Download or read book Demographics of the Golden cheeked Warbler dendroica Chrysoparia on Fort Hood Texas written by Leslie A. Jette and published by DIANE Publishing. This book was released on 1998 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Demographics of the Golden cheeked Warbler Dendroica Chrysoparia on Fort Hood Texas written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Golden-cheeked Warbler (Dendroica chrysoparia) is a federally endangered migratory passerine that has its breeding range contained in the central Texas area that includes Fort Hood. Its listing as endangered in 1991 was a result of the rapid degradation and increasing fragmentation of habitat, causing a decline in their population. To assist in conservation and recovery of the Golden-cheeked Warbler and comply with the Endangered Species Act, environmental managers need information on the demographic parameters of the population on Fort Hood. Researchers surveyed and documented the Golden-checked Warbler on Fort Hood, Texas between 1991 and 1996. The population remained relatively stable, with a slight decrease in 1996. The average return rate for males banded as adults was 45.5%; for males banded as juveniles the average was 16.9%. Dispersal distances for males banded as adults averaged 223 m. Dispersal distances for males banded as juveniles were significantly greater, with an average of 4,040 m. Densities of territorial males remained relatively stable between 1992 and 1996, with a peak density of 28 males per 100 ha (average of 18 males per 100 ha). Productivity of males within an intensive study area averaged 2.0 young per mated male.
Download or read book Hays County Regional Habitat Conservation Plan written by and published by . This book was released on 2010 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landscape Simulation Modeling written by Robert Costanza and published by Springer Science & Business Media. This book was released on 2006-06-02 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world consists of many complex systems, ranging from our own bodies to ecosystems to economic systems. Despite their diversity, complex systems have many structural and functional features in common that can be effectively si- lated using powerful, user-friendly software. As a result, virtually anyone can - plore the nature of complex systems and their dynamical behavior under a range of assumptions and conditions. This ability to model dynamic systems is already having a powerful influence on teaching and studying complexity. The books in this series will promote this revolution in “systems thinking” by integrating computational skills of numeracy and techniques of dynamic mod- ing into a variety of disciplines. The unifying theme across the series will be the power and simplicity of the model-building process, and all books are designed to engage the reader in developing their own models for exploration of the dyn- ics of systems that are of interest to them. Modeling Dynamic Systems does not endorse any particular modeling paradigm or software. Rather, the volumes in the series will emphasize simplicity of lea- ing, expressive power, and the speed of execution as priorities that will facilitate deeper system understanding.
Download or read book Comal County Regional Habitat Conservation Plan written by and published by . This book was released on 2010 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Avian Migrant written by John H. Rappole and published by Columbia University Press. This book was released on 2013-06-11 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of migration, regardless of the distance involved, is to exploit two or more environments suitable for survival or reproduction over time, usually on a seasonal basis. Yet individual organisms can practice the phenomenon differently, and birds deploy unique patterns of movement over particular segments of time. Incorporating the latest research on bird migration, this concise, critical assessment offers contemporary readers a firm grasp of what defines an avian migrant, how the organism came to be, what is known about its behavior, and how we can resolve its enduring mysteries. John H. Rappole's sophisticated survey of field data clarifies key ecological, biological, physiological, navigational, and evolutionary concerns. He begins with the very first migrants, who traded a home environment of greater stability for one of greater seasonality, and uses the structure of the annual cycle to examine the difference between migratory birds and their resident counterparts. He ultimately connects these differences to evolutionary milestones that have shaped a migrant lifestyle through natural selection. Rather than catalogue and describe various aspects of bird migration, Rappole considers how the avian migrant fits within a larger ecological frame, enabling a richer understanding of the phenomenon and its critical role in sustaining a hospitable and productive environment. Rappole concludes with a focus on population biology and conservation across time periods, considering the link between bird migration and the spread of disease among birds and humans, and the effects of global warming on migrant breeding ranges, reaction norms, and macroecology.
Download or read book Fort Polk LA to Fort Hood Realignment of the 5th Infantry Division mechanized written by and published by . This book was released on 1992 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1999-07 with total page 1154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Endangered Species Update written by and published by . This book was released on 2007 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Williamson County Regional Habitat Conservation Plan written by and published by . This book was released on 2008 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Endangered Species Bulletin written by and published by . This book was released on 2006 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Threat Assessment and Their Application to Forest and Rangeland Management written by John M. Pye and published by . This book was released on 2010 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: In July 2006, more than 170 researchers and managers from the United States, Canada, and Mexico convened in Boulder, Colorado, to discuss the state of the science in environmental threat assessment. This two-volume general technical report compiles peer-reviewed papers that were among those presented during the 3-day conference. Papers are organized by four broad topical sections--Land, Air and Water, Fire, and Pests/Biota--and are divided into syntheses and case studies. Land topics include discussions of forest land conversion and soil quality as well as investigations of species' responses to climate change. Air and water topics include discussions of forest vulnerability to severe weather and storm damage modeling. Fire topics include discussions of wildland arson and wildfire risk management as well as how people precieve wildfire risk and uncertainty. Pests/biota topics include discussions of risk mapping and probabilistic risk assessments as well as investigations of individual threats, including the southern pine beetle and Phytophora alni. Ultimately, this publication will foster exchange and collaboration between those who develop knowledge and tools for threat assessment and those who are responsible for managing forests and rangelands.
Download or read book Wild Earth written by and published by . This book was released on 2000 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Military Geosciences in the Twenty First Century written by Russell S. Harmon and published by Geological Society of America. This book was released on 2014-08-22 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Eighteen chapters address the complex yet critical aspects of the role of geosciences in military undertakings. The chapters cover a wide range of expertise drawn from the broad area of geology, geomorphology, geography, geophysics, engineering geology, hydrogeology, cartography, environmental science, remote sensing, soil science, geoinformatics, and related disciplines that reflect the multidisciplinary nature of military geology"--
Download or read book Special Report written by and published by . This book was released on 1982 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Aircraft Noise on Pronghorn and Other Species written by Paul R. Krausman and published by . This book was released on 1998 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology and Management of Cowbirds and Their Hosts written by James N. M. Smith and published by University of Texas Press. This book was released on 2014-09-05 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past two centuries, cowbirds have increased in numbers and extended their range across North America, while many of the native songbird species whose nests they parasitize to raise their young have declined. This timely book collects forty essays by most of the principal authorities on the biology and management of cowbirds. The book's goals are to explore the biology of cowbirds, the threats they pose to host species and populations, and the management programs that are being undertaken to minimize these threats. The book is organized into five sections, each with an extended editors' introduction that places the contributions in a broad, up-to-date setting. The sections cover: The changing abundance of cowbirds and the ways in which their numbers can be estimated. Host choice by cowbirds, the negative effects of cowbirds on particular host species, and the daily patterns of cowbird behavior. Behavioral interactions between cowbirds and specific host species. Patterns of cowbird abundance and host use across varying landscapes. Management programs designed to control cowbirds and protect threatened songbirds.
