Displaying 21 - 30 of 45
Figueroa-Rangel, Willis, Olvera-Vargas
Key questions for understanding the resilience and variability of Mexican Neotropical cloud forest assemblages in current and future climate change include: How have human disturbances and climate change affected the dynamics of the cloud forest…
Type: Document
Year: 2010
Virah-Sawmy, Willis, Gillson
Aim There remains some uncertainty concerning the causes of extinctions of Madagascar's megafauna. One hypothesis is that they were caused by over-hunting by humans. A second hypothesis is that their extinction was caused by both environmental…
Type: Document
Year: 2010
Warren, Sherman, Zeidler
This report represents the final deliverable for the project entitled Assessment of Livestock Grazing Impacts on Cultural Resources and Fuels at Mākua Military Reservation, carried out by the Center for Environmental Management of Military Lands (…
Type: Document
Year: 2007
Gillson, Willis
Too often, wilderness conservation ignores a temporal perspective greater than the past 50 years, yet a long-term perspective (centuries to millennia) reveals the dynamic nature of many ecosystems. Analysis of fossil pollen, charcoal and stable…
Type: Document
Year: 2004
Hirsch, Kafka, Todd
During the next few decades, a considerable portion of the productive boreal forest in Canada will be harvested and there is an excellent opportunity to use forest management activities (e.g., harvesting, regeneration, stand tending) to alter the…
Type: Document
Year: 2004
Rude, Jones
This bibliography is a by-product of a joint effort between the National Park Service and the USFS Fire Sciences Lab to produce a review of knowledge on fire effects on cultural resources. The bibliography does include some references on the…
Type: Document
Year: 2001
Crawford
Mountain quail (Oreortyx pictus) are among the least studied of the North American quails. The prehistoric and early historic distributions of this bird are uncertain. In the Pacific Northwest, mountain quail were first recorded by Lewis and Clark…
Type: Document
Year: 2000
Hunter, Ludolph
Archaeological and historical evidence on status of northern bobwhites (Colinus virginianus) in southern Ontario prior to European settlement is not clear. The bird was documented on the Essex and Kent County prairies at the time of European…
Type: Document
Year: 2000
Lissoway
The rejuvenating effects of natural fires prior to 1900 in Southwestern forest communities have been replaced by recent, unprecedented crownfires. These wildfires have given rise to planned expansion of management fire as a tool for ecosystem…
Type: Document
Year: 1997
Cartledge
[no description entered]
Type: Document
Year: 1996