info:eu-repo/semantics/article
Negative impacts of dominance on bee communities: Does the influence of invasive honey bees differ from native bees?
Fecha
2021-12Registro en:
Garibaldi, Lucas Alejandro; Pérez Méndez, Néstor; Cordeiro, Guaraci; Hughes, Alice C.; Orr, Michael C.; et al.; Negative impacts of dominance on bee communities: Does the influence of invasive honey bees differ from native bees?; Ecological Society of America; Ecology; 102; 12; 12-2021; 1-8
0012-9658
CONICET Digital
CONICET
Autor
Garibaldi, Lucas Alejandro
Pérez Méndez, Néstor
Cordeiro, Guaraci
Hughes, Alice C.
Orr, Michael C.
Santos, Isabel Alves dos
Freitas, Breno M.
Freitas de Oliveira, Favízia
Lebuhn, Gretchen
Bartomeus, Ignasi
Aizen, Marcelo Adrian
Andrade, Patricia
Blochtein, Betina
Boscolo, Danilo
Drumond, Patricia
Gaglianone, Maria C.
Gemmill Herren, Barbara
Halinski, Rosana
Krug, Cristiane
Maues, Marcia
Piedade Kiill, Lucia
Pinheiro, Mardiore
Pires, Carmen
Felipe Viana, Blandina
Resumen
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 subspecies 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 single 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 markedly 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.