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metadata.dc.type: bookPart
Título : The Foraging Strategies of the Galapagos Sea Lion Inferred from a Multiple Approach Analysis
Autor : Páez Rosas, Diego Rodolfo
Fecha de publicación : 28-dic-2013
Editorial : Cham : Springer
Citación : Páez Rosas, Diego Rodolfo; et al. (2013). Flexibility in the Foraging Strategies of the Galapagos Sea Lion Inferred from a Multiple Approach Analysis. Springer, Cham. pp. 71-80
Citación : DOI;https://doi.org/10.1007/978-3-319-02769-2_4
Resumen : Studies concerning the foraging behavior of the endangered Galapagos sea lion (Zalophus wollebaeki) are essential to understand long-term conservation challenges and predict population fluctuations. This study provides a comparative analysis of variables related to the foraging habits and trophic niche flexibility of Z. wollebaeki. Complementary stable isotopes and remote sensors were used to measure space-time variables concerning Z. wollebaeki foraging habits among populations in the Galapagos Archipelago. In spatial terms, isotopic values (n = 321) showed differences regarding foraging grounds (δ13C: p = 0.015). These results also show test subjects maintained equilibrium in the trophic level of their diet (δ15N: p = 0.152). The results of this study confirm the evolutionary behavior of Z. wollebaeki has resulted in a high level of flexibility in foraging habits. This adaptability affords a higher advantage for survival in the Galapagos: a confined ecosystem with limited resources.
metadata.dc.description.uri: https://link.springer.com/chapter/10.1007%2F978-3-319-02769-2_4
URI : http://repositorio.educacionsuperior.gob.ec/handle/28000/5083
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