Download or read book The Piedmont Naturalist Vol 1 1986 written by Bill Hilton, Jr. and published by Hilton Pond Center. This book was released on 2010-12-15 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Ruby throated Hummingbird written by June Osborne and published by University of Texas Press. This book was released on 2010-07-22 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this invitingly-written book, June Osborne paints a fully detailed portrait of perhaps the best-known hummingbird in the United States, the ruby-throat. There is no mistaking a hummingbird. Even people who hardly know a robin from a sparrow recognize that flash of iridescent feathers and the distinctive hovering flight. So popular have “hummers” become that even casual birdwatchers now travel great distances to hummingbird hot spots to see masses of birds in their annual migrations. Drawing from her own birdwatching experiences, June Osborne offers an “up close and personal” look at a female ruby-throat building her nest and rearing young, as well as an account of a day in the life of a male ruby-throat and stories of the hummers’ migrations between their summer breeding grounds in the United States and Canada and their winter homes in Mexico and Central America. In addition to this life history, Osborne recounts early hummingbird sightings and tells how the bird received its common and scientific names. After an overview of hummingbirds’ distinctive ways of feeding, flying, and conserving energy, she offers a detailed description of the ruby-throat that will help you tell females from males, immature birds from adults, and ruby-throats from similar species. Osborne also takes you on a visit to the “Hummer/Bird Celebration!” at Rockport, reviews hummingbird banding programs, and explains how to attract hummingbirds to your yard or apartment balcony.

Download or read book The Piedmont Naturalist written by Bill Hilton and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Regeneration Manual written by Mary L. Duryea and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Forest Regeneration Manual presents state-of-the-art information about current regeneration practices for southern pines in the United States. Over 1.2 billion seedlings of five major species -- loblolly, slash, longleaf, sand, and shortleaf -- are planted each year. In 22 chapters, the Manual details fundamental steps in establishing successful young pine plantations: regeneration planning, including economic and legal aspects; regeneration harvest methods; propagation by seed and vegetative techniques; bareroot and container seedling culturing in the nursery; measures of seedling quality; site potential; -- environment, associated vegetation, soils; matching species to sites; site preparation -- mechanical and chemical methods, fire, fertilization; seedling handling before planting; planting practices and measures of regeneration success; promoting early plantation growth and management of competing vegetation, insects, disease, and wildlife.

Download or read book Freshwater Fishes of North America written by Melvin L. Warren (Jr.) and published by JHU Press. This book was released on 2014-06-15 with total page 665 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The second volume of the definitive reference Freshwater Fishes of North America, encompassing families Characidae to Poeciliiadae, is the result of decades of analysis by leading fish experts from universities and reserch laboratories across North America" -- Page 4 de la couverture du volume 2.

Download or read book The American Midland Naturalist written by and published by . This book was released on 1992 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book written by 布什 and published by 清华大学出版社有限公司. This book was released on 2003 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: 责任者译名:布什。

Download or read book Allegheny National Forest N F Understory Vegetation Management Warren County written by and published by . This book was released on 1991 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Soil Science written by and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil is formed from physical and chemical weathering of rocks - processes described historically because they involve eons of time-by glaciation and by wind and water transport of soil materials, later deposited in deltas and loessial planes. Soil undergoes further transformations over time and provides a habitat for biological life and a base for the development of civilizations. Soil is dynamic -always changing as a result of the forces of nature and particularly by human influences. The soil has been studied as long as history has been documented. Numerous references to soil are found in historical writings such as Aristotle (384-322 B. c. ), Theophrastus (372-286 B. c. ), Cato the Elder (234-149 B. C. ) and Varro (116-27 B. c. ). Some of the earliest historical references have to do with erosional forces of wind and water. The study of soils today has taken on increased importance because a rapidly expanding population is placing demands on the soil never before experienced. This has led to an increase in land degradation and desertification. Desertifica tion is largely synonymous with land degradation but in an arid land context. Deterioration of soil resources is largely human induced. Poverty, ignorance, and greed are the indirect causes of desertification. The direct cause is mismanage ment of the land by practices such as overgrazing, tree removal, improper tillage, poorly designed and managed water distribution systems, and overexploitation.

Download or read book General Technical Report RMRS written by and published by . This book was released on 1998 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildland Fire in Ecosystems written by and published by . This book was released on 2000 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Allegheny National Forest N F Vegetation Management on Electric Utility Rights of way written by and published by . This book was released on 1997 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Florida Field Naturalist written by and published by . This book was released on 1988 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of Grassland Ecosystem Conditions in the Southwestern United States written by and published by . This book was released on 2004 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The American Naturalist written by and published by . This book was released on 1992 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of Grassland Ecosystem Conditions in the Southwestern United States without special title written by and published by . This book was released on 2004 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Naturalist 1986 Nos 976 979 written by and published by . This book was released on 1986 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: