Descripción
Occurrence dataset from the waterbird survey of the middle and lower Huai He floodplain, China in 2005 and 2006.
Registros
Los datos en este recurso de evento de muestreo 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 158 registros.
también existen 1 tablas de datos de extensiones. Un registro en una extensión provee información adicional sobre un registro en el core. El número de registros en cada tabla de datos de la extensión se ilustra a continuación.
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:
Wijethunge I K, Cao J, Meng F, Xu Z, Zhao Q, Cao L (2025). Occurrence dataset from the waterbird survey of the middle and lower Huai He floodplain, China. Version 1.1. Chinese Academy of Sciences (CAS). Samplingevent dataset. http://www.gbifchina.org.cn/resource?r=occurrence_dataset_waterbird_survey_huaihe_floodplain_china&v=1.1
Derechos
Los usuarios deben respetar los siguientes derechos de uso:
El publicador y propietario de los derechos de este trabajo es Chinese Academy of Sciences (CAS). Esta obra está bajo una licencia Creative Commons de Atribución/Reconocimiento-NoComercial (CC-BY-NC 4.0).
Registro GBIF
Este recurso ha sido registrado en GBIF con el siguiente UUID: 206b6c43-69f2-47e8-b31c-3583a1a93c3f. Chinese Academy of Sciences (CAS) publica este recurso y está registrado en GBIF como un publicador de datos avalado por Chinese Academy of Sciences.
Palabras clave
Occurrence; Observation
Contactos
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- Proveedor De Los Metadatos ●
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- Punto De Contacto
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Cobertura geográfica
We conducted surveys at 158 sites across 30 lakes and reservoirs in the middle and lower Huai River floodplain, Anhui and Jiangsu provinces, China.
| Coordenadas límite | Latitud Mínima Longitud Mínima [32,2, 116,2], Latitud Máxima Longitud Máxima [33,7, 119,5] |
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Cobertura taxonómica
A total of 569 waterbird records are documented in this occurrence dataset, belonging to 44 species, 11 families and 6 orders.
| Orden | Podicipediformes, Anseriformes, Suliformes, Pelecaniformes, Charadriiformes, Gruiformes |
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Cobertura temporal
| Fecha Inicial / Fecha Final | 2005-12-09 / 2005-12-15 |
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| Fecha Inicial / Fecha Final | 2006-11-27 / 2006-12-13 |
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Datos del proyecto
No hay descripción disponible
| Título | Technology for Identifying Key Areas for Wildlife and Plant Assessment and Conservation |
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| Fuentes de Financiación | Ministry of Science and Technology of China, The National Key Research and Development Program [grant number 2022YFF1301401]. |
Métodos de muestreo
The waterbirds species to be counted during the survey were defined according to Waterbird Population Estimates 3rd Edition (Wetlands International 2002), which is the document used by the Ramsar Convention for identifying wetlands containing internationally important concentrations of waterbirds.
| Área de Estudio | The area surveyed consists of the lakes and reservoirs shown within Anhui and Jiangsu Province, extending over a distance of about 200 km upstream of Hongze Hu. All the lakes visited are connected by channels or rivers to the Huai He. |
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| Control de Calidad | Observers generally underestimate the numbers of waterbirds present when counting large flocks (Rappoldt et al. 1985). Underestimation is also compounded by the common problem of missing birds when counting over large wetland areas. As very large concentrations of waterbirds were not encountered during this survey, it is believed that count accuracy (identification of species and numbers) was good. It is also believed that few birds were missed at the individual count sites. At most lakes only part of the wetland could be surveyed and, therefore, counts for lakes are probably underestimates of numbers actually present. |
Descripción de la metodología paso a paso:
- The count was conducted by one team of two experienced counters each using Zeiss 10X42 Victory roof prism binoculars and Leica Televid 77 telescopes, with 20-60X zoom eyepieces. We used geo-referenced satellite images (15m/pixel) to select count sites and entered the coordinates into GPS units. This enabled us to reach the sites with minimum problems. Sometimes we could drive directly to the sites; on other occasions we hired a local truck or walked to the site. On all mornings we aimed to arrive at the first count site at about 07.00 when it was just light enough to see birds. We were able to survey through to about 17.30, before it got too dark to see. The ease with which we were able to reach wetland shores varied between lakes. In some cases there were dykes or roads around the wetland that allowed good views of potential waterbird habitat to be obtained, whilst the shorelines of other wetlands were difficult to reach which seriously limited our ability to adequately cover these in the available time.
Metadatos adicionales
| Identificadores alternativos | 206b6c43-69f2-47e8-b31c-3583a1a93c3f |
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| http://www.gbifchina.org.cn/resource?r=occurrence_dataset_waterbird_survey_huaihe_floodplain_china |