Evidence map›Paper›PMID 28775301›Full record

ArticleScientific reports2017

High diversity and unique composition of gut microbiomes in pygmy (Kogia breviceps) and dwarf (K. sima) sperm whales.

Patrick M Erwin, Ryan G Rhodes, Kevin B Kiser, Tiffany F Keenan-Bateman, William A McLellan, D Ann Pabst

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

27 citing papers in PubMed, 47 citations in OpenAlex.

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  9. Genetic diversity of single-celled microorganismCurrent research in microbial sciences · 2025
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  12. The intestinal microbiota of a Risso's dolphin (Grampus griseus): possible relationships with starvation raised by macro-plastic ingestion.International microbiology : the official journal of the Spanish Society for Microbiology · 2023
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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

6 authors at 1 institution in 1 country.

Patrick M ErwinDepartment of Biology and Marine Biology, Center for Marine Science, University of North Carolina Wilmington, Wilmington, NC, 28409, USA. erwinp@uncw.edu.ORCID 0000-0001-9276-0020
Ryan G RhodesDepartment of Biology and Marine Biology, Center for Marine Science, University of North Carolina Wilmington, Wilmington, NC, 28409, USA.
Kevin B KiserDepartment of Biology and Marine Biology, Center for Marine Science, University of North Carolina Wilmington, Wilmington, NC, 28409, USA.
Tiffany F Keenan-BatemanDepartment of Biology and Marine Biology, Center for Marine Science, University of North Carolina Wilmington, Wilmington, NC, 28409, USA.
William A McLellanDepartment of Biology and Marine Biology, Center for Marine Science, University of North Carolina Wilmington, Wilmington, NC, 28409, USA.
D Ann PabstDepartment of Biology and Marine Biology, Center for Marine Science, University of North Carolina Wilmington, Wilmington, NC, 28409, USA.
University of North Carolina Wilmington · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mammals host diverse bacterial and archaeal symbiont communities (i.e. microbiomes) that play important roles in digestive and immune system functioning, yet cetacean microbiomes remain largely unexplored, in part due to sample collection difficulties. Here, fecal samples from stranded pygmy (Kogia breviceps) and dwarf (K. sima) sperm whales were used to characterize the gut microbiomes of two closely-related species with similar diets. 16S rRNA gene sequencing revealed diverse microbial communities in kogiid whales dominated by Firmicutes and Bacteroidetes. Core symbiont taxa were affiliated with phylogenetic lineages capable of fermentative metabolism and sulfate respiration, indicating potential symbiont contributions to energy acquisition during prey digestion. The diversity and phylum-level composition of kogiid microbiomes differed from those previously reported in toothed whales, which exhibited low diversity communities dominated by Proteobacteria and Actinobacteria. Community structure analyses revealed distinct gut microbiomes in K. breviceps and K. sima, driven by differential relative abundances of shared taxa, and unique microbiomes in kogiid hosts compared to other toothed and baleen whales, driven by differences in symbiont membership. These results provide insight into the diversity, composition and structure of kogiid gut microbiomes and indicate that host identity plays an important role in structuring cetacean microbiomes, even at fine-scale taxonomic levels.

Indexed as

BiodiversityGastrointestinal MicrobiomeSperm WhaleWhalesAnimalsMetagenomeMetagenomicsPhylogenySymbiosis

Identifiers

PMID28775301
PMCPMC5543158
OpenAlexW2741520717

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.