説明
The Swedish waterbird census in September (Svensk sjöfågelinventering (september)) was started in 1973 as a complement to the Swedish part of the international midwinter census (Swedish waterbird census (January)). It is a valuable tool for monitoring roosting waterbirds as well as finding out which areas are important resting places for migrating waterbirds.
The Swedish waterbird census (September) is one of several schemes within the Swedish Bird Survey, run by the Department of Biology at Lund University. The surveys are with a few exceptions carried out by volunteer ornithologists.
In this dataset, some information is placed in the table ExtendedMeasurementOrFacts (eMoF), which is part of the Source Archive available to download directly from the dataset’s page on gbif.org. The Source Archive contains the data exactly as uploaded to gbif (verbatim). Should you choose to download the dataset as GBIF Annotated Archive instead, the data has been interpreted and quality controlled by gbif, but, the data in the eMoF will not be included, as the eMoF extension is not yet supported by gbif.
データ レコード
この sampling event リソース内のデータは、1 つまたは複数のデータ テーブルとして生物多様性データを共有するための標準化された形式であるダーウィン コア アーカイブ (DwC-A) として公開されています。 コア データ テーブルには、11,559 レコードが含まれています。
拡張データ テーブルは2 件存在しています。拡張レコードは、コアのレコードについての追加情報を提供するものです。 各拡張データ テーブル内のレコード数を以下に示します。
この IPT はデータをアーカイブし、データ リポジトリとして機能します。データとリソースのメタデータは、 ダウンロード セクションからダウンロードできます。 バージョン テーブルから公開可能な他のバージョンを閲覧でき、リソースに加えられた変更を知ることができます。
バージョン
次の表は、公にアクセス可能な公開バージョンのリソースのみ表示しています。
引用方法
研究者はこの研究内容を以下のように引用する必要があります。:
Haas F, Jönsson A (2024). Swedish Bird Survey: Swedish waterbird census (September). Version 1.0. Department of Biology, Lund University. Samplingevent dataset. https://www.gbif.se/ipt/resource?r=lu_ssis&v=1.0
権利
研究者は権利に関する下記ステートメントを尊重する必要があります。:
パブリッシャーとライセンス保持者権利者は Department of Biology, Lund University。 To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.
GBIF登録
このリソースをはGBIF と登録されており GBIF UUID: ecebee66-f913-4105-acb6-738430d0edc9が割り当てられています。 GBIF Sweden によって承認されたデータ パブリッシャーとして GBIF に登録されているDepartment of Biology, Lund University が、このリソースをパブリッシュしました。
キーワード
Samplingevent
連絡先
- メタデータ提供者 ●
- 最初のデータ採集者 ●
- 連絡先
- PhD, Researcher
- メタデータ提供者
- PhD, Researcher
- プログラマー
地理的範囲
All data is collected within Sweden.
| 座標（緯度経度） | 南 西 [55.336, 10.957], 北 東 [69.06, 24.167] |
|---|
生物分類学的範囲
All species within the following groups are surveyed: Ducks and swans (Anatidae) Grebes (Podicipedidae) Divers (Gaviidae) Auks (Alcidae) Cormorants (Phalacrocoracidae) Herons (Ardeidae) The following species is also included in the survey: Eurasian coot (Fulica atra) All observed individuals of the above mentioned species are counted.
| Kingdom | Animalia (Animals) |
|---|---|
| Phylum | Chordata (Chordates) |
| Class | Aves (Birds) |
時間的範囲
| 開始日 / 終了日 | 1973-09-10 / 2023-10-23 |
|---|
プロジェクトデータ
説明がありません
| タイトル | Svensk Fågeltaxering |
|---|---|
| ファンデイング | The Swedish Environmental Protection Agency supports the Swedish Bird Survey. |
| Study Area Description | Sweden |
プロジェクトに携わる要員:
https://orcid.org/0000-0002-5597-6209
収集方法
Three different methods can be used to survey a counting sector: surveying from land, boat or aeroplane. Surveying from land is the standard and most commonly used method. For large counting sectors the surveyor has to use multiple vantage points. Ideally the whole sector should be scanned for birds, but in many cases this is not possible due to parts being e.g. obscured by islands or unreachable for other reasons. In periods, boat-based counts have been carried out to cover areas not visible from land. To cover large areas not visible from the mainland, aerial surveys with professional observers have occasionally been conducted. Regardless of method, all observed individuals of the species included in the survey should be counted. The surveyed counting sectors vary in size from 0,03 to 125 km2.
| Study Extent | Geography and habitat: All observations are registered on counting sectors. The entire Swedish coastline is divided into ca 3100 such sectors, ca 1100 of which have been surveyed in September. In the inland, small lakes become sectors of their own while large lakes, as well as streams and rivers, are each split into several sectors. At present almost 600 inland sectors have been surveyed in September. It is possible for surveyors to create new inland counting sectors, as well as start previously not surveyed coastal sectors, provided the intention is to survey them for several years. The waterbird census in January and September are using the same system of counting sectors. Timing and frequency: The survey should in general be carried out once in the middle of September, but a sector is allowed to be censused more than once in a given year if different methods are used (see below). The exact survey dates are decided and notified by the project management every year. The time taken to survey a sector depends on the size of the sector and on the abundance and distribution of birds. |
|---|---|
| Quality Control | Data is checked and validated by the project leaders, specifically species identity, numbers and geographical location. Confidence in the data is good. |
Method step description:
- See sampling description.
追加のメタデータ
Important information for potential users of the Swedish waterbird census (September) data: 1. The data shown in this Darwin core archive are, for each species, the sum of all individuals within the counting sector during a visit. Note that some sectors are surveyed twice, but with different methods, in some years. 2. Null visits and zero observations: Users of the data have to construct zero data for each species themselves. The occurrence table contains observations of species that were actually present at the surveyed sites, but the surveyor would have looked for all species that are included in the survey design. For visits to sites where no observations were made at all (when such null visits exist), the occurrence table also includes one zero observation with vernacularName set to "SpeciesIncludedInSurvey", and occurrenceStatus set to "Absent". This is to ensure that information about surveyor is included in the DwC-A also for these events. Additionally, information about whether a visit is a null visit (i.e. true = no survey species observed) or not (i.e. false = one or more survey species observed) is included in the ”extended measurement or fact table” (noObservations). 3. The coordinates supplied are for the central point of each counting sector.
| 目的 | National environmental monitoring of waterbirds. |
|---|---|
| 代替識別子 | https://www.gbif.se/ipt/resource?r=lu_ssis |