The purpose of this project was to create a GIS-based model that identifies specific focal areas throughout the range of the redwoods. Focal areas were defined as zones that offer the best conservation opportunities for long-term protection and maintenance of the redwood ecosystem based on current conditions. GIS was utilized because of its spatially explicit architecture and advanced analytical capability.

This model was produced for Save-the-Redwoods League as part of their overall Master Plan – an organizational blueprint for protecting the redwood ecosystem. More specifically, this model was intended to help the League target their future proactive conservation planning efforts more effectively as part of their overall conservation mission while supplying a broader organizational tool that could be shared with its conservation partners in the region.

Island foxes (Urocyon littoralis) inhabit the six largest Channel Islands off the coast of southern California, with a separate subspecies recognized on each island: San Miguel Island fox (U. l. littoralis), San Nicolas Island fox (U. l. dickeyi), San Clemente Island fox (U. l. clementae), Santa Catalina Island fox (U. l. catalinae), Santa Rosa Island fox (U. l. santarosae), and Santa Cruz Island fox (U. l. santacruzae). Due to their limited geographic distribution and small population sizes, foxes on all six islands have been listed as Threatened by the State of California, and all subspecies except those on San Nicolas and San Clemente have been listed as Endangered by the U.S. Fish and Wildlife Service due to recent precipitous population declines and high risk of extinction.

Due to the persistent high risk of this island species, robust monitoring of fox populations and their threats is a key component of recovery and long-term management. In response to a request from the Recovery Coordination Group of the Island Fox Integrated Recovery Team, the Conservation Biology Institute was commissioned by The Nature Conservancy, with additional funding from the Catalina Island Conservancy, to develop a monitoring framework for five subspecies of island fox on San Miguel, San Nicolas, Santa Catalina, Santa Rosa, and Santa Cruz islands. A monitoring framework previously developed for the U.S. Navy for San Clemente Island foxes (Framework Monitoring Plan for the San Clemente Island Fox, 2006), in addition to years of monitoring and research on all six islands, provided the foundation for the current multi-island monitoring framework. This document thus represents the first comprehensive synthesis of monitoring data, objectives, and protocols across multiple Channel Islands with foxes.

This report describes the considerations and approaches used to identify specific monitoring objectives, determine parameters to address these objectives, and develop protocols to measure these parameters. It presents illustrative island-specific examples of monitoring scenarios designed to address current monitoring objectives, but with different levels of effort and resulting precision. Recommendations are offered as guidelines with some built-in flexibility to account for on-the-ground feasibility. It is expected that island managers will tailor and adapt protocols for on-the-ground use, based on their resources and priorities, understanding that there is generally a trade-off between monitoring intensity and information value, and that future advances in our knowledge of fox ecology and in the development of field and analytical techniques may result in adaptation of this framework monitoring protocol.

CBI led the development of a science-based adaptive habitat management plan for the approximately 3,000-acre Ramona Grasslands Open Space Preserve in central San Diego County.  The Ramona Grasslands are a regionally important conservation area, supporting a variety of target resources, including vernal pools and rare vernal pool species, Stephens’ kangaroo rat, wintering and breeding raptors, riparian habitats and arroyo southwestern toads, and native grasslands.  The Ramona Grasslands are grazed by cattle, which maintain habitat suitability for some species but adversely affect other natural resources.  CBI initially partnered with The Nature Conservancy to develop a Framework Management Plan for the Grasslands, which laid out a scientific basis for implementing management activities, describe experimental manipulations to increase our understanding of the dynamics of the system, and to develop a biological monitoring program to assess changes in resource states.

CBI then worked with the County of San Diego Department of Parks and Recreation and their contractors to develop a detailed description of baseline conditions in the Ramona Grasslands and specific management and monitoring recommendations (Area Specific Management Directives) that were derived from the Framework Management Plan.  Development of the management plan was preceded by a 2-year baseline field monitoring program that was coordinated by CBI.  The Area Specific Management Directives proposed an adaptive grazing strategy to balance resource needs and optimize habitat quality across the preserve.  Monitoring activities proposed by the management plan included surveys of grassland, vernal pool, and riparian plants; characterization of stream channel geomorphology and water quality; and avian, small mammal, amphibian, and fairy shrimp surveys.

1. Protected areas form one of the main pillars of biodiversity conservation throughout the world. Only 1.2 percent of the Alberta Foothills is currently protected, which is woefully inadequate by any scientific standard.

2. Protecting the full array of native biodiversity (representation) is an extremely important consideration in a regional protected areas strategy.

3. Approximately 75 percent of the natural variability present in the Alberta Foothills (measured as enduring features) is not adequately represented in a network of protected areas.

4. Approximately 82 percent of the region is comprised of logging tenures and much of this same area is subjected to intensive oil and gas development.

5. Change detection analysis has shown that nearly 9 percent of the ecoregion (~640,000 ha) has been impacted by activities visible from space since 1990 and much of this has been either by a growing network of oil and gas infrastructure or as clusters of clearcut logging. Impact on some species (e.g., woodland caribou) far exceeds this area.

6. The region contains over 36,000 wells, numerous pipelines, and thousands of kilometers of seismic exploration.

7. The Alberta Foothills no longer possesses large intact forest landscapes (undisturbed blocks >50,000 ha), but approximately 1/3 of the region is comprised of smaller forest remnants (over 2,100 with mean size of 1,500 ha) which forms the natural backbone of the region and form one of the major building blocks for protecting the many ecological values identified in the region.

8. Biodiversity values evaluated in the endangered forest mapping included: (1) rare forest types (old growth and less fragmented forests), (2) locations of rare and endangered species and their special habitats, (3) woodland caribou, (4) grizzly bear, (5) freshwater species such as bull trout and arctic grayling, and (6) forest and water-dependent bird species. Many of these values are being seriously degraded and some threatened with local extinction.

9. Decision support mapping results highlight areas within the Alberta Foothills that still contain high values and some of these values are of global or national significance. The highest scoring areas should be considered as candidates for an expanded protected areas network for the region. Recommended starting target should be approximately 16 percent of the ecoregion including existing and new protected areas. Failure to act will result in numerous species extirpations and significant loss of overall ecological integrity, including the degradation of several important ecosystem services.

10. In addition to new protected areas, landscape connectivity along waterways and over land should remain as an important consideration in an overall regional conservation strategy.

11. To be effective, an expanded protected area network alone will not be enough to maintain the conservation values present in the region today. New protected areas should be established strategically in the context of a region under dramatic pressure from development and extractive use. Management and even restoration in some areas should also be considered in an overall plan to achieve ecological sustainability.

12. The combination of Neatweaver®, EMDS®, and ArcMap® provides a powerful decision support planning tool set that can successfully address the topic of High Conservation Value and Endangered Forests.

In November 2002, two science-based conservation organizations, the Conservation Biology Institute (Corvallis, Oregon) and World Wildlife Fund (Ashland, Oregon), conducted an ecological assessment of the mid and lower reaches of the Klamath, including its tributaries and the Upper Sacramento River that flows into the mid Klamath.

Ecosystem health was assessed using computer mapping (Geographic Information Systems – GIS) and satellite interpretation technologies across 870 watersheds; 655 within the mid and lower Klamath and 215 within the Upper Sacramento River. We used a series of indicators or surrogates to assess watershed condition on a relative basis, including road density, stream-road intersections, logging in the basin over a three-decade period, and mining activities.

Because this is the first subbasin assessment of relative ecological condition of the mid and lower Klamath River, this executive summary will focus mainly on the Klamath findings as they are particularly relevant to policy and legislative efforts to manage water uses and restore ecosystem health throughout the Klamath River. In addition, according to monitoring stations of the United States Geological Service, the Klamath is in worse shape today than it was in 2002, the year that 34,000 to 68,000 salmon and trout died from disease in the lower Klamath River due primarily to low water flows and high water temperatures.

As more people move into remote areas throughout western forests and rangelands, it is increasingly important for scientists, land managers, policy makers, and the public to understand the natural fire dynamics of these systems. Over the last decade, wildfires have burned on average approximately 4.2 million acres each year with lows of 2.3 million acres in 1993, 1995, and 1998 and a decadal high of 8.4 million acres in 2000 (NIFC 2004). There is growing concern about the number of severe fires throughout the West and their impact on human communities and local economies. Some argue that the buildup of fuels to unnatural levels is primarily the result of decades of fire suppression while others argue that prolonged and more frequent droughts are most responsible. While both positions are defensible, it is unwise to oversimplify the situation as natural fire regimes and the human impacts on these regimes can be quite complex and highly variable from place to place (Turner et al. 2003).

The purpose of this study was to develop an approach to mapping fire hazard at an intermediate spatial scale for the Oregon portion of the Illionis River Basin and to demonstrate how such an approach can be used to identify and prioritize fire management activities that would have the greatest chance of minimizing human losses from fire while protecting the many conservation values of the region. The Illinois River Basin was chosen because the rural communities in this basin were among the most threatened by the Biscuit fire of 2002.

Detailed information for the Biscuit Fire can be found at the official US Forest Service Biscuit Fire website.

This report was prepared to provide an independent examination of the post-fire management options being considered for the Biscuit Fire (2002) within the Siskiyou National Forest in southwestern Oregon. This report has three main objectives:

  1. summarize the ecological setting and impact of the Biscuit Fire
  2. review the scientific literature on post-fire management (including salvage logging)
  3. conduct a GIS-based mapping analysis that examines the ecological and administrative constraints to post-fire management of the Biscuit Fire

Detailed information for the Biscuit Fire can be found at the official US Forest Service Biscuit Fire website.

CBI staff worked on a comprehensive analysis of inventoried roadless areas within six ecoregions of the Pacific Northwest encompassing the range of the northern spotted owl (Strix occidentalis caurina) east and west of the Cascade Mountains in Washington, Oregon, and northern California revealed that roadless areas contributed to:

This document is a synthesis of the literature on roadless importance, drawing primarily on the published studies presented in the bibliography and available from the World Wildlife Fund and the Conservation Biology Institute. The authors of this document have spent nearly a decade compiling databases and conducting satellite imagery and computer mapping assessments that document the importance of roadless areas and the extent of forest fragmentation across the nation. This document provides a scientific foundation in support of lasting protections for roadless areas.

The primary response to reducing catastrophic fire losses has been fire control with the goal of preventing large fire events. However, growing evidence suggests we will likely never be able to eliminate fires on highly fire-prone landscapes.  Thus, in conjunction with analysis of traditional fire management approaches (including fuel breaks and suppression), we are exploring a range of alternative approaches to fire management that could potentially greatly minimize community vulnerability to these inevitable fires.  In conjunction with the USGS, CBI is focusing on three areas where decision making may impact the vulnerability of communities to wildfire:
(1)  Wildland landscape management practices that affect the probability of potentially destructive fires reaching urban environments. Research team leader: Dr. Ross Bradstock
(2)  The extent and pattern of residential development and wildland-urban interface zones that play a key role in the probability of fires encroaching into urban environments. Research team leader: Dr. Alexandra Syphard
(3)  Patterns of home construction and urban landscaping that determine fire spread within the urban environment. Research team leader: Dr. C.J. Fotheringham.
In each of these spatial domains, management practices have potential for reducing wildfire losses in the urban environment. Through modeling the outcomes of alternative management practices, we will provide decision makers with information on future losses under ‘business as usual’ and alternative management or policy scenarios. These outcomes will be evaluated in a Bayesian decision-making network analysis that will provide optimum combinations of treatments from these three management areas.

This report assesses potential impacts of feral pig populations in southern California (San Diego, Riverside, Imperial, and Orange counties) and Baja California, with an emphasis on San Diego County. We compiled information on the status of pigs in these areas from the literature and interviews with numerous individuals knowledgeable about feral pig populations, including a population recently introduced into San Diego County. We also reviewed available information on the potential impacts of feral pigs on natural resources, water systems, agriculture, and human health, and discussed the feasibility of various control and eradication options.

We developed population and habitat suitability models for feral pigs in San Diego County to examine the potential for numeric and geographic expansion following the recent introduction near El Capitan Reservoir. The models suggest that the population has the potential to grow rapidly and expand into large expanses of currently unoccupied habitat. Such expansion could harm natural biological resources, including riparian and oak woodland communities and numerous sensitive species. It is possible that populations could establish in such protected lands as Cuyamaca Rancho State Park and Volcan Mountain Preserve, as well as various wilderness areas. This could greatly diminish and possibly nullify large conservation investments already made in this region, including habitat restoration efforts. Finally, an expanding feral pig population in San Diego County could invade and cause grave damage in Baja California, where feral pig populations have not, to date, been reported.