Evidence map›Paper›PMID 33093960›Full record

ArticleMovement ecology2020

Foraging behaviour of a continental shelf marine predator, the grey seal (

B V R Nowak, W D Bowen, K Whoriskey, D C Lidgard, J E Mills Flemming, S J Iverson

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 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

5 citing papers in PubMed, 19 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

6 authors at 1 institution in 1 country.

B V R NowakDepartment of Biology, Dalhousie University, Halifax, Nova Scotia B3H 4JI Canada.ORCID 0000-0001-7977-4727
W D BowenDepartment of Biology, Dalhousie University, Halifax, Nova Scotia B3H 4JI Canada.
K WhoriskeyDepartment of Mathematics and Statistics, Dalhousie University, Halifax, Nova Scotia B3H 4JI Canada.
D C LidgardDepartment of Biology, Dalhousie University, Halifax, Nova Scotia B3H 4JI Canada.
J E Mills FlemmingDepartment of Mathematics and Statistics, Dalhousie University, Halifax, Nova Scotia B3H 4JI Canada.
S J IversonDepartment of Biology, Dalhousie University, Halifax, Nova Scotia B3H 4JI Canada.
Dalhousie University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe heterogeneous oceanographic conditions of continental shelf ecosystems result in a three-dimensionally patchy distribution of prey available to upper-trophic level predators. The association of bio-physical conditions with movement patterns of large marine predators has been demonstrated in diverse taxa. However, obtaining subsurface data that are spatio-temporally relevant to the decisions made by benthically-foraging species can be challenging.

methodsBetween 2009 and 2015, grey seals were captured on Sable Island, Nova Scotia, Canada during summer and fall and instrumented with high-resolution archival GPS tags. These tags recorded location data as well as depth (m), temperature (°C), and light level measurements during dives, until animals returned to the haulout site to breed. Hidden Markov models were used to predict apparent foraging along movement tracks for 79 individuals (59 females, 20 males) every 3 h. In situ measurements were used to estimate chlorophyll-

resultsPredicted grey seal behavioural states were associated with fine-scale chlorophyll-

conclusionsThe results of this study highlight the value of in situ measurements of oceanographic properties that can be collected at high temporal resolution by animal-borne data loggers. These data provide insight into how inferred behavioural decisions made by large marine predators, such as the grey seal, may be influenced by fine-scale oceanographic conditions.

Indexed as

BenthicForaging behaviourGrey sealHidden Markov modelOceanographic conditionsPhytoplankton biomassScotian Shelf

Identifiers

PMID33093960
PMCPMC7574573
OpenAlexW3094171424

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.