Evidence map›Paper›PMID 34282032›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Invader removal triggers competitive release in a threatened avian predator.

J David Wiens, Katie M Dugger, J Mark Higley, Damon B Lesmeister, Alan B Franklin, Keith A Hamm, Gary C White, Krista E Dilione, David C Simon, Robin R Bown and 9 more

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

8 citing papers in PubMed.

  1. Modeling species co-occurrence effects to inform invasive barred owl management and recovery of the northern spotted owl.Ecological applications : a publication of the Ecological Society of America · 2026
    Article
  2. Article
  3. Divergent responses of native predators to severe wildfire and biological invasion are mediated by life history.Ecological applications : a publication of the Ecological Society of America · 2025
    Article
  4. Is killing animals an effective way to regulate populations?Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Estimating fat content in barred owls (Conservation physiology · 2023
    Article
  6. Range-wide sources of variation in reproductive rates of northern spotted owls.Ecological applications : a publication of the Ecological Society of America · 2023
    Article
  7. Article
  8. 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

19 authors.

J David WiensUS Geological Survey, Forest and Rangeland Ecosystem Science Center, Corvallis, OR 97330; jwiens@usgs.gov.ORCID 0000-0002-2020-038X
Katie M DuggerUS Geological Survey, Oregon Cooperative Fish and Wildlife Research Unit, Department of Fisheries and Wildlife, Oregon State University, Corvallis, OR 97331.ORCID 0000-0002-4148-246X
J Mark HigleyHoopa Tribal Forestry, Hoopa, CA 95546.
Damon B LesmeisterUS Department of Agriculture Forest Service, Pacific Northwest Research Station, Corvallis, OR 97331.
Alan B FranklinUS Department of Agriculture Wildlife Services, National Wildlife Research Center, Fort Collins, CO 80521.ORCID 0000-0001-9491-795X
Keith A HammGreen Diamond Resource Company, Korbel, CA 95550.ORCID 0000-0003-3646-3982
Gary C WhiteDepartment of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, CO 80523.
Krista E DilioneUS Geological Survey, Forest and Rangeland Ecosystem Science Center, Corvallis, OR 97330.
David C SimonUS Geological Survey, Forest and Rangeland Ecosystem Science Center, Corvallis, OR 97330.
Robin R BownUS Fish and Wildlife Service, Oregon State Office, Portland, OR 97266.
Peter C CarlsonDepartment of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, CO 80523.
Charles B YackulicUS Geological Survey, Southwest Biological Science Center, Flagstaff, AZ 86001.
James D NicholsUS Geological Survey, Patuxent Wildlife Research Center, Laurel, MD 20708.
James E HinesUS Geological Survey, Patuxent Wildlife Research Center, Laurel, MD 20708.
Raymond J DavisUS Department of Agriculture Forest Service, Pacific Northwest Research Station, Corvallis, OR 97331.
David W LamphearGreen Diamond Resource Company, Korbel, CA 95550.ORCID 0000-0002-1248-5987
Christopher McCaffertyUS Department of Agriculture Forest Service, Pacific Northwest Research Station, Corvallis, OR 97331.
Trent L McDonaldMcDonald Data Sciences, LLC, Laramie, WY 82070.
Stan G SovernDepartment of Fisheries and Wildlife, Oregon State University, Corvallis, OR 97331.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Changes in the distribution and abundance of invasive species can have far-reaching ecological consequences. Programs to control invaders are common but gauging the effectiveness of such programs using carefully controlled, large-scale field experiments is rare, especially at higher trophic levels. Experimental manipulations coupled with long-term demographic monitoring can reveal the mechanistic underpinnings of interspecific competition among apex predators and suggest mitigation options for invasive species. We used a large-scale before-after control-impact removal experiment to investigate the effects of an invasive competitor, the barred owl (

Indexed as

Animal DistributionIntroduced SpeciesAnimalsEcosystemNorthwestern United StatesPopulation DynamicsStrigiformescompetitioninvasive speciespopulation dynamicsremoval experimentStrix owls

Identifiers

PMID34282032
PMCPMC8346899

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.