Evidence map›Paper›PMID 40654150›Full record

ArticleThe New phytologist2026

Digitised herbarium specimen data reveal a climate change-related trend to an earlier, shorter Canadian Arctic flowering season, and phylogenetic signal in Arctic flowering times.

Zoe A Panchen, Jennifer Doubt, Jeffery M Saarela, Heather M Kharouba

Abstract read
In one paragraph

Article in The New phytologist, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. Review
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.

Zoe A PanchenDepartment of Biology, Acadia University, Wolfville, NS, B4P 2R6, Canada.
Jennifer DoubtBotany Section and Beaty Centre for Species Discovery, Research and Collections, Canadian Museum of Nature, Ottawa, ON, K1P 6P4, Canada.ORCID https://orcid.org/0000-0001-6413-3759
Jeffery M SaarelaBotany Section and Beaty Centre for Species Discovery, Research and Collections, Canadian Museum of Nature, Ottawa, ON, K1P 6P4, Canada.ORCID https://orcid.org/0000-0003-1790-4332
Heather M KharoubaDepartment of Biology, University of Ottawa, Ottawa, ON, K1N 6N5, Canada.ORCID https://orcid.org/0000-0002-3250-9253

Funding

MitacsNatural Sciences and Engineering Research Council of Canada (NSERC)The Nature Foundation
6 · The paper itself

Abstract

The Arctic is experiencing some of the world's most rapid changes in climate. Arctic plant flowering time responses to climate change are understudied. Globally, conflicting evidence exists on whether flowering time responses to temperature are evolutionarily conserved. We scored the reproductive phenology of 17 000 digitised herbarium specimens of 97 plant species collected across the Canadian Arctic since the 1900s to determine whether and how flowering times in the Canadian Arctic have shifted over the past century; how responsive flowering times are to temperature; and whether flowering times and flowering time responses to temperature are evolutionarily conserved. We found that flowering times in the Canadian Arctic are converging, with later-flowering species shifting their flowering times to a greater degree than earlier-flowering species, resulting in a shorter flowering season. We detected a significant phylogenetic signal associated with Arctic flowering times but no phylogenetic signal in flowering time responses to temperature. A shorter flowering season in the Arctic has implications for tundra food webs and species interactions, with fitness consequences across tundra trophic levels. Digitised records allowed citizen scientists to become virtual collaborators in this project, and the research provided opportunities to improve digitised record quality for future research.

Indexed as

Climate ChangeFlowersPhylogenySeasonsArctic RegionsCanadaTemperatureTime FactorsCanadian Arcticclimate changedigitised herbarium specimensflowering timesphenologyphylogenetic signalvascular plants

Identifiers

PMID40654150
PMCPMC13278663

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.