In the study, a team led by archaeologists from Bar-Ilan University and the Hebrew University described the bio-archaeological remains of the Philistine culture during the Iron Age (12th century to 7th century BCE).
Researchers compiled a database of plant remains extracted from Bronze and Iron Ages sites in the southern Levant, both Philistine and non-Philistine.
By analysing this database, the researchers concluded that the Philistines brought to Israel not just themselves but also their plants. The species they brought were all cultivars that had not been seen in Israel previously.
"The edible parts of these species - opium poppy, sycamore, and cumin - were not identified in the archaeobotanical record of Israel prior to the Iron Age, when the Philistine culture first appeared in the region," said Sue Frumin, a PhD student at the Bar-Ilan University.
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In addition to the translocation of exotic plants from other regions, the Philistines were the first community to exploit over 70 species of synanthropic plants (species which benefit from living in the vicinity of man) that were locally available in Israel.
These plant species were not found in archaeological sites pre-dating the Iron Age, or in Iron Age archaeological sites recognised as belonging to non-Philistine cultures - Canaanite, Israelite, Judahite, and Phoenician.
The fact that the three exotic plants introduced by the Philistines originate from different regions accords well with the diverse geographic origin of these people.
The results of the research indicate that the presence of the Philistine culture in Israel had a major and long-term impact on local floral biodiversity.
The study was published in the journal Scientific Reports.