The Texas Journal of Science articles from February 2001

The Texas Journal of Science archives from February 2001

New additions and persistence of the introduced fishes of the upper San Antonio River, Bexar County, Texas.
February 1, 2001... Abstract. -- The fish fauna of the upper San Antonio River, Bexar County, Texas, includes ten introduced species (Astyanax mexicanus, Hypostomus sp., Poecilia reticulata, P. latipinna, Xiphophorus helleri, Belonesox belizanus, Cichlasoma...

Fishes of the Keechi Creek Wildlife Management Area of east Texas.
February 1, 2001... Abstract. -- The aquatic habitats of the Keechi Creek Wildlife Management Area in central east Texas were surveyed in May, June and August of 1999. A total of 34 species from 12 families were documented. These records serve to establish the...

Life history, food habits and production of Progomphus obscurus Rambur (Odonata: Gomphidae) in Harmon Creek of east Texas.
February 1, 2001... Abstract. -- Progomphus obscurus Rambur is a burrowing dragonfly species which is abundant in eastern Texas sandy streams. The naiads and adults of P. obscurus were collected from and around Harmon Creek (Walker County, Texas) from November...

Spider assemblages along the Rio Grande at Laredo, Texas.
February 1, 2001... Abstract. -- Three sites were surveyed along the Rio Grande at the Laredo Community College campus. Spiders were collected from each community utilizing pitfall traps, sweep-netting and beating woody vegetation. The spiders were identified to...

A numerical measure of commutativity for projections.
February 1, 2001... Abstract. -- This note defines a scalar measure of the commutativity of two orthogonal projections. ********** This note is set in the context of a complex Hilbert space (H, <*|*>). It's purpose is to define a scalar that tells...

Studies on the natural history and ecology of sympatric whiptail lizards (Cnemidophorus marmoratus and C. tesselatus) from Madera Canyon (Brewster County, Texas).
February 1, 2001... Abstract. -- This study addresses various aspects of the natural history and ecology of Cnemidophorus marmoratus and C. tesselatus (Squamata: Teiidae) from Madera Canyon, Texas (Brewster County), located on Big Bend Ranch State Park...

Correlations of some climatic variables with mammalian species richness in Texas.
February 1, 2001... Abstract. -- The statistical correlation between mammalian species richness and a suite of twelve climatic variables is examined for the state of Texas. The taxa include the total number of native land mammals studied (141 sp.) as well as the...

Effects of cool season prescribed fire on understory vegetation in a mixed pine hardwood forest of east Texas.
February 1, 2001... Abstract. -- Response of understory woody and herbaceous vegetation to late winter fire was evaluated in an upland Pinus taeda L. (loblolly pine) mixed hardwood forest within Mission Tejas State Park in east Texas. Understory woody plants,...

The arthropod community in bat guano from an abandoned building in Presidio County, Texas.(GENERAL NOTES)
February 1, 2001... Although several studies have examined the arthropod communities that are associated with bats in Texas caves (Kohls & Jellison 1948; Ryckman 1956), there has not been a study of organisms that co-exist with bats in man-made structures for...

Distributional records for mammals in north-central Texas.(GENERAL NOTES)
February 1, 2001... Distributions of mammals in north-central Texas have not been well documented. Dalquest & Horner (1984) reported a few mammals from Montague and Wise counties, and McCarley (1959) and Schmidly (1983) documented a few species in Grayson,...

Negative effects of imported fire ants on deer: the "increased movement" hypothesis.(GENERAL NOTES)
February 1, 2001... Since its accidental introduction at the port of Mobile, Alabama, circa 1940 (Buren 1972; Rhoades 1977), the red imported fire ant Solenopsis invicta has expanded its range in the United States to > 100 million ha (Vinson 1997). The primary...

Shinner's & Mahler's Illustrated Flora of North Central Texas.(Book Review)
February 1, 2001... Shinner's & Mahler's Illustrated Flora of North Central Texas by George M. Diggs, Jr., Barney L. Lipscomb and Robert O'Kennon. Botanical Research Institute of Texas, Sida, Botanical Miscellany No. 6, 1999. 1626 pages plus XII introductory...