Evidence map›Paper›PMID 29483662›Full record

ArticleHeredity2018

Historical changes in grassland area determined the demography of semi-natural grassland butterflies in Japan.

Naoyuki Nakahama, Kei Uchida, Atushi Ushimaru, Yuji Isagi

Open access · bronzeAbstract readHistorical Article
In one paragraph

Article in Heredity, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
9.7field-weighted citation impact, top 2% 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

9 citing papers in PubMed, 46 citations in OpenAlex.

  1. Phylogeography of the Grassland SkipperEcology and evolution · 2026
    Article
  2. Article
  3. Development of mitochondrial DNA cytochromeBiodiversity data journal · 2024
    Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Phylogeography ofEcology and evolution · 2019
    Article
  9. 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

4 authors at 4 institutions in 1 country.

Naoyuki NakahamaGraduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan. naoyuki.halobates@gmail.com.ORCID http://orcid.org/0000-0003-3106-8289
Kei UchidaGraduate School of Environment and Information Sciences, Yokohama National University, 79-7 Tokiwa-dai, Hodogaya-ku, Yokohama, Kanagawa, 240-8501, Japan.
Atushi UshimaruGraduate School of Human Development and Environment, Kobe University, 3-11 Kobe, Hyogo, 657-8501, Japan.
Yuji IsagiGraduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan.
Kobe University · JPKyoto University · JPThe University of Tokyo · JPYokohama National University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Semi-natural grassland areas expanded worldwide several thousand years ago following an increase in anthropogenic activities. However, semi-natural grassland habitat areas have been declining in recent decades due to changes in landuse, which have caused a loss of grassland biodiversity. Reconstructing historical and recent demographic changes in semi-natural grassland species will help clarify the factors affecting their population decline. Here we quantified past and recent demographic histories of Melitaea ambigua (Lepidoptera; Nymphalidae), an endangered grassland butterfly species in Japan. We examined changes in demography over the past 10,000 years based on 1378 bp of mitochondrial COI gene. We then examined changes in its genetic diversity and structure during the last 30 years using nine microsatellite DNA markers. The effective population size of M. ambigua increased about 3000-6000 years ago. In contrast, the genetic diversity and effective population sizes of many populations significantly declined from the 1980s to 2010s, which is consistent with a recent decline in the species population size. Our data suggest that the M. ambigua demography can be traced to changes in area covered by semi-natural grasslands throughout the Holocene.

Indexed as

BiodiversityDemographyGenetic VariationGrasslandAnimalsButterfliesConservation of Natural ResourcesEcosystemHistory, 20th CenturyHistory, 21st CenturyMicrosatellite RepeatsPopulation Density

Identifiers

PMID29483662
PMCPMC6039439
OpenAlexW2789786460

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.