Download e-book for kindle: Anolis Lizards of the Caribbean: Ecology, Evolution, and by Jonathan Roughgarden

By Jonathan Roughgarden

ISBN-10: 0195067312

ISBN-13: 9780195067316

ISBN-10: 1423764420

ISBN-13: 9781423764427

The Anolis lizards of the Caribbean are excellent for the research of evolutionary ecology. supplying interesting insights into the greater than one hundred fifty species dispersed in the course of the Caribbean islands, Jonathan Roughgarden info the diversities among species in a variety of behavioral and actual features, together with foraging behaviors, physique dimension, and habitat use, due to evolutionary divergences concurrent with the plate-tectonic origins of the quarter. This booklet might be of curiosity to scholars and researchers--ecology and theoretical, tropical, and inhabitants biology.

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Extra info for Anolis Lizards of the Caribbean: Ecology, Evolution, and Plate Tectonics (Oxford Series in Ecology and Evolution)

Example text

1 Distance in meters of prey from lizard in consecutive episodes (prey sightings). A vertical rule is drawn to any prey that is pursued. The optimal prey cutoff distance is shown as a horizontal dashed line. An "optimal forager" does not pursue prey farther than the dashed line. Illustration shows that the lizard's decisions approach optimality as time passes, indicating the effect of learning and experience. By the 60th episode, the lizard has learned where the optimal cutoff is and makes no further mistakes.

Bimaculatus is about 85 mm, compared with about 50 rnm for A. schwartzi. Perch heights The St. Eustatius species also differ in where they characteristically perch in the vegetation. 12 illustrates the distribution of perch heights [297]. The larger A. bimaculatus generally perches above the smaller A. schwartzi. In practice, one tends to locate A. bimaculatus individuals by looking up, often into the canopy, and individuals of A. schwartzi by looking down, often on leaf litter and rocks. Our studies have shown that body size and perch height are the only major differences between these species.

0 mm. 24 • The sentient forager Fig. 2 Prey abundance, a1, expressed as insects appearing per m2 per s, as a function of the number of insects trapped per m2 per 12 h. Fig. 13 The net energy content of an insect, e\, in joules as a function of its body length in mm. Energy as a criterion • 25 Fig. 4 The maximum speed of a lizard, v, in m/s at 30°C as a function of its snout-vent length in mm. Fig. 5 The energy expended by a lizard while waiting for prey to appear, ew, in joules/s as a function of its snout-vent length in mm.

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Anolis Lizards of the Caribbean: Ecology, Evolution, and Plate Tectonics (Oxford Series in Ecology and Evolution) by Jonathan Roughgarden


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