A critical assessment of marine predator isoscapes within the southern Indian Ocean.
Geolocation
Penguins
Procellariiformes
Seabirds
Southern Ocean
Stable isotope ecology
Journal
Movement ecology
ISSN: 2051-3933
Titre abrégé: Mov Ecol
Pays: England
ID NLM: 101635009
Informations de publication
Date de publication:
2020
2020
Historique:
received:
14
12
2019
accepted:
05
05
2020
entrez:
3
7
2020
pubmed:
3
7
2020
medline:
3
7
2020
Statut:
epublish
Résumé
Precise and accurate retrospective geolocation of marine predators via their tissues' isotopic composition relies on quality reference maps of relevant isotopic gradients ("isoscapes"). Additionally, a good working knowledge of any discrimination factors that may offset a marine predator's isotopic composition from baseline isotopic values, as well as tissue specific retention rates, are imperative. We provide a critical assessment of inter-specific differences among marine predator-level isoscapes within the Indian Sector of the Southern Ocean. We combined fine-scale GPS tracking data and concurrent blood plasma δ Overall, our study revealed latitudinal spatial gradients in both δ Using a multi-species approach, we provide evidence of large and regional scale systematic spatial variability of δ
Sections du résumé
BACKGROUND
BACKGROUND
Precise and accurate retrospective geolocation of marine predators via their tissues' isotopic composition relies on quality reference maps of relevant isotopic gradients ("isoscapes"). Additionally, a good working knowledge of any discrimination factors that may offset a marine predator's isotopic composition from baseline isotopic values, as well as tissue specific retention rates, are imperative. We provide a critical assessment of inter-specific differences among marine predator-level isoscapes within the Indian Sector of the Southern Ocean.
METHODS
METHODS
We combined fine-scale GPS tracking data and concurrent blood plasma δ
RESULTS
RESULTS
Overall, our study revealed latitudinal spatial gradients in both δ
CONCLUSIONS
CONCLUSIONS
Using a multi-species approach, we provide evidence of large and regional scale systematic spatial variability of δ
Identifiants
pubmed: 32612836
doi: 10.1186/s40462-020-00208-8
pii: 208
pmc: PMC7322845
doi:
Types de publication
Journal Article
Langues
eng
Pagination
29Informations de copyright
© The Author(s) 2020.
Déclaration de conflit d'intérêts
Competing interestsThe authors have no competing interests.
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