Galápagos Marine Invertebrates: Taxonomy, Biogeography, and by Matthew J. James (auth.), Matthew J. James (eds.)

By Matthew J. James (auth.), Matthew J. James (eds.)

Marine Invertebrate Evolution within the Galapagos Islands MATTHEW J. JAMES 1. standpoint of This quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. instructions for destiny learn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 three. Plan of This quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1. viewpoint of This quantity Charles Darwin introduced the Galapagos Islands to the eye of zoologists, botanists, and geologists following the six-week stopover at of H. M. S. Beagle to the islands in 1835. due to the fact then released learn at the biota of the islands, partic­ ularly in multiauthored volumes, has taken with terrestrial crops and animals. the current quantity is designed in particular to supply a precis of labor at the marine invertebrate fauna. One deviation from that target used to be the inclusion of a bankruptcy on land snails, which proved to be a sensible choice as the phylum Mollusca is now coated extra completely during this quantity than in any unmarried prior scholarly paintings at the Galapagos. the tutorial base line with this e-book is to clarify the evolutionary responses of shallow water, benthic marine invertebrates to the original set of insular stipulations that exist within the Galapagos Islands. The direction taken to that target has many paths together with taxonomic revision, making a choice on biogeo­ photo affinities, and interpreting the ecological standards of species. the data awarded here's for a few teams from the islands the 1st level in a radical strategy which can ultimately result in an knowing of the phylogenetic relationships of those species.

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Extra resources for Galápagos Marine Invertebrates: Taxonomy, Biogeography, and Evolution in Darwin’s Islands

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Origin of Species ...................................................................... 9. Meiofauna Speciation in the Galapagos Islands .......................................... References ............................................................................ 37 39 41 41 46 46 48 48 49 49 51 51 52 52 54 56 56 56 58 60 60 62 65 69 1. Introduction About three hundred and ninety species of the marine meiofauna of the Galapagos Islands in fourteen higher invertebrate taxa are known. These animals are usually found living between sand grains on sandy beaches throughout the archipelago.

Platyhelminthes. (A) Polystyliphora darwini Ax & Ax. 1974 (Proseriata). 5 mm. (B) Pseudmecynostomum tardum Ehlers & Dorjes. 1974 (Acoela). Length about 600 f1om. (C) Cryptostiopera cornuta Ehlers & Ax. 1974 (1)rphloplanoida). Length about 400 ILm. (A) From Ax and Ax (1974). (B) from Ehlers and Dorjes (1974). (C) from Ehlers and Ax (1974). 1. ; Praeaphanostoma thalassophilum Ehlers & Dorjes, 1979; Praeaphanostoma musculosum Ehlers & Dorjes, 1979; Praeaphanostoma vitreum Ehlers & Dorjes, 1979. Haploposthiidae: Pseudohaplogonaria minima Ehlers & Dorjes, 1979.

A number of other specialists from the Gottingen Zoological Institute and from various other institutions, including taxonomists from France, Sweden, the United States, and Chile (see Section 3) subsequently participated in the investigation of the preserved material. In total about 390 species have been identified, the majority of which are new to science. A number of specimens remain to be examined and described in the literature. The expedition was organized by the Akademie der Wissenschaften und der Literatur, Mainz, under supervision of Peter Ax.

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