4.6 Article

Plant Diversity in Archaeological Sites and Its Bioindication Values for Nature Conservation: Assessments in the UNESCO Site Etruscan Necropolis of Tarquinia (Italy)

Journal

SUSTAINABILITY
Volume 15, Issue 23, Pages -

Publisher

MDPI
DOI: 10.3390/su152316469

Keywords

floristic assessment; ruderal vegetation; cultural heritage conservation; biodiversity conservation; plant ecology; archaeological sites management

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Plants in archaeological sites can pose risks to monument conservation, but they also serve as refugia for plant biodiversity. By analyzing the Etruscan necropolis of Monterozzi in Tarquinia, we found that this site is home to a variety of plant species with high ecological interest, which are associated with both current and past land uses. Moreover, compared to well-known archaeological sites like Rome, the site's plant diversity is remarkably high, highlighting the need to consider plant diversity in management activities to protect its natural values.
In archaeological sites, plants can be a risk for monument conservation. However, in these sites, a refugium for plant biodiversity is often detected, such as in the UNESCO site Etruscan necropolis of Monterozzi in Tarquinia, which still holds a Special Protection Area for bats. In this site, we previously evaluated the positive and negative effects of vascular plants on the conservation of the hypogeal tombs. To contribute in assessing the role of archaeological sites in supporting plant diversity and interpreting its bioindication values for nature conservation, we analyse in this relevant place the floristic interest and richness and the plant communities growing on tumuli, trampled, and less disturbed areas. The results revealed the presence of several plants with high naturalistic interest, such as the community's representative of synanthropic and natural Mediterranean grasslands, which arise both from the present and the past uses of the area. The high naturalistic values of the site are also assessed, considering its remarkable richness of species/area compared with the well-known archaeological sites of Rome. These findings further indicate that plant diversity needs to be considered in planning management activities in archaeological sites to also protect their natural values.

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