Download Lizard Ecology by Lance B. McBrayer (Editor), Donald B. Miles (Editor) PDF
By Lance B. McBrayer (Editor), Donald B. Miles (Editor) Stephen M. Reilly (Editor)
The foraging mode of lizards has been a vital subject matter in guiding learn in lizard biology for 3 a long time. Foraging mode has been proven to be a pervasive evolutionary strength molding the nutrition, ecology, habit, anatomy, biomechanics, lifestyles background and body structure of lizards. This quantity studies the country of our wisdom at the results of foraging mode on those and different organismal structures to teach how they've got developed, over a large taxonomic survey of lizard teams. The stories awarded right here demonstrate the continual nature of foraging suggestions in lizards and snakes, supplying the reader with an up to date assessment of the sector, and may equip researchers with new insights and destiny instructions for the sit-and-wait vs. extensive foraging paradigm. it will function a reference publication for herpetologists, evolutionary biologists, ecologists and animal behaviorists.
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Despite this, it was first mathematically studied in the context of military operations (Koopman, 1956, in Gerritsen and Strickler, 1977). In biology, this issue was not quantitatively addressed until two decades later. Studying zooplankton, Gerritsen and Strickler (1977) asked what tactics would best allow predators to obtain nourishment. Two optimal strategies emerged from their theoretical analysis: a stationary predator feeding on 1 Movement patterns in lizards 33 roving prey, and a mobile predator that specialized on slow-moving prey.
1999, 2000). I have collected two datasets on widespread taxa experiencing a variety of ambient conditions. To test the hypothesis that foraging behavior will be intraspecifically labile, I studied the foraging behavior of multiple populations of Anolis cristatellus in the British Virgin Islands from 1993 to 1996. The resulting database encompasses 630 individuals from 16 islands. To assess the overall importance of year and island identity on MPM and PTM values, I used a two-way ANOVA. Although some differences are immediately apparent among islands in average values of MPM and PTM, variability is high at all of them (Fig.
I recommend that future studies use observation periods of ten minutes or more per individual whenever possible. (3) Quantitative metrics are superior to qualitative ones for describing lizard foraging behaviors. The number of moves per minute and the percent of time spent moving are both useful quantitative metrics that have often been reported. Additional metrics, such as PAM, have been proposed, but the available data are too few to evaluate their biological usefulness. 42 G. Perry The second section of this chapter details three tests of hypotheses proposed over the years in the context of lizard foraging behaviors, their distributions, and their putative correlates.