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- 12.1. Marine Intertidal – Rocky Shoreline
- 12.2. Marine Intertidal – Sandy Shoreline and/or Beaches, Sand Bars, Spits, etc.
- 12.3. Marine Intertidal – Shingle and/or Pebble Shoreline and/or Beaches
- 13.1. Marine Coastal/Supratidal – Sea Cliffs and Rocky Offshore Islands
- 14.1. Artificial - Terrestrial – Arable Land
- 14.2. Artificial - Terrestrial – Pastureland
- 14.3. Artificial - Terrestrial – Plantations
- 14.4. Artificial - Terrestrial – Rural Gardens
- 14.5. Artificial - Terrestrial – Urban Areas
- 14.6. Artificial - Terrestrial – Subtropical/Tropical Heavily Degraded Former Forest
- 1.5. Forest – Subtropical/tropical dry
- 1.6. Forest – Subtropical/tropical moist lowland
- 1.7. Forest – Subtropical/tropical mangrove vegetation above high tide level
- 1.9. Forest – Subtropical/tropical moist montane
- 3.5. Shrubland – Subtropical/tropical dry
- 3.6. Shrubland – Subtropical/tropical moist
- 3.7. Shrubland – Subtropical/tropical high altitude
- 4.5. Grassland – Subtropical/tropical dry
- 4.7. Grassland – Subtropical/tropical high altitude
Since rats both feed on, and disperse the seed of invasive species, the control of both invasive plants and mammals is linked closely. Rats not only feed on guava, but they occasionally pith twigs of Mexican thorn in the lowlands and take their seed. It is not known whether the seeds are destroyed in this process, so a dispersal role has yet to be demonstrated. However, many other species are probably successfully dispersed, including blackberry and raspberry, two favoured food sources at higher altitudes. (Lambdon, P. & Darlow, A. (2008) Botanical Survey of Ascension Island and St. Helena 2008. RSPB);
Pagad S, Wong L J (2022). Global Register of Introduced and Invasive Species Ascension Island, Saint Helena, Ascension and Tristan da Cunha. Version 1.4. Invasive Species Specialist Group ISSG. Checklist dataset https://doi.org/10.15468/vijxee;