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Volume 51, No. 2

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Ingestion of man-made debris by Markham's Storm Petrel Hydrobates markhami


Authors

FERNANDO MEDRANO1*, MACARENA VARGAS1, DANIEL TERÁN1, MARLENE FLORES2 GIANNIRA ÁLVAREZ1
1Red de Observadores de Aves y Vida Silvestre de Chile (ROC), Chile *(fernandomedranomartinez@gmail.com)
2Colegio Marista Hermano Fernando, Ricardo Lagos. 4201, Alto Hospicio, Chile

Citation

MEDRANO, F., VARGAS, M., TERÁN, D., FLORES, M., ÁLVAREZ, G. & PEREDO, R. 2023. Ingestion of man-made debris by Markham's Storm Petrel Hydrobates markhami. Marine Ornithology 51: 201 - 203

Received 24 March 2023, accepted 26 April 2023

Date Published: 2023/10/15
Date Online: 2023/10/10
Key words: plastics, rubber, seabirds, Pacific Ocean, marine debris, Hydrobates markhami, Hydrobates melania

Abstract

Man-made debris is a global problem for seabirds because it is ingested by many species. Markham's Storm Petrel Hydrobates markhami, which breeds in the Atacama Desert and is endemic to the Humboldt Current in the eastern South Pacific, has been poorly studied in this regard. Earlier studies found low levels of man-made debris in the species’ diet. We quantified the current frequency-occurrence of man-made debris in fledglings and adults of Markham’s Storm Petrel in Chile. We found that 16 of 25 fledglings and all adults contained man-made debris in their digestive tract, indicating the prevalence of man-made debris in this species’ diet is higher than previously reported. Additional work is needed to assess the importance of this finding to conservation efforts.

La basura es un problema global para las aves marinas, pues es ingerida por varias especies. La golondrina de mar negra Hydrobates markhami, anida en el desierto de Atacama en el sur-este del Pacífico, ha sido escasamente estudiada en este aspecto. Estudios previos encontraron bajos niveles de basura en la dieta de la especie. En este estudio, cuantificamos la frecuencia actual de basura en volantones y adultos de golondrina de mar negra en Chile. Encontramos que 16 de 25 volantones y todos los adultos contenían basura, indicando una prevalencia más alta que en el pasado. Se necesita más información para evaluar la importancia para la conservación de la especie.

References


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