Predator-prey size interaction in tropical ponds

Gascon, Claude

doi:10.1590/s0101-81751989000400016

Cited by 11 publications

(7 citation statements)

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“…Predator effects on community organization include distributional records of non-overlapping occurrences (Smith 1983;Bradford 1989;Gascon 1989;Kvitek ei al. 1992), experimental evidence of behavioural modifications by prey to the presence of predators (Werner et al 1983;Kerfoot & Sih 1987;Resetarits & Wilbur 1989;Petranka & Fakhoury 1991;Flecker 1992a;Sih et al 1992;Suhonen 1993), and complex suites of direct and indirect effects (Paine 1966;Wilbur et al 1983;Kerfoot & Sih 1987;Flecker 1992b;Gascon 1992;Woodman & Price 1992;Wissinger & McGrady 1993;Spiller & Schoener 1994;Wootton 1994).…”

Section: Introductionmentioning

confidence: 99%

Direct and indirect effects of predation on tadpole community structure in the Amazon rainforest

Hero

Gascon

Magnusson

1998

Australian Journal of Ecology

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The relationship between the distribution of predators (fish, odonates and water beetles) and prey assemblages (amphibian larvae) was investigated in the tropical rainforest of central Amazonas, Brasil. The anuran community uses a variety of waterbodies for reproduction, ranging from streams and streamside ponds to isolated forest ponds. Predators in this system include fish in streams and streamside ponds, and invertebrates (primarily odonate naiads and beetles) in forest ponds. Tadpole species richness and assemblage structure were related to fish density and species richness. No relationships between tadpole assemblages and abiotic pond characteristics were detected. The presence offish explained much ofthe variation in both species composition and species richness within and among ponds. Some species of tadpole were consistently found to coexist with high densities of fish. Path analyses suggest that while fish have a strong direct effect on tadpole associations and species richness, they also have an indirect effect through invertebrate predators (odonate larvae and coleopteran beetles). Prey survival-strategies such as palatabilit>' and behaviour may explain how tadpole species composition is affected by predators at the community level. These findings suggest that the observed patterns of habitat use by larval anurans may be structured in response to the distribution of key predators (fish) in this system.

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Section: Introductionmentioning

confidence: 99%

Direct and indirect effects of predation on tadpole community structure in the Amazon rainforest

Hero

Gascon

Magnusson

1998

Australian Journal of Ecology

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“…In a study in a savanna enclave in the Amazon forest, Azevedo-Ramos et al (1999) found that tadpoles co-occurred more frequently with predaceous invertebrates than with fishes, yet fishes were the main predators influencing species composition in tadpole communities, a result also found in other studies Kats et al 1988;Semlitisch e Gibbons, 1988;Gascon, 1992;Hero et al, 1998;Smith et al, 1999; but see Gascon, 1989). In the present study, predaceous fish were absent, what could account for the absence of correlation at the assemblage level.…”

Section: Discussionsupporting

confidence: 76%

Uso de recursos e padrão de co-ocorrência com insetos predadores em comunidades sub-tropicais de girinos

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“…Heyer et al 1975, Hero et al 1998, Azevedo-Ramos et al 1999, Hero et al 2001, tadpole species that are not susceptible to predation by fish demonstrated susceptibility to predation by invertebrates (Azevedo-Ramos & Magnusson 1999). Indeed, microcosm experiments showed that invertebrate predators, such as aeshnid and libelulid naiads, were comparatively more effective than fishes (Gascon 1989(Gascon , 1992b. Invertebrate predators use to be more common in ponds than fishes, which in turn are more abundant in lotic systems (Gascon 1989(Gascon , 1992b.…”

Section: Biotic Factorsmentioning

confidence: 99%

“…Indeed, microcosm experiments showed that invertebrate predators, such as aeshnid and libelulid naiads, were comparatively more effective than fishes (Gascon 1989(Gascon , 1992b. Invertebrate predators use to be more common in ponds than fishes, which in turn are more abundant in lotic systems (Gascon 1989(Gascon , 1992b. Therefore, the assemblages of tadpoles are exposed to a greater diversity of invertebrate predators in temporary than in permanent ponds (Azevedo-Ramos et al 1999, Both et al 2009).…”

Section: Biotic Factorsmentioning

confidence: 99%

“…Adult reproductive phenology can favor early breeding species through priority effects. For particular species, larger tadpoles from cohorts that first colonized the water body may have advantages over younger cohorts, negatively affecting their fitness (e.g., growth rate, survival) (Gascon 1989, 1992a, Gonzales et al 2011. So, priority effects, and consequently adult reproductive phenology can directly interfere in tadpole assemblages since those species that primarily colonized the aquatic habitat are favored and represent potential sources of risk for late breeders.…”

Section: Temporal Variationsmentioning

confidence: 99%

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T Ropical Tadpole Assemblages: Which Factors Affect Their Structure and Distribution?

Júnior

Rocha

2013

Oecol. Austr.

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Tropical tadpoles may occur in a range of aquatic habitats, from tree holes (e.g., fitolimns), to permanent ponds and streams. Thus, tadpoles are exposed to a different sort of biotic and abiotic factors, according to the habitat they develop, and these factors may also vary over time. What are these factors? What are their relevance for the distribution of tadpole species and local assemblages? How do they affect the structure of tadpole assemblages? In this review, we explore these questions and recognize some trends regarding the factors influencing tropical tadpole assemblages. We can recognize at least nine major trends regarding the distribution and structure of tropical tadpole assemblages: (1) stream size and microhabitat diversity are important abiotic features influencing species richness and composition; (2) in ponds, the permanence gradient (e.g., hydroperiod), and the heterogeneity of habitat are the main factors modeling tropical tadpole assemblages; (3) species composition seems to be a more relevant assemblage parameter than species richness and should be first considered when planning conservation of both pond and stream-dwelling anurans; (4) predation seems to be the most important biotic interaction structuring tropical tadpole assemblages, with vertebrate predators (e.g., fishes) being more voracious in permanent habitats, while invertebrates (e.g., odonate naiads) are the most important in temporary ones; (5) tadpoles may play a regulatory effect preying upon anuran eggs and recently hatched tadpoles (6) microhabitat use varies in function of breeding habitat choice by adults, presence of predators, phylogeny, stage of development and heterogeneity of the habitat; (7) historical factors restrict the breeding habitats that species may use, and impose behavioral and physiologic constrains; (8) temporal variation in biotic (e.g., risk factors) and abiotic factors (e.g., rainfall distribution), and the reproductive patterns of the species may interfere in the structure of tropical tadpole assemblages, and (9) food resource partitioning in tadpole assemblages may both be or not linked to microhabitat occupation, feeding behavior, and morphology. Future efforts regarding the study of tadpoles should contemplate assemblages associated with streams, and experimental studies. Keywords: Tadpole assemblage structure; historical factors; biotic factors; habitat structure; microhabitat use. RESUMO ASSEMBLEIAS DE GIRINOS TROPICAIS: QUAIS FATORES AFETAM SUA ESTRUTURA E DISTRIBUIÇÃO?Os girinos tropicais ocorrem em uma variedade de habitats aquáticos. Os girinos são expostos a diferentes conjuntos de fatores (bióticos, abióticos), de acordo com o habitat em que vivem, os quais também podem variar temporalmente. Quais são esses fatores? Qual a sua relevância sobre a distribuição das assembleias de girinos? Como eles afetam a sua organização? Nesta revisão, exploramos essas questões e reconhecemos algumas tendências associadas aos fatores que influenciam as assembleias de girinos tropicais. Podemos reconhecer p...

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Predator-prey size interaction in tropical ponds

Abstract: An experiment was set-up

Cited by 11 publications

References 10 publications

Direct and indirect effects of predation on tadpole community structure in the Amazon rainforest

Direct and indirect effects of predation on tadpole community structure in the Amazon rainforest

Uso de recursos e padrão de co-ocorrência com insetos predadores em comunidades sub-tropicais de girinos

T Ropical Tadpole Assemblages: Which Factors Affect Their Structure and Distribution?

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