Evidence map›Paper›PMID 12118118›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2002

Synergism between trematode infection and pesticide exposure: a link to amphibian limb deformities in nature?

Joseph M Kiesecker

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed, 2 pooled it
18.5field-weighted citation impact, top 1% of its field
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

77 citing papers in PubMed, 2 syntheses or guidelines pooled it, 452 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. The Individual and Combined Effects of Warming and Atrazine on Lithobates pipiens Phenotypes: Implications for Frog Declines.Journal of experimental zoology. Part A, Ecological and integrative physiology · 2026
    Article
  5. Outbreak of parasite-induced limb malformations in a declining amphibian species in Colorado.International journal for parasitology. Parasites and wildlife · 2024
    Article
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  14. Review
  15. Article
  16. Guidance for Developing Amphibian Population Models for Ecological Risk Assessment.Integrated environmental assessment and management · 2020
    Article
  17. Article
  18. The impact of elevated temperature and COFrontiers in zoology · 2020
    Article
  19. Article
  20. Article

17 more citing papers are in PubMed but not listed here.

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

1 author at 1 institution in 1 country.

Joseph M KieseckerDepartment of Biology, Pennsylvania State University, 208 Mueller Laboratory, University Park, PA 16802-5301, USA. jmk23@psu.edu
Pennsylvania State University · US

Funding

WETLAND URBANIZATION GRADIENTS AND VECTOR BORNE DISEASESR01ES011067 · NIEHS · PENNSYLVANIA STATE UNIVERSITY-UNIV PARK · PI KIESECKER, JOSEPH · 2000 to 2002
$1.3M
NIEHS NIH HHS 1R01ES11067-01NIEHS NIH HHS R01 ES011067
6 · The paper itself

Abstract

The apparently rapid increase in the prevalence of amphibian limb deformities has led to substantial interest from ecologists and public health professionals. Hypotheses proposed to explain the deformities fall into two broad categories: chemical contaminants and trematode infection. Although there are convincing experimental demonstrations that certain factors can lead to some deformities, the causes for recent increases in amphibian malformation remain controversial. Moreover, no experimental studies on amphibian deformities have been conducted in the field, and no studies have attempted to examine the synergistic effects of trematode infection and exposure to chemical contaminants. Here, I present the results of field and laboratory experiments that link increased trematode infection, and increased limb deformities, to pesticide exposure. Field experiments conclusively demonstrated that exposure to trematode infection was required for the development of limb deformities in wood frogs, Rana sylvatica. However, deformities were more common at sites adjacent to agricultural runoff. Laboratory experiments corroborated the association between pesticide exposure and increased infection with pesticide-mediated immunocompetency as the apparent mechanism. Given the conservative contaminant exposure levels used [Environmental Protection Agency (EPA) drinking water standards] and the widespread use of many pesticides, these negative impacts may help to explain pathogen-mediated amphibian declines in many regions.

Indexed as

Environmental ExposureExtremitiesHerbicidesRanidaeAmphibiansAnimalsEosinophilsPesticidesSnailsTrematodaTrematode InfectionsHerbicidesPesticides

Identifiers

PMID12118118
PMCPMC126596
OpenAlexW1998631479

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.