title: Preliminary survey of the mayflies (Ephemeroptera) and caddisflies (Trichoptera) of Big Bend Ranch State Park and Big Bend National Park.
abstract: The mayfly (Insecta: Ephemeroptera) and caddisfly (Insecta: Trichoptera) fauna of Big Bend National Park and Big Bend Ranch State Park are reported based upon numerous records. For mayflies, sixteen species representing four families and twelve genera are reported. By comparison, thirty-five species of caddisflies were collected during this study representing seventeen genera and nine families. Although the Rio Grande supports the greatest diversity of mayflies (n=9) and caddisflies (n=14), numerous spring-fed creeks throughout the park also support a wide variety of species. A general lack of data on the distribution and abundance of invertebrates in Big Bend National and State Park is discussed, along with the importance of continuing this type of research.
authors.affiliation: Department of Entomology, Texas A&M University, College Station, Texas 77843-2475, USA. dbaumgardner@tamu.edu
authors.forename: David E
authors.initials: DE
authors.lastname: Baumgardner
authors.forename: David E
authors.initials: DE
authors.lastname: Bowles
mesh_terms: D000818:Animals; D044822:Biodiversity; D007313:Insecta / Q000145:classification* / Q000502:physiology*; D011157:Population Dynamics; D013045:Species Specificity; D013781:Texas