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http://cibnor.repositorioinstitucional.mx/jspui/handle/1001/2335| Large-scale patterns of green turtle trophic ecology in the eastern Pacific Ocean | |
| Jeffrey Seminoff Lisa Komoroske Diego Amorocho Randall Arauz Peter H Dutton Shaleyla Kelez Garrett Lemons Juan M. Rguez-Baron Laura Sampson Lucía Santos Baca Todd Steiner Patricia Zarate Bustamante Alan Zavala-Norzagaray Brian Popp | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| URL: https://esajournals.onlinelibrary.wiley.com/doi/pdfdirect/10.1002/ecs2.3479 ISSN: 2150-8925 | |
| amino acids, Bayesian ellipse, carbon, Chelonia mydas, convex hull, ectotherm, isoscape, isotopic niche, nitrogen, stable isotope analysis, trophic position | |
| "Trophic position and niche width are fundamental components of a species’ ecology, reflecting resource use, and influencing key demographic parameters such as somatic growth, maturation, and survival. Concepts about a species’ trophic niche space have important implications for local management and habitat protection, and can shed light about resilience to changing climate for species occurring over broad spatial scales. For elusive marine animals such as sea turtles, trophic niche is challenging to study, and researchers often rely on other metrics, such as isotopic niche, as a proxy. Here, stable isotope análisis (δ13C and δ15N values) was conducted on bulk skin tissue of 718 green turtles (Chelonia mydas) distributed among 16 foraging areas in the eastern Pacific from the USA to Chile, a range spanning ~10,000 km. Compound- specific nitrogen isotope analysis of amino acids (CSIA-AA) was applied to 21 turtles among seven sites. Isotopic niche space was determined via Bayesian ellipse area (BEA) and convex hull area (CHA) analyses of bulk isotope values, which were also used along with amino acid δ15N values to determine trophic position (TP). Substantial variability in bulk tissue δ13C and δ15N values was found within and among sites, and amino acid δ15N values confirmed this was largely due to spatial differences in baseline nitrogen isotopic compositions, but also to a lesser extent from TP differences among the green turtle..." | |
| Ecological Society of America | |
| 2021 | |
| Artículo | |
| Ecosphere | |
| Inglés | |
| Seminoff, J. A., L. M. Komoroske, D. Amorocho, R. Arauz, D. Chac´on-Chaverr´ı, N. de Paz, P. H. Dutton, M. Donoso, M. Heidemeyer, G. Hoeffer, T. Todd Jones, S. Kelez, G. E. Lemons, J. M. Rguez-Baron, L. Sampson, L. Santos Baca, T. Steiner, M. Vejar Rubio, P. Z´arate, A. Zavala-Norzagaray, and B. N. Popp. 2021. Large-scale patterns of green turtle trophic ecology in the eastern Pacific Ocean. Ecosphere 12(6):e03479. 10.1002/ecs2.3479 | |
| ECOLOGÍA ANIMAL | |
| Versión publicada | |
| publishedVersion - Versión publicada | |
| Aparece en las colecciones: | Artículos |
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| ecs2.3479.pdf | 3.95 MB | Adobe PDF | Visualizar/Abrir |