Evidence map›Paper›PMID 39242681›Full record

Articlenpj biodiversity2023

Global shortfalls of knowledge on anuran tadpoles.

Florencia Vera Candioti, Diego Baldo, Stéphane Grosjean, Martín O Pereyra, Javier Nori

Abstract read
In one paragraph

Article in npj biodiversity, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Review
  2. Biodiversity conservation requires consideration of different life history stages.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Article
  4. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Florencia Vera CandiotiUnidad Ejecutora Lillo (Consejo Nacional de Investigaciones Científicas y Técnicas-Fundación Miguel Lillo), 4000, San Miguel de Tucumán, Argentina. florivc@gmail.com.
Diego BaldoLaboratorio de Genética Evolutiva "Claudio Juan Bidau", Instituto de Biología Subtropical (CONICET-Universidad Nacional de Misiones) and Facultad de Ciencias Exactas Químicas y Naturales (UNaM), 3300, Posadas, Argentina.
Stéphane GrosjeanDirection Générale Déléguée aux Collections, Muséum national d'Histoire naturelle, 75005, Paris, France.
Martín O PereyraLaboratorio de Genética Evolutiva "Claudio Juan Bidau", Instituto de Biología Subtropical (CONICET-Universidad Nacional de Misiones) and Facultad de Ciencias Exactas Químicas y Naturales (UNaM), 3300, Posadas, Argentina.
Javier NoriInstituto de Diversidad y Ecología Animal (CONICET) and Centro de Zoología Aplicada (Universidad Nacional de Córdoba), 5000, Córdoba, Argentina. javiernori@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite the amount of data on different aspects of biodiversity, such as species distributions, taxonomy, or phylogenetics, there are still significant gaps and biases in the available information. This is particularly true for life history traits, with fragmentary data for most taxa, especially those with complex life cycles. Anurans (frogs and toads) show larval (premetamorphic) stages that are in general radically decoupled from adult forms in most biological aspects. Our understanding of this group is highly uneven, as the main wide-scope investigations focus on adult specimens and larval stages remain unknown for a significant part of the anuran tree. The main purpose of this work was to estimate the extent of knowledge gaps regarding the diversity of tadpoles, interpret their biological and geographical patterns, and discuss possible explanations and implications for other large-scale analyses. Our findings show that more than half of the anuran species described to date still lack information on their embryonic/larval stages. Furthermore, knowledge varies among taxonomic groups, larval ecomorphological guilds, and world ecoregions. Description percentages generally decrease in lineages with a higher proportion of species known or suspected to have endotrophic development. Also, geographic areas with the highest levels of ignorance in larval biology (Tropical Andes and New Guinea) coincide with the highest diversity of endotrophic guilds. Among exotrophic larvae, generalized lentic-lotic tadpoles have the widest distribution and levels of knowledge, whereas specialized lotic, fossorial, and terrestrial forms are more taxonomically and geographically restricted. Further large-scale analyses on tadpole biology are crucial for their impact in varied scientific disciplines including anuran conservation. At a conceptual level, the discussion of the anuran biphasic life cycle is pertinent in the context of shortfalls of biodiversity knowledge and their interrelationships.

Identifiers

PMID39242681
PMCPMC11332183

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.