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Revue de presse et du net par le Pôle de partage des connaissances S&T de l'Office français de la biodiversité
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Human visitation disrupts natural determinants of breeding seabird communities on coral reef islands

 

Abstract: Coral Reef Islands (CRIs) support key colonies of tropical seabirds, whose long-term sustainability is under growing threat from climate change and small-scale, island-specific pressures such as invasive species or human disturbance. Unlike most compartments of reef ecosystems, CRI seabirds have been poorly studied from a biogeographical perspective, which questions the relevance of existing conservation policies. Here, we investigate the effects of ecological, geographical and anthropogenic drivers on the diversity and abundance of CRI seabird communities, using survey data acquired over the 2000–2023 period in 100 CRIs of New Caledonia, South-western Pacific.

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Tristan Berr, Alexandre Millon, Pascal Dumas, Poetea Guehenneuc, Fany Perez, Hélène De Méringo, Julien Baudat-Franceschi, Matthieu Le Corre, Éric Vidal, Global Ecology and Conservation,Volume 48, 2023, e02732, https://doi.org/10.1016/j.gecco.2023.e02732

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Effectiveness of management zones for recovering parrotfish species within the largest coastal marine protected area in Brazil - Scientific Reports

Effectiveness of management zones for recovering parrotfish species within the largest coastal marine protected area in Brazil - Scientific Reports | Biodiversité | Scoop.it

The establishment of multiple zones offering different protection levels within a Marine Protected Area (MPA) can minimize social conflicts while maintaining associated biodiversity benefits such as fish population replenishment. Parrotfishes are among one of the most ecologically important reef fishes; yet extremely overexploited worldwide. In this context, well-designed priority management areas allowing no fishing activity (no-take zones) could help recover fish species, such as parrotfishes, through a MPA zoning process.

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via @AquaParis_off "Cet article montre que les aires marines protégées du Brésil ont été très efficaces pour protéger certaines espèces de poissons perroquets. Les effectifs se portent bien mieux, ce qui encourage la création de telles zones."

Pereira, P.H.C., Araujo, J.C., Lima, G.V. et al. Effectiveness of management zones for recovering parrotfish species within the largest coastal marine protected area in Brazil. Sci Rep 12, 12232 (2022). https://doi.org/10.1038/s41598-022-15990-1

 
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Quels sont les 9 animaux qui pourraient nous aider à lutter contre le réchauffement climatique ?

Quels sont les 9 animaux qui pourraient nous aider à lutter contre le réchauffement climatique ? | Biodiversité | Scoop.it

D'après une étude publiée dans Nature Climate Change, certains groupes d'animaux sauvages – neuf au total – possèderaient un "effet multiplicateur" dans l'absorption du CO2 de l'atmosphère et le stockage du carbone au sein des écosystèmes naturels, contribuant à la lutte contre le réchauffement climatique. Mais les données scientifiques à la base de cette conclusion sont fragiles.

DocBiodiv's insight:

Schmitz, O.J., Sylvén, M., Atwood, T.B. et al. Trophic rewilding can expand natural climate solutions. Nat. Clim. Chang. (2023). https://doi.org/10.1038/s41558-023-01631-6

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