Home-range size of an Andean Bird :assessing the role of physical condition
Space-use patterns are a key aspect of the ecology and distribution of species. Hence, identifying the factors that determine the variation in size of territories and home-ranges has been a central objective of studies on population ecology. Space use might vary in response to extrinsic factors like...
- Autores:
-
Castaño Galvis, María Isabel
- Tipo de recurso:
- Trabajo de grado de pregrado
- Fecha de publicación:
- 2018
- Institución:
- Universidad de los Andes
- Repositorio:
- Séneca: repositorio Uniandes
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.uniandes.edu.co:1992/39802
- Acceso en línea:
- http://hdl.handle.net/1992/39802
- Palabra clave:
- Ecología de pinzones
Pinzón picofino
Biología
- Rights
- openAccess
- License
- http://creativecommons.org/licenses/by-nc-sa/4.0/
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Home-range size of an Andean Bird :assessing the role of physical condition |
| title |
Home-range size of an Andean Bird :assessing the role of physical condition |
| spellingShingle |
Home-range size of an Andean Bird :assessing the role of physical condition Ecología de pinzones Pinzón picofino Biología |
| title_short |
Home-range size of an Andean Bird :assessing the role of physical condition |
| title_full |
Home-range size of an Andean Bird :assessing the role of physical condition |
| title_fullStr |
Home-range size of an Andean Bird :assessing the role of physical condition |
| title_full_unstemmed |
Home-range size of an Andean Bird :assessing the role of physical condition |
| title_sort |
Home-range size of an Andean Bird :assessing the role of physical condition |
| dc.creator.fl_str_mv |
Castaño Galvis, María Isabel |
| dc.contributor.advisor.none.fl_str_mv |
Cadena Ordóñez, Carlos Daniel Avendaño Carreño, Jorge Enrique |
| dc.contributor.author.none.fl_str_mv |
Castaño Galvis, María Isabel |
| dc.subject.keyword.es_CO.fl_str_mv |
Ecología de pinzones Pinzón picofino |
| topic |
Ecología de pinzones Pinzón picofino Biología |
| dc.subject.themes.none.fl_str_mv |
Biología |
| description |
Space-use patterns are a key aspect of the ecology and distribution of species. Hence, identifying the factors that determine the variation in size of territories and home-ranges has been a central objective of studies on population ecology. Space use might vary in response to extrinsic factors like habitat quality and available space and to intrinsic factors like physical condition and individual behavior (aggressiveness). However, the role of these factors has been poorly documented in high-elevation species of birds. In this study, we report the home-range size of a Neotropical Andean bird (Arremon assimilis) and evaluate the role of physical condition in explaining variation in home-range size among individuals. We mapped and estimated the home ranges of 14 territorial males in the Cerros Orientales of Bogotá, Colombia, using minimum convex polygons (MCP) and 95% kernel density estimators (KDE). The mean home-range size estimated for the 100% MCP was 0.522 0.305 ha (range = 0.15-1.18 ha), whereas the 95% KDE estimation was 0.504 0.471 ha (range = 0.13-1.88). We calculated the real mass index of each bird as a proxy of physical condition to assess whether individuals in better physical condition had larger home-ranges. Because we found no relation between physical condition and home- range size, we conclude that space use in this species might depend more on ecological factors such as habitat quality or neighbor density than on individual traits |
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2018 |
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2018 |
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2020-06-10T16:33:02Z |
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2020-06-10T16:33:02Z |
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Trabajo de grado - Pregrado |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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http://hdl.handle.net/1992/39802 |
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u807218.pdf |
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eng |
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eng |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ |
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24 hojas |
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Uniandes |
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Biología |
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Facultad de Ciencias |
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Departamento de Ciencias Biológicas |
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Al consultar y hacer uso de este recurso, está aceptando las condiciones de uso establecidas por los autores.http://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Cadena Ordóñez, Carlos Daniel8308cacd-eb61-4f56-9496-b997382da70d500Avendaño Carreño, Jorge Enriquevirtual::4238-1Castaño Galvis, María Isabelab1e4e62-6cc2-4f14-9551-b7bcda11cca35002020-06-10T16:33:02Z2020-06-10T16:33:02Z2018http://hdl.handle.net/1992/39802u807218.pdfinstname:Universidad de los Andesreponame:Repositorio Institucional Sénecarepourl:https://repositorio.uniandes.edu.co/Space-use patterns are a key aspect of the ecology and distribution of species. Hence, identifying the factors that determine the variation in size of territories and home-ranges has been a central objective of studies on population ecology. Space use might vary in response to extrinsic factors like habitat quality and available space and to intrinsic factors like physical condition and individual behavior (aggressiveness). However, the role of these factors has been poorly documented in high-elevation species of birds. In this study, we report the home-range size of a Neotropical Andean bird (Arremon assimilis) and evaluate the role of physical condition in explaining variation in home-range size among individuals. We mapped and estimated the home ranges of 14 territorial males in the Cerros Orientales of Bogotá, Colombia, using minimum convex polygons (MCP) and 95% kernel density estimators (KDE). The mean home-range size estimated for the 100% MCP was 0.522 0.305 ha (range = 0.15-1.18 ha), whereas the 95% KDE estimation was 0.504 0.471 ha (range = 0.13-1.88). We calculated the real mass index of each bird as a proxy of physical condition to assess whether individuals in better physical condition had larger home-ranges. Because we found no relation between physical condition and home- range size, we conclude that space use in this species might depend more on ecological factors such as habitat quality or neighbor density than on individual traits"Documentar los patrones de utilización del espacio es un aspecto clave de la ecología y la distribución de las especies. En este sentido, identificar los factores que determinan la variación en el tamaño del territorio (área defendida) y rango de hogar (área utilizada) ha sido un objetivo central en los estudios de ecología y ensamblaje de comunidades. Se ha propuesto que el uso del espacio puede variar en respuesta a factores extrínsecos como la calidad del hábitat y el espacio disponible, y a factores intrínsecos como la condición física y agresividad de los individuos. Sin embargo, el papel de cada una de estas variables ha sido poco estudiado en especies de tierras altas. En este estudio evaluamos la relación entre el tamaño del rango de hogar y la condición física de un ave paseriforme de bosques montanos (Arremon assimilis). Para esto marcamos y seguimos por 6 meses a 14 machos territoriales en los Cerros Orientales de Bogotá. Usando el método del "mapeo por puntos" estimamos el rango de hogar a partir de dos aproximaciones: Polígono Mínimo Convexo y estimaciones de densidad de Kernel. Los rangos de hogar estimados tienen un tamaño promedio de 0.5 + 0.46 ha, variando desde 0.15 a 1.8 ha. Para evaluar la relación entre el tamaño del rango de hogar y la condición física, tomamos medidas morfológicas de cada uno de los individuos marcados y estimamos un índice de condición corporal (RMI), esperando que los individuos con mejor condición corporal tuvieran los territorios más grandes. Sin embargo, no encontramos una relación significativa entre estas dos variables. Nuestros resultados sugieren que el tamaño del rango de hogar puede depender de otros factores ecológicos tales como la calidad del hábitat o la densidad de vecinos, más que de las condiciones propias del individuo."--Tomado del Formato de Documento de GradoBiólogoPregrado24 hojasapplication/pdfengUniandesBiologíaFacultad de CienciasDepartamento de Ciencias Biológicasinstname:Universidad de los Andesreponame:Repositorio Institucional SénecaHome-range size of an Andean Bird :assessing the role of physical conditionTrabajo de grado - Pregradoinfo:eu-repo/semantics/bachelorThesishttp://purl.org/coar/resource_type/c_7a1fhttp://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/TPEcología de pinzonesPinzón picofinoBiologíaPublication9eb9d5b4-4490-4417-ba67-1e84831ade0bvirtual::4238-19eb9d5b4-4490-4417-ba67-1e84831ade0bvirtual::4238-1ORIGINALu807218.pdfapplication/pdf541733https://repositorio.uniandes.edu.co/bitstreams/8562de8b-3009-49a2-814d-4f5ef7f03372/download8e491ba1646f9c5e54cddc263745a827MD51TEXTu807218.pdf.txtu807218.pdf.txtExtracted texttext/plain46660https://repositorio.uniandes.edu.co/bitstreams/d15ce0f1-0555-4692-b133-bb90a9a50328/download30446b8d314d48cd42da658eaffdf15fMD54THUMBNAILu807218.pdf.jpgu807218.pdf.jpgIM Thumbnailimage/jpeg11077https://repositorio.uniandes.edu.co/bitstreams/fb4d7ad0-aaf4-4f5e-a601-3e88bed59005/download181757fd8be4dc7e3c16b11c817995f1MD551992/39802oai:repositorio.uniandes.edu.co:1992/398022024-03-13 12:37:57.67http://creativecommons.org/licenses/by-nc-sa/4.0/open.accesshttps://repositorio.uniandes.edu.coRepositorio institucional Sénecaadminrepositorio@uniandes.edu.co |