Evidence map›Paper›PMID 40530805›Full record

ArticleEcological applications : a publication of the Ecological Society of America2025

Shifting and expanding ranges of a sub-Arctic caribou herd and associated changes in vegetation.

Kathleen M Orndahl, Torsten W Bentzen, Logan T Berner, Libby P W Ehlers, Mark Hebblewhite, Jim D Herriges, Kyle Joly, Matthew J Macander, Eric C Palm, Michael J Suitor and 1 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Ecological applications : a publication of the Ecological Society of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Shifting and expanding ranges of a sub-Arctic caribou herd and associated changes in vegetation.Ecological applications : a publication of the Ecological Society of America · 2025
    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

11 authors.

Kathleen M OrndahlSchool of Informatics, Computing and Cyber Systems, Northern Arizona University, Flagstaff, Arizona, USA.
Torsten W BentzenAlaska Department of Fish & Game, Fairbanks, Alaska, USA.
Logan T BernerSchool of Informatics, Computing and Cyber Systems, Northern Arizona University, Flagstaff, Arizona, USA.ORCID https://orcid.org/0000-0001-8947-0479
Libby P W EhlersW.A. Franke College of Forestry and Conservation, Wildlife Biology Program, University of Montana, Missoula, Montana, USA.
Mark HebblewhiteW.A. Franke College of Forestry and Conservation, Wildlife Biology Program, University of Montana, Missoula, Montana, USA.ORCID https://orcid.org/0000-0001-5382-1361
Jim D HerrigesBureau of Land Management, Fairbanks, Alaska, USA.
Kyle JolyNational Park Service, Yukon-Charley Rivers National Preserve, Fairbanks, Alaska, USA.
Matthew J MacanderABR, Inc.-Environmental Research & Services, Fairbanks, Alaska, USA.
Eric C PalmW.A. Franke College of Forestry and Conservation, Wildlife Biology Program, University of Montana, Missoula, Montana, USA.ORCID https://orcid.org/0000-0002-5330-4804
Michael J SuitorDepartment of Environment, Fish and Wildlife, Whitehorse, Yukon, Canada.
Scott J GoetzSchool of Informatics, Computing and Cyber Systems, Northern Arizona University, Flagstaff, Arizona, USA.

Funding

National Science Foundation Graduate Research Fellowship Program 1938054U.S. National Aeronautics and Space Administration (NASA) NNX15AW71AU.S. National Science Foundation (NSF) 2127272
6 · The paper itself

Abstract

Rapid climate warming has contributed to significant changes in Arctic and boreal vegetation over the past half century. Changes in vegetation can impact wildlife by altering habitat and forage availability, which can affect behavior and range use. However, animals can also influence vegetation through foraging and trampling and therefore play an important role in determining ecosystem responses to climate change. As wildlife populations grow, density-dependent processes can prompt range expansion or shifts. One mechanism for this is density-dependent forage reduction, which can contribute to nutritional stress and population declines, and can also alter vegetation change trajectories. We assessed the range characteristics of a migratory caribou (Rangifer tarandus) herd in east-central Alaska and west-central Yukon Territory as it grew (1992-2017) then declined (2017-2020). Furthermore, we analyzed the correlation between caribou relative spatial density and vegetation change over this period using remotely sensed models of plant functional type cover. Over this period, caribou population density increased in all seasonal ranges. This was most acute in the calving range where density increased 8-fold, from 1.5 to 12.0 animals km

Indexed as

Animal DistributionClimate ChangeReindeerAlaskaAnimalsArctic RegionsEcosystemPopulation DensityPopulation DynamicsYukon Territorycaribouclimate changedensity dependenceforageFortymile Caribou Herdherbivoryrange expansionRangifer tarandusremote sensingshrub expansionvegetation change

Identifiers

PMID40530805
PMCPMC12175647

What OpenQuestion holds

Textmetadata
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.