Evidence map›Paper›PMID 39690719›Full record

ArticleAmerican journal of botany2025

Spatiotemporal variation in population dynamics of a narrow endemic, Ranunculus austro-oreganus.

Riley D Thoen, Lauren B Hendricks, Graham T Bailes, Bart R Johnson, Laurel Pfeifer-Meister, Paul B Reed, Bitty A Roy, Megan L DeMarche

Abstract read
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Article in American journal of botany, 2025. 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. Dynamic Structural Changes in a Population ofPlants (Basel, Switzerland) · 2025
    Article
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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

8 authors.

Riley D ThoenDepartment of Plant Biology, University of Georgia, Athens, GA, USA.ORCID 0009-0002-3252-0038
Lauren B HendricksEnvironmental Studies Program, University of Oregon, Eugene, OR, USA.ORCID 0000-0002-8910-6084
Graham T BailesInstitute of Ecology and Evolution, Department of Biology, University of Oregon, Eugene, OR, USA.ORCID 0000-0003-4570-3087
Bart R JohnsonDepartment of Landscape Architecture, University of Oregon, Eugene, OR, USA.ORCID 0000-0001-7946-3769
Laurel Pfeifer-MeisterInstitute of Ecology and Evolution, Department of Biology, University of Oregon, Eugene, OR, USA.ORCID 0009-0009-1258-7914
Paul B ReedInstitute of Ecology and Evolution, Department of Biology, University of Oregon, Eugene, OR, USA.ORCID 0000-0001-7143-7515
Bitty A RoyInstitute of Ecology and Evolution, Department of Biology, University of Oregon, Eugene, OR, USA.ORCID 0000-0003-1666-5624
Megan L DeMarcheDepartment of Plant Biology, University of Georgia, Athens, GA, USA.ORCID 0000-0002-5010-2721

Funding

NSF 1340847
6 · The paper itself

Abstract

premiseUnderstanding how population dynamics vary in space and time is critical for understanding the basic life history and conservation needs of a species, especially for narrow endemic species whose populations are often in similar environments and therefore at increased risk of extinction under climate change. Here, we investigated the spatial and temporal variation in population dynamics of Ranunculus austro-oreganus, a perennial buttercup endemic to fragmented prairie habitat in one county in southern Oregon.

methodsWe performed demographic surveys of three populations of R. austro-oreganus over 4 years (2015-2018). We used size-structured population models and life table response experiments to investigate vital rates driving spatiotemporal variation in population growth.

resultsOverall, R. austro-oreganus had positive or stable stochastic population growth rates, though individual vital rates and overall population growth varied substantially among sites and years. All populations had their greatest growth in the same year, suggesting potential synchrony associated with climate conditions. Differences in survival contributed most to spatial variation in population growth, while differences in reproduction contributed most to temporal variation in population growth.

conclusionsPopulations of this extremely narrow endemic appear stable, with positive growth during our study window. These results suggest that populations of R. austro-oreganus are able to persist if their habitat is not eliminated by land-use change. Nonetheless, its narrow distribution and synchronous population dynamics suggest the need for continued monitoring, particularly with ongoing habitat loss and climate change.

Indexed as

RanunculusClimate ChangeEcosystemOregonPopulation DynamicsSpatio-Temporal Analysisdemographyintegral projection modellife table response experimentnarrow endemicRanunculaceaeskewed growthstructured population modelvital rates

Identifiers

PMID39690719
PMCPMC11744433

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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.