Efecto del hábitat y el tamaño corporal en la evolución de los cantos en los atrapamoscas (familia: Tyrannidae)
The tyrant flycatchers (family: Tyrannidae) are a little studied group of birds that show great variation in their morphology and coloration. However, among species of the same genus the variation is small, which has greatly hindered their identification and understanding. An appropriate way to appr...
- Autores:
-
Gamarra Espejo, Francisco Javier
- Tipo de recurso:
- Trabajo de grado de pregrado
- Fecha de publicación:
- 2017
- Institución:
- Universidad de los Andes
- Repositorio:
- Séneca: repositorio Uniandes
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.uniandes.edu.co:1992/61228
- Acceso en línea:
- http://hdl.handle.net/1992/61228
- Palabra clave:
- Adaptación (Biología)
Bioacústica
Tyrannidae
- Rights
- openAccess
- License
- http://creativecommons.org/licenses/by-nc-sa/4.0/
| Summary: | The tyrant flycatchers (family: Tyrannidae) are a little studied group of birds that show great variation in their morphology and coloration. However, among species of the same genus the variation is small, which has greatly hindered their identification and understanding. An appropriate way to approach these birds is through bioacoustics, a discipline that takes advantage of the importance of vocal communication between birds, who use the songs for reproduction and intra-specific recognition. The study of acoustic signals has allowed the identification of cryptic species and is appropriate for this group as it presents high diversity in the songs. This work aims to evaluate the effects of habitat and weight on the evolution of the songs of the flycatchers and determine if the auditory signal follows the Acoustic Adaptation Hypothesis (AAH) or Morphological Adaptation Hypothesis (MAH). The analysis of the data was performed on two principal components and the entropy, the PCt summarizes the temporal variation and the PCf the variation in frequencies... |
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