Comparación florística y estado trófico basado en plantas indicadoras de lagunas costeras de la región de La Araucanía, Chile
2008; Volume: 18; Issue: 1 Linguagem: Inglês
ISSN
1667-782X
AutoresEnrique Hauenstein, Fernando Peña‒Cortés, Carlos Bertrán, Jaime Tapia, Roberto Schlatter,
Tópico(s)Plant Stress Responses and Tolerance
ResumoFloristic comparison and trophic condition based on indicator species in coastal lagoons of the Araucanian Region, Chile: This study describes and analyses plant species diversity and identifies indicator species for nitrogen eutrophization in four coastal lagoons in the Araucanian Region, Chile. A total of 82 vascular macrophyte species were identified. Tromen lagoon has the highest species richness (45 taxa), followed by Patagua and Peule with 42 species each, while only 36 were found in Puyehue. Patagua and Peule have the most similar flora, while Puyehue is the most dissimilar. Aloctonous species predominate in all four lakes (more than 47% being introduced species), and the most common life form are the hemicryptophytes with 40 species, indicating a strong human impact on their lakeshores. Patagua lagoon has the greatest number of eutrophication indicators (8 species), showing a high trophic level. Puyehue, on the other hand, has only three, coinciding with the lowest species richness, so its trophic level should be lower.
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