Diversity of the riparian vegetation of high Andean wetlands of the Junín region, Peru

• Published in: Ambiente e Agua - An Interdisciplinary Journal of Applied Science
• Main Authors: Chanamé-Zapata, Fernán Cosme, Custodio-Villanueva, María, Yaranga-Cano, Raúl Marino, Pantoja-Esquivel, Rafael Antonio
• Format: Article in Journal/Newspaper
• Language: English; Spanish; Portuguese
• Published: Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi) 2019
• Subjects: biodiversity indexes; floristic composition; high Andean wetlands; riparian vegetation; altiplano andino alto; composição florística; índices alfa-biodiversidade; vegetação ripária; Juncus arcticus
• Online Access: http://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/2111; https://doi.org/10.4136/ambi-agua.2271

The diversity of the riparian vegetation of five high Andean lagoons of the Junin region was evaluated between March and December of 2017. The sampling of the riparian vegetation was carried out by means of the transect method. The unidentified species were collected for later identification in the herbarium. The diversity was determined by floristic composition, abundance and frequency, and by species richness indices of Simpson and Shannon-Wiener. In the Pomacocha Lagoon, the floristic composition was represented by 43 species, distributed in 15 families, with the most abundant species being Aciachne pulvinata, Azorella crenata and Geranium sessiliflorum and the most frequent Aciachne pulvinata. In the Laguna Tragadero, the floristic composition was represented by 17 species, distributed in 10 families, with the most abundant species being Pennisetum clandestinum and Eleocharis sp and the most frequent Polypogon interruptus. In the Cucancocha Lagoon, the floristic composition was represented by 19 species, distributed in 7 families, with the most abundant species being Calamagrostis sp and Wernberia humbellata and the one of most frequent Carex ecuadorica. In the Incacocha Lagoon, the floristic composition was represented by 22 species, distributed in 11 families, with the most abundant and frequent species being Alchemilla pinnata. In the Ñahuinpuquio Lagoon, the floristic composition was represented by 20 species, distributed in 9 families, with the most abundant species being Pennisetum clandestinum and the most frequent species Pennisetum clandestinum, Juncus arcticus and Muhlenbergia andina. The results obtained contribute data on the diversity of riparian vegetation of high Andean wetlands in the Junin region, Peru. The diversity of the riparian vegetation of five high Andean lagoons of the Junin region was evaluated between March and December of 2017. The sampling of the riparian vegetation was carried out by means of the transect method. The unidentified species were collected for later identification in the herbarium. The diversity was determined by floristic composition, abundance and frequency, and by species richness indices of Simpson and Shannon-Wiener. In the Pomacocha Lagoon, the floristic composition was represented by 43 species, distributed in 15 families, with the most abundant species being Aciachne pulvinata, Azorella crenata and Geranium sessiliflorum and the most frequent Aciachne pulvinata. In the Laguna Tragadero, the floristic composition was represented by 17 species, distributed in 10 families, with the most abundant species being Pennisetum clandestinum and Eleocharis sp and the most frequent Polypogon interruptus. In the Cucancocha Lagoon, the floristic composition was represented by 19 species, distributed in 7 families, with the most abundant species being Calamagrostis sp and Wernberia humbellata and the one of most frequent Carex ecuadorica. In the Incacocha Lagoon, the floristic composition was represented by 22 species, distributed in 11 families, with the most abundant and frequent species being Alchemilla pinnata. In the Ñahuinpuquio Lagoon, the floristic composition was represented by 20 species, distributed in 9 families, with the most abundant species being Pennisetum clandestinum and the most frequent species Pennisetum clandestinum, Juncus arcticus and Muhlenbergia andina. The results obtained contribute data on the diversity of riparian vegetation of high Andean wetlands in the Junin region, Peru. Avaliou-se a diversidade da vegetação ripária de cinco lagos altos andinos da região de Junin entre março e dezembro de 2017. A amostragem da vegetação ripária foi realizada por meio do método de transectos. As espécies não identificadas foram coletadas para posterior identificação no herbário. A diversidade foi determinada pela composição florística, abundância e frequência e pelos índices de riqueza de espécies, Simpson e Shannon-Wiener. Na lagoa Pomacocha a composição florística foi representada por 43 espécies, distribuídas em 15 famílias, as espécies mais abundantes foram Aciachne pulvinata, Azorella crenata e Geranium sessiliflorum e a mais frequente Aciachne pulvinata. Na lagoa Tragadero a composição florística foi representada por 17 espécies, distribuídas em 10 famílias, as espécies mais abundantes foram Pennisetum clandestinum e Eleocharis sp e a mais frequente Polypogon interruptus. Na lagoa Cucancocha a composição florística foi representada por 19 espécies, distribuídos em 7 famílias, as espécies mais abundantes foram Calamagrostis sp e Wernberia humbellata e a mais frequente Carex ecuadorica. Na lagoa Incacocha a composição florística foi representada por 22 espécies, distribuídas em 11 famílias, sendo a espécie mais abundante e freqüente Alchemilla pinnata. Na lagoa Ñahuinpuquio a composição florística foi representada por 20 espécies em 9 famílias, sendo a espécie mais abundante Pennisetum clandestinum e as espécies mais freqüentes Pennisetum clandestinum, Juncus articus e Muhlenbergia andina. Os resultados obtidos contribuem com dados sobre a diversidade da vegetação ripária das áreas úmidas andinas da região de Junin, no Peru.