Evidence map›Paper›PMID 35426519›Full record

ArticleOecologia2022

Isotopic niche partitioning and individual specialization in an Arctic raptor guild.

Devin L Johnson, Michael T Henderson, David L Anderson, Travis L Booms, Cory T Williams

Abstract read
PubMed Publisher
In one paragraph

Article in Oecologia, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. 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

5 authors.

Devin L JohnsonDepartment of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK, 99775, USA. dljohnson8@alaska.edu.ORCID http://orcid.org/0000-0002-8749-5637
Michael T HendersonThe Peregrine Fund, 5668 Flying Hawk Lane, Boise, ID, 83709, USA.
David L AndersonThe Peregrine Fund, 5668 Flying Hawk Lane, Boise, ID, 83709, USA.
Travis L BoomsAlaska Department of Fish and Game, 1300 College Road, Fairbanks, AK, 99701, USA.
Cory T WilliamsDepartment of Biology, Colorado State University, Fort Collins, CO, 80523, USA.

Funding

The Peregrine Fund Graduate Research GrantUniversity of Alaska Fairbanks Angus Gavin Migratory Bird Research GrantUniversity of Alaska Fairbanks Calvin J Lensink Graduate Fellowship in Wildlife Biology
6 · The paper itself

Abstract

Intra- and inter-specific resource partitioning within predator communities is a fundamental component of trophic ecology, and one proposed mechanism for how populations partition resources is through individual niche variation. The Niche Variation Hypothesis (NVH) predicts that inter-individual trait variation leads to functional trade-offs in foraging efficiency, resulting in populations composed of individual dietary specialists. The degree to which niche specialization persists within a population is plastic and responsive to fluctuating resource availability. We quantified niche overlap and tested the NVH within an Arctic raptor guild, focusing on three species that employ different foraging strategies: golden eagles (generalists); gyrfalcons (facultative specialists); and rough-legged hawks (specialists). Tundra ecosystems exhibit cyclic populations of arvicoline rodents (lemmings and voles), providing a unique system in which to examine predator diet in response to interannual fluctuations in resource availability. Using blood δ

Indexed as

EcosystemRaptorsAnimalsArctic RegionsArvicolinaeBayes TheoremTundraArctic tundraNiche variation hypothesisOptimal foraging theoryRaptorStable isotopesTrophic ecology

Identifiers

PMID35426519

What OpenQuestion holds

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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.