Summary
An analysis of the foraging behaviors of several species of palatable and unpalatable lepidopterous larvae indicates that palatable caterpillars partition their time between feeding and behaviors that could be related to escape visually oriented predators. Depending on the species, palatable caterpillars do all or several of the following: 1) restrict themselves to the underside of leaves at all times, 2) restrict foraging to night-time, 3) commute to and from their feeding area on leaves, 4) move from the unfinished leaf to a distant leaf after a feeding bout, thus removing themselves from the evidence of their eating, 5) snip off partially-eaten leaves after feeding on them. The less palatable, or unpalatable, caterpillars do not snip off partially-eaten leaves, feed from leaves leaving tattered edges, and are often exposed resting and feeding on the leaf surfaces in direct sunshine. I conclude that some caterpillar foraging behaviors may have evolved under the selective pressure of visually-oriented predators that use leaf-damage as a cue in their searching behavior.
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References
Alcock, J.: Cues used in searching for food by red-winged blackbirds (Agelaius phoeniceus). Behaviour 46, 174–188 (1973)
Casey, T.M.: Activity patterns, body temperatures and thermal ecology in two desert caterpillars (Lepidoptera: Sphingidae). Ecology 57, 485–497 (1976)
Casey, T.M.: Physiological responses to temperature of caterpillars of a desert population of Manduca sexta (Lepidoptera: Sphingidae). Comp. Biochem. Physiol. 57A, 53–58 (1977)
Cerella, J.: Visual classes and natural categories in the pigeon. Human Perc. and Perf. (in press)
Curio, E.: Die Schutzanpassungen dreier Raupen eines Schwärmers (Lepidoptera: Sphingidae) auf Galapagos. Zool. Jb. Syst. 92, 487–522 (1965)
DeRuiter, L.: Some experiments on the camouflage of stick caterpillars. Behavior 4, 223–232 (1952)
Edmunds, M.: Defence in animals: a survey of anti-predator defences. New York: Longman p. 322 (1974)
Heinrich, B.: The effect of leaf geometry on the feeding behavior of the caterpillar Manduca sexta (Sphingidae). Anim. Behav. 19, 119–124 (1971)
Heinrich, B.: Energetics of pollination. Ann. Rev. Ecol. and Syst. 6, 139–170 (1975)
Pyke, G.H., Pulliam, H.R., E.L. Charnov: Optimal foraging theory: A selective review of theory and tests. Quart. Rev. Biol. 52, 137–154 (1977)
Rausher, M.: Search image for leaf shape in a butterfly. Science 200, 1071–1073 (1978)
Ru, N., Kloft, W.J.: Fast absorption and elimination of 32P labelled food in larvae of the cabbage looper, Trichoplusia ni (Lepidoptera: Noctuidae). Entomol. Germ. 2(3), 242–248 (1976)
Schoener, T.W.: Theory of feeding strategies. Ann. Rev. Ecol. and Syst. 2, 369–404 (1971)
Sherman, P.W., Watt, W.B.: The thermal ecology of some Colias butterflies. J. comp. Phys. 83, 25–40 (1973)
Thurston, R., Prachuabmoh, O.: Predation by birds on tobacco hornworm larvae infesting tobacco. J. Econ. Ent. 64(6), 1548–1549 (1971)
Young, A.M.: Adaptive strategies of feeding and predator-avoidance in the larvae of the neotropical butterfly, Morpho peleides limpida (Lepidoptera: Morphidae). J.N.Y. Ent. Soc. 80, 60–82 (1972)
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Heinrich, B. Foraging strategies of caterpillars. Oecologia 42, 325–337 (1979). https://doi.org/10.1007/BF00346597
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DOI: https://doi.org/10.1007/BF00346597