Periodical cicadas disrupt trophic dynamics through community-level shifts in avian foraging.
Science
; 382(6668): 320-324, 2023 10 20.
Article
en En
| MEDLINE
| ID: mdl-37856588
ABSTRACT
Once every 13 or 17 years within eastern North American deciduous forests, billions of periodical cicadas concurrently emerge from the soil and briefly satiate a diverse array of naive consumers, offering a rare opportunity to assess the cascading impacts of an ecosystem-wide resource pulse on a complex food web. We quantified the effects of the 2021 Brood X emergence and report that more than 80 bird speciesâ¯opportunistically switched their foraging to include cicadas, releasing herbivorous insects from predation and essentially doubling both caterpillar densities and accumulated herbivory levels on host oak trees. These short-lived but massive emergence events help us to understand how resource pulses can rewire interaction webs and disrupt energy flows in ecosystems, with potentially long-lasting effects.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Aves
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Cadena Alimentaria
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Herbivoria
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Hemípteros
Límite:
Animals
Idioma:
En
Año:
2023
Tipo del documento:
Article