Author: Helen M. HandsPublisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 28
Book Description
Status of the Loggerhead Shrike in the Northcentral United States
Author: Helen M. HandsPublisher:
ISBN:
Category : Bird populations
Languages : en
Pages : 28
Book Description
Updated Status Report on the Loggerhead Shrike (Eastern Population), Lanius Ludovicianus Migrans, in Canada
Author: Michael Derrick CadmanPublisher:
ISBN:
Category : Lanius
Languages : en
Pages : 34
Book Description
Migratory Nongame Birds of Management Concern in the Northeast
Author: Handbook for Nongame Bird Management and Monitoring in the Southeast Region
Author: William Charles HunterPublisher:
ISBN:
Category : Birds
Languages : en
Pages : 220
Book Description
Wisconsin Statewide Karner Blue Butterfly Habitat Conservation Plan and Environmental Impact Statement: Appendices to Habitat conservation plan (HCP) and Environmental impact statement (EIS)
Author: Publisher:
ISBN:
Category : Karner blue butterfly
Languages : en
Pages : 302
Book Description
Clark County Multiple Species Habitat Conservation Plan
Author: Ptilochronology
Author: Thomas C. Grubb Jr.Publisher: OUP Oxford
ISBN: 0191516260
Category : Science
Languages : en
Pages : 189
Book Description
This is the first book to summarize the methods, conceptual issues and results of studies using the interpretation of feather growth rates as an index of nutritional condition in birds. The author has coined the term ptilochronology (literally, 'the study of feather time') to describe this technique, which relies on the fact that as a feather grows it produces visible growth bars. Both the technique and its conceptual foundations have been applied worldwide to numerous studies of avian evolution, ecology, and conservation biology. The author reviews this work, chronicles the various criticisms that have been made, and describes how these have influenced the development of ptilochronology. He goes on to suggest experimental methodologies and analytical techniques to safeguard against invalid results. A final chapter summarises this new technique's contribution to avian biology, and suggests potential applications and a future research agenda. An appendix details specific measurements and describes the methodology associated with ptilochronology. Ptilochronology provides a practical resource as well as a conceptual understanding of how this technique can be used to address important questions in avian biology. It will be of relevance and use to professional avian biologists and ornithologists as well as to graduate students of avian behavioural ecology, evolution and conservation.
Assessment of Grassland Ecosystem Conditions in the Southwestern United States
Author: Publisher:
ISBN:
Category : Ecological disturbances
Languages : en
Pages : 176
Book Description
"Volume 2 (this volume) describes wildlife and fish species, their habitat requirements, and species-specific management concerns, in Southwestern grasslands. This assessment is regional in scale and pertains primarily to lands administered by the Southwestern Region of the USDA Forest Service (Arizona, New Mexico, western Texas, and western Oklahoma)."--Abstract.
Muscatatuck NWR
Author: Jennifer L. SierackiBird Families of North America
Author: Pete DunnePublisher: Houghton Mifflin
ISBN: 0358164079
Category : Nature
Languages : en
Pages : 293
Book Description
Focusing on families and their shared traits makes bird identification easier than ever. This guide takes readers beyond merely identifying birds to understanding them. Many birders can tell the difference between a White-eyed and Bell's Vireo but cannot begin to describe a vireo and what distinguishes members of this family from warblers or flycatchers. The "species by species" approach makes it difficult to appreciate birds for what they are: members of well-organized groupings united by common traits. Putting the focus on families, and their shared characteristics, makes bird identification easier and more meaningful. More than 150 color photos illustrate the 81 bird families of the United States and Canada.