5 Works

A new, narrowly endemic species of swamp-dwelling dusky salamander (Plethodontidae: Desmognathus) from the Gulf Coastal Plain of Mississippi and Alabama

Robert Pyron, Kyle O'Connell, Jennifer Lamb & David Beamer
We describe a new, narrowly endemic species of swamp-dwelling dusky salamander (Plethodontidae: Desmognathus pascagoula sp. nov.) from the Gulf Coastal Plain of southeastern Mississippi and southwestern Alabama based on linear morphometrics, mitochondrial DNA, and single nucleotide polymorphisms from 881 loci produced using genotype-by-sequencing. Some populations of the new species were historically referred to as D. auriculatus, a polyphyletic assemblage of at least three species in the Atlantic and Gulf Coastal Plain from Texas to North...

Data from: The model marine diatom Thalassiosira pseudonana likely descended from a freshwater ancestor in the genus Cyclotella

Andrew J Alverson, Bank Beszteri, Matthew L Julius & Edward C Theriot
BACKGROUND: Publication of the first diatom genome, that of Thalassiosira pseudonana, established it as a model species for experimental and genomic studies of diatoms. Virtually every ensuing study has treated T. pseudonana as a marine diatom, with genomic and experimental data valued for their insights into the ecology and evolution of diatoms in the world's oceans. RESULTS: The natural distribution of T. pseudonana spans both marine and fresh waters, and phylogenetic analyses of morphological and...

Data from: Local adaptation despite high gene flow in the waterfall-climbing Hawaiian goby, Sicyopterus stimpsoni.

Kristine N. Moody, Sabrina N. Hunter, Michael J. Childress, Richard W. Blob, Heiko L. Schoenfuss, Michael J. Blum & M. B. Ptacek
Environmental heterogeneity can promote the emergence of locally adapted phenotypes among subpopulations of a species, whereas gene flow can result in phenotypic and genotypic homogenization. For organisms like amphidromous fishes that change habitats during their life history, the balance between selection and migration can shift through ontogeny, making the likelihood of local adaptation difficult to predict. In Hawaiian waterfall-climbing gobies, it has been hypothesized that larval mixing during oceanic dispersal counters local adaptation to contrasting...

Data from: Environmental estrogens cause predation-induced population decline in a freshwater fish

Daniel C. Rearick, Jessica Ward, Paul Venturelli & Heiko Schoenfuss
Understanding population-level effects of environmental stressors on aquatic biota requires knowledge of the direct adverse effects of pollutants on individuals and species interactions that relate to survival and reproduction. Here, we connect behavioral assays with survival trials and a modeling approach to quantify changes in antipredator escape performance of a larval freshwater fish following exposure to an environmental estrogen, and predict changes in population abundance. We quantified the effects of short-term (21 d) exposure to...

The effect of perceived values on negative mentoring, organizational commitment, job satisfaction, and perceived career success

Marcy Young Illies & Roni Reiter-Palmon
This study addresses how perceived mentor and protégé values affect negative mentoring, organizational commitment, job satisfaction, and perceived career success. Results indicate that protégés with mentors perceived to have self-enhancement values experienced more negative mentoring while protégés with mentors perceived to have self-transcendence values experienced less negative mentoring. Those who experienced negative mentoring had less organizational commitment, job satisfaction and perceived career success. It was also found that negative mentoring indirectly mediated between perceived mentor...

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