Chase-away evolution maintains imperfect mimicry in a brood parasite-host system despite rapid evolution of mimics.
Nat Ecol Evol
; 7(12): 1978-1982, 2023 Dec.
Article
en En
| MEDLINE
| ID: mdl-37872417
ABSTRACT
We studied a brood parasite-host system (the cuckoo finch Anomalospiza imberbis and its host, the tawny-flanked prinia Prinia subflava) to test (1) the fundamental hypothesis that deceptive mimics evolve to resemble models, selecting in turn for models to evolve away from mimics ('chase-away evolution') and (2) whether such reciprocal evolution maintains imperfect mimicry over time. Over only 50 years, parasites evolved towards hosts and hosts evolved away from parasites, resulting in no detectible increase in mimetic fidelity. Our results reflect rapid adaptive evolution in wild populations of models and mimics and show that chase-away evolution in models can counteract even rapid evolution of mimics, resulting in the persistence of imperfect mimicry.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Parásitos
/
Pinzones
/
Gorriones
Límite:
Animals
Idioma:
En
Revista:
Nat Ecol Evol
Año:
2023
Tipo del documento:
Article
País de afiliación:
Reino Unido