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Global analysis of anthropogenic debris ingestion by sea turtles

Citation

Schuyler, Q and Hardesty, BD and Wilcox, C and Townsend, K, Global analysis of anthropogenic debris ingestion by sea turtles, Conservation Biology, 28, (1) pp. 129-139. ISSN 0888-8892 (2014) [Refereed Article]


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Copyright Statement

Copyright 2013 The Authors. Licensed under Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)

DOI: doi:10.1111/cobi.12126

Abstract

Ingestion of marine debris can have lethal and sublethal effects on sea turtles and other wildlife. Although researchers have reported on ingestion of anthropogenic debris by marine turtles and implied incidences of debris ingestion have increased over time, there has not been a global synthesis of the phenomenon since 1985. Thus, we analyzed 37 studies published from 1985 to 2012 that report on data collected from before 1900 through 2011. Specifically, we investigated whether ingestion prevalence has changed over time, what types of debris are most commonly ingested, the geographic distribution of debris ingestion by marine turtles relative to global debris distribution, and which species and life-history stages are most likely to ingest debris. The probability of green (Chelonia mydas) and leatherback turtles (Dermochelys coriacea) ingesting debris increased significantly over time, and plastic was the most commonly ingested debris. Turtles in nearly all regions studied ingest debris, but the probability of ingestion was not related to modeled debris densities. Furthermore, smaller, oceanic-stage turtles were more likely to ingest debris than coastal foragers, whereas carnivorous species were less likely to ingest debris than herbivores or gelatinovores. Our results indicate oceanic leatherback turtles and green turtles are at the greatest risk of both lethal and sublethal effects from ingested marine debris. To reduce this risk, anthropogenic debris must be managed at a global level.

Item Details

Item Type:Refereed Article
Keywords:Caretta caretta, Dermochelys coriacea, Eretmochelys imbricata, garbage, Lepidochelys kempii, litter, rubbish, trash
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Behavioural Ecology
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Marine Flora, Fauna and Biodiversity
Author:Hardesty, BD (Dr Britta Hardesty)
Author:Wilcox, C (Dr Chris Wilcox)
ID Code:119447
Year Published:2014
Web of Science® Times Cited:44
Deposited By:Centre for Ecology and Biodiversity
Deposited On:2017-08-01
Last Modified:2017-09-05
Downloads:8 View Download Statistics

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