Evidence map›Paper›PMID 37582990›Full record

ArticleDoklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections2023

Can Shrews Avoid Competition When Hutchinson's Ecological Rule Is Disobeyed?

A G Vasil'ev, V N Bol'shakov, I A Vasil'eva, T P Kourova

Abstract read
PubMed Publisher
In one paragraph

Article in Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

4 authors.

A G Vasil'evInstitute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia. vag@ipae.uran.ru.
V N Bol'shakovInstitute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia.
I A Vasil'evaInstitute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia.
T P KourovaInstitute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It is established that Hutchinson's ratio of the weights and sizes of the body and foraging organs in similar species is not fully obeyed in shrew species of the genus Sorex. Similarity in the centroid size of the mandible was observed in the large species S. isodon and S. araneus. Differences in the shape of the mandible, which is intensely used in foraging, were detected between the species by geometric morphometrics. Interspecific differences were found in mandibular indices, which reflect trophic specialization and functional features of the mandibles. Shrews can therefore avoid competition even when Hutchinson's rule is violated. The avoidance is due to a transformation and specialization of the mandible and changes in prey capture methods and diet, rather than to changes in size. Hutchinson's ecological rule is thus not mandatory, but is only one of the conditions for reducing competition between closely related species.

Indexed as

MandibleShrewsAnimalsgeometric morphometricsHutchinson’s ratiomandibleSorexspecialization

Identifiers

PMID37582990

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.