Study

Nesting characteristics of olive ridley turtles (Lepidochelys olivacea) on El Naranjo Beach, Nayarit, Mexico

  • Published source details Hart C.E., Ley-Quiñonez C., Maldonado-Gasca A., Zavalanorzagaray A. & Alberto Abreu-Grobois F. (2014) Nesting characteristics of olive ridley turtles (Lepidochelys olivacea) on El Naranjo Beach, Nayarit, Mexico. Herpetological Conservation and Biology, 9, 524-534.

Actions

This study is summarised as evidence for the following.

Action Category

Relocate nests/eggs for artificial incubation: Sea turtles

Action Link
Reptile Conservation
  1. Relocate nests/eggs for artificial incubation: Sea turtles

    A study in 1993–2010 on four sandy beaches in a single bay in Nayarit, Mexico (Hart et al. 2014) found that at least half of artificially incubated olive ridley turtle Lepidochelys olivacea nests hatched successfully each year. Over 18 seasons of artificially incubating olive ridley turtle nests, hatching success was 50–59% in two years, 60–69% in five years, 70–79% in three years, 80–89% in six years and >90% in two years. Number of hatchlings released varied between 2,555 in 1997 and 23,467 in 2006. Four turtle nesting beaches (2–8 km long) were monitored during the peak nesting season (July–November) for two nights/week in 1993–1999 and seven nights/week in 2000–2010. Nests were collected (1.4 nests/day) and artificially incubated in polystyrene boxes (40 x 30 x 50 cm, wall thickness: 2 cm; see original paper for details) in an indoor facility on one of the beaches. Hatching success was evaluated once 20 hatchlings had emerged by calculating the proportion of live and dead neonates.

    (Summarised by: Katie Sainsbury)

Output references
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 19

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.


Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust