Joshua Cinner

Oct 7, 2024 | theconversation.com | Joshua Cinner |Iain R. Caldwell

Ocean fish populations have in the past half-century, and climate change is make the problem worse. Governments have designated “marine protected areas”, where where human activity is constrained to protect ocean life. But have these efforts worked? About 8% of Earth’s oceans are protected, including about 3% where fishing is banned altogether. Our new study of nearly 2,600 tropical coral reefs around the world is the first to examine whether these areas have helped fish populations.

Jul 18, 2024 | nature.com | Joshua Cinner |Diego R. Barneche |Iain R. Caldwell |David Mouillot |James Robinson |Alexandre C. Siqueira | +1 more

AbstractFish fecundity scales hyperallometrically with body mass, meaning larger females produce disproportionately more eggs than smaller ones. We explore this relationship beyond the species-level to estimate the “reproductive potential” of 1633 coral reef sites distributed globally. We find that, at the site-level, reproductive potential scales hyperallometrically with assemblage biomass, but with a smaller median exponent than at the species-level.

May 15, 2024 | nature.com | Jayden Engert |Joshua Cinner

Correction to: Nature https://doi.org/10.1038/s41586-024-07303-5 Published online 10 April 2024This article was originally published as an open-access paper under a Creative Commons Attribution 4.0 International license (© The Author(s)). It is now available under a standard Springer Nature license, © The Author(s), under exclusive licence to Springer Nature Limited. The error has been corrected in the HTML and PDF versions of the article.

Apr 10, 2024 | nature.com | Jayden Engert |Joshua Cinner

AbstractRoads are expanding at the fastest pace in human history. This is the case especially in biodiversity-rich tropical nations, where roads can result in forest loss and fragmentation, wildfires, illicit land invasions and negative societal effects1,2,3,4,5. Many roads are being constructed illegally or informally and do not appear on any existing road map6,7,8,9,10; the toll of such ‘ghost roads’ on ecosystems is poorly understood.