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Title: Ant Specialization in Diet of the Narrow-mouthed Toad, Microhyla ornata, from Amamioshima Island of the Ryukyu Archipelago
Authors: HIRAI, TOSHIAKI
MATSUI, MASAFUMI
Author's alias: 松井, 正文
Keywords: Microhyla ornata
Ant-specialists
Prey availability
Ryukyu Archipelago
Gape-limited predator
Issue Date: Jun-2000
Publisher: Herpetological Society of Japan
Journal title: Current Herpetology
Volume: 19
Issue: 1
Start page: 27
End page: 34
Abstract: Microhyla ornata consumed numerous ants, representing 77. 1% in number and 44. 6% in volume of the diet. The toad took ants in higher proportion than were present in the surrounding environment, and therefore, could be viewed as an ant specialized predator. Ants were the most numerously consumed prey in both spring and summer, while beetles and woodlice were less frequently taken in summer. Females have a larger body and wider mouth than males, and consumed significantly larger prey in maximum size than did males. However, mean prey size, and frequencies of occurrence for all prey taxa did not differ significantly between the sexes. These results suggest that the sexes do not differ in their use of food resources despite their morphological differences.
Rights: © 2000 by The Herpetological Society of Japan
URI: http://hdl.handle.net/2433/216867
DOI(Published Version): 10.5358/hsj.19.27
Appears in Collections:松井 正文

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