Download or read book Habitat Management for Red Tree Voles in Douglas fir Forests written by Mark H. Huff and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Habitat Management for Red Tree Voles in Douglas fir Forests written by Mark H. Huff and published by . This book was released on 1992 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biology and Management of Old growth Forests written by Mark H. Huff and published by . This book was released on 1991 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tree Voles written by Eric D. Forsman and published by . This book was released on 2016 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Red Tree Vole Habitat and Microhabitat Utilization in Douglas fir Forest of Northern California written by Nina Meiselman and published by . This book was released on 1987 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tree Voles written by Eric D. Forsman and published by . This book was released on 2016 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nest site Characteristics of Red Tree Voles in Douglas fir Forests of Northern California written by Nina Meiselman and published by . This book was released on 1992 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Estimation of Population Age Structure Detection Probability and Density of Red Tree Voles in Oregon written by Chad A. Marks-Fife and published by . This book was released on 2016 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: Red tree voles (Arborimus longicaudus) are a unique species of Arvicoline rodent found in western Oregon and northwest California. Their preferred habitat is mature and old-growth coniferous forest dominated by Douglas-fir (Pseudotsuga menziesii). Tree voles are an important prey item for northern spotted owls and many other predators, but are extremely difficult to sample. As a result, little is known about their abundance or population dynamics. We used several methods to describe tree vole detectability, density, and population age structure. We verified a relationship between molar tooth development and age in red tree voles, allowing us to estimate the age of voles recovered in pellets regurgitated by spotted owls in Oregon. We found that the age distribution of tree voles in spotted owl pellets varied from year to year but not from region to region within the species range. We found evidence for a positive relationship between annual precipitation and the proportion of juvenile tree voles in owl pellets on one of two study areas. We conducted modified line-transect surveys at 31 locations representing three forest stand age classes (young, mature, old) in the Oregon Coast Range to visually detect potential red tree vole nests. We climbed trees where potential nests were detected from the ground in order to determine the species and the occupancy status of nests. We used the transect and climbing data and distance sampling techniques to estimate detection probabilities and density of active tree vole nest trees in relation to forest age class. Our surveys suggested that density of tree vole nest trees increased with forest age, whereas detection probability of nest trees decreased with forest age. Regardless of forest age, mean detection probability of nest trees was low (

Download or read book General Technical Report PNW GTR written by and published by . This book was released on 1992 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mammal Community Dynamics written by Cynthia J. Zabel and published by Cambridge University Press. This book was released on 2003-09-18 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table of contents

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1993-04 with total page 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1993-03 with total page 1482 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Habitat Management written by Brenda C. McComb and published by CRC Press. This book was released on 2007-06-20 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, conflicts between ecological conservation and economic growth forced a reassessment of the motivations and goals of wildlife and forestry management. Focus shifted from game and commodity management to biodiversity conservation and ecological forestry. Previously separate fields such as forestry, biology, botany, and zoology merged

Download or read book Northern Spotted Owl Management Plan in the National Forests CA OR WA written by and published by . This book was released on 1992 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Management of Amphibians Reptiles and Small Mammals in North America written by Robert C. Szaro and published by . This book was released on 1988 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically the management of public lands from a multiple use perspective has led to a system that emphasizes those habitat components or faunal elements that primarily resulted in some sort of definable economic value. While this often benefitted other species that were not even considered in the original prescriptions, it also negatively impacted others. We no longer can afford to take this simplistic view of ecosystem management. We need to use a more holistic approach where ecological landscapes are considered as units, and land management practices incorporate all elements into an integrated policy. This includes examining the impacts of proposed land uses on amphibian, reptile, and small mammal populations.

Download or read book Umpqua National Forest N F Stewart Mining Operation Forest County Douglas County Lane County written by and published by . This book was released on 1997 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Umpqua National Forest N F Lemolo Watershed Projects written by and published by . This book was released on 2005 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: