Ficha de avaliação EICAT
Arundo donax
MR · Alto
Avaliação histórica recuperada de registros do SIGEEI. A estrutura e os campos foram preservados; a confirmação permanece pendente.
Identificação e síntese
Taxonomia registrada
Classificação canônica recuperada da integração com o GBIF. O sistema explicita os níveis que a própria resposta do GBIF não informa.
Avaliação de impactos
1. Redução no desempenho de indivíduos da biota nativa
Resposta: Sim
Mecanismos selecionados: (1) Competição
Evidências por mecanismo
Dominates riparian areas and can locally exclude native species.; The tall reed Arundo donax (Giant Reed) also transforms riparian vegetation owing to its greater stature than any native riparian vegetation except trees. The extent or severity of transformation of native vegetation has not been well described, with a few exceptions (e.g. Prosopis spp.; van den Berg 2010; Shackleton et al. 2015), but impacts are widely evident, especially in riparian environments. (O’Connor and van Wilgen, 2020)
Referências: Zengeya TA et al. (2020) An Evaluation of the Impacts of Alien Species on Biodiversity in South Africa Using Different Assessment Methods. In B. W. van Wilgen et al. (eds.), Biological Invasions in South Africa, Invading Nature - Springer Series in Invasion Ecology 14, https://doi.org/10.1007/978-3-030-32394-3_17; O’Connor and van Wilgen (2020) The Impact of Invasive Alien Plants on Rangelands in South Africa. In B. W. van Wilgen et al. (eds.), Biological Invasions in South Africa, Invading Nature - Springer Series in Invasion Ecology 14, https://doi.org/10.1007/978-3-030-32394-3_16
2. Declínio no tamanho populacional de espécie nativa
Resposta: Sim
Mecanismos selecionados: (1) Competição
Evidências por mecanismo
There are six grass species that have had EICAT assessments done at a national scale for South Africa, with Arundo donax (Giant Reed) and Glyceria maxima (Reed Meadow Grass) evaluated as having major impacts (Visser et al. 2017; Nkuna et al. 2018; VK Nkuna, unpublished data). These two species have been implicated in competitively displacing native species.
Referências: Zengeya TA et al. (2020) An Evaluation of the Impacts of Alien Species on Biodiversity in South Africa Using Different Assessment Methods. In B. W. van Wilgen et al. (eds.), Biological Invasions in South Africa, Invading Nature - Springer Series in Invasion Ecology 14, https://doi.org/10.1007/978-3-030-32394-3_17
3. Extinção local de população nativa
Resposta: Sim
Mecanismos selecionados: (1) Competição
Evidências por mecanismo
EICAT feita por Zengeya et al. (2020)
Referências: Zengeya TA et al. (2020) An Evaluation of the Impacts of Alien Species on Biodiversity in South Africa Using Different Assessment Methods. In B. W. van Wilgen et al. (eds.), Biological Invasions in South Africa, Invading Nature - Springer Series in Invasion Ecology 14, https://doi.org/10.1007/978-3-030-32394-3_17
4. Reversibilidade da extinção local após remoção do táxon
Resposta: Reversível
Mecanismos selecionados: (1) Competição
Evidências por mecanismo
EICAT feita por Zengeya et al. (2020)
Referências: Zengeya TA et al. (2020) An Evaluation of the Impacts of Alien Species on Biodiversity in South Africa Using Different Assessment Methods. In B. W. van Wilgen et al. (eds.), Biological Invasions in South Africa, Invading Nature - Springer Series in Invasion Ecology 14, https://doi.org/10.1007/978-3-030-32394-3_17