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Nearly 700 species of plants may become extinct by the year 2000. Faced with this overwhelming prospect, plant conservationists must take advantage of every technique available. This unique work summarizes our current knowledge of the genetics and population biology of rare plants, and integrates it with practical conservation recommendations. It features discussions on the distribution and significance of genetic variation, management and evaluation of rare plant germplasm, and conservation strategies for genetic diversity. Case studies focusing on specific problems offer important insights...

Global warming is expected to change fire regimes, likely increasing the severity and extent of wildfires in many ecosystems around the world. What will be the landscape-scale effects of these altered fire regimes? Within what theoretical contexts can we accurately assess these effects? We explore the possible effects of altered fire regimes on landscape patch dynamics, dominant species (tree, shrub, or herbaceous) and succession, sensitive and invasive plant and animal species and communities, and ecosystem function. Ultimately, we must consider the human dimension: what are the policy and...

Global warming is expected to change fire regimes, likely increasing the severity and extent of wildfires in many ecosystems around the world. What will be the landscape-scale effects of these altered fire regimes? Within what theoretical contexts can we accurately assess these effects? We explore the possible effects of altered fire regimes on landscape patch dynamics, dominant species (tree, shrub, or herbaceous) and succession, sensitive and invasive plant and animal species and communities, and ecosystem function. Ultimately, we must consider the human dimension: what are the policy and...

This volume contains a selection of the papers presented at the sixth meeting of the International Organization for Qumran Studies, held in 2007 in Ljubljana, Slovenia, on the topic "Qumran Cave 1 Revisited: Reconsidering the Cave 1 Texts Sixty Years after Their Discovery." While the opening paper assesses theories about the character of Qumran Cave 1 in relation to the other Qumran caves, all other papers discuss texts from Cave 1, in particular six of the seven large scrolls found there in 1947: the two Isaiah scrolls, the Rule of the Community, the War Scroll, the Thanksgivings Scroll, and...

The practice of ecological restoration, firmly grounded in the science of restoration ecology, provides governments, organizations, and landowners a means to halt degradation and restore function and resilience to ecosystems stressed by climate change and other pressures on the natural world. Foundational theory is a critical component of the underlying science, providing valuable insights into restoring ecological systems effectively and understanding why some efforts to restore systems can fail. In turn, on-the-ground restoration projects can help to guide and refine theory, advancing the...