Evidence map›Paper›PMID 32549986›Full record

ArticleMovement ecology2020

Both short and long distance migrants use energy-minimizing migration strategies in North American herring gulls.

Christine M Anderson, H Grant Gilchrist, Robert A Ronconi, Katherine R Shlepr, Daniel E Clark, David A Fifield, Gregory J Robertson, Mark L Mallory

Open access · goldAbstract read
In one paragraph

Article in Movement ecology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
2.9field-weighted citation impact, top 10% of its field
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

6 citing papers in PubMed, 33 citations in OpenAlex.

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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 at 4 institutions in 2 countries.

Christine M AndersonDepartment of Biology, Acadia University, 33 Westwood Ave, Wolfville, NS B4P 2R6 Canada.ORCID 0000-0002-3641-2192
H Grant GilchristWildlife Research Division, Environment and Climate Change Canada, National Wildlife Research Centre, Ottawa, ON K1S 5B6 Canada.
Robert A RonconiCanadian Wildlife Service, Environment and Climate Change Canada, 45 Alderney Dr, Dartmouth, NS B2Y 2N6 Canada.
Katherine R ShleprAtlantic Lab for Avian Research, Department of Biology, University of New Brunswick, P.O. Box 4400, 10 Bailey Drive, Fredericton, NB E3B 5A3 Canada.
Daniel E ClarkMassachusetts Department of Conservation and Recreation, Division of Water Supply Protection, 485 Ware Road, Belchertown, MA 01007 USA.
David A FifieldWildlife Research Division, Environment and Climate Change Canada, 6 Bruce Street, Mount Pearl, NL A1N 4T3 Canada.
Gregory J RobertsonWildlife Research Division, Environment and Climate Change Canada, 6 Bruce Street, Mount Pearl, NL A1N 4T3 Canada.
Mark L MalloryDepartment of Biology, Acadia University, 33 Westwood Ave, Wolfville, NS B4P 2R6 Canada.
Environment and Climate Change Canada · CAAcadia University · CADepartment of Conservation and Recreation · USUniversity of New Brunswick · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent studies have proposed that birds migrating short distances migrate at an overall slower pace, minimizing energy expenditure, while birds migrating long distances minimize time spent on migration to cope with seasonal changes in environmental conditions.

methodsWe evaluated variability in the migration strategies of Herring Gulls (

resultsOur research revealed that Herring Gulls breeding in the eastern Arctic migrate long distances to spend the winter in the Gulf of Mexico, traveling more than four times farther than gulls from Atlantic Canada during autumn migration. While all populations used indirect routes, the long distance migrants were the least direct. We found that regardless of the distance the population traveled, Herring Gulls migrated at a slower overall migration speed than predicted by Optimal Migration Theory, but the long distance migrants had higher speeds on travel days. While long distance migrants used more stopover days overall, relative to the distance travelled all four populations used a similar number of stopover days.

conclusionsWhen taken in context with other studies, we expect that the migration strategies of flexible generalist species like Herring Gulls may be more influenced by habitat and food resources than migration distance.

Indexed as

Animal movementBird migrationEcologyGeneralistMigration strategyMigratory behaviourStopoverTelemetryTracking

Identifiers

PMID32549986
PMCPMC7294659
OpenAlexW3035054497

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.