first continental mainland records for Johngarthia planata and discuss the possibility that human presence might actually facilitate the mainland settlement of such a species.
Molecular genetic analyses based on 16S mt, 12S mt, and Histone 3 nuclear genes position this species among other Xanthidae sensu stricto, and morphological comparisons place it nearest Indo-West Pacific representatives of Etisus, the genus to which it is provisionally assigned. However, this pattern is less pronounced in the Neotropics where Cardisoma crassum, Cardisoma guanhumi, Gecarcinus lateralis and Gecarcinus quadratus share evolutionary traits which allow it to adapt to the conditions in a coastal band of the continental mainland e. . The remaining chlorodielline genera and members of the Etisinae, a subfamily with supposedly close morphological affinities to the Chlorodiellinae, were recovered at various positions throughout the xanthid phylogeny, although with relatively low support values. La nouvelle espèce est très similaire à E. Twenty-four species in 10 genera are now known from Thailand, Vietnam, Singapore, Malaysia and western Indonesia, of which two genera Apechocinus and Crustaenia and eight species Amarinus crenulatus, A.
Annals of the Lyceum of Natural History of New York 7: 176—246. Maximum parsimony analysis of 20 morphological characters taken from first zoeas of 11 species yielded two equally parsimonious trees and generally supported the molecular analyses. In: Richer de Forges, B. Journal of Experimental Marine Biology and Ecology, 309 1 , 1—19. Annals of the Lyceum of Natural History of New York 7: 176—246. Two species are newly described from the continental margin of Western Australia: Oxypleurodon wilsoni and Rochinia annae.
Crabs seem to be foraging everywhere in the leaf litter, wildly waving their claws and scurrying away to their burrows and caves at the first apprehension of danger. Species of the Gecarcinus-group including Johngarthia, Gecarcinus and Gecarcoidea are dominant through sheer numbers, on some islands their mass exceeds the total mass of animals reported in tropical rain forests in Costa Rica and the central Amazon and they may occupy the top of the energy pyramid. In addition, a phylogenetic analysis of six chlorodielline genera indicates that the subfamily is polyphyletic as presently defined. The clear pattern of podotreme paraphyly and robustness of topologies recovered indicates that Podotremata as a formal concept is untenable. Journal of Experimental Marine Biology and Ecology, 43 1 , 49—60. A broad sample of 147 xanthid species representing 75 out of 124 genera from all 13 xanthid subfamilies were sampled in a multi-gene analysis. The negative impact on populations exerted by e.
Annals of the Lyceum of Natural History of New York 7: 176—246. The two species share a subcircular carapace with the carapace rim width about 1. Densities, diel activity, burrow shape, and habitat characteristics of Gecarcinus Johngarthia planatus Stimpson, 1860 Decapoda, Brachyura, Gecarcinidae at Socorro Island, Revillagigedo, Mexico. Journal of Experimental Marine Biology and Ecology, 440, 8—14. Crustáceos estomatópodos y decápodos de la Isla Clarión. Primer registro de Gecarcinus Johngarthia planatus Stimpson, 1860 Crustacea: Gecarcinidae para Colombia y notas sobre su zoogeografía en el Pacífico Americano.