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Vegetation, bird and soundscape characterization: a case study in Braulio Carrillo National Park, Costa Rica.
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- Author(s): Retamosa Izaguirre, Mónica Isabel1 ; Sequeira, David Segura1 ; Barrantes-Madrigal, Jimmy1 ; Spínola Parallada, Manuel1 ; Ramírez-Alán, Óscar1
- Source:
Biota Colombiana. ene-jun2021, Vol. 22 Issue 1, p57-73. 17p.- Subject Terms:
- Source:
- Additional Information
- Alternate Title: Caracterización de la vegetación, aves y paisajes sonoros: un caso de estudio en el Parque Nacional Braulio Carrillo, Costa Rica.
- Subject Terms:
- Abstract: We assessed the structural complexity of vegetation, birds and soundscapes in two areas of Braulio Carrillo National Park, Costa Rica, with different road exposure, as baseline information for conservation and management. We measured vegetation structure complexity, surveyed birds and recorded soundscapes in an area adjacent to the National Highway 32 (Quebrada) and another area 20 km away (Ceibo). Quebrada presented a more open forest structure and lower density of trees and shrubs; lower evenness and higher acoustic complexity, higher bioacoustic activity and sound pressure level; higher bird abundance and richness. Ceibo showed a higher density of trees and shrubs, higher complexity of vegetation structure, higher proportion of biophonies than anthrophonies, and an acoustic community with higher diversity and entropy. The study sites differed in characteristics of their bird communities in an unexpected way; these differences appear to be mostly influenced by the structure and complexity of the vegetation surrounding the road. However, the soundscapes seemed to properly reflect the habitat condition, and are promising for evaluating the ecological condition of a site. [ABSTRACT FROM AUTHOR]
- Abstract: Evaluamos la complejidad estructural de la vegetación, las aves y los paisajes sonoros en dos áreas del Parque Nacional Braulio Carrillo, Costa Rica, con diferente exposición a carreteras, como información de base para la conservación y el manejo. Medimos la complejidad estructural de la vegetación, registramos las aves y grabamos los paisajes sonoros en un área adyacente a la Carretera Nacional 32 (Quebrada) y otra área a 20 km (Ceibo). Quebrada presentó una estructura forestal más abierta y menor densidad de árboles y arbustos, menor equitatividad y mayor complejidad acústica, mayor actividad bioacústica y nivel de presión sonora y mayor abundancia y riqueza de aves. Ceibo mostró una mayor densidad de árboles y arbustos, mayor complejidad de la estructura de la vegetación, mayor proporción de biofonías que antrofonías, y una comunidad acústica con mayor diversidad y entropía. Los sitios de estudio variaron en las características de sus comunidades de aves de manera imprevista; estas diferencias parecen estar mayormente influenciadas por la estructura y complejidad de la vegetación que rodea la carretera. Sin embargo, los paisajes sonoros parecieron reflejar adecuadamente la condición del hábitat y son prometedores para evaluar la condición ecológica de un sitio. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Biota Colombiana is the property of Instituto Alexander von Humboldt and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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