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Long-term Bird Census in Cigu 2004-2017

Latest version published by Taiwan Black-faced Spoonbill Conservation Association on Jan 2, 2019 Taiwan Black-faced Spoonbill Conservation Association

For conservation of black-faced spoonbills (Platalea minor) and the avian community in Cigu, Tainan City, Taiwan, the Taiwan Black-faced Spoonbill Conservation Association initiated the Long-Term Bird Census in Cigu (LTBCC) project in August 2004. The censuses were conducted twice a month in ten sites represented agricultural fields, tidal mudflats, windbreaks, fish ponds and abandoned salt pans, separately, in Cigu. The dataset for the 13 census years from August 2004 to July 2017 consists of 2,885 sampling events and 25,974 occurrence records. A total of 522,246 individuals in 54 families and 235 species were counted and identified. Passeriformes, included 26 families and 97 species, occupied the highest percentage of the number of species, followed by Charadriiformes, with eight families and 62 species. However, the Charadriiformes was the order with the highest accumulated number of individuals (329,227), followed by the Pelecaniformes (114,779). 台灣黑面琵鷺保育學會為保育黑面琵鷺(Platalea minor),自2004年8月起,於台南市七股區啟動「七股地區長期鳥類調查計畫(LTBCC)」,選擇當地農墾地、感潮灘地、防風林、魚塭及廢棄鹽田等5類代表性棲地的10處地點進行每月兩次之鳥類調查。本資料集內容涵蓋2004年8月至2017年7月,共計13調查年度之所有調查紀錄,共計觀察事件2,885筆、出現紀錄25,974筆,記錄鳥類54科235種522,246隻次。種類上以雀形目(Passeriformes)26科97種為最多,其次為鴴形目(Charadriiformes)8科62種;數量上以鴴形目329,227隻次為最多,其次為鵜形目(Pelecaniformes)114,779隻次。

Data Records

The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 2,885 records. 2 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.

  • Event (core)
    2885
  • ExtendedMeasurementOrFact 
    77910
  • Occurrence 
    25974

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Downloads

Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:

Data as a DwC-A file download 2,885 records in English (905 KB) - Update frequency: annually
Metadata as an EML file download in Chinese (21 KB)
Metadata as an RTF file download in Chinese (24 KB)

Versions

The table below shows only published versions of the resource that are publicly accessible.

How to cite

Researchers should cite this work as follows:

Wu, S. (2018): Long-term Bird Census in Cigu 2004-2017. v1. Taiwan Black-faced Spoonbill Conservation Association. Dataset/Samplingevent. http://ipt.taibif.tw/resource?r=ltccc_bfsa&v=1.0

Rights

Researchers should respect the following rights statement:

The publisher and rights holder of this work is Taiwan Black-faced Spoonbill Conservation Association. This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: b6ca9b0b-b6eb-46c5-b623-cd479a71e566.  Taiwan Black-faced Spoonbill Conservation Association publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Taiwan Biodiversity Information Facility.

Keywords

Sampling event; Cigu; Tainan; Taiwan; Long-term Bird Census project; wetland; tidal mudflat; agricultural field; fish pond; abandoned salt pan; windbreak 取樣事件; 七股; 台南; 台灣; 長期鳥類調查; 濕地; 感潮灘地; 農墾地; 魚塭; 廢棄鹽田; 防風林; Samplingevent

Contacts

Who created the resource:

Shihhung Wu
Volunteer
Taiwan Black-faced Spoonbill Conservation Association No.153-2, Dingshan, Cigu Dist. 724 Tainan Taiwan TW 06-7801350
http://www.bfsa.org.tw

Who can answer questions about the resource:

Shihhung Wu
Volunteer
Taiwan Black-faced Spoonbill Conservation Association No.153-2, Dingshan, Cigu Dist. 724 Tainan Taiwan TW 06-7801350
http://www.bfsa.org.tw

Who filled in the metadata:

Shihhung Wu
Volunteer
Taiwan Black-faced Spoonbill Conservation Association No.153-2, Dingshan, Cigu Dist. 724 Tainan Taiwan TW 06-7801350
http://www.bfsa.org.tw

Who else was associated with the resource:

User
Shihhung Wu
Volunteer
Taiwan Black-faced Spoonbill Conservation Association No.153-2, Dingshan, Cigu Dist. 724 Tainan Taiwan TW 06-7801350
http://www.bfsa.org.tw

Geographic Coverage

台南市七股區範圍內。Cigu Dist., Tainan City, Taiwan

Bounding Coordinates South West [23.043, 120.031], North East [23.193, 120.145]

Taxonomic Coverage

A total of 235 species from 54 families in 18 orders were recorded. Passeriformes, included 26 families and 97 species, occupied the highest percentage of the number of species, followed by Charadriiformes, with eight families and 62 species. 鳥類共計18目54科235種,其中以雀形目(Passeriformes)26科97種最多,其次為鴴形目(Charadriiformes)8科62種。

Class  Aves (Bird)

Temporal Coverage

Start Date / End Date 2004-08-01 / 2017-07-22

Project Data

Although Taiwan is one of the major habitats in the EAAF for migratory birds, especially waterbirds, long-term bird population data and knowledge about population trends are lacking, except for certain flagship species such as the Black-faced spoonbill. Therefore, the members of Taiwan Black-faced Spoonbill Conservation Association voluntarily initiated the Long-Term Bird Census in Cigu (LTBCC) project in 2004. The aims of the LTBCC were to monitor the structure and composition of the avian community structure, as well as to build the population trends of the flagship and the common species to provide the necessary information for decision-making on the management of the Black-faced Spoonbill Refuge in Cigu District, Tainan City, Taiwan. 台灣黑面琵鷺保育學會對保育黑面琵鷺與七股這塊土地長期以來的努力,隨著「台南縣曾文溪口野生動物重要棲息環境」及「台南縣曾文溪口北岸黑面琵鷺動物保護區」於2002年底相繼於台南七股設立,總算有了一個具體的成果。然而,保護區的設立並不是保育工作的結束,反而是另一個開始。設立保護區後,保育目標應當從對於黑面琵鷺這樣一個單一旗艦物種(flagship species)的保護,轉換為對一整個完整生態系統的保育與經營管理。再者,僅管保護區成功設立,但地方政府卻同時在七股另一塊區域進行一項大規模的計劃,欲把鹽田淨土和豐饒潟湖開發成為國際機場,保育工作沒有片刻的休息。為此,台灣黑面琵鷺保育學會在沒有任何經費支援下,於2004年8月起動了「七股地區長期鳥類調查計畫」,一方面針對保護區範圍內的鳥類群聚,規劃一個長期的監測計畫,瞭解各項經營管理措施是否有助於鳥類群聚的發展;另一方面,也對保護範圍外的其他區域,嘗試建立鳥類資源基礎資料,以提供將來進行各項發展規劃的參考。希望長期所累積的成果,能提供給保護區經營、棲地管理與推廣旅遊、遊憩,以及規劃大型開發案等之參考依據,並為地方長期性的鳥類基礎資料建立奉獻一份心力。

Title 七股地區長期鳥類調查計畫 Long-Term Bird Census in Cigu
Identifier BFSA:LTBCC
Funding None 無,由志工義務執行。
Study Area Description Five habitat types, namely, tidal mudflats, agricultural fields, fish ponds, abandoned salt pans, and windbreaks, in Cigu District, Tainan City, Taiwan. 台南市七股區,涵蓋農墾地、感潮灘地、防風林、魚塭及廢棄鹽田等5類代表性棲地的10處地點。
Design Description Volunteer implementation of a long-term bird census project involving certain sites, periods, and methods, to establish baseline data of the avian community in various major bird habitats in Cigu. 設定調查樣區進行定時定點的長期鳥類調查,以建立不同代表性棲地的長期鳥類群聚資料為目的。

The personnel involved in the project:

Sampling Methods

Ten sites representing five habitat types were selected with the aim of collecting avian community data in Cigu. Since the winter migratory birds were the main monitoring target group of LTBCC, the study period was from August to July of the following year. In each survey, all of the sites were investigated by a team of volunteers led by a senior observer during the daytime. The survey frequency for each site was generally twice a month, except in August 2004 (four times) and September and October 2004 (three times each). Several surveys were not conducted because of weather conditions or other reasons. 各調查樣點以每個月兩次調查為原則。 L0採全計數(Total Count),調查時間約20至30分鐘; M1採全計數(Total Count),調查時間約60分鐘; M2採全計數(Total Count),調查時間約20分鐘; J2、J2A、J2B採穿越線(Line Transect),調查長度約150公尺,調查時間約30分鐘; J3採穿越線(Line Transect),調查長度約450公尺,調查時間約30分鐘; J3A採穿越線(Line Transect),調查長度約300公尺,調查時間約30分鐘; E1、E2採全計數(Total Count)同步進行,調查時間約介於30至90分鐘; E3採穿越線(Line Transect),調查長度約150公尺,調查時間約30分鐘; D1、D1A、D2、D2A均採全計數(Total Count),調查時間約30分鐘。

Study Extent Seven sites in four major habitat types in Cigu were selected at the beginning of the project in August, 2004. Three sites (L0 agricultural field, E2 fish pond, E3 windbreak habitat) with one more habitat type were added in August 2005. L0:Agricultural Field. The main crop is Shallot (Allium ascalonicum). Survey Method: Total Count. Started from August 2005. Coordinate(WGS84): 23.0903°N, 120.1064°E. M1:Tidal Mudflat. At the northern part of Black-faced spoonbill Refuge, surrounded by embankments but water can flow in and out through the water gates. Survey Method: Total Count. Started from August 2004. Coordinate(WGS84): 23.0754°N, 120.0487°E. M2:Tidal Mudflat. At the southern part of Black-faced spoonbill Refuge, the elevation is slightly higher than M1. Survey Method: Total Count. Started from August 2004. Coordinate(WGS84): 23.068°N, 120.0513°E. J2:Windbreak. The area was becoming smaller because of numbers of extreme weather occurred in these years, the position of line transect was moving south twice (J2A & J2B), only several trees left until July 2017. Survey Method: Line Transect. Started from August 2004. Coordinate(WGS84): J2:23.0856°N, 120.0366°E; J2A:23.0817°N, 120.0367°E; J2B:23.0803°N, 120.0371°E. J3:Windbreak. The area was becoming smaller in the same reason of J2. The length of line transect was shortened by 150m after August 2017. Survey Method: Line Transect. Started from August 2004. Coordinate(WGS84): 23.077°N, 120.037°E. E1:Fish Pond. Survey Method: Total Count. Started from August 2004. Coordinate(WGS84): 23.0755°N, 120.067°E. E2:Fish Pond. Survey Method: Total Count. Started from August 2005. Coordinate(WGS84): 23.0753°N, 120.069°E. E3:Windbreak. Survey Method: Line Transect. Started from August 2011. Coordinate(WGS84): 23.0716°N, 120.0657°E. D1:Abandoned Salt Pan. Because of the small population of birds, the site was scaled up to twice of area from August 2011(D1A). Survey Method: Total Count. Started from August 2004. Coordinate(WGS84): D1:23.1709°N, 120.1148°E; D1A:23.1735°N, 120.1148°E. D2:Abandoned Salt Pan. Because of the small population of birds, the site was scaled up to twice of area from August 2011(D2A). Survey Method: Total Count. Started from August 2004. Coordinate(WGS84): D2:23.1706°N, 120.1108°E; D2A:23.1735°N, 120.1108°E. 本計畫於2004年執行之初選擇灘地、魚塭、防風林、廢棄鹽灘及海面等5類七股主要棲地類型為調查樣區選擇依據,並於執行過程中刪除海面樣區(J1)另增加農墾地樣區(L0),各樣區資料如表2,位置如圖1。 L0:為農墾地,以種植紅蔥頭為主,自2005年8月調查迄今,面積2.6公頃,WGS84座標(23.0903,120.1064); M1:於七股黑面琵鷺保護區內北側,由堤防圍繞並以水門與外界交換水體之感潮灘地,自2004年8月調查迄今,面積98公頃,WGS84座標(23.0754,120.0487); M2:於七股黑面琵鷺保護區內南側,環境同M1但地勢較高,自2004年8月調查迄今,面積83公頃,WGS84座標(23.068,120.0513); J2:為濱岸防風林,自2004年8月調查迄今,WGS84座標(23.0856,120.0366),因經歷多次風災雨患而縮小,調查點亦隨之往南調整至J2A(23.0817,120.0367)及J2B(23.0803,120.0371),目前樹林僅剩殘樹數棵。 J3及J3A:亦為濱岸防風林,於J2樣區南側,自2004年8月調查迄今,WGS84座標(23.077,120.037),因經歷多次風災雨患而縮小,2017年8月後樣線縮短為300公尺(J3A),2018年8月樣區內之樹林已完全消失; E1:為魚塭,自2004年8月調查迄今,面積12公頃,WGS84座標(23.0755,120.067); E2:為魚塭,自2005年8月調查迄今,位於E1樣區東側,面積6公頃,WGS84座標(23.0753,120.069); E3:為防風林,自2011年8月調查迄今,WGS84座標(23.0716,120.0657); D1:為廢棄鹽灘,自2004年8月調查迄今,面積20公頃,WGS84座標(23.1709,120.1148),因區域鳥類數量少,於是擴大一倍之調查範圍為D1A,面積40公頃,WGS84座標(23.1735,120.1148); D2:為廢棄鹽灘,自2004年8月調查迄今,面積20公頃,WGS84座標(23.1706,120.1108),因區域鳥類數量少,於是擴大一倍之調查範圍為D2A,面積40公頃,WGS84座標(23.1735,120.1108)。
Quality Control The sampling effort equaled the number of observers times the total amount of time surveyed. For example, the sampling effort would be forty observer minutes when a survey was conducted by four observers in ten minutes. The people conducting the surveys, the number of participants, and the observational equipment varied in each survey, thus possibly resulting in quality differences. When each survey was completed, the results were sent to the secretary, who compiled the data in a digital file and then returned it to the survey team leader for verification. 努力量是以實際調查時間乘以實際調查人數而得。調查人員由志工擔任,每次調查人力及設備不一,可能影響調查結果。調查結果於當日調查結束後交由負責人員登打為電子檔,並寄送給參與志工進行資料確認。

Method step description:

  1. The survey methods and periods for each site are listed in Table 2. One or more volunteers used pairs of 8–12x binoculars and/or 32–60x monoculars to detect birds in the selected survey sites during a particular period. The start and finish times, weather conditions, and water coverage (ratio of the area covered by water, classified as five levels from 0/4 to 4/4) were recorded for each survey event. Each species of bird sighted or heard was recorded, with species, number, and type of movement (flyover or rest in the survey site) noted. 調查志工於現場以8~12倍雙筒望遠鏡及32~60倍單筒望遠鏡進行觀察,紀錄出現之鳥種、數量、行為(分為棲息與飛越等2類)、天氣、水域覆蓋比例(分為0/4、1/4、2/4、3/4、4/4等5類)。

Additional Metadata

Alternative Identifiers b6ca9b0b-b6eb-46c5-b623-cd479a71e566
http://ipt.taibif.tw/resource?r=ltccc_bfsa