Jack-of-all-trades paradigm meets long-term data: Generalist herbivores are more widespread and locally less abundant.

 

 

 

Título: Jack-of-all-trades paradigm meets long-term data: Generalist herbivores are more widespread and locally less abundant.
Identificador de recurso: https://onlinelibrary.wiley.com
Fecha: 2022-03-29
Autor: Sudta, Chanchanok; Salcido, Danielle M.; Forister, Matthew L.; Walla, Thomas R.; Villamarín-Cortez, Santiago; Dyer, Lee A.
Otros colaboradores:  
Editorial: Ecology Letters
Derechos: Acceso Abierto

 

Descripción Insect herbivores are relatively specialized. Why this is so is not clear. We examine assumptions about associations between local abundance and dietary specialization using an 18-year data set of caterpillar–plant interactions in Ecuador. Our data consist of caterpillar–plant associations and include standardized plot-based samples and general collections of caterpillars, allowing for diet breadth and abundance estimates across spatial scales for 1917 morphospecies. We find that more specialized caterpillars are locally more abundant than generalists, consistent with a key component of the ‘jack of all trades, master of none’ hypothesis. As the diet breadth of species increased, generalists were not as abundant in any one location, but they had broader occupancy across the landscape, which is a pattern that could reflect high plant beta diversity and is consistent with an alternative neutral hypothesis. Our finding that more specialized species can be both rare and common highlights the ecological complexity of specialization.
Claves  
Relación e-ISSN: 1461-0248
Cobertura EC

 

Idioma en
Volumen 25 (3)
Formato pdf
Tipo de recurso texto
Fuente https://doi.org/10.1111/ele.13972
Descarga https://doi.org/10.1111/ele.13972