Luciana Motta

National Scientific and Technical Research Council | conicet · CENAC, Parque Nacional Nahuel Huapi

Los disturbios que ocasiona el ser humano pueden alterar el funcionamiento de los ecosistemas e interacciones claves como la interacción planta-animal. Por ejemplo, la depredación post-dispersión de semillas determina el establecimiento de plantas en muchos ecosistemas terrestres y puede afectar positiva o negativamente la composición de la comunid...

Post-dispersal seed predation is a key process regulating plant population dynamics and community composition. Because food preference (i.e., seed species selection) can interact with habitat features such as vegetation characteristics, integrating both is important for a better understanding of the processes that drive plant community structure. I...

Herbivory by non-native species can create strong direct and indirect effects on plant and arthropods communities that can potentially cross ecosystem boundaries. Yet, the cross-ecosystems impacts of non-native species are poorly understood. We took advantage of ongoing invasions by non-native ungulates in Patagonia, Argentina, to examine their cro...

Functional richness patterns of lake chironomid assemblages have been increasingly studied in the Northern Hemisphere, but so far there are no studies in Southern Hemisphere lakes. Present-day chironomid assemblages were studied from 40 lakes in NW Patagonia to investigate functional and taxonomic diversity and its relationships with the environmen...

Laguna Las Vizcachas is a remote lake located in the southern Patagonian steppe east of the Andes, in a key area to study the effects of the climate, especially the mode and intensity of the mid-latitude westerlies which are the dominant climate drivers in this region. Pollen, diatom and chironomid records combined with sedimentological and geochem...

Remote lakes of northern Patagonia are ideal sites for examining climate- and non-climate-driven changes in aquatic ecosystems because there is little evidence of human influence and there is no detailed information on recent environmental trends in the region (i.e. the last 200 years). Subfossil chironomids (Diptera: Chironomidae) are useful paleo...

Los Quironómidos subfósiles (Insecta: Diptera) son comúnmente utilizados como proxy biológico en estudios de reconstrucción ambiental. En Patagonia Argentina, el conocimiento taxonómico de este grupo aún es escaso, por lo que es importante profundizar en estudios de este tipo para la región. Ampliar el conocimiento taxonómico permitirá seguir avanz...