Author: Robert Allen Allcorn IIIPublisher:
ISBN:
Category : Birds
Languages : en
Pages : 124
Book Description
Small Mammal and Grassland Bird Response to Wildfire on the Marfa Grasslands, Texas
Author: Robert Allen Allcorn IIIPublisher:
ISBN:
Category : Birds
Languages : en
Pages : 124
Book Description
Small Mammal and Vegetative Response to Wildfire in the Trans-Pecos, Texas
Author: John Thomas EdwardsPublisher:
ISBN:
Category : Grassland ecology
Languages : en
Pages : 226
Book Description
The Effects of Fire and Other Disturbances on Small Mammals and Their Predators
Author: Catherine H. ReamPublisher:
ISBN:
Category : Fire ecology
Languages : en
Pages : 260
Book Description
Wildland Fire in Ecosystems
Author: Wildland Fire in Ecosystems
Author: L. Jack LyonPublisher: CreateSpace
ISBN: 9781480198968
Category :
Languages : en
Pages : 90
Book Description
Fire regimes-that is, patterns of fire occurrence, size, uniformity, and severity-have been a major force shaping landscape patterns and influencing productivity throughout North America for thousands of years. Faunal communities have evolved in the context of particular fire regimes and show patterns of response to fire itself and to the changes in vegetation composition and structure that follow fire. Animals' immediate responses to fire are influenced by fire season, intensity, severity, rate of spread, uniformity, and size. Responses may include injury, mortality, immigration, or emigration. Animals with limited mobility, such as young, are more vulnerable to injury and mortality than mature animals. The habitat changes caused by fire influence faunal populations and communities much more profoundly than fire itself. Fires often cause a short-term increase in productivity, availability, or nutrient content of forage and browse. Fires generally favor raptors by reducing hiding cover and exposing prey. Small carnivores respond to fire effects on small mammal populations (either positive or negative). Large carnivores and omnivores are opportunistic species with large home ranges. Their populations change little in response to fire, but they tend to thrive in areas where their preferred prey is most plentiful-often in recent burns. In forests and woodlands, understory fires generally alter habitat structure less than mixed severity and stand-replacement fires, and their effects on animal populations are correspondingly less dramatic. Stand-replacing fires reduce habitat quality for species that require dense cover and improve it for species that prefer open sites. Population explosions of wood-boring insects, an important food source for insect predators and insect-eating birds, can be associated with fire-killed trees. Woodpecker populations generally increase after mixed-severity and stand-replacement fire if snags are available for nesting. Secondary cavity nesters, both birds and mammals, take advantage of the nest sites prepared by primary excavators. Many animal-fire studies depict a reorganization of animal communities in response to fire, with increases in some species accompanied by decreases in others. Like fire effects on populations, fire effects on communities are related to the amount of structural change in vegetation. Bird abundance and diversity are likely to be greatest early in succession. When shrub or tree canopy closure occurs, species that prefer open sites and habitat edges decline and species that prefer mature structures increase. Major changes to fire regimes alter landscape patterns, processes, and functional linkages. These changes can affect animal habitat and often produce major changes in the composition of faunal communities. In many Western ecosystems, landscape changes due to fire exclusion have changed fuel quantities and arrangement, increasing the likelihood of large or severe fires, or both. Where fire exclusion has changed species composition and fuel arrays over large areas, subsequent fires without prior fuel modification are unlikely to restore presettlement vegetation and habitat. In many desert and semi desert habitats where fire historically burned infrequently because of sparse fuels, invasion of weedy species has changed the vegetation so that burns occur much more frequently. Many animals in these ecosystems are poorly adapted to avoid fire or use resources in postfire communities. Collaboration among managers, researchers, and the public is needed to address tradeoffs in fire management, and fire management must be better integrated with overall land management objectives to address the potential interactions of fire with other disturbances such as grazing, flood, wind throw, and insect and fungus infestations.
Fire in North American Tallgrass Prairies
Author: Scott L. CollinsPublisher: University of Oklahoma Press
ISBN: 9780806123158
Category : Social Science
Languages : en
Pages : 198
Book Description
Based on papers presented at a 1987 symposium, "Fire in North American Grasslands," cosponsored by the Ecological Society of America and the Botanical Society of America, this book represents an important contribution to key unanswered questions concerning the role of fire in grassland ecosystems: How often did fires occur in the past? Were they primarily natural or caused by humans? At what time of year did grasslands normally burn? How should fire be used as a management tool? What constitutes a proper prescribed burning regime both with and without grazing?
Game Management
Author: Aldo LeopoldPublisher: Univ of Wisconsin Press
ISBN: 0299107736
Category : Nature
Languages : en
Pages : 519
Book Description
With this book, published more than a half-century ago, Aldo Leopold created the discipline of wildlife management. Although A Sand Country Almanac is doubtless Leopold’s most popular book, Game Management may well be his most important. In this book he revolutionized the field of conservation.
Texas Almanac 2014–2015
Author: Elizabeth Cruce AlvarezPublisher: Texas A&M University Press
ISBN: 1625110065
Category : Reference
Languages : en
Pages : 1603
Book Description
FEATURES OF THE TEXAS ALMANAC 2014–2015 • Sketches of eight historic ranches of Texas by Texana writer Mike Cox. • Article on the Texas art and artists by Houston businessman and art collector J.P. Bryan, who has amassed the world’s largest Texana collection. • Coverage of the 2012 elections, redistricting, and the 2012 Texas Olympic medalists. • An update on Major League Baseball in Texas. • Lists of sports champions — high school, college, and professional. MAJOR SECTIONS UPDATED FOR EACH EDITION • The Environment, including geology, plant life, wildlife, rivers, and lakes. • Weather highlights of the previous two years, plus a list of destructive weather dating from 1766. • Two-year Astronomical Calendar that shows moon phases, times of sunrise and sunset, moonrise and moonset, eclipses, and meteor showers. • Recreation, with details on state and national parks and forests, landmarks, and fairs and festivals. • Sports, including lists of high school football and basketball champions, professional sports teams, Texas Olympians, and Texas Sports Hall of Fame inductees. • Counties section, with detailed county maps and profiles for Texas’s 254 counties. • Population figures from the 2010 US Census and State Data Center estimates as of 2012. • Comprehensive list of Texas Cities and Towns. • Politics, Elections, and information on Federal, State, and Local Governments. • Culture and the Arts, including a list of civic and religious Holidays. • Religion census of 2010 by denomination and adherents; breakdown on metro areas and counties. • Health and Science, with charts of vital statistics. • Education, including a complete list of colleges and universities, and UIL results. • Business and Transportation, with an expanded section on Oil and Gas. • Agriculture, including data on production of crops, fruits, vegetables, livestock, and dairy. • Obituaries of notable Texans. • Pronunciation Guide to Texas town and county names.
The Desert Grassland
Author: Mitchel P. McClaranPublisher:
ISBN:
Category : Nature
Languages : en
Pages : 372
Book Description
"Leading experts in geography, biology, botany, zoology, and geoscience present new research on the desert grassland and review a vast amount of earlier work. They reveal that present-day grasses once grew in the ice age forests that existed in these areas before the climate dried and the trees vanished, and how the intensity and frequency of fire can influence the plant and animal species of the grassland.
Rangeland Health
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309048796
Category : Technology & Engineering
Languages : en
Pages : 201
Book Description
Rangelands comprise between 40 and 50 percent of all U.S. land and serve the nation both as productive areas for wildlife, recreational use, and livestock grazing and as watersheds. The health and management of rangelands have been matters for scientific inquiry and public debate since the 1880s, when reports of widespread range degradation and livestock losses led to the first attempts to inventory and classify rangelands. Scientists are now questioning the utility of current methods of rangeland classification and inventory, as well as the data available to determine whether rangelands are being degraded. These experts, who are using the same methods and data, have come to different conclusions. This book examines the scientific basis of methods used by federal agencies to inventory, classify, and monitor rangelands; it assesses the success of these methods; and it recommends improvements. The book's findings and recommendations are of interest to the public; scientists; ranchers; and local, state, and federal policymakers.