Substrate influences human removal of freshwater turtle nests in the eastern Brazilian Amazon-Reference-Cited by-同舟云学术

Substrate influences human removal of freshwater turtle nests in the eastern Brazilian Amazon

Published:2020-05-15 Issue:1 Volume:10 Page:
ISSN:2045-2322
Container-title:Scientific Reports
language:en
Short-container-title:Sci Rep

Author:

Michalski Fernanda,Norris Darren,Quintana Itxaso,Valerio Andressa,Gibbs James P.

Abstract

AbstractSubstrate type determines nesting success and fitness in turtles and is a critical consideration for nesting area protection and restoration. Here, we evaluated the effect of substrate on nest removal by humans in the eastern Brazilian Amazon. We analyzed substrate composition and fate of 216 P. unifilis nests along 88 km of rivers. River segment and substrate type were the most important predictors of nest removal by humans. We found up to 36% lower removal of nests in fine sand and experimental results support the hypothesis that wind more often obscures tracks of nesting females in substrates with more (>66%) fine sand. Our findings are useful for informing the restoration of artificial nesting areas across the Amazon, as nesting area substrates should be selected not only to maintain hatchling sex ratios, but also to minimize nest removal by humans.

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

Link

http://www.nature.com/articles/s41598-020-65074-1.pdf

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