Data summaries are provided under our Stats and Conservation tab, usually as dashboards created with Tableau software by Colton Avila, and later improved by Casey Hartsough. These dashboards are dynamically linked to the Fishes of Texas database and facilitate a deeper understanding of our data. They can be tweaked using filters and copied into reports and presentations, but please cite us properly. They are meant to be mostly self-explanatory, but some details on each follows:
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Trend analyses were developed (provisionally and using only Tracks 1 & 2 data) for each species using methodology similar to Buckwalter to Buckwalter et al (2018). These authors provided a provided a quantitative method for detection of trends of expansion or contraction of range-size for fish based on collections data much like that held in FoTX. For more details on these methods see Cohen et. al. (2018).
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Buckwalter, J. D., E. A. Frimpong, P. L. Angermeier, and J. N. Barney. 2018. Seventy years of stream-fish collections reveal invasions and native range contractions in an Appalachian (USA) watershed. Diversity and Distributions 24(2):219–232.
, G. P. Gentle, D. Wiley, and D. Walling. 2018. Final Report: Conserving Texas Biodiversity: Status, Trends, and Conservation Planning for Fishes of Greatest Conservation Need. Texas Parks and Wildlife Department, United States Fish and Wildlife Service State Wildlife Grant Program.