Results 11 to 20 of about 291,031 (231)

The oldest freshwater crabs: claws on dinosaur bones. [PDF]

open access: yesSci Rep, 2019
International audienceWith approximately 1,500 extant species, freshwater crabs (Decapoda: Brachyura) are among the most diverse decapod crustaceans.
Robin N   +7 more
europepmc   +6 more sources

Neotropical freshwater crabs (Decapoda: Pseudothelphusidae) shred leaves [PDF]

open access: yesNauplius, 2020
Freshwater crabs are macroconsumers that are commonly found in Neotropical headwater streams that may play a key role in energy flow and nutrient cycling in detrital food webs.
Carol Yang   +3 more
doaj   +2 more sources

Freshwater crabs of upper Baleh river, Sarawak [PDF]

open access: yesBorneo Journal of Resource Science and Technology, 2018
Freshwater crabs are among the most threatened species, primarily due to their high levels of endemicity, poor dispersal ability, low fecundity and the relatively fragmented nature of freshwater ecosystems.
Jawatankuasa Kerja PSM UNIMAS
core   +4 more sources

Freshwater crabs in Africa

open access: yes, 2004
Freshwater crabs are a strangely neglected component of the world's inland aquatic ecosystems. Despite their wide distribution throughout the tropical and warm temperate zones of the world, and their great diversity, their role in the ecology of ...
Dobson, Michael
core   +3 more sources

Absorption of Silver on the Gills of a Freshwater Crab [PDF]

open access: yesNature, 1952
UNDER this title, Dr. D. W. Ewer and Ivan Hattingh1 quote in the following context a passage from a paper of mine2: “The localization of the silver-absorbing areas to certain gills which we have found in Potamon provides an exception to Koch's statement that ‘tous les organes decrits comme branchies chez les Crustaces…absorbent l'Ag'’.” However, the ...
D. W. EWER, IVAN HATTINGH
  +5 more sources

First record of a potamid crab (Decapoda: Brachyura) from Odisha State, India [PDF]

open access: yesNauplius, 2023
Freshwater crabs of the family Potamidae Ortmann, 1896, have so far not been recorded in the state of Odisha in India. We report for the first time a potamid crab, Acanthopotamon martensi (Wood-Mason, 1875), from Odisha.
Sameer Kumar Pati   +2 more
doaj   +1 more source

Top-Down Effect of Arthropod Predator Chinese Mitten Crab on Freshwater Nutrient Cycling

open access: yesAnimals, 2023
Aquatic litter decomposition is highly dependent on contributions and interactions at different trophic levels. The invasion of alien aquatic organisms like the channeled apple snail (Pomacea canaliculata) might lead to changes in the decomposition ...
Lin Wang   +7 more
doaj   +1 more source

Sexual Disruption in the Freshwater Crab (Geothelphusa dehaani) [PDF]

open access: yesIntegrative and Comparative Biology, 2005
To clarify the effect of environmental endocrine disruptors on the induction of secondary sexual characteristics in wild animals, we observed 1,527 male and 1,847 female specimens of sexually mature Japanese freshwater crabs, Geothelphusa dehaani, collected at 12 sample points from 10 rivers in Sasebo City, Nagasaki Prefecture, Japan.
Toshikazu, Ayaki   +4 more
openaire   +2 more sources

When Indian crabs were not yet Asian - biogeographic evidence for Eocene proximity of India and Southeast Asia [PDF]

open access: yes, 2010
Background: The faunal and floral relationship of northward-drifting India with its neighboring continents is of general biogeographic interest as an important driver of regional biodiversity.
Pfenninger Markus   +12 more
core   +1 more source

Challenging the cold: crabs reconquer the Antarctic [PDF]

open access: yes, 2005
Recent records of lithodid crabs in deeper waters off the Antarctic continental slope raised the question of the return of crabs to Antarctic waters, following their extinction in the lower Miocene ;15 million years ago.
Thatje, S.   +12 more
core   +1 more source

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