Asymmetric competition between Rana clamitans and Hyla versicolor tadpoles
Article Abstract:
A laboratory experiment was performed to investigate the outcome of potential competitive interactions between tadpoles of the green frog (Rana clamitans) and the gray treefrog (Hyla versicolor), and to examine the factors that may explain the outcome of the interaction. It was found that the Hyla versicolor tadpoles were more affected by intraspecific competition whereas R. clamitans tadpoles were more affected by interspecific competition.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2004
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Responses to competition effects of two anuran tadpoles according to life-history traits
Article Abstract:
Experimental manipulations of the densities of two larval anurans, Pelodytes punctatus and Bufo bufo, showed that these species compete asymmetrically in semi-natural conditions. In the interspecific treatments, Bufo individuals modified their behavior by increasing activity and use of the water column while Pelodytes did not change their foraging activity or space use in the aquaria.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2004
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Metamorphic synchrony and aggregation as antipredator responses in American toads
Article Abstract:
The exhibition of higher levels of aggregation by Bufo americanus tadpoles in the presence of a predator is described. The synchronized metamorphosis of Bufo americanus on exposure to predator chemical cues is examined.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2003
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