Defaunation impacts on the carbon balance of tropical forests.
adaptación
adaptation
animación del ciclo del carbono
animating the carbon cycle
biomasa
biomass
caza
climate change mitigation
exploitation
explotación
hunting
mitigación del cambio climático
sustainability
sustentabilidad
zoogeochemistry
zoogeoquímica
Journal
Conservation biology : the journal of the Society for Conservation Biology
ISSN: 1523-1739
Titre abrégé: Conserv Biol
Pays: United States
ID NLM: 9882301
Informations de publication
Date de publication:
28 Oct 2024
28 Oct 2024
Historique:
received:
06
04
2024
accepted:
14
08
2024
medline:
28
10
2024
pubmed:
28
10
2024
entrez:
28
10
2024
Statut:
aheadofprint
Résumé
The urgent need to mitigate and adapt to climate change necessitates a comprehensive understanding of carbon cycling dynamics. Traditionally, global carbon cycle models have focused on vegetation, but recent research suggests that animals can play a significant role in carbon dynamics under some circumstances, potentially enhancing the effectiveness of nature-based solutions to mitigate climate change. However, links between animals, plants, and carbon remain unclear. We explored the complex interactions between defaunation and ecosystem carbon in Earth's most biodiverse and carbon-rich biome, tropical rainforests. Defaunation can change patterns of seed dispersal, granivory, and herbivory in ways that alter tree species composition and, therefore, forest carbon above- and belowground. Most studies we reviewed show that defaunation reduces carbon storage 0-26% in the Neo- and Afrotropics, primarily via population declines in large-seeded, animal-dispersed trees. However, Asian forests are not predicted to experience changes because their high-carbon trees are wind dispersed. Extrapolating these local effects to entire ecosystems implies losses of ∼1.6 Pg CO Impactos de la defaunación sobre el balance de carbono en los bosques tropicales La urgencia por mitigar y adaptarse al cambio climático requiere que se entiendan las dinámicas del ciclo del carbono. Es común que los modelos del ciclo del carbono se enfoquen en la vegetación, pero estudios recientes sugieren que los animales pueden tener un papel significativo en las dinámicas del carbono bajo ciertas circunstancias, lo que tiene el potencial para mejorar la efectividad de las soluciones basadas en la naturaleza para mitigar el cambio climático. Sin embargo, todavía no está clara la relación entre los animales, las plantas y el carbono. Exploramos las interacciones complejas entre la defaunación y el carbono ambiental en el bioma más biodiverso y más rico en carbono de la Tierra: los bosques tropicales. La defaunación puede cambiar los patrones de dispersión de semillas, granivoría y herbivoría de manera que alteran la composición de especies de árboles y, por lo tanto, el carbono boscoso encima y debajo de la tierra. La mayoría de los estudios que revisamos muestran que la defaunación reduce el almacenamiento de carbono 0‐26% en las zonas neotropical y afrotropical, principalmente por medio de las declinaciones poblacionales de los árboles con semillas grandes dispersadas por animales. Sin embargo, no hay pronósticos de que los bosques asiáticos sufran cambios porque sus árboles de carbono alto tienen dispersión por viento. Si extrapolamos estos efectos locales a ecosistemas completos, hay una pérdida explícita equivalente de ∼1.6 Pg CO
Autres résumés
Type: Publisher
(spa)
Impactos de la defaunación sobre el balance de carbono en los bosques tropicales La urgencia por mitigar y adaptarse al cambio climático requiere que se entiendan las dinámicas del ciclo del carbono. Es común que los modelos del ciclo del carbono se enfoquen en la vegetación, pero estudios recientes sugieren que los animales pueden tener un papel significativo en las dinámicas del carbono bajo ciertas circunstancias, lo que tiene el potencial para mejorar la efectividad de las soluciones basadas en la naturaleza para mitigar el cambio climático. Sin embargo, todavía no está clara la relación entre los animales, las plantas y el carbono. Exploramos las interacciones complejas entre la defaunación y el carbono ambiental en el bioma más biodiverso y más rico en carbono de la Tierra: los bosques tropicales. La defaunación puede cambiar los patrones de dispersión de semillas, granivoría y herbivoría de manera que alteran la composición de especies de árboles y, por lo tanto, el carbono boscoso encima y debajo de la tierra. La mayoría de los estudios que revisamos muestran que la defaunación reduce el almacenamiento de carbono 0‐26% en las zonas neotropical y afrotropical, principalmente por medio de las declinaciones poblacionales de los árboles con semillas grandes dispersadas por animales. Sin embargo, no hay pronósticos de que los bosques asiáticos sufran cambios porque sus árboles de carbono alto tienen dispersión por viento. Si extrapolamos estos efectos locales a ecosistemas completos, hay una pérdida explícita equivalente de ∼1.6 Pg CO
Types de publication
Journal Article
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
e14414Informations de copyright
© 2024 Society for Conservation Biology.
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