> ## Content Index
> Fetch the complete content index at: https://intelligence.wildlandseco.com/llms.txt
> Use this file to discover other available public pages before exploring further.

# Hatchery temperature tracked turtle nest failure; rainfall did not here
- URL: https://intelligence.wildlandseco.com/2026-10-30-costa-rica-turtle-hatchery-temperature-rainfall/
- Published: 2026-10-30T13:27:26.000Z
- Updated: 2026-10-30T13:27:26.000Z
- Description: Four olive ridley nesting seasons reveal a locally actionable thermal signal and a useful null result.
- Author: Benjamin Worlund
- Tags: olive-ridley, hatchery, nesting-temperature, Wildlife, Oceans, Climate, Methods, #ecological-intelligence, #brief-2026-10-30, #global-radar, #peer-reviewed, #geo-latin-america-caribbean

Evidence

Peer-reviewed

Geography

Playa San Miguel, Costa Rica

System

Sea turtle nests; beach hatchery; temperature

## WHAT THE EVIDENCE SAYS

A 2019–2022 survey of relocated olive ridley hatchery nests found about 85% hatching success overall, except 70% in 2020\. In fitted models, sand temperature and nesting season were associated with nest failures, whereas rainfall was not significant. Mean observed sand temperature was 29.63°C.

## WHY IT MATTERS / OUR READ

Protection measures should be tested against measured nest conditions rather than a broad weather proxy. A null rainfall term here limits this model; it does not mean storms are irrelevant elsewhere.

## CAVEATS / UNCERTAINTY

One managed hatchery with relocated eggs is not an experiment comparing natural and artificial nesting, and hatching rate does not establish recruitment to adulthood.

## SOURCE

Conservation Science and Practice — Tovalin et al., 27 October 2026  
[View original evidence ↗](https://doi.org/10.1111/csp2.70438?ref=intelligence.wildlandseco.com)

From the Morning Brief · 2026-10-30

[Read the full Morning Brief →](https://intelligence.wildlandseco.com/morning-brief-2026-10-30/)