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Biodiversity Blog

 

Featured Species: Chihuahua Catfish (Ictalurus sp. Chihuahua Catfish)

ChihuahuaCatby Dr. Dean Hendrickson (Curator of Ichthyology)   The very rare and still scientifically undescribed Chihuahua Catfish, "Ictalurus sp." is known only from streams of the Río Grande basin. It looks superficially a lot like the common Channel Catfish (Ictalurus punctatus), and hybridizes with that species. Non-hybrids, however, are identi...

Featured Species: Nolina nelsonii

Nolina nelsonii habit web   Nolina nelsonii growing at the corner of Inner Campus Dr. and Whitis Ave., the University of Texas at Austin by Dr. José Panero, Associate Professor and Associate Director of the Billie L. Turner Plant Resources Center The gardens surrounding the BIO Building and the Teaching Greenhouse have several interesting plants donated in y...

Featured Species: Fishes of Waller Creek and the Invasive Variable Platyfish (Xiphophorus variatus)

IMG 7504by Adam Cohen (Ichthyology Collection Manager) and Dean Hendrickson (Curator of Ichthyology)   For the last 25 years, the Hendrickson Lab has been monitoring the fishes of Waller Creek, on the UT campus as well as the surrounding vicinity. Their specimen collections have usually included UT students, the public, or local schools, illustr...

Featured Species: Hypoponera inexorata

opacior7 X2This rare, mostly underground ant species was not known from UT’s Brackenridge Field Lab until this year, when Curator of Entomology Alex Wild found one by chance under a stone. He snapped this photograph, possibly the first photograph taken of H. inexorata in the field. Colonies are small and subterranean, often near other species of ants. The wor...
Featured Species: Redfin Pickerel (Esox americanus)

Featured Species: Redfin Pickerel (Esox americanus)

by Dr. F. Douglas Martin The Grass or Redfin Pickerel, often referred to by fishermen as “jacks” or “jackfish,” has a wide distribution occurring from southern Quebec to Florida and from the East Coast to the Brazos River drainage in Texas and the Missouri River in Nebraska.  While smaller than its cousins, the Northern Pike and Muskellun...