JA:Invasive Non-Native Species

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Invasive Non-Native Species - Giant Hogweed (Heracleum mantegazzianum) (non-native in the UK)

Invasive Non-Native SpeciesInvasive Alien Species (IAS) は、通常は存在しない自然環境に誤ってあるいは意図的に導入され、新しい環境に深刻な悪影響をおよぼす動植物です。[1]


このガイドでは、経済的、環境的、または生態学的に侵入した生息地や生息域に悪影響を与える植物のマッピングについて説明します。 詳細については、Wikipediaの外来種を参照してください。





taxon=* を使用して、ラテン語の二語名の学名で特定された非在来種にタグをつけます。





Recording Vegetation Cover Values

areawaynodeのタグを付けるときに、エリア内の異なる種の cover=* 値を記録する理由があるかもしれません。ここでは、木や沼地など、指定された領域内の植物の覆いを記録する方法について説明します。

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 Abundance

  • 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.

Recording Number of Plants

The number of individual plants associated with a point, line or area may need to be recorded. This information maybe used for quantifying the amount of resource needed to manage this species in terms of pesticide application or cutting time.






何千もの侵入種が存在します。詳細については、リンクを参照してください。 It would be appropriate to use OpenStreetMap to record the most prevalent and damaging plant species. Here follows a few examples of the plants in question for the UK. Please add further sections for other countries or regions.

Invasive Non-Native Species - Giant Hogweed (Heracleum mantegazzianum) (in the UK)
Invasive Non-Native Species - Japanese Knotweed (Fallopia japonica) (in the UK)
Invasive Non-Native Species - Rhododendron (Rhododendron sp) (in the UK)
Invasive Non-Native Species - Himalayan Balsam (Impatiens glandulifera) (in the UK)
  1. European Commission, Environment, Nature & Biodiversity, Invasive Alien Species, last retrieved on 27 April 2015.