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Large‐scale patterns of green turtle trophic ecology in the eastern Pacific Ocean
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2021
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Source: Ecosphere, 12(6)
[PDF-3.97 MB]
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Journal Title:Ecosphere
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Description:Trophic position and niche width are fundamental components of a species ’ecology, re flecting resource use, and in fluencing key demographic parameters such as somatic growth, maturation, and sur- vival. 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 overbroad 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 analysis(δ 13C and δ15N values) was conducted on bulk skin tissue of 718 green turtles ( Chelonia mydas ) distributed among 16 foraging areas in the eastern Paci fic from the USA to Chile, a range spanning ~10,000 km. Com- pound-speci fic nitrogen isotope analysis of amino acids (CSIA-AA) was applied to 21 turtles among seven
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Source:Ecosphere, 12(6)
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DOI:
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ISSN:2150-8925;2150-8925;
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Rights Information:CC BY
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Compliance:Library
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