Treesearch

The eastern arc mountains (EAMs) are a chain of isolated mountains (534,000 ha) in Kenya and Tanzania surrounded by arid woodlands and influenced by the Indian Ocean. In 1900 there was three times the amount of forest cover there is today. Much of the original forests have been converted into agricultural crops. These mountains are recognized as a globally important 'hot spot' by World Wide Fund for Nature (WWF) and World Conservation of Union (IUCN) for forest biodiversity and are major national, regional and local sources of hydropower, water and wide array of forest-based benefits and...

The novel pathogen hypothesis describes host parasite relationships where a pathogen spreads into new geographical areas or into areas of previously unexposed "virgin" hosts. Often, measures of parasite virulence and host resistance are elucidated through pathogenic impacts on the "virgin" hosts. The myxosporean Myxobolus cerebralis, the causative agent of whirling disease in salmonid fish, qualifies as a novel pathogen with its recent introduction into North America from Europe in the 1950s. This introduction of a novel pathogen provides opportunity for insight into the etiology of...

This chapter concentrates on subalpine parklands and alpine meadows of southern British Columbia, Washington, Oregon, and western Montana. These areas lie on the flanks of several mountain ranges including the Olympics, the Cascades of Oregon and Washington, and the Coast Mountains in British Columbia.

Although the name was not changed, you are reading the first issue of a new journal. As you should all know by now, this issue represents the combination of The Journal of Wildlife Management (JWM) with the former Wildlife Society Bulletin (WSB). We want to emphasize a point: the content of WSB is included in the "new" JWM.

Now that the Journal and Bulletin are merged, it is time to explore opportunities rarely visited in the past. In our opinion, the Journal is the foremost wildlife biology and management journal in the world. But does that mean there is not room for improvement? Of course not! We suggest here some places to go where we rarely venture. Some of these topics are controversial; others are uncomfortable. In doing so, we recognize the need to use the Journal as a venue for addressing immediate needs while having the vision of providing for the future.

It is mid-December 2006, and we are in the process of completing issue number 4 of Volume 71. That is, we are working on the issue that will appear midway through 2007; yes, there is a long lead time required to pull an issue of The Journal of Wildlife Management (JWM) together. Between now, when we are writing this editorial, and when you read this, The Wildlife Society (TWS) officers will have decided who the editor for Volume 72 will be. Morrison stayed on an extra year (sorry about that) to help with the transition into the merged Journal of Wildlife Management-Wildlife Society...

Mountain pine beetle emergence was studied at 8760 ft, 9200 ft, and 9900 ft near Fraser, CO. Beetles began emerging at 8760 ft between July 9 and July 14 while no beetles emerged at 9200 ft and only one beetle emerged at 9900 ft during the same period. Beetle emergence continued at relatively low but fluctuating rates for the next two to three weeks. Peak emergence occurred about August 5 at 8760 ft, about August 12 at 9200 ft, and from August 12 to 19 at 9900 ft. Beetle emergence was complete by September 3. Average numbers of beetles emerging ranged from 5 to 256/ft2 of bark per tree...

Stereo photographs, hemispherical photographs, and stand data are presented with associated biomass and canopy fuel characteristics for five Interior West conifer stands. Canopy bulk density, canopy base height, canopy biomass by component, available canopy fuel load, and vertical distribution of canopy fuel are presented for each plot at several stages of sampling, each corresponding to a level of simulated low thinning (100, 75, 50, and 25 percent of the initial basal area). This guide will help fuel managers estimate canopy fuel characteristics in similar forest conditions.

Canopy bulk density (CBD) is an important crown characteristic needed to predict crown fire spread, yet it is difficult to measure in the field. Presented here is a comprehensive research effort to evaluate six indirect sampling techniques for estimating CBD. As reference data, detailed crown fuel biomass measurements were taken on each tree within fixed-area plots located in five important conifers types in the western United States, using destructive sampling following a series of four sampling stages to measure the vertical and horizontal distribution of canopy biomass. The six ground-ba...

This photo series was developed to help fire managers estimate ground and surface fuel loads that exist in cover types of the Southern Colorado Front Range wildland-urban interface. Photos and associated data representing low, medium, and high fuel loadings from this study are presented by forest type, along with examples of typical or median fuel loadings that were encountered.