Impacto de los senderos turísticos, ganadería y vegetación residente sobre la invasión de plantas exóticas en los ecosistemas altoandinos
Abstract: Invasion by alien plants is one of the main threats that mountain ecosystems are currently facing. In the Arid Central Andes of Mendoza there are very few studies that have assessed plant invasions on alpine vegetation. For example, a recent study conducted by the Mountain Invasions Resear...
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| Autores principales: | , , , , , |
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| Publicado: |
2019
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| Materias: | |
| Acceso en línea: | https://bdigital.uncu.edu.ar/fichas.php?idobjeto=14260 |
| Sumario: | Abstract: Invasion by alien plants is one of the main threats that mountain ecosystems are currently facing. In the Arid Central Andes of Mendoza there are very few studies that have assessed plant invasions on alpine vegetation. For example, a recent study conducted by the Mountain Invasions Research Network (MIREN, www.mountaininvasions.org), have recorded over 40 non-native plants in the region, highlighting the importance of increasing our knowledge on plant invasions in the area. Some of the plant communities currently threatened includes the high altitude grasslands and alpine meadows,which act as important biodiversity reservoirs and play a critical role in the water cycle. In this project, I propose an integrative analysis of plant invasions in the Arid Central Andes of Mendoza. First, I will assess the effects of anthropogenic disturbance, including trails and grazing, on non-native plants cover and distribution. Second, I will assess the level of invasibility of this mountain ecosystem, by examining the relationship between non-native plant cover and native vegetation community attributes (i.e. native richness, cover). To accomplish this, I propose to survey touristic trails in three protected areas of Mendoza Andes,recording native and exotic vegetation and the density of cattle dungs. By analyzing the data obtained, I expect to find, on one hand the relationship between touristic use and grazing with plant invasions. On the other, the level of invasibility of resident plant communities. This work will increase our knowledge of the processes underlying biological invasions in the area. This project is part of the MIREN international network, so the results will also contribute to global assessments of mountain plantinvasions. Finally, the information obtained here could be an important tool to guide managers? decisions, helping in the conservation and the sustainable management of the area |
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