369 research outputs found
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Nerodia rhombifera
Number of Pages: 4Integrative BiologyGeological Science
Cotylogaster occidentalis (Aspidogastrea: Aspidogastridae) from Freshwater Drum, Aplodinotus grunniens (Actinopterygii: Sciaenidae), in Northeastern Oklahoma
Distribution, Habitat, and Life History Aspects of the Dwarf Crayfishes of the Genus Cambarellus (Decapoda: Cambaridae) in Arkansas
The dwarf crayfishes of the genus Cambarellus are represented in Arkansas by only 2 species: Cambarellus (Pandicambarus) puer (Hobbs) and C. (P.) shufeldtii (Faxon). Both species are quite small and uncommonly encountered in the state. Between 1972 and 2018, we made 368 crayfish collections throughout the 75 counties of Arkansas. A total of 34 collections (our collections, plus museum specimens), and those previously collected by Reimer (1963) yielded a total of 304 specimens of C. puer and 12 collections of C. shufeldtii returned 54 specimens of C. shufeldtiii. Herein, we document these 2 dwarf crayfishes from primarily the Coastal Plain and Mississippi Alluvial Plain physiographic provinces of Arkansas. Cambarellus puer is documented from 24 counties whereas C. shufeldtii was recorded from only 12 counties. With regard to conservation status, both C. puer and C. shufeldtii should be considered as “Currently Stable” due to their widespread distribution and general abundance in Arkansas
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Cnemidophorus sexlineatus
Number of Pages: 12Integrative BiologyGeological Science
More Host Records for Acanthocephalan Parasites from Arkansas Fishes (Aphredoderidae, Catostomidae, Centrarchidae, Cyprinidae, Esocidae, Percidae)
The Fishes of Chadron Creek, Dawes County, Nebraska
This first modern comprehensive survey of fishes collected from Chadron Creek, Dawes County, Nebraska, documents collections made with a small seine and backpack electrofisher during November 2007 and February and March 2008. Chadron Creek’s fish community is of low diversity. The total of 3 collections at each of 9 stations along the length of Chadron Creek resulted in 254 individual fishes, which represented only 7 species within 4 families. Water quality parameters, including dissolved oxygen, pH, conductivity, total dissolved solids, temperature and fecal coliform counts indicate that Chadron Creek is a healthy stream capable of supporting a greater diversity of fishes. Land management practices may be responsible for elevated fecal coliform levels at one locality on the creek. Comparisons of fishes collected herein are made with historical records of fish collected between 1893 and 2000, and show that there are 50% fewer species present than those known from historical accounts
Distribution, Habitat, and Life History Aspects of the Shrimp Crayfish, Faxonius lancifer (Hagen) (Decapoda: Cambaridae) in Arkansas
The Shrimp Crayfish, Faxonius (formerly Orconectes) lancifer (Hagen) is an uncommon, although widespread, crayfish in Arkansas. This species is herein documented from 19 counties of the Gulf Coastal Plain physiographic region. Between 1974 and 2017, we made 344 collections throughout the 75 counties of Arkansas, of which 22 (6%) yielded 163 specimens of F. lancifer. Thus, from these collections, plus 10 unpublished collections of Reimer (1963), and one collection from G.L. Harp, a total of 34 collections of F. lancifer are now known from the state. Faxonius lancifer ranged from uncommon (1 specimen) to locally abundant (39 specimens) at these collecting localities. With regard to conservation status, F. lancifer should be considered as Currently Stable due to its widespread distribution and general abundance in Arkansas
Observations on the Incidence of Chiggers, Eutrombicula alfreddugesi (Oudemans) on Crotaphytus (Sauria: Iguanidae) in Izard County, Arkansas
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