Body Weights of 686 Species of North American Birds PDF Download

Author: John Barnard Dunning
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 38

View

Book Description

Author: John Barnard Dunning
Publisher:
ISBN: 9780997812633
Category : Birds
Languages : en
Pages : 117

View

Book Description

Author: John B. Dunning Jr.
Publisher: CRC Press
ISBN: 1420064452
Category : Nature
Languages : en
Pages : 668

View

Book Description
See what's new in the Second Edition: Number of species included is increased from 6300 to over 8700, about 85% of the world's birds Better data for many of the species included in the first edition- an exhaustive compilation of new data publis

Author: Cin-Ty Lee
Publisher: Princeton University Press
ISBN: 0691240620
Category : Nature
Languages : en
Pages : 168

View

Book Description
A richly illustrated, portable field guide to flycatcher identification The identification of Empidonax flycatchers and pewees can be a daunting challenge for even the most seasoned birder. Field Guide to North American Flycatchers takes bird identification to an entirely new level by training readers to observe subtle differences in structure, color patterns, and vocalizations before delving into the finer details of a particular species. Because the plumages of flycatchers are so similar, this one-of-a-kind guide uses illustrations that highlight slight variances among species that photos often miss. One of the last frontiers of bird identification is now accessible to everyone—once one knows what to look for. Uses a holistic approach that makes flycatcher identification possible even for beginners Features a wealth of beautiful illustrations that depict every species in North America Shows how to observe subtle differences in structure, plumage contrasts, and vocalizations, which together create a distinctive overall impression of the bird Includes detailed audio spectrograms and seasonal distribution maps for each species Shares invaluable tips for successful identification in all kinds of field settings Its compact size and field-friendly layout make it the ideal travel companion for any birder

Author: Paul Johnsgard
Publisher: Lulu.com
ISBN: 1609621174
Category : Nature
Languages : en
Pages : 134

View

Book Description
This book documents the biology of six species of New World quails that are native to North America north of Mexico (mountain, scaled, Gambel's, California, and Montezuma quails, and the northern bobwhite), three introduced Old World partridges (chukar, Himalayan snowcock, and gray partridge), and the introduced common (ring-necked) pheasant. Collectively, quails, partridges, and pheasants range throughout all of the continental United States and the Canadian provinces. Two of the species, the northern bobwhite and ring-necked pheasant, are the most economically important of all North American upland game birds. All of the species are hunted extensively for sport and are highly popular with naturalists, birders, and other outdoor enthusiasts.

Author: Paul Johnsgard
Publisher: Lulu.com
ISBN: 1609620879
Category : Nature
Languages : en
Pages : 177

View

Book Description
The ten currently recognized species of grouse in North America have played an important role in America's history, from the famous but ill-fated heath hen, a primary source of meat for the earliest New England immigrants, to the ruffed grouse, currently one of the most abundant and soughtafter upland game birds in more than 40 states and provinces. This book summarizes the ecology, reproductive biology, and social behavior of all ten of the extant North American grouse species. It also describes the current status of grouse populations, some of which are perilously close to extinction. The social behavior of grouse is of special biological interest because among these ten species there is a complete mating system spectrum, from seasonally monogamous pair-bonding to highly promiscuous mating patterns. The latter group illustrates the strong structural and behavioral effects of sexual selection resulting from nonmonogamous mating. These influences reach a peak in the development by some grouse species of engaging in mating "leks," arena-like competitions performed by males while attempting to attract fertile females, and also provide opportunities for females to select optimum mating partners. These sexual competitions also promote strong differences evolving in sexual signaling behaviors ("displays") among closely related species. Nevertheless, a relatively high incidence of mating errors and resulting hybridization often occurs in spite of these marked behavioral differences. In addition to a text of 101,000 words, the book includes 16 range maps, 37 line drawings, and 38 photographs by the author, as well as nearly 1,400 literature citations.

Author: Kevin J. Gaston
Publisher: Oxford University Press, USA
ISBN: 9780198526414
Category : Nature
Languages : en
Pages : 280

View

Book Description
A synthesis of present understanding of the structure of the geographic ranges of species, which is a core issue in ecology and biogeography with implications for many of the environmental issues presently facing humankind.

Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 610

View

Book Description

Author:
Publisher:
ISBN:
Category : Wildlife conservation
Languages : en
Pages : 1028

View

Book Description

Author: Glenn W. Suter II
Publisher: CRC Press
ISBN: 9781420056693
Category : Technology & Engineering
Languages : en
Pages : 466

View

Book Description
Love Canal. Exxon Valdez. Times Beach. Sacramento River Spill. Amoco Cadiz. Seveso. Every area of the world has been affected by improper waste disposal and chemical spills. Common hazardous waste sites include abandoned warehouses, manufacturing facilities, processing plants, and landfills. These sites poison the land and contaminate groundwater and drinking water. A sequel to the bestselling Ecological Risk Assessment, Ecological Risk Assessment for Contaminated Sites focuses on how to perform ecological risk assessments for Superfund sites and locations contaminated by improper disposal of wastes, or chemical spills. It integrates the authors' extensive experience in assessing ecological risks at U.S. government sites with techniques and examples from assessments performed by others. Conducting an ecological risk assessment on a contaminated site provides the information needed to make decisions concerning site remediation. The first rule of good risk assessment is "don't do anything stupid". With the practical preparation you get from Ecological Risk Assessment for Contaminated Sites you won't.