+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Competitive interactions and distributional dynamics in two Malagasy frogs

Competitive interactions and distributional dynamics in two Malagasy frogs

Journal of Tropical Ecology 21(5): 569-576

Ecological theory predicts that interspecific interactions can affect population and community dynamics. Two experiments were conducted on Mantidactylus bicalearatus and M. punctatus, two sympatric frog species from Madagascar that live and breed in rain-forest plants (Pandanus spp.), to test for interspecific competition. The first experiment examined larval growth rates and survivorship with and without conspecifics. While survivorship did not differ among treatments, mean growth rates for M. bicalearatus were significantly reduced in the presence of M. punctatus larvae. The second experiment manipulated the presence and density of adults in Pandanus plants. Emigration from and immigration to experimental plants tended to be higher and lower, respectively, for M. bicalcaratus in the presence of M, punctatus, but these differences were not significant. These results demonstrate asymmetric competition (at least as larvae) and indicate that M. punctatus is the superior competitor. Field data showed that M. bicalcaratus was found significantly more frequently in the absence of M. punctatus. Also, M. bicalearatus populations were significantly more likely to go locally extinct in the presence of M. punctatus. These data suggest that asymmetric competitive interactions are important influences on the dynamics of these populations.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 004084137

Download citation: RISBibTeXText

DOI: 10.1017/s0266467405002580

Related references

Competitive Interactions and Distributional Dynamics in Two Malagasy Frogs. Journal of Tropical Ecology 21(5): 569-576, 2005

Reproductive strategies, breeding, and conservation of tropical frogs: dart-poison frogs and Malagasy poison frogs. Contributions to Herpetology 11: 255-266, 1994

Competitive Interactions between Cricket Frogs (Acris blanchardi) and Other Anurans. Herpetologica 71(4): 260-267, 2015

Competitive Interactions in PhytotelmataBreeding Pools of Two Poison-Dart Frogs (Anura: Dendrobatidae) in Costa Rica. Journal of Herpetology 45(4): 438-443, 2011

Biosystematics of the Malagasy frogs 1 Mantellinae Ranidae. Beaufortia 29352: 1-77, 1979

On selection dynamics for competitive interactions. Journal of Mathematical Biology 63(3): 493-517, 2011

Molecular phylogeny and biogeography of Malagasy frogs of the genusGephyromantis. 2011

Bio systematics of the malagasy republic frogs 1. mantellinae ranidae. Beaufortia 28(352): 1-77, 1979

Comparative chromosome morphology of Malagasy poison frogs. Folia Zoologica 47(3): 197-204, 1998

Karyological evolution and systematics of Malagasy microhylid frogs. Zoologischer Anzeiger 246(1): 23-41, 2007

Nine microsatellite loci for the Malagasy poison frogs Mantella. Conservation Genetics Resources 1(1): 269-271, 2009

On endemic Malagasy frogs (Ranidae, Rhacophoridae and Hyperoliidae). Monitore Zoologico Italiano Suppl.o 151(2): 217-224, 1981

Bio systematics of the malagasy frogs 2. the genus boophis rhacophoridae. Bijdragen tot de Dierkunde 49(2): 261-312, 1979

High mitochondrial diversity within and among populations of Malagasy poison frogs. Molecular Phylogenetics and Evolution 30(2): 295-307, 2004

Molecular phylogeny and biogeography of Malagasy frogs of the genus Gephyromantis. Molecular Phylogenetics and Evolution 62(1): 555-560, 2012