Habitat Use of the Tuxedo Darter (Etheostoma lemniscatum) at Macrohabitat and Microhabitat Spatial Sclaes

Escaping the flow: boundary layer use by the darter Etheostoma tetrazonum (Percidae) during benthic station holding.

Aquatic habitats characterized by directional water flow (lotic environments) pose numerous challenges to their inhabitants, including the constant threat of dislodgement and downstream transport. As a result, many organisms exhibit morphological and/or behavioral adaptations that facilitate midwater or benthic station holding in these environments, such as the ventral sucker disc of armored ca...

Micro-habitat Analysis of the Blueside Darter (Etheostoma jessiae) In partial fulfillment of the CASNR Honors Program

Molecular, morphological, and biogeographic resolution of cryptic taxa in the Greenside Darter Etheostoma blennioides complex.

The systematic identity and genetic divergence of cryptic taxa and morphological subspecies in the Greenside Darter Etheostoma blennioides complex are analyzed from mitochondrial and nuclear DNA sequence data, along with morphological characters. We sequenced the mtDNA cytochrome b gene and control region and is the nuclear S7 intron 1 for 345 Greenside Darters from 19 locations across their di...

Systematics of the greenside darter Etheostoma blennioides complex: consensus from nuclear and mitochondrial DNA sequences.

The phylogenetic systematic relationships of the enigmatic greenside darter Etheostoma blennioides complex are analysed using sequences from the mitochondrial (mt) DNA cytochrome b gene and nuclear S7 ribosomal protein intron 1 from putative members of the complex, close relatives, and outgroups (totaling 421 individuals). We compare results from Bayesian and maximum likelihood analysis approac...

Incomplete behavioural isolation and asymmetric female preference in darter sister species (Percidae: Etheostoma).

In this study, female preferences and behavioural isolation were estimated in a pair of allopatric sister species, Etheostoma duryi and Etheostoma flavum. Dichotomous mate preference trials were conducted to determine whether females prefer to associate with conspecific over heterospecific males and free-spawning assays were conducted to determine whether those preferences translated into behav...