Descripción
This resource has 12049 event records of native and exotic birds observed between the regions of Coquimbo and El Maule from Chile. Each study site was selected because its urbanization degree. The bird sampling methodology was a standardised point count census where a person registered every bird saw or heard in a radio of 30 meters during 5 minutes.
In each study location, we perform bird counts and behavioural observations across different environments that vary in urban development. We use a standardised point count method during the early morning counting all individuals from all species observed in a 5 minutes period. To deal with pseudoreplication and spatial autocorrelation we considered a minimum distance between point counts of 250 meters, trying to maximize the number of points and recording the spatial coordinates to be incorporated in statistical analyses. Each site was sampled twice a year during the breeding season (first sample: October-November, and second sample: January– February) for two years (i.e. two breeding seasons), to incorporate both seasonal and year-to-year variation in species composition
During the field work, all data was recorded in pre-filled paperwork by the technical staff. The data was digitalized by the same technical stuff, and curator member check for inconsistencies (records, scientific names, times, dates, etc) in the paperwork.
Registros
Los datos en este recurso de registros biológicos han sido publicados como Archivo Darwin Core(DwC-A), el cual es un formato estándar para compartir datos de biodiversidad como un conjunto de una o más tablas de datos. La tabla de datos del core contiene 12.049 registros.
Este IPT archiva los datos y, por lo tanto, sirve como repositorio de datos. Los datos y los metadatos del recurso están disponibles para su descarga en la sección descargas. La tabla versiones enumera otras versiones del recurso que se han puesto a disposición del público y permite seguir los cambios realizados en el recurso a lo largo del tiempo.
Versiones
La siguiente tabla muestra sólo las versiones publicadas del recurso que son de acceso público.
¿Cómo referenciar?
Los usuarios deben citar este trabajo de la siguiente manera:
González-Lagos C, Weinberger C, Undurraga M I, Muñoz C, Piña-Espínola J B (2024). Terrestrial birds in urbanized areas of Central Chile. Version 1.0. Center of Applied Ecology and Sustainability (CAPES). Occurrence dataset. http://gbif-chile.mma.gob.cl/ipt/resource?r=aves1&v=1.0
Derechos
Los usuarios deben respetar los siguientes derechos de uso:
El publicador y propietario de los derechos de este trabajo es Center of Applied Ecology and Sustainability (CAPES). Esta obra está bajo una licencia Creative Commons de Atribución/Reconocimiento (CC-BY 4.0).
Registro GBIF
Este recurso ha sido registrado en GBIF con el siguiente UUID: 9b2c5da4-e3f4-40b3-9b6f-a27817a1aa42. Center of Applied Ecology and Sustainability (CAPES) publica este recurso y está registrado en GBIF como un publicador de datos avalado por GBIF Chile.
Palabras clave
Samplingevent; birds; Urbanitazion; avian; Exotic; Central Chile; Occurrence
Contactos
- Originador
- Investigador Principal
- Diagonal Las Torres 2640
http://orcid.org/0000-0001-5679-4610
- Originador
- Curator & manager
- Diagonal Las Torres 2640
- Originador
- Technical staff
- Las Encinas 3292-3296, Ñuñoa.
- Originador
- Technical staff
- Proveedor De Los Metadatos ●
- Originador
- Pasante
- San Martín 73
- +56225735600
- Punto De Contacto
- Investigador Principal
- Diagonal Las Torres 2640
Cobertura geográfica
Central Chile
| Coordenadas límite | Latitud Mínima Longitud Mínima [-35,479, -71,713], Latitud Máxima Longitud Máxima [-29,898, -70,632] |
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Cobertura taxonómica
All birds were identified to species level but the phylum, order, genus are also added. Scientific names are those used in Jetz et al. 2012 (Nature)
| Filo | Chordata |
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| Class | Aves |
| Orden | Accipitriformes, Anseriformes, Apodiformes, Charadriiformes, Columbiformes, Falconiformes, Galliformes, Gruiformes, Passeriformes, Pelecaniformes, Piciformes, Psittaciformes, Strigiformes, Suliformes, Tinamiformes |
Cobertura temporal
| Fecha Inicial / Fecha Final | 2017-01-01 / 2018-01-01 |
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Datos del proyecto
Human induced rapid environmental changes (HIREC) are drastic and widespread, often putting organisms into evolutionary novel situations. Although most species do not tolerate well these environmental changes, a few not only do well but may also become dominant and widespread. Such a dynamic in species turnover and changes in species richness may reduce biotic distinctness. This phenomenon known as biotic homogenization is important because could erode ecosystem services with significant consequences for ecological and human wellbeing. Two forms of HIREC appear central and mutually reinforcing biotic homogenization: the habitat loss associated with urbanization and the introduction of non-indigenous species by human activities. Despite taxonomic homogenization has been widely reported, the underlying mechanisms remain controversial. Besides, mounting evidences shows that species diversity influences ecosystem functions, however what determines the magnitude of its effects is species identity with their phylogenetic characteristics, which are often overlooked. In this project, we investigate whether and how the urbanization process favors taxonomic, and phylogenetic homogenization in birds due to the interplay between loss of native species (little tolerant to urbanization process) and additions of non-indigenous species by human-assisted introductions. In a scenario of increasing globalization, where most of human populations live in cities and invasive species are increasingly introduced, understanding the processes that drive biotic homogenization is crucial to develop informed strategies of adaptation to an human dominated world. Altogether, the results of this proposal are critical premises to forecast future evolutionary trajectories of an urbanizing planet.
| Título | BIOTIC HOMOGENIZATION OF BIRDS BY HIREC: UNDERSTANDING THE ROLE OF URBANIZATION AND NON- INDIGENOUS SPECIES. |
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| Identificador | 111602271 |
| Fuentes de Financiación | FONDECYT nº11160271, ANID |
| Descripción del área de estudio | Highly, medium and low urbanized study locations were selected in four urbanized areas from central Chile |
| Descripción del diseño | In each study location, we perform bird counts and behavioural observations across different environments that vary in urban development. We use a standardised point count method during the early morning counting all individuals from all species observed in a 5 minutes period. To deal with pseudoreplication and spatial autocorrelation we considered a minimum distance between point counts of 250 meters, trying to maximize the number of points and recording the spatial coordinates to be incorporated in statistical analyses. Each site was sampled twice a year during the breeding season (first sample: October-November, and second sample: January– February) for two years (i.e. two breeding seasons), to incorporate both seasonal and year-to-year variation in species composition. |
Personas asociadas al proyecto:
- Curador
- Proveedor De Contenido
- Proveedor De Contenido
Métodos de muestreo
we perform bird counts and behavioural observations across different environments that vary in urban development. We use a standardised point count method during the early morning counting all individuals from all species observed in a 5 minutes period. To deal with pseudoreplication and spatial autocorrelation we considered a minimum distance between point counts of 250 meters, trying to maximize the number of points and recording the spatial coordinates to be incorporated in statistical analyses. Each site was sampled twice a year during the breeding season (first sample: October-November, and second sample: January– February) for two years (i.e. two breeding seasons), to incorporate both seasonal and year-to-year variation in species composition.
| Área de Estudio | We counted terrestrial birds in four urbanized areas from central Chile (study locations; Talca, Rancagua, La Serena and Ovalle) during the years 2017 and 2018. Point counts were located in highly urbanized and surrounding more natural areas. we perform bird counts and behavioural observations across different environments that vary in urban development. Each site was sampled twice in a year during the breeding season (first sample: October-November, and second sample: January– February) for two years (i.e. two breeding seasons), to incorporate both seasonal and year-to-year variation in species composition. |
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| Control de Calidad | During the field work, all data was recorded in pre-filled paperwork by the technical stuff. The data was digitalized by the same technical stuff, and curator member check for inconsistencies (records, scientific names, times, dates, etc) in the paperwork. |
Descripción de la metodología paso a paso:
- Bird count method details are provided in Bibby, C. J., Burgess, N. D., Hill, D. A., & Mustoe, S. (2000). Bird census techniques. Elsevier. Field data was recorded in a notebook that is under the custody of C. González-Lagos. César Muñoz and Maria Ignacia Undurraga collected data in the field and performed digital data tabulation. Constanza Weinberger performed data validation checking the notebook and digital files in the lab.
Metadatos adicionales
| Identificadores alternativos | http://gbif-chile.mma.gob.cl/ipt/resource?r=aves1 |
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