Reports

Reports and documents by IAE staff.  

Seed dormancy in high elevation plants: implications for ecology and restoration

Thomas N. Kaye   1997

Seed germination is a crucial event in the life of every sexually reproduced higher plant. A portion of the seeds of many species are dormant; they do not germinate unless specific environmental signals or events occur. The objective of this research was to determine the extent of seed dormancy in 28 species of grasses and […]

Reviving the connection between children and nature: through service-learning restoration partnerships

Jennie R. Cramer   2008

Engaging students in environmental restoration through service-learning partnerships is an effective tool for restoring native ecosystems while simultaneously rebuilding relationships between children and nature and inspiring future stewards of the land. Place-based education provides a framework for connecting students to the land. Stewardship-based service-learning provides a productive means by which to accomplish both education and […]

Polycross populations of the native grass Festuca roemeri as pre-varietal germplasm: their derivation, release, increase, and use

Dale C. Darris, et al.   2008

Results of a recent common-garden study provide evidence needed to delineate appropriate seed transfer zones for the native grass Festuca roemeri (Pavlick) E. B. Alexeev (Poaceae). That information has been used to develop pre-variety germplasm releases to provide ecologically and genetically appropriate seeds for habitat restoration, erosion control, and other revegetation projects in 5 regions […]

Patterns of rarity in the Oregon flora: implications for conservation and management

Thomas N. Kaye, et al.   1997

Threatened and endangered species are a significant component of Oregon’s flora, comprising 0.2% to over 15% of the state’s plant taxa, depending on one’s definition of endangerment. With such a potentially large group of plants to conserve, generalizations regarding types of rarity and threats to these species would help improve our basic understanding and management […]

The Willamette Valley Seed Increase Program: Developing genetically diverse germplasm using an ecoregion approach

Kimiora Ward, et al.   2008

The goal of the Institute for Applied Ecology’s Willamette Valley Seed Increase Program is to develop a supply of ecologically appropriate, genetically diverse native plant material for restoration of prairie ecosystems in the Willamette Valley. In creating restoration germplasm we seek to maximize genetic diversity while simultaneously protecting genetic integrity of extant native populations. In […]

Seed transfer zones for a native grass Festuca roemeri

Barbara L. Wilson, et al.   2008

A common-garden study of Festuca roemeri (Pavlick) E. B. Alexeev (Poaceae) revealed substantial genetic variation within and among 47 populations from throughout its range in the Pacific Northwest, US, for growth, fitness, phenological, and morphological traits. Using climatic and physiographic variables, genetic patterns over the landscape were examined through principal component and regression analysis. Elevation […]

Reintroduction of rare and endangered plants: common factors, questions and approaches

Edward O. Guerrant Jr., and Thomas N. Kaye   2007

The science of reintroduction for conservation purposes is young, and there is still much to learn about the practice. As a means to achieving biological goals of successfully establishing new populations to enhance a species survival prospects, and project goals, such as learning how to go about establishing new populations, reintroduction projects are best done […]

Effects of controlled-burns on native and non-native vegetation in mid-elevation dry meadows of the Umpqua National Forest

Thomas N. Kaye, et al.   2004

This study investigated the effects of controlled burns on native and non-native vegetation in mid-elevation dry meadows of the Umpqua National Forest. The goals of the study were to determine if fire could release native seed banks and increase vigor of native bunchgrasses and forbs, while reducing populations of invasive plants (in particular the exotic […]

Vital steps toward success of endangered plant reintroductions

Thomas N. Kaye   2008

Reintroduction of endangered plants faces many challenges, but the survival of some species may depend on its success. What measures should practitioners take to ensure a successful project, and how should success be measured? Steps in the reintroduction process include planning and identification of objectives, finding source material, propagation, site selection, site preparation, outplanting, monitoring, […]

Seeds of Success for the Bureau of Land Management, Eugene District

Matt Blakeley-Smith   2010

During 2010 the Institute for Applied Ecology (IAE) worked in collaboration with the Bureau of Land Management (BLM), Eugene District to collect seed under the Seeds of Success program. Seeds of Success (SOS) is a national native seed collection program coordinated by the BLM. The goal of SOS is to provide wild collected seed for […]