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Mimicry of vertebrates: are the rules different?
(University of Chicago Press: American Naturalist, 1988-06)
Examples of mimicry among vertebrates are numerically fewer than examples involving insects. The relatively small number of species of vertebrates, compared with the number of species of insects, probably explains some of ...
The ecological cost of morphological specialization: feeding by a fossorial lizard
(Springer: Oecologia, 1987-08)
Head size and shape of reptiles may reflect selection for multiple uses. For example, sexual selection for large head size may enhance feeding efficiency. In contrast, morphological characteristics of the heads of fossorial ...
The abundance of salamanders in forest stands with different histories of disturbance
(Elsevier: Forest Ecology and Management, 1987-07)
Because of the importance of salamanders in forest food chains, the effects of forest management practices on populations of these animals warrant consideration. We compared the numbers and activity patterns of salamanders ...
Energy costs of subduing and swallowing prey for a lizard
(The Ecological Society of America: Ecology, 1985-10)
We measured the oxygen consumption (aerobic energy cost) and lactic acid production (anaerobic energy cost) of scincid lizards, Chalcides ocellatus, eating domestic crickets. Aerobic metabolism accounted for 90% or more ...
Metabolic correlates of anuran behavior
(Oxford University Press: American Zoologist, 1985)
Frogs exhibit extensive diversity in their repertoires of social, reproductive, defensive, and predatory behavior, and in the metabolic processes that support these activities. Three aspects of anuran biology (foraging ...
Diploid and tetraploid grey treefrogs (Hyla chrysoscelis and Hyla versicolor) have similar metabolic rates
(Elsevier: Comparative Biology and Physiology A, 1985)
We measured oxygen consumption of the diploid frog Hyla chrysoscelis and its recently evolved tetraploid cryptic species Hyla versicolor at rest and during forced locomotory exercise. We also measured whole-body lactic ...
Post-metamorphic change in activity metabolism of anurans in relation to life history
(Springer: Oecologia, 1984-12)
Newly-metamorphosed individuals of some species of frogs and toads differ from adults in behavior, ecology, and physiology. These differences may be related to broader patterns of the life histories of different species ...
Response to simultaneous dehydration and thermal stress in three species of Puerto Rican frogs
(Springer: Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 1984-11)
The response to simultaneous temperature and dehydration stress was examined in three species of Puerto Rican frogs. Eleutherodactylus antillensis is found primarily in hot, arid grasslands at low altitudes. Eleutherodactylus ...
Male parental care and its adaptive significance in a neotropical frog
(Elsevier: Animal Behaviour, 1984-05)
In the Puerto Rican frog Eleutherodactylus coqui, parental care is performed exclusively by males, and consists of attending the eggs and hatchlings at a terrestrial oviposition site. The two major behavioural components ...
Water balance of terrestrial anuran (Eleutherodactylus Coqui) eggs: importance of parental care
(The Ecological Society of America: Ecology, 1984-02)
The terrestrial eggs of the coqui of Puerto Rico are brooded almost continuously by the male parent from the time of oviposition until the fully metamorphosed hatchlings emerge from the eggs 15-20 d later. The gelatinous ...