Home Institution
Rice University
Publication Date
Spring 2018
Abstract
Ecuador is one of the most biodiverse places on the planet, and many of the species in the region are found nowhere else in the world. The cloud forest is particularly diverse because the mountainous terrain isolates populations and changes in elevation create a wide variety of habitats. Cerro Mayordomo is a relatively unexplored mountain in the cloud forest of Tungurahua, Ecuador. It is known to have very high levels of endemism and several new species have been discovered there, but the biodiversity of angiosperms on the mountain has never been quantified. In this study, 5x5 m quadrants were established on 3 transects at varying altitudes. Trees and orchids from these quadrants were collected and characterized. A total 35 tree morphospecies from at least 13 families were collected, along with 11 orchid morphospecies from 8 genera. Estimated tree and orchid species diversity decreased with altitude, but observed diversity for orchids was highest at the highest altitude plots. There was no orchid species overlap between altitudes, and very little tree overlap as well. There was also no significant correlation was found between altitude, canopy cover, DBH, or orchid-tree interactions. This study provides the first baseline measure of angiosperm biodiversity on Cerro Mayordomo. Many interesting species were encountered, including a Maxillaria species that has not yet been published and a Stelis species that has not been previously described on Mayordomo.
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Ecuador es uno de los lugares más biodiversos del mundo, y muchas especias de Ecuador no existen en cualquier otro lugar. El bosque nublado es especialmente diverso porque las montañas aíslan poblaciones y elevaciones diferentes crean una variedad de hábitats. Cerro Mayordomo es una montaña relativamente inexplorada en el bosque nublado de Tungurahua, Ecuador. Tiene niveles muy altos de endemismo, y algunas especies nuevas fueron descubiertas allá, pero la biodiversidad de angiospermas nunca ha sido cuantificado. En este estudio, cuadrantes de 5 por 5 metros eran establecidos en 3 transectos en altitudes diferentes. Arboles y orquídeas de los cuadrantes eran colectados y caracterizados. Un total de 35 morphoespecies de 13 familias de arboles y 11 morphoespecies de 8 generos de orquídeas eran coleccionadas. La diversidad estimada de arboles y orquídeas disminuye con altitud, pero diversidad observada de orquídeas fue más alta en el transecto más alto. No había repetición de las mismas especies de orquídeas en transectos diferentes, y muy poco repetición de arboles en transectos diferentes. También no había correlación significativa entre altitud, cobertura del dosel, DAP, o interacciones entre arboles y orquídeas. Este estudio forma el primer base de entendimiento sobre biodiversidad de angiospermas en Cerro Mayordomo. Encontraba muchas especies interesantes, incluso una Maxillaria no publicado y un Stelis no encontrado antes en Cerro Mayordomo.
Disciplines
Animal Sciences | Biodiversity | Biology | Forest Biology | Forest Sciences | Latin American Studies | Other Animal Sciences | Other Forestry and Forest Sciences | Zoology
Recommended Citation
Matsuda, Ella, "Blooming Mountains of Biodiversity: An Investigation of Angiosperms on Cerro Mayordomo, Tungurahua, Ecuador" (2018). Independent Study Project (ISP) Collection. 2783.
https://digitalcollections.sit.edu/isp_collection/2783
Included in
Biodiversity Commons, Biology Commons, Forest Biology Commons, Latin American Studies Commons, Other Animal Sciences Commons, Other Forestry and Forest Sciences Commons, Zoology Commons
Program Name
Ecuador: Comparative Ecology and Conservation