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29 results for “Aspidoscelis tigris”
FIGURE 17 in Laboratory Hybridization among North American Whiptail Lizards, Including Aspidoscelis inornata arizonae × A. tigris marmorata (Squamata: Teiidae), Ancestors of Unisexual Clones in Nature
FIGURE 17. Mesonephros of laboratory hybrid
FIGURE 10 in Laboratory Hybridization among North American Whiptail Lizards, Including Aspidoscelis inornata arizonae × A. tigris marmorata (Squamata: Teiidae), Ancestors of Unisexual Clones in Nature
FIGURE 10. Testis, adrenal gland,
FIGURE 4 in Laboratory Hybridization among North American Whiptail Lizards, Including Aspidoscelis inornata arizonae × A. tigris marmorata (Squamata: Teiidae), Ancestors of Unisexual Clones in Nature
FIGURE 4. Three Aspidoscelis of
FIGURE 3 in Laboratory Hybridization among North American Whiptail Lizards, Including Aspidoscelis inornata arizonae × A. tigris marmorata (Squamata: Teiidae), Ancestors of Unisexual Clones in Nature
FIGURE 3. Parents of the Aspidoscelis hybrids
FIGURE 16 in Laboratory Hybridization among North American Whiptail Lizards, Including Aspidoscelis inornata arizonae × A. tigris marmorata (Squamata: Teiidae), Ancestors of Unisexual Clones in Nature
FIGURE 16. The testis of laboratory
Fig. 9 in Hybridization Between the Endangered Unisexual Gray-Checkered Whiptail Lizard (Aspidoscelis dixoni) and the Bisexual Western Whiptail Lizard (Aspidoscelis tigris) in Southwestern New Mexico
Fig. 9. Antelope Pass, Peloncillo Mountains, Hidalgo County, New Mexico. Photo by C.W.P., April 1,
Movement patterns and habitat use for the sympatric species: Gambelia wislizenii and Aspidoscelis tigris
<p><strong>Background</strong>: Movement is an important characteristic of an animal's ecology, reflecting perception of and response to environmental conditions. To effectively search for food, movement patterns likely depend on habitat characteristics and the sensory systems used to find prey. We examined movements associated with foraging for two sympatric species of lizards inhabiting the Great Basin Desert of southeastern Oregon. The two species have largely overlapping diets but find prey via different sensory cues, which link to their differing foraging strategies — the long-nosed leopard lizard, <em>Gambelia wislizenii</em>, is a visually-oriented predator, while the western whiptail, <em>Aspidoscelis tigris</em>, relies more heavily on chemosensory cues to find prey.</p> <p><strong>Methods</strong>: Using detailed focal observations, we characterized the habitat use and movement paths of each species. We placed markers at the location of focal animals every minute for the duration of each 30-min observation. Afterwards, we recorded whether each location was in the open or in vegetation, as well as the movement metrics of step length, path length, net displacement, straightness index, and turn angle, and then made statistical comparisons between the two species.</p> <p><strong>Results</strong>: The visual forager spent more time in open areas, moved less frequently over shorter distances, and differed in patterns of plant use compared to the chemosensory forager. Path characteristics of step length and turn angle differed between species.</p> <p><strong>Conclusions</strong>: The visual predator moved in a way that was consistent with the notion that they require a clear visual path to stalk prey whereas the movement of the chemosensory predator increased their chances of detecting prey by venturing further into vegetation. Sympatric species can partition limited resources through differences in search behavior and habitat use. </p>
Movement patterns and habitat use for the sympatric species: Gambelia wislizenii and Aspidoscelis tigris
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Fig. 10 in Hybridization Between the Endangered Unisexual Gray-Checkered Whiptail Lizard (Aspidoscelis dixoni) and the Bisexual Western Whiptail Lizard (Aspidoscelis tigris) in Southwestern New Mexico
Fig. 10. Relationship between number of A. dixoni C and number of A. tigris punctilinealis found at each of the trap sites at which either A. dixoni or A. t. punctilinealis or both were found in Antelope Pass, Hidalgo County, New Mexico. Of 23 sites (table 6), the two with the most examples of A. dixoni (N 5 55 each) had only one individual of A. t. punctilinealis each, and the rest of the sites with dixoni, except for three, had fewer than 10 punctilinealis each.
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OpenNeuro
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