Experimental studies of asymmetric competition among anurans

TY - JOUR

T1 - Experimental studies of asymmetric competition among anurans

AU - Morin, P. J.

AU - Johnson, E. A.

PY - 1988

Y1 - 1988

N2 - Manipulation of the densities of larval Hyla crucifer and Rana sylvatica shows that they compete asymmetrically. The competitive superiority of R. sylvatica was correlated with its larger body size, faster growth, greater per capita competitive impact on conspecifics, and greater reduction in the availability of a trophic resource, periphyton. Experiments where Hyla tadpoles were grown in water conditioned by different densities and species of tadpoles provided no evidence that the observed asymmetric competition involves interference via growth inhibitors. Instead, the asymmetric interspecific competition is consistent with different impacts of species of intraspecific competition. -from Authors

AB - Manipulation of the densities of larval Hyla crucifer and Rana sylvatica shows that they compete asymmetrically. The competitive superiority of R. sylvatica was correlated with its larger body size, faster growth, greater per capita competitive impact on conspecifics, and greater reduction in the availability of a trophic resource, periphyton. Experiments where Hyla tadpoles were grown in water conditioned by different densities and species of tadpoles provided no evidence that the observed asymmetric competition involves interference via growth inhibitors. Instead, the asymmetric interspecific competition is consistent with different impacts of species of intraspecific competition. -from Authors

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U2 - https://doi.org/10.2307/3565542

DO - https://doi.org/10.2307/3565542

M3 - Article

VL - 53

SP - 398

EP - 407

JO - Oikos

JF - Oikos

SN - 0030-1299

IS - 3

ER -