說明
This data was collected during a playback survey of owls in Warsaw in February, March and April of 2024. The project was organised by the Ornithology Science Club "Jajo" at the University of Warsaw, supported by the Warsaw University of Life Sciences, The Polish Society for the Protection of Birds (OTOP) and Owl Conservation Association (SOS). Over a hundred volunteers took part in the field surveys. In each of the 431 survey points covering most of the city's surface, 3 surveys were conducted. Researchers were listening for spontaneous vocal activity of selected owl species as well as using playback and recording all found owls. The occurrences in this dataset represent both absence and presence data. For each species surveyed at each point, there is either an absence record or one or more presence records in the occurrence table. To protect the precise locations of owls' nests, the coordinates attached to records represent survey points. Some birds were recorded outside of survey points – those observations are provided in this dataset with coordinates of the closest survey point and coordinateUncertaintyInMeters=500.
資料紀錄
此資源sampling event的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 1,724 筆紀錄。
亦存在 1 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。
此 IPT 存放資料以提供資料儲存庫服務。資料與資源的詮釋資料可由「下載」單元下載。「版本」表格列出此資源的其它公開版本，以便利追蹤其隨時間的變更。
版本
以下的表格只顯示可公開存取資源的已發布版本。
如何引用
研究者應依照以下指示引用此資源。:
Kuczkowska K, Sadkowski D, Baranowska W, Rapczyński J, Chalecki K (2026). Playback survey of owls in Warsaw in 2024. Version 1.1. University of Warsaw. Samplingevent dataset. https://ipt.gbif.pl/resource?r=sowy_warszawa&v=1.1
權利
研究者應尊重以下權利聲明。:
此資料的發布者及權利單位為 University of Warsaw。 This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
GBIF 註冊
此資源已向GBIF註冊，並指定以下之GBIF UUID: b004c221-4e29-4148-88b6-04e9ea2e3e5e。 University of Warsaw 發佈此資源，並經由Polish Biodiversity Information Network同意向GBIF註冊成為資料發佈者。
關鍵字
Samplingevent; Observation
聯絡資訊
- 元數據提供者 ●
- 出處 ●
- 連絡人
https://orcid.org/https://orcid.org/0009-0004-8277-7258
- 出處
- 出處
地理涵蓋範圍
All survey points were located within city limits of Warsaw, Poland, in a grid of about 1 km x 1 km. Densely built-up areas without suitable trees, especially in the city center, were excluded from the grid. Additional points were added in suitable areas (parks, cemeteries) if they were too far from the existing grid points. Total of 431 point were surveyed.
| 界定座標範圍 | 緯度南界 經度西界 [52.105, 20.857], 緯度北界 經度東界 [52.362, 21.261] |
|---|
分類群涵蓋範圍
Strix aluco, Asio otus, Athene noctua, Glaucidium passerinum, Aegolius funereus, Tyto alba
| Kingdom | Animalia |
|---|---|
| Phylum | Chordata |
| Class | Aves |
| Order | Strigiformes |
時間涵蓋範圍
| 起始日期 / 結束日期 | 2024-02-20 / 2024-05-01 |
|---|
取樣方法
In each sampling point, the list of possible species was compiled based on habitat characteristics. Species were surveyed from the smallest one to the biggest at each point. For each surveyed species, the researchers were first passively listening for at least two minutes, then used playback and listened for response, marking all observed target species. The playback protocol is described in detail below and takes about 10 minutes per species. Playback was not used if species were already vocally active. Playback was stopped after the first vocal response of the species of interest. For the safety of the smaller species, the playback for them was not used in points where there were spontaneous vocal activity of Strix Aluco.
| 研究範圍 | The goal of this study was to assess the number of owls of 6 species of interest nesting in Warsaw in 2024. The species of interest were: Strix aluco, Asio otus, Athene noctua, Glaucidium passerinum, Aegolius funereus and Tyto alba. 431 sampling points were selected in the city, following a grid of 1 km x 1 km, and 3 bioacoustic surveys with playback were condicted in each point. |
|---|---|
| 品質控管 | Each survey was run by two researchers. All study participants were first instructed and given materials on proper fieldwork methods and recognising species of interest. In every researcher pair, there was at least one person with previous experience in bird or owl monitoring. In case of doubtful identifications, sound recordings were analysed by experts to confirm the species identification. |
方法步驟描述:
- At each point, for each species surveyed: >120 s listening, 10 s playback, 60 s listening, 30 s playback, 120 s listening, 60 s playback, >120 s listening.