A peer-reviewed open-access journal BioRisk 3: 137–160Complex (2009) ex situ - in situ approach for conservation of endangered plant species... 137 doi: 10.3897/biorisk.3.5 RESEARCH ARTICLE www.pensoftonline.net/biorisk Biodiversity & Ecosystem Risk Assessment Complex ex situ - in situ approach for conservation of endangered plant species and its application to Iris atrofusca of the Northern Negev Sergei Volis1, Michael Blecher2, Yuval Sapir3 1 Life Sciences Department, Ben Gurion University of the Negev, Israel 2 Ein Gedi Nature Reserve, Israel Na- ture and Parks Authority, Israel 3 Porter School for Environmental Studies and Department of Plant Sciences, Tel Aviv University, Israel Corresponding author: Sergei Volis (
[email protected]) Academic editors: L.J. Musselman, F. Krupp | Received 4 February 2009 | Accepted 14 December 2009 | Published 28 December 2009 Citation: Volis S, Blecher M, Sapir Y (2009) Complex ex situ - in situ approach for conservation of endangered plant species and its application to Iris atrofusca of the Northern Negev. In: Krupp F, Musselman LJ, Kotb MMA, Weidig I (Eds) Environment, Biodiversity and Conservation in the Middle East. Proceedings of the First Middle Eastern Biodiversity Congress, Aqaba, Jordan, 20–23 October 2008. BioRisk 3: 137–160. doi: 10.3897/biorisk.3.5 Abstract We introduce a novel approach for conservation of endangered plant species in which ex situ collections maintained in natural or semi-natural environment are a part of a complementary ex situ – in situ con- servation strategy. We provide detailed guidelines for 1) representative sampling of the populations; 2) collection maintenance; and 3) utilization for in situ actions.