Negative impacts of dominance on bee communities: Does the influence of invasive honey bees differ from native bees?

Invasive species can reach high abundances and dominate native environments. One of the most impressive examples of ecological invasions is the spread of the African sub-species of the honey bee throughout the Americas, starting from its introduction in a single locality in Brazil. The invasive hone...

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Detalles Bibliográficos
Autores: GARIBALDI, L. A, PÉREZ-MÉNDEZ, N., CORDEIRO, G. D., HUGHES, A., ORR, M., SANTOS, I. A. dos, FREITAS, B. M., OLIVEIRA, F. F. de, LEBUHN, G., BARTOMEUS, I., AIZEN, M. A., ANDRADE, P. B., BLOCHTEIN, B., BOSCOLO, D., DRUMOND, P. M., GAGLIANONE, M. C., HERREN, B. G., HALINSKI, R., KRUG, C., MAUES, M. M., KIILL, L. H. P., PINHEIRO, M., PIRES, C. S. S., VIANA, B. F.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:Brasil
Institución:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
Repositorio:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Idioma:inglés
OAI Identifier:oai:www.alice.cnptia.embrapa.br:doc/1135312
Acceso en línea:http://www.alice.cnptia.embrapa.br/alice/handle/doc/1135312
Access Level:acceso abierto
Palabra clave:Comunidade das abelhas
Domínio das abelhas
Dominância
Espécies exóticas
Abelha
Apis Mellifera
Polinização
Pollinators
Dominance (genetics)
Ecological invasion
Invasive species
Descripción
Sumario:Invasive species can reach high abundances and dominate native environments. One of the most impressive examples of ecological invasions is the spread of the African sub-species of the honey bee throughout the Americas, starting from its introduction in a single locality in Brazil. The invasive honey bee is expected to more negatively impact bee community abundance and diversity than native dominant species, but this has not been tested previously. We developed a comprehensive and systematic bee sampling scheme, using a protocol deploying 11,520 pan traps across regions and crops for three years in Brazil. We found that invasive honey bees are now the ingle most dominant bee species. Such dominance has not only negative consequences for abundance and species richness of native bees but also for overall bee abundance (i.e., strong ?numerical? effects of honey bees). Contrary to expectations, honey bees did not have stronger negative impacts than other native bees achieving similar levels of dominance (i.e., lack of negative ?identity? effects of honey bees). These effects were remarkably consistent across crop species, seasons and years, and were independent from land-use effects. Dominance could be a proxy of bee community degradation and more generally of the severity of ecological invasions. Keywords: Apis mellifera, dominance, exotic species, invasion, pollinators.

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