Diet and food resource partition among benthic tadpoles of three anuran species in Atlantic Forest tropical streams

Santos, Flávio J.M.; Protazio, Airan; Moura, Carlos Wallace do Nascimento; Juncá, Flora Acuña

doi:10.1080/02705060.2015.1015109

Cited by 17 publications

(12 citation statements)

References 29 publications

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“…Under experimental conditions, they dominated under low pH values (Müller, 1980). They are very abundant in aquatic systems and important in the diets of other trophic levels, such as zooplankton (Liu and Wu, 2016) and tadpoles (Souza-Filho et al, 2007;Santos et al, 2016). Tadpoles can also be opportunistic and exploit nutritious food items that become available to them at different periods or habitats (Petranka and Kennedy, 1999;Schiesari et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

You are what, where, and when you eat: seasonal and ontogenetic changes in a tropical tadpole’s diet

Kloh

Figueredo

2018

Amphib.-Reptilia

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Tadpole diet is likely to vary in response to environmental conditions and nutritional needs throughout growth and development. We investigated seasonal variation in diet composition of Bokermannohyla saxicola tadpoles and compared diets between two developmental stages with a significant difference in size. We found that the diet of B. saxicola tadpoles was dominated by periphytic algae, in accordance with their benthic habits. Considering number of cells ingested, tadpole trophic niches were broader in more advanced developmental stages. Tadpole trophic niches were narrower during the summer (wet season) than during the winter (dry season), which may reflect increased consumption of more energetic food items during the warm period when primary productivity is expected to be higher. Tadpole metabolism is likely to be higher in the summer and increased energetic needs might be supplied in this manner. However, results differed when biovolume was considered instead of number of cells ingested, with larger items assuming a greater importance and niches being usually larger in the summer. In these cases, the increased ingestion of diatoms (likely to be more nutritive) in the summer may decrease the relative importance of large algae (e.g., Mougeotia sp.) that form the bulk of the diet. Both food availability/accessibility and tadpole feeding behaviour driven by nutritional needs may influence patterns of food acquisition. Given the importance of biofilms to tadpole diet, studies on the mechanisms by which tadpole nutritional needs and environmental conditions interact are likely to provide important insights into the dynamics of aquatic food webs.

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Section: Discussionmentioning

confidence: 99%

You are what, where, and when you eat: seasonal and ontogenetic changes in a tropical tadpole’s diet

Kloh

Figueredo

2018

Amphib.-Reptilia

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“…Barrio 1970, De Sá and Lavilla 1997, Kwet 2000, there is little information on the trophic ecology of the larvae (Arias et al 2002, Vera-Candioti 2007. Consequently, little is known about the role species of tadpoles in aquatic environments (Santos et al 2016).…”

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confidence: 99%

What the largest tadpole feeds on? A detailed analysis of the diet composition of Pseudis minuta tadpoles (Hylidae, Dendropsophini)

Huckembeck

Alves

Loebmann

et al. 2016

An. Acad. Bras. Ciênc.

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We analyzed the diet of 25 individuals of Pseudis minuta tadpoles which consisted in debris with more than 30%, follow by diatoms, euglenids, green algae, and desmids. With regard to the feeding strategy, P. minuta tadpoles are generalist consumer. The negative correlation between the abundance of items in the digestive tract and the mouth width indicate an effect of metamorphosis on the diet. key words: algae, anuran, metamorphosis, trophic ecology.

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“…A recent study by Santos, Protazio, Moura, and Junca (2016) on the diet of three benthic species of Neotropical hylids (Aplastodiscus cavicola, Aplastodiscus sibilatus, and Bokermannohyla capra) identified over 1,000 distinct food items distributed across 20 taxonomic categories. This study showed overlap of approximately 16 food categories found in the guts of the three species, with algae and protozoa exhibiting the highest frequencies of occurrence in tadpole diets.…”

Section: Gut Contents Analysismentioning

confidence: 99%

Revisiting “what do tadpoles really eat?” A 10‐year perspective

et al. 2019

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Tadpoles are diverse and abundant consumers, and knowledge of their feeding ecology and trophic status is essential in understanding their functional roles within aquatic habitats. Here we revisit Altig, Whiles, and Taylor (2007)'s paper, which highlighted the knowledge gaps in tadpole feeding ecology and the application of modern techniques, such as stable isotope and fatty acid analyses to better quantify dominant food resources, food assimilation, and the trophic status of tadpoles. We reviewed the ecological studies that have been published since 2007 that used stable isotopes and fatty acid analyses, also metagenomics and ecological stoichiometry analyses. We describe the ecological roles of tadpoles in freshwater ecosystems and identify knowledge gaps regarding tadpole feeding ecology across biogeographic regions. Worldwide declines in amphibian abundance and diversity create an urgent need to document their feeding ecology and trophic status. As consumers, tadpoles play important functional roles in nutrient cycling, energy flow, and bioturbation. They also exhibit context‐dependent trophic plasticity in response to abiotic and biotic gradients, which complicates understanding of their trophic roles. Most studies of tadpole trophic ecology have been conducted primarily on species from the families Ranidae, Bufonidae, and Hylidae from Neotropic and Nearctic regions, while species in tropical regions such as Africa and Asia lack ecological information for tadpoles. There continues to be a need for studies of tadpole diets and/or trophic ecology in Africa and Southeast Asia regions where species endemism is threated by the growth of anthropogenic activities. The majority of studies have focused on trophic ecology of tadpoles from the perspective of single species or at relatively small spatial and temporal scales. Studies that address questions from an ecosystem perspective were scarce, but are critical for conservation and management. Future research should aim to address the role of tadpoles as consumers across broader spatiotemporal scales.

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Diet and food resource partition among benthic tadpoles of three anuran species in Atlantic Forest tropical streams

Cited by 17 publications

References 29 publications

You are what, where, and when you eat: seasonal and ontogenetic changes in a tropical tadpole’s diet

You are what, where, and when you eat: seasonal and ontogenetic changes in a tropical tadpole’s diet

What the largest tadpole feeds on? A detailed analysis of the diet composition of Pseudis minuta tadpoles (Hylidae, Dendropsophini)

Revisiting “what do tadpoles really eat?” A 10‐year perspective

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