NDLI: Food habits of an endangered Japanese frog, Rana porosa brevipoda

Content Provider	Springer Nature Link
Author	Hirai, Toshiaki Matsui, Masafumi
Copyright Year	2001
Abstract	We examined the diet of an endangered frog, Rana porosa brevipoda inhabiting rice fields of western Japan, by forced regurgitation of stomach contents. The frog diet consisted of a wide variety of arthropods, and ants, beetles, dipterans, bugs, orthopterans, and spiders, which were especially prominent. These prey taxa were also collected in large numbers by sweep-net samplings made in the frog habitat, and relative abundances of prey taxa in frog diet and those in sweep samples were found to be significantly correlated. Aquatic forms did not contribute much to the frog diet, but were found to be taken more frequently and in larger numbers in irrigated fields than in drained fields. These findings suggest that prey availability around frog habitat is very important to regulate the food items of R. p. brevipoda. On the other hand, terrestrial components of frog habitats are indicated to be important because the frog highly depended on terrestrial invertebrates. From these results, we consider it imperative to preserve terrestrial components linked with aquatic environments to conserve biodiversity in rice field ecosystems.
Starting Page	737
Ending Page	743
Page Count	7
File Format	PDF
ISSN	09123814
Journal	Ecological Research
Volume Number	16
Issue Number	4
e-ISSN	14401703
Language	English
Publisher	Springer-Verlag
Publisher Date	2001-01-01
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	endangered frog food analysis Rana porosa brevipoda rice field ecosystems wildlife conservation Behavioural Sciences Ecology Evolutionary Biology Forestry Plant Sciences Zoology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

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