Evidence map›Paper›PMID 41852645›Full record

ArticlePNAS nexus2026

Discovering and protecting cryptic biodiversity: A case study of a previously undescribed, vulnerable bird species in Japan.

Takema Saitoh, Daria Shipilina, Canwei Xia, Lijun Zhang, Shin-Ichi Seki, Urban Olsson, Per Alström

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in PNAS nexus, 2026. 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

7 authors.

Takema SaitohYamashina Institute for Ornithology, 115 Konoyama, Abiko, Chiba 270-1145, Japan.ORCID https://orcid.org/0000-0003-4982-4724
Daria ShipilinaAnimal Ecology, Department of Ecology and Genetics, Evolutionary Biology Centre, Uppsala University, Norbyvägen 18 D, Uppsala SE-752 36, Sweden.ORCID https://orcid.org/0000-0002-1145-9226
Canwei XiaAnimal Ecology, Department of Ecology and Genetics, Evolutionary Biology Centre, Uppsala University, Norbyvägen 18 D, Uppsala SE-752 36, Sweden.ORCID https://orcid.org/0000-0003-1432-1019
Lijun ZhangAnimal Ecology, Department of Ecology and Genetics, Evolutionary Biology Centre, Uppsala University, Norbyvägen 18 D, Uppsala SE-752 36, Sweden.
Shin-Ichi SekiKansai Research Center, Forestry and Forest Products Research Institute, Nagaikyutaro 68, Kyoto 612-0855, Japan.ORCID https://orcid.org/0000-0002-5140-4174
Urban OlssonSystematics and Biodiversity, Department of Zoology, Gothenburg University, Box 463, Göteborg SE-405 30, Sweden.
Per AlströmAnimal Ecology, Department of Ecology and Genetics, Evolutionary Biology Centre, Uppsala University, Norbyvägen 18 D, Uppsala SE-752 36, Sweden.ORCID https://orcid.org/0000-0001-7182-2763

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite the escalating biodiversity crisis, many species remain unknown to science and may even disappear unnoticed. This is particularly true for many island populations. We illustrate the problem of detecting overlooked species and its consequences by exploring a rare and geographically restricted migratory songbird. We find that this consists of two-hence even rarer-species: the Japanese endemic Ijima's Leaf Warbler

Identifiers

PMID41852645
PMCPMC12993812

What OpenQuestion holds

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LicenceCC BY-NC
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.