Responses of Foothill Yellow-legged Frog (Rana boylii) Larvae to an Introduced Predator

Autor:	David J. Paoletti, Andrew R. Blaustein, Deanna H. Olson
Rok vydání:	2011
Předmět:	Amphibian animal structures genetic structures Speckled dace biology Ecology Micropterus Introduced species Aquatic Science biology.organism_classification Rana boylii Predation biology.animal Taricha Animal Science and Zoology Predator Ecology Evolution Behavior and Systematics
Zdroj:	Copeia. 2011:161-168
ISSN:	1938-5110 0045-8511
Popis:	The consequences of species introductions into non-native habitats are a major cause for concern in the U.S. Of particular interest are the effects of predation by introduced fishes on native amphibian communities. We sought to determine whether Foothill Yellow-legged Frog (Rana boylii) larvae could recognize non-native Smallmouth Bass (Micropterus dolomieu) as a predatory threat. Through a series of laboratory experiments, we examined the initial and overall behavioral responses of larvae to native predators (Rough-skinned newts, Taricha granulosa), introduced predators (M. dolomieu), and native non-predatory fish (Speckled Dace, Rhinichthys osculus). Each experiment examined a different potential mode of detection including chemical cues; visual cues; or a combination of chemical, visual, and mechanical cues. Initially, larvae of R. boylii responded with an increase in activity levels when exposed to visual cues of M. dolomieu. Analyses of overall responses suggested that individual larvae of R. boylii ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cf27ec34e5862f7821b5d619dcef9e28 https://doi.org/10.1643/ce-09-170 Zobrazit plný text záznamu Plný text ve formátu PDF