 |
| Titel |
Stable isotopes in barnacles as a tool to understand green sea turtle (Chelonia mydas) regional movement patterns |
| VerfasserIn |
M. Detjen, E. Sterling, A. Gómez |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1726-4170
|
| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 12, no. 23 ; Nr. 12, no. 23 (2015-12-08), S.7081-7086 |
| Datensatznummer |
250118201
|
| Publikation (Nr.) |
 copernicus.org/bg-12-7081-2015.pdf |
|
|
|
|
|
| Zusammenfassung |
| Sea turtles are migratory animals that travel long distances between their
feeding and breeding grounds. Traditional methods for researching sea turtle
migratory behavior have important disadvantages, and the development of
alternatives would enhance our ability to monitor and manage these globally
endangered species. Here we report on the isotope signatures in green
sea-turtle (Chelonia mydas) barnacles (Platylepas sp.)
and discuss their potential relevance as tools with which to study green sea
turtle migration and habitat use patterns. We analyzed oxygen
(δ18O) and carbon (δ13C) isotope ratios in barnacle
calcite layers from specimens collected from green turtles captured at the
Palmyra Atoll National Wildlife Refuge (PANWR) in the central Pacific. Carbon
isotopes were not informative in this study. However, the oxygen isotope
results suggest likely regional movement patterns when mapped onto a
predictive oxygen isotope map of the Pacific. Barnacle proxies could
therefore complement other methods in understanding regional movement
patterns, informing more effective conservation policy that takes into
account connectivity between populations. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|