Latest News Latest News

The 2024 Newcomb Cleveland Prize celebrates cross-cultural research between western and Indigenous scientists

The award has been given to an interdisciplinary research team with the participation of scientists from the Doñana Biological Station – CSIC
The study looked into the evolutionary...

Enhacing pollinator conservation through landscape heterogeneity

Having 20% of semi-natural habitats is key for ensuring healthy pollinator populations in Europe. OBServ projectaimed to leverage pollinators and the ecosystem services they provide as a key model...

El Museo Casa de la Ciencia de Sevilla estrena hoy dos nuevas exposiciones sobre biodiversidad y plásticos

‘Plastisfera: vida y muerte en el antropoceno»’ abre los ojos a un grave problema ambiental: los 430 millones de toneladas de plástico que se producen al año en todo el mundo.

New study shows that seagulls transport hundreds of kilos of plastic from landfills into natural reserves

Researchers from the Doñana Biological Station (EBD-CSIC) have developed a plastic deposition model based on the diet and movement of gulls monitored by GPS telemetry, while feeding in landfills in...

Scientific evidence is undeniable: aquifer exploitation is causing serious impacts on the most iconic national park in Spain

A scientific team from the Doñana Biological Station and the Geological and Mining Institute, institutes of the Spanish National Research Council, has reviewed more than 70 studies and demonstrates...

Asset Publisher Asset Publisher


Humans and scavenging raptors facilitate Argentine ant invasion in Doñana National Park

Humans and scavenging raptors facilitate Argentine ant invasion in Doñana National Park

Biotic resistance by native communities could have a role in the spread of invasive species. Native communities with higher species richness should be less susceptible to invasion by exotic species than those with fewer component species, interspecific interactions acting as biotic barriers by creating a highly competitive environment. This seems to be the case in the invasion of the Argentine ant, Linepithema humile, but only when the environment is unfavorable for the survival of the invader. The progress of Argentine ant invasion through favorable and unfavorable habitats of Doñana National Park was studied across three temporal snapshots covering three decades (1992, 2000, 2016). Biotic resistance of the native community was assessed using species richness, as well as dominance and community structure. The role of abiotic factors (quality of surrounding habitat and spatial variables) and of potential vectors of Argentine ant dispersal across unfavorable areas was also explored. No evidence of biotic resistance was found. On the contrary, invasion proceeded from trees with higher ant species richness, probably because those trees are larger and provide more resources and better protection from aridity. Furthermore, evidence was found that the invasion of new trees across a matrix of unfavorable habitat could be influenced not only by humans, but also by scavenging avian predators, which could act as vectors of ant dispersal through transport of carrion also exploited by the ants. Such leapfrog expansion through mobile predators could represent an overlooked mechanism that would enrich our understanding of invasion dynamics and provide potential opportunities for management of invasive species. informacion[at] Castro-Cobo et al (2019) Humans and scavenging raptors facilitate Argentine ant invasion in Doñana National Park: no counter-effect of biotic resistance. Biol Invasions 21:2221–2232. Doi 10.1007/s10530-019-01971-5