Browsing by Author "Dixon, James R."
Now showing items 1-20 of 193
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Prestridge, Heather L. (2010-10-12)The non-game wildlife trade poses a risk to our natural landscape, natural heritage, economy, and security. Specifically, the trade in non-game reptiles and amphibians exploits native populations, and is likely not sustainable ...
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Johnson, Jerry D. (Texas A&M University. Libraries, 1984)Two-hundred eighty-nine species of native terrestrial herpetofauna are known to occur within the boundaries of northwestern Nuclear Central America, the Mexican land mass east of the Isthmus of Tehuantepec, exclusive of ...
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Scudday, James Franklin (Texas A&M University. Libraries, 1971)Sympatric populations of Cnemidophorus in Trans-Pecos Texas were studied over a three year period, 1968-1970. Biological aspects of competition in relation to the environment, food, reproduction, and behavior were investigated. ...
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Hendricks, Fred Samuel (Texas A&M University. Libraries, 1975)The ontogenetic, sexual and geographic variation of scutellation and dorsal, throat and ventral patterns of cnemidophorus tigris east of the Continental Divide is examined using univariate and multivariate statistical ...
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Fleet, Robert Ryland (Texas A&M University. Libraries, 1972)The breeding cycle of the Red-tailed Tropicbird (Phaethon rubricauda) on Green Island, Kure Atoll, Hawaiian Islands, was studied during 1964 and 1965. Study methods included direct observation of marked nests and of ...
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Engstrom, Mark D. (Texas A&M University. Libraries, 1984)Oryzomys melanotis comprises at least three chromosomal races: a 2n=62, FN=68 cytotype in eastern and southern Mexico; a 2n=64, FN=70 cytotype on the Yucatan Peninsula; and a 2n=60, FN=116 cytotype in western Mexico. ...
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Sites, Jack Walter (Texas A&M University. Libraries, 1980)The iguanid lizard Sceloporus qrammicus consists of at least six chromosome "races" (=cytotypes) distributed throughout most of Mexico. Three of these cytotypes (2n=32, 34, and 36) were studied in detail in that part of ...
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Dayton, Gage Hart (Texas A&M University, 2006-04-12)The distribution and abundance of organisms is influenced by historical, abiotic, and biotic factors. The goal of my dissertation was to determine the distribution of anurans in the Big Bend region of the Chihuahuan Desert ...
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Ballinger, Royce Eugene (Texas A&M University. Libraries, )Population studies of Sceloporus jarrovi using mark-recapture procedures were conducted on two study plots near Portal, Arizona during the summer months of 1969 and 1970. Similar studies of Sceloporus poinsetti were conducted ...
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Mather, Charles Michael (Texas A&M University. Libraries, 1976)An ecological study of sympatric populations of Sceloporus variabilis and S. undulates was conducted from February 1975 until February 1976. The study area was located in Uvalde County, Texas in an ecotone between the South ...
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Kroll, James Clarence (Texas A&M University. Libraries, 1973)The physiological ecology of eastern and western hognose snakes are compared from an interspecific competition basis. Study methods included radiotelemetry, mark-recaptures, histological, anatomical and behavioral techniques. ...
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Hayes, William Arthur (Texas A&M University. Libraries, 1976)The agonistic behavioral patterns of sixteen crayfish species representing four genera of the North American family Cambaridae were observed and compared. The crayfish species studied (Cambarellus puer, Procambarus acutus ...
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Hodson, Ronald Gene (Texas A&M University. Libraries, )Occurrence and abundance of fishes were studied in heated and non-heated areas of Lake Bastrop, Lake Nasworthy and North Lake reservoirs used for cooling by power plants. On monthly trips fishes were captured at night by ...
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Vaughan, Ramah Kathryn (Texas A&M University. Libraries, 1991)The behavior of three species of nocturnal Texas geckos, Hemidactylus turcicus. Cyrtopodion scabrum, and Coleonyx brevis, was studied in an indoor laboratory and an outdoor enclosure complex to assess the behavioral I ...
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Newman, George Allen (Texas A&M University. Libraries, 1975)Field studies were conducted in the summers of 1972, 1973, and 1974, to quantitatively document the breeding avifaunas of 5 relict woodland communities of the southern Guadalupe Mountains, Guadalupe Mountains National Park, ...
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Coon, Donald Wayne (Texas A&M University. Libraries, 1974)The daily movements of brown-headed cowbirds on wintering grounds and ecological factors affecting these movements were examined. Study methods included mark-recapture and direct observation of behavioral patterns. ...
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Patton, Robert Farmer (Texas A&M University. Libraries, 1974)Field work on the ecological and behavioral relationships or the tour species of skunks of Trans Pecos Texas was initiated in June 1968 and concluded in June 1973. The bulk of the research was conducted on a permanent study ...
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Hanselka, Calvin Wayne (Texas A&M University. Libraries, )An 18 month field and laboratory study was conducted on the behavioral effects of methyl parathion (MP), an organophosphorus insecticide, on the desert pocket mouse (Perognathus penicillatus). The study was conducted in ...
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Simpson, Christopher David (Texas A&M University. Libraries, 1974)This study serves to consolidate various scattered data on the biology of the bushbuck, as well as to establish some firm base line for future research. To this end, the status of bushbuck in the northeast corner of the ...
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Jordan, Wendell Edward (Texas A&M University. Libraries, 1968)Purpose: This study compared the cognition of sixth grade students (by sex) exposed to two different learning treatments (male voice in conjunction with projected visuals versus female voice in conjunction with identical ...