However seedlings may be outcompeted by seedlings of obligate seeder species. Instead, it can only regenerate by seed, and is thus termed an obligate seeder. The seeder creates a small circular impression, that is used to represent seeds. It even invented a mechanical seeder that plants cultured juvenile geoducks on subtidal beds. The Seeder vessels scatter red virus particles across the landscape. Other variants include the Berserker and an automated terraforming seeder ship. The hornbeam is a prolific seeder and is marked by vigorous natural regeneration. A seeder is a stamp-type leatherworking tool used in leather carving. Helir-Valdor Seeder (born 7 September 1964) is an Estonian politician. The assassinations of Seeder and Shanab resulted in Hamas calling off the ceasefire with Israel. Fast days were also important, particularly in Seeder culture. He was followed by Helir-Valdor Seeder on 13 May 2017. Seeder has a master's degree in economics from the Estonian University of Life Sciences. His Seeder appearance first appeared in "Swamp Thing #21". In 2013, Howell played Seeder in "".