Carl Lieb

Carl Lieb
University of Texas at El Paso | UTEP · Department of Biological Sciences

Ph.D.

About

35
Publications
3,829
Reads
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479
Citations
Citations since 2016
6 Research Items
144 Citations
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
Additional affiliations
January 1981 - present
University of Texas at El Paso
Position
  • Professor

Publications

Publications (35)
Preprint
Full-text available
Geographically widespread species that occupy many thermal environments provide testable models for understanding the evolution of life-history responses to latitude, yet studies that draw range-wide conclusions using descriptive data from populations in the core of a species distribution can overlook meaningful inter-population variation. The phry...
Article
Full-text available
Biodiversity hotspots, which harbor more endemic species than elsewhere on Earth, are increasingly threatened. There is a need to accelerate collection efforts in these regions before threatened or endangered species become extinct. The diverse geographical, ecological, genetic, morphological, and behavioral data generated from the on-site collecti...
Data
The raw scored data obtained from the tissue evaluations of three independent raters, in Microsoft Excel format. (XLSX)
Data
Original R script for our statistical analysis, in Microsoft Word format. (DOCX)
Preprint
Full-text available
Biodiversity hotspots, which harbor more endemic species than elsewhere on Earth, are increasingly threatened. There is a need to accelerate collection efforts in these regions before threatened or endangered species become extinct. The diverse geographical, ecological, genetic, morphological, and behavioral data generated from the on-site collecti...
Conference Paper
Background/Question/Methods Although many studies have documented roadkills among different taxa, less work has been done to determine how this road-related mortality affects abundance and survival in near-road populations. Studies have also recently begun investigating how species-specific behavior influences road-mortality rates. Animals that b...
Data
Full-text available
Supplementary Figure 1. DNA alignment of fourteen C. s. scutulatus metalloproteinase genomic DNA sequences. The assignment of exon and intron (underlined) regions were identified by comparing the metalloproteinase cDNA sequences from C. atrox [7] and A. contortrix [11, 31-33] with the C. s. scutulatus metalloproteinase genomic DNA sequences obtaine...
Article
Full-text available
We studied type material and freshly collected topotypical specimens to assess the taxonomic status of five names associated with species of Mexican Anolis. We find A. schmidti to be a junior synonym of A. nebulosus, A. breedlovei to be a junior synonym of A. cuprinus, A. polyrhachis to be a junior synonym of A. rubiginosus, A. simmonsi to be a jun...
Article
Full-text available
The metalloproteinase composition and biochemical profiles of rattlesnake venom can be highly variable among rattlesnakes of the same species. We have previously shown that the neurotoxic properties of the Mojave rattlesnake (Crotalus scutulatus scutulatus) are associated with the presence of the Mojave toxin A subunit suggesting the existence of a...
Conference Paper
Background/Question/Methods Roads can potentially impact wildlife populations in several negative ways, such as decreasing population sizes and individual survival rates or by acting as barriers to dispersal. Here we report initial findings from a 2-year study on how roads affect populations of side-blotched lizards (Uta stansburiana) and western...
Conference Paper
Background/Question/Methods Roads can potentially impact wildlife populations in several negative ways, such as deceasing population vital rates and acting as barriers to dispersal. Here we report preliminary findings on how roads are impacting populations of two common lizard species in the northern Chihuahuan Desert, side-blotched lizards (Uta s...
Article
Complement inactivating properties were detected in venom from the southern California distribution of Crotalus oreganus helleri (Southern Pacific Rattlesnake). This activity showed strong geographic bias to the San Bernardino Mountain range, and venom from this area reacted strongly with Fraction 5 antiserum (AF5). However, venoms from the San Jac...
Article
A formative assessment pretest was administered to undergraduate students at the beginning of a science course in order to find out their prior knowledge, misconceptions and learning difficulties on the topic of the human respiratory system and energy issues. Those findings could provide their instructors with the valuable information required in o...
Article
Full-text available
Previous toxicological and immunology assays have strongly suggested that a neurotoxic component is present in the venom of the Tiger Rattlesnake, Crotalus tigris. However, there has been no direct identification of this neurotoxin. We obtained 18 blood samples from Arizona C. tigris and analyzed them by PCR and DNA sequencing using primers specifi...
Article
Full-text available
The venom composition of Mojave rattlesnakes (Crotalus scutulatus scutulatus) differs in that some individuals have Mojave toxin and others do not. In order to understand the genetic basis for this difference, genomic DNA samples from Mojave rattlesnakes collected in Arizona, New Mexico, and Texas were analyzed for the presence of DNA sequences tha...
Article
We describe here an interdisciplinary lab science course for non-majors using the history of science as a curricular guide. Our experience with diverse instructors underscores the importance of the teachers and classroom dynamics, beyond the curriculum. Moreover, the institutional political context is central: are courses for non-majors valued and...
Article
In this study we explore how various treatments of a small isozyme data set may be used to generate phylogenetic hypotheses for comparison with the results of allozyme analysis involving some of the same taxa. The isozyme data were collected from various tissue samples representing eight species of four genera of Australian chelid turtles: Chelodin...
Article
Data on the expression of a duplicated superoxide dismutase locus are presented for 41 species in the lizard genus Anolis. Expression of a single locus in these forms has resulted from several loss (silencing) events, and is regarded as a derived condition from the primitive duplicated state. There is apparent consistency in the presence or loss of...
Article
Full-text available
Venom from 72 different Crotalus molossus molossus rattlesnakes was examined for fibrinolysis and for their ability to inactivate human complement. The fibrinolytic activity of the venoms was variable, but smaller (younger) snakes had less fibrinolytic activity than larger (older) snakes. Major differences between the venoms was detected by isoelec...
Article
Venom alkaline phosphatase was detected using a blotting method following electrophoresis. The enzyme gave strong reactions in some venoms, but was absent in other venoms, some within the same species. The mol. wt of the enzyme is close to 100,000 and its pI is between 3.6 and 4.8. The enzyme was inactivated by EDTA and 2-mercaptoethanol, and lost...
Article
1. The venoms of two Mojave rattlesnakes and those of their offsprings were analyzed for Mojave toxin and hemorrhagic toxin. 2. The venom of one female, collected in Pima County, Arizona, and the venoms of her six offspring contained hemorrhagic toxin but not Mojave toxin (venom B). 3. The venom of the second female, captured in El Paso County, Tex...
Article
As a preliminary investigation into intra-population variation in venom proteins in the prairie rattlesnake, Crotalus v. viridis, we analyzed a small number (11) of venom samples from extreme western Texas and adjoining New Mexico by electrophoresis and Western blotting methods. A monoclonal antibody raised against hemorrhagic toxin in C. atrox ven...
Article
Venoms from 31 specimens of the Mojave rattlesnake (Crotalus scutulatus scutulatus) were examined to further characterize reported differences among venoms of this species. Twenty-two venoms were recognized by a monoclonal antibody to Mojave toxin, CSS12. Nine venoms were recognized by CA-P-8, a monoclonal antibody produced against the hemorrhagic...
Article
The distributional status, and patterns of external and genetic variation in Elaphe bairdi are reviewed and compared with Elaphe obsoleta. Low-level hybridization between the two taxa, as inferred from morphological criteria, is confined to a distinct geographic and ecological region in central Texas. The two parapatric taxa are otherwise morpholog...
Article
Full-text available
The creatine kinases of amphibians and reptiles are evaluated in terms of their genetic variability beyond that of allelic differentiation. One character, the number of loci controlling creatine kinase, is invariant; all investigated species express two loci (Ck-A and Ck-C). Amphibians and reptiles vary in their tissue specificity of creatine kinas...
Article
An electrophoretic comparison was made between Anolis carolinensis from Texas and Georgia and Anolis porcatus from Cuba. At five of 35 presumptive gene loci the Cuban population may be distinguished from the North American population. The Nei genetic distance (D) estimate between the Cuban and North American populations is 0.165 which is slightly a...
Article
For the past three years, a herpetofaunal study of an ecological transect through the eastern front range of the Sierra Madre Oriental has been conducted in the Mexican states of San Luis Potosí and Querétaro. The transect passes through tropical deciduous, semi-cloud, pine-oak, dry oak and desert scrub forests within the first 65 kilometers, trans...
Article
Thesis (Ph. D.)--University of California, Los Angeles, 1981. Vita. Includes bibliographical references (leaves 298-308). Microfilm of typescript. s

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