Results 191 to 200 of about 291,031 (231)

Freshwater crabs and the biodiversity crisis: Importance, threats, status, and conservation challenges [PDF]

open access: yesBiological Conservation, 2009
Freshwater ecosystems in the tropics host a diverse endemic fauna including freshwater crabs, but the rapid loss and deterioration of habitat means that many species are now under imminent threat. Studies on freshwater fish and amphibians suggest a third
Ng P, Tohru Naruse
exaly   +2 more sources

Evolutionary history of true crabs (Crustacea: Decapoda: Brachyura) and the origin of freshwater crabs. [PDF]

open access: yesMolecular Biology and Evolution, 2014
Crabs of the infra-order Brachyura are one of the most diverse groups of crustaceans with approximately 7,000 described species in 98 families, occurring in marine, freshwater, and terrestrial habitats. The relationships among the brachyuran families are poorly understood due to the high morphological complexity of the group.
Ng P, Ka Hou Chu, Shane T. Ahyong
exaly   +3 more sources
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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 Ma, Ng P, Ka Hou Chu
exaly   +3 more sources

A conservation assessment of the freshwater crabs of southern Africa (Brachyura: Potamonautidae)

open access: yesAfrican Journal of Ecology, 2008
Recent taxonomic revisions of the freshwater crabs of southern Africa (Angola, Botswana, Lesotho, Mozambique, Namibia, South Africa, Swaziland, Zambia and Zimbabwe) allow accurate depictions of their diversity, distribution patterns and conservation ...
Savel Regan Daniels
exaly   +2 more sources

The freshwater Grapsid crabs of Jamaica

Proceedings of the Linnean Society of London, 1964
SUMMARY. Four species of grapsid crabs, endemic to Jamaica, spend the whole of their life cycle in fresh water; an account of their biology is given. Metopulias depressus is confined to the water which collects at the base of large tank bromeliads, and is limited to limestone regions above an elevation of about a 1000 ft.
openaire   +1 more source

Freshwater Crabs of the Nile System

1976
In 1931 Major S. S. Flower brought together the results of 25 years interest in the Crustacea in his ‘Notes on Freshwater Crabs in Egypt, Sinai and the Sudan’ (Proc, Zool. Soc. Lond.). In doing so he expressed the hope that his paper might prove to be of use as a starting point for other workers.
openaire   +1 more source

A Brief History of Freshwater Crab Research

2016
The history of the study of the biology of freshwater crabs is described from the first records in ancient Greece up to the present day. Today, hundreds of scientists from all parts of the world are engaged in the study of all aspects of freshwater crab biology from field studies of their ecology to molecular studies of their systematics and genetics ...
Michael Türkay   +3 more
openaire   +1 more source

Freshwater Crabs and Prawns of Singapore

1990
Essays in zoology : papers commemorating the 40th anniversary of the Department of Zoology, National University of ...
openaire   +1 more source

Studies on the locomotor activity of the freshwater crab, Potamon fluviatile

Hydrobiologia, 1988
Locomotor activity in the freshwater crab, Potamon fluviatile, was studied both in the field, by direct counts of animals along a stream section, and by means of actographs. General metabolism was evaluated through the analysis of oxygen consumption.
GHERARDI, FRANCESCA   +3 more
openaire   +2 more sources

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