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Phylum Gnathostomulida

Claus Nielsen

in Animal Evolution: Interrelationships of the Living Phyla

Published in print:
2011
Published Online:
December 2013
ISBN:
9780199606023
eISBN:
9780191774706
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199606023.003.0032
Subject:
Biology, Evolutionary Biology / Genetics, Animal Biology

The phylum Gnathostomulida comprises approximately 100 described interstitial marine ‘worms’ that are mostly microscopic and confined to detritus-rich sands. The group, which has a contentious ... More


Phylum Micrognathozoa

Claus Nielsen

in Animal Evolution: Interrelationships of the Living Phyla

Published in print:
2011
Published Online:
December 2013
ISBN:
9780199606023
eISBN:
9780191774706
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199606023.003.0033
Subject:
Biology, Evolutionary Biology / Genetics, Animal Biology

The phylum Micrognathozoa consists of only one species, the microscopic Limnognathia maerski, which was discovered in a cold spring at Disko Island in Greenland. Limnognathia is a cylindrical worm ... More


Rotifera

David V.P. Conway, Robert Camp, and Claudia Castellani

in Marine Plankton: A practical guide to ecology, methodology, and taxonomy

Published in print:
2017
Published Online:
October 2017
ISBN:
9780199233267
eISBN:
9780191835698
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780199233267.003.0038
Subject:
Biology, Aquatic Biology, Ecology

This chapter describes the taxonomy of Rotifera, which includes some of the smallest multicellular marine zooplankton. They range between 50 μ‎ to 500 μ‎m in length although some species can reach up ... More


Species and speciation without sex

Timothy G. Barraclough

in The Evolutionary Biology of Species

Published in print:
2019
Published Online:
August 2019
ISBN:
9780198749745
eISBN:
9780191814020
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780198749745.003.0006
Subject:
Biology, Evolutionary Biology / Genetics, Biodiversity / Conservation Biology

Species and speciation have been called phenomena of sexual organisms, and many of the concepts developed with sexuals in mind. It is clear theoretically, however, that asexuals should be affected in ... More


Pheromones mediating sex and dominance in aquatic animals

Thomas Breithaupt and Jörg D. Hardege

in Chemical Ecology in Aquatic Systems

Published in print:
2012
Published Online:
May 2015
ISBN:
9780199583096
eISBN:
9780191810091
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:osobl/9780199583096.003.0004
Subject:
Biology, Ecology

This chapter reviews the current knowledge on pheromones of aquatic animals. Pheromones are chemical signals used for communication within a species. It has been found that species from many ... More


Phylum Gastrotricha

Claus Nielsen

in Animal Evolution: Interrelationships of the Living Phyla

Published in print:
2011
Published Online:
December 2013
ISBN:
9780199606023
eISBN:
9780191774706
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199606023.003.0030
Subject:
Biology, Evolutionary Biology / Genetics, Animal Biology

The phylum Gastrotricha consists of roughly 500 described species of microscopic, aquatic animals, and has traditionally been divided into the marine Macrodasyoida and the marine or limnic ... More


Phylum Rotifera

Claus Nielsen

in Animal Evolution: Interrelationships of the Living Phyla

Published in print:
2011
Published Online:
December 2013
ISBN:
9780199606023
eISBN:
9780191774706
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199606023.003.0034
Subject:
Biology, Evolutionary Biology / Genetics, Animal Biology

The phylum Rotifera consists of approximately 2,000 described species of free-living, aquatic, mostly limnic organisms and about 900 aquatic or terrestrial, completely gutless, parasites. Many of the ... More


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