Results 181 to 190 of about 3,235 (232)

The Molecular Evolution of Visual Pigments of Freshwater Crayfishes (Decapoda: Cambaridae)

Journal of Molecular Evolution, 1997
This study examines the diverse maximum wavelength absorption (lambdamax) found in crayfishes (Decapoda: Cambaridae and Parastacidae) and the associated genetic variation in their opsin locus. We measured the wavelength absorption in the photoreceptors of six species that inhabit environments of different light intensities (i.e., burrows, streams ...
K A, Crandall, T W, Cronin
openaire   +2 more sources

An integrative taxonomic assessment leads to the synonymy of the Waccamaw Crayfish Procambarus braswelli Cooper 1998 with the Cedar Creek Crayfish Procambarus chacei Hobbs 1958 (Decapoda: Cambaridae).

Zootaxa
The southeastern United States (U.S.) is a global hotspot for crayfish diversity, with the majority of the >350 species known in the U.S. occurring here.
M. Kendrick, Bronwyn W. Williams
semanticscholar   +1 more source

Resource partitioning between the invasive crayfish Faxonius rusticus (Girard 1852) and the native F. virilis (Hagen 1870) affected by competitor presence and individual personality (Decapoda: Astacidea: Cambaridae)

Journal of Crustacean Biology
Native and invasive conger competition commonly occurs due to invasive species being the superior competitor within overlapping niches. Congener competition dynamics can be influenced by factors such as species as well as size and personality of both ...
Nicoleena M Storer, Paul A. Moore
semanticscholar   +1 more source

Regenerated claws of the virile crayfish Faxonius virilis (Hagen, 1870) (Decapoda: Astacidea: Cambaridae) generate weaker pinching forces compared to original claws

Journal of Crustacean Biology, 2021
Crustaceans are known for their ability to autotomize and regenerate their appendages. The appendages that are most often autotomized are their chela, often specialized as claws, which serve essential functions including foraging, fighting, mating, and
Z. Graham, C. Vargas, Michael J. Angilletta, A. Palaoro   +3 more
semanticscholar   +1 more source

Diel thermoregulation of the crawfish Procambarus Clarkii (crustacea, cambaridae)

Journal of Thermal Biology, 1994
In adiel cycle Procambarus clarkii has two preferred temperatures: 24.0 -I- 0.15 SEM °C during the day and 26.7 + 0.13 SEM °C at night. 2. The preferred temperatures are independent from the weight of the organisms. 3. In the photophase the animals are dispersed, in the scotophase they congregate. 4.
L.F. Bückle Ramírez, F. Diaz Herrera, F. Correa Sandoval, B. Barón Sevilla, M. Hernández Rodriguez   +4 more
openaire   +1 more source

Description of a new species of crayfish in the genus Faxonius (Decapoda: Cambaridae) from the Lower Ohio River Drainage, with evidence of glacial influence on the distribution of some crayfish species throughout the Ohio River basin.

Zootaxa, 2022
Variation in morphology of Faxonius jeffersoni has been documented since the 1960s. However, a taxonomic review of the species had not been conducted. In order to clarify if F.
Zachary L. Couch, David M. Hayes
semanticscholar   +1 more source

A New Crayfish (Decapoda, Cambaridae) From Southeastern Texas

1990
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Hobbs, H. H. (Horton Holcombe),, Hobbs, Horton H. (Horton Holcombe)   +1 more
openaire   +1 more source

Cambarus ocoeensis, a new species of crayfish (Decapoda: Cambaridae) from the Ocoee River Basin of Tennessee, USA.

Zootaxa
Cambarus ocoeensis sp. nov. is described from the Ocoee River Gorge area of Tennessee. The species is morphologically most similar to Cambarus hiwasseensis Hobbs, 1981, but differs from C.
R. Thoma, Bronwyn W. Williams
semanticscholar   +1 more source

Juvenile drift of an invasive crayfish Faxonius virilis (Hagen, 1870) (Decapoda: Astacidea: Cambaridae) in the middle Pecos River, New Mexico, USA

Journal of Crustacean Biology, 2022
Ecologists have long recognized that dispersal capabilities influence range expansion by nonnative species. Some of the most disruptive crayfish invaders are highly mobile as adults within and across watershed networks.
Sara A Ricklefs, J. E. Filbrun
semanticscholar   +1 more source

A Revision of the Dwarf Crawfishes (Cambaridae, Cambarellinae)

Journal of Crustacean Biology, 1983
ABSTRACT Three species-groups of dwarf crawfishes (genus Cambarellus) are accorded subgeneric status: Pandicambarus, containing the most generalized species and restricted to the United States; the monotypic Dirigicambarus, the range of which lies within that of the former; and the nominate subgenus, which is confined to Mexico.
openaire   +1 more source