JA:Key:taxon

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利用できる言語 — Key:taxon
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Public-images-osm logo.svg taxon
Osm element key.svg
説明
地物の分類群を記述します。
グループ: 属性
適用できる要素
ノードに使用可能ウェイに使用可能領域に使用可能use on relations unspecified
よく併用されるタグ
ウィキデータ
状態:使用中

taxon=Lychnis flos-cuculi taxon:en=Ragged Robin

定義

natural=wood natural=tree barrier=hedgelanduse=forestnatural=scrub natural=marsh natural=heath と関連付けて、または個別に、樹木や植物の生物学上の分類群を示すために使います。

taxon を使用することで、すべてのマッパーが有能な植物学者でなくても、マッピングされた地物の生物学的な構成の記述が様々なタグ(例えば name:biological=* genus=* species=*)に拡散し、一貫性がなくなること(例えば、 species=Oak)を防ぐことができます。また、 taxonomy:taxon_level のようなタグを使えば、生物学事典の分類学的なタグ付け方法と意味的に同じにすることができます。

生物学の純正主義者が期待する(例えば、ピンク色の花の変種を Robinia sp. とする)よりは緩く使うことを意図しています。これは、知識、場所、時期、その他の要因により、正確に植物を識別することがおそらくできないからです。興味のある外来種の木がある場所は、専門家であってもたやすく識別できないでしょうが、広い分類学上の位置はすぐに推定できるでしょう。有名な植物のコレクションにあるものは、変種や品種を識別したほうがいいでしょう。たとえば、 Nottingham Arboretum には 'Champion Tree' と呼ばれてきた、葉に切れ込みがあるハンノキ(Alnus glutinosa)があります。単純に種を割り当てると、この木の固有の特徴について伝わらなくなります。

現在、動物や菌類には taxon の使用はありません。

使用例

対象 タグ付け コメント
有名な樫の木 ノード 455984558 (iD, JOSM, Potlatch2, 履歴表示, XML) This is a good example of a significant tree which is a local monument and a tourist attraction with a specific name. Taxon can be namespaced to provide vernacular names, widely used codes (BSBI reference), additional taxonomic data (e.g., genus).
Pink-flowered Robinia cultivar
Typical London Plane ノード 1133831166 (iD, JOSM, Potlatch2, 履歴表示, XML) A good example of a hybrid taxon where the current biological name may change, but where there is a national nomenclature standard. In this case the standard nomenclature has been preferred. Species renaming could become a significant issue.
Street trees in Girona ノード 774598242 (iD, JOSM, Potlatch2, 履歴表示, XML) One example of one of the trees imported from the Girona city GIS.
Street & Park trees in Vienna ノード 2044279309 (iD, JOSM, Potlatch2, 履歴表示, XML) One of many examples of cultivar names used in a tree import from Vienna. This demonstrates how taxon & species tagging can be used to provide both precision & convenience by using separate tags for the cultivar and species names.

Cultivar names in the taxon are probably best shown as "cv. 'Pallida'" rather than just as the cultivar name, for instance the ivy taxons Hedera helix hibernica (a subspecies) is not the same as Hedera helix cv. 'Hibernica' (see On-line Plant Atlas

A beech hedge ウェイ 80180192 (iD, JOSM, Potlatch2, 履歴表示, XML) Example of multiple species within hedge
Wooded area tagged with multiple species エリア 71168543 (iD, JOSM, Potlatch2, 履歴表示, XML) Example of an area with taxon tagging

分類名の選択

It may seem absurd, but many common tree species have a range of widely used formal taxonomic names. Examples include:

  • London Plane (de: ;es: Plantano de Pase ; fr: Platane à feuilles d'érable), this is named as Platanus x acerifolia on [1], but the standard name used in Britain and Ireland is Platanus x hispanica.
  • Horse Chestnut (dr: Rosscastanie; es: ; fr: Marronnier d'Inde).
  • Silver Birch (de: Birke; es: ; fr: Bouleau verruqueux). The standard name used throughout Northern Europe is Betula pendula, but the nomen dubium Betula alba has been used recently in the standard floras for the Iberian Peninusla (Flora Iberica, and provincial floras).

As many taxonomic names are in a state of flux because of revisions based on molecular phylogeny, and botanists in different countries often have slightly different concepts of particular taxa, it is recommended to use the name current in the standard flora for a region. Many of these lists are available on-line, for instance the Botanical Society of the British Isles taxonomic list. Particular problems arise when these standard lists are revised as recently happened on the publication of the 3rd edition of Stace's Flora or Britain and Ireland. If in doubt be conservative in choice of taxonomic names (often this means not using wikipedia, as articles are frequently updated to reflect recent research which may not become accepted).

For well-known species such as trees the common vernacular names are often very stable and highly conserved. It is therefore good practice to also add a taxon tag name-spaced with a two character ISO-language code).

In general use of the full taxonomic name; i.e., including author(s) and date, is not needed.

関連するタグ

An alternative to using taxon is to use tags for each taxonomic category: the most widely used ones are:

In practice these are much more widely used synonyms for (the rarely used, or unused) taxon:genus & taxon:species. As tagging of trees has developed it has been found that the two styles of tagging biological nomenclature are not mutually exclusive and can be used successfully together. Use of genus with either species or taxon makes resolution of the some of the nomenclatural difficulties mentioned above rather easier to resolve.

植生のカバー値の記録

If tagging an area, way or node there may be reasons to record the cover=* value of different species within an area. Presented below is a method for recording plant cover within a given area; e.g., a wood or marsh.

Percentage cover is usually recorded by using a quadrat or measuring out a specific area and then estimating by eye the coverage of different species within that area. Note: Remember that percentage cover can add up to over 100% because there are multiple layers/canopies within a habitat.

Estimating species frequency

  • DAFOR standing for dominant, abundant, frequent, occasional, rare is a quick way of measuring coverage or frequency of a plant taxon=* within a given area. The dafor=* tag may require measuring an area or use of a quadrat but is generally a rough estimation of plant coverage. For instance dafor:Ganzia rigens=Dominant or dafor:Fagus sylvatica=Occasional.

植物の株数の記録

ノード、ウェイ、エリアに plant_count=* を使用して植物の家族を記録します。

関連するプロジェクト