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The Effects Of Food Storage And Burrow Limitation On The Giant Kangaroo Rat
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Book Synopsis The Effects of Food Storage and Burrow Limitation on the Giant Kangaroo Rat by : Adam Young Falk
Download or read book The Effects of Food Storage and Burrow Limitation on the Giant Kangaroo Rat written by Adam Young Falk and published by . This book was released on 2015 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: California is home not only to many endangered species, but also to entire ecosystems that are threatened by human activities such as urbanization and irrigation. One such “hotspot” of species endangerment is in Central California’s San Joaquin Valley. One approach to conserving this threatened ecosystem is to focus efforts on a species that is instrumental to the ecosystem. The giant kangaroo rat (Dipodomys ingens) is an ecosystem engineer endemic to the San Joaquin Valley, and its burrowing and grazing behaviors have tremendous effects on the arid grassland habitat. In this thesis I focus on processes that either limit or regulate giant kangaroo rat populations: available food and burrow availability. I build a discrete-time stochastic population model to examine the effects of varying the number of available burrows within an isolated community. Using rainfall as a proxy for food production, I calculate numerical results over the burrow-rainfall parameter space and find distinct equilibria that correspond to scenarios of various combinations of burrow and available food limitation. In particular, my model suggests an optimal burrow-count threshold for a given average rainfall (food availability) value. Below this threshold, each individual increase in the number of burrows increases the steady-state population size. Once the threshold is crossed, not only do new burrows not have much effect on the overall population size, but there appears to be a greater likelihood of an extinction event.
Book Synopsis Life History of the Kangaroo Rat by : Charles Taylor Vorhies
Download or read book Life History of the Kangaroo Rat written by Charles Taylor Vorhies and published by Good Press. This book was released on 2019-12-10 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Life History of the Kangaroo Rat" is research on a kangaroo rat's morphology, looks, build, and habits. The book is written by the entomologist from the Agricultural Experiment Station, University of Arizona, Charles T. Vorhies, and the biologist from the Bureau of Biological Survey, U. S. Department of Agriculture. It shares details of how kangaroo rats build their homes, store their food, their natural enemies, and many more.
Book Synopsis Endangered and Sensitive Species of the San Joaquin Valley, California by : Daniel F. Williams
Download or read book Endangered and Sensitive Species of the San Joaquin Valley, California written by Daniel F. Williams and published by . This book was released on 1992 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Prevention and Control of Wildlife Damage by : Scott E. Hygnstrom
Download or read book Prevention and Control of Wildlife Damage written by Scott E. Hygnstrom and published by DIANE Publishing Inc.. This book was released on 2010-11 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference on vertebrate species that can cause economic damage or become nuisance pests. Reviews all vertebrate species that come into conflict with human interests in North America. Includes agricultural, commercial, industrial, and residential pest problems and recommends solutions; emphasizes prevention; outlines and explains all currently registered and recommended control methods and materials. Contains dozens of chapters written by various authors. Figures.
Book Synopsis Current Advances in Ecological & Environmental Sciences by :
Download or read book Current Advances in Ecological & Environmental Sciences written by and published by . This book was released on 1992 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sale of Naval Petroleum Reserve No.1(Elk Hills), Kern County by :
Download or read book Sale of Naval Petroleum Reserve No.1(Elk Hills), Kern County written by and published by . This book was released on 1997 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis North American Rodents by : David J. Hafner
Download or read book North American Rodents written by David J. Hafner and published by IUCN. This book was released on 1998 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive treatment of North American rodents of conservation concern. This action plan summarizes the rodent fauna of North America and provides available information on every rodent taxon that has been considered to be of conservation concern by state, provincial and private conservation agencies and regional experts. It is hoped that the survey provided in this action plan will serve as a common ground for all these parties in drawing up conservation strategies for rodents.
Author :Charles J. Krebs Publisher :Benjamin-Cummings Publishing Company ISBN 13 :9780321068798 Total Pages :695 pages Book Rating :4.0/5 (687 download)
Download or read book Ecology written by Charles J. Krebs and published by Benjamin-Cummings Publishing Company. This book was released on 2001 with total page 695 pages. Available in PDF, EPUB and Kindle. Book excerpt: This best-selling majors ecology book continues to present ecology as a series of problems for readers to critically analyze. No other text presents analytical, quantitative, and statistical ecological information in an equally accessible style. Reflecting the way ecologists actually practice, the book emphasizes the role of experiments in testing ecological ideas and discusses many contemporary and controversial problems related to distribution and abundance. Throughout the book, Krebs thoroughly explains the application of mathematical concepts in ecology while reinforcing these concepts with research references, examples, and interesting end-of-chapter review questions. Thoroughly updated with new examples and references, the book now features a new full-color design and is accompanied by an art CD-ROM for instructors. The field package also includes The Ecology Action Guide, a guide that encourages readers to be environmentally responsible citizens, and a subscription to The Ecology Place (www.ecologyplace.com), a web site and CD-ROM that enables users to become virtual field ecologists by performing experiments such as estimating the number of mice on an imaginary island or restoring prairie land in Iowa. For college instructors and students.
Book Synopsis Nutrition and Physical Degeneration: A Comparison of Primitive and Modern Diets and Their Effects by : Weston A. Price
Download or read book Nutrition and Physical Degeneration: A Comparison of Primitive and Modern Diets and Their Effects written by Weston A. Price and published by EnCognitive.com. This book was released on 2016-01-08 with total page 1740 pages. Available in PDF, EPUB and Kindle. Book excerpt: The answers for perfect teeth, unblemished skin, and pristine hair are in this book. Dr. Price was 75 years ahead of his time. In this book, he demonstrates that isolated groups of people living in accordance with Nature have the best overall physical and mental health. Diseases inflicting “modern” humans are unheard of in most of these study groups. Dr. Weston Andrew Price, DDS, was called the “Isaac Newton of Nutrition” and the “Darwin of Nutrition.” This edition of Dr. Price’s classic is modernized with the epub format. It is easier to read on smartphones and tablets. It also includes updated statistics and additional images. Dr. Price shows that illness, disease, behavior, criminality, anemia, voice, and even cheek-line, are all within the domain of Nutrition. “If civilized man is to survive, he must incorporate the fundamentals of primitive nutritional wisdom into his modern lifestyle.” —Dr. Weston A. Price, DDS
Download or read book Fossil Energy Update written by and published by . This book was released on 1983 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turning the Tide written by C. R. Veitch and published by IUCN. This book was released on 2002 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes papers and abstracts dealing with eradication of invasive species in Alaska, Australia, Baker Island, California, Christmas Island, Enderby and Rose Islands, Galapagos Islands, Hawaii, Howland Island, Japan, Jarvis Island, Laysan Island, Lord Howe Island, Mauritius, Mexico, Nauru, New Zealand, Northern Ireland, Northern Mariana Islands, Saint-Paul Island, Seychelles, West Indies.
Book Synopsis Managing Cover Crops Profitably (3rd Ed. ) by : Andy Clark
Download or read book Managing Cover Crops Profitably (3rd Ed. ) written by Andy Clark and published by DIANE Publishing. This book was released on 2008-07 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.
Download or read book The Potato Crop written by Hugo Campos and published by Springer Nature. This book was released on 2019-12-03 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY 4.0 license. This book provides a fresh, updated and science-based perspective on the current status and prospects of the diverse array of topics related to the potato, and was written by distinguished scientists with hands-on global experience in research aspects related to potato. The potato is the third most important global food crop in terms of consumption. Being the only vegetatively propagated species among the world’s main five staple crops creates both issues and opportunities for the potato: on the one hand, this constrains the speed of its geographic expansion and its options for international commercialization and distribution when compared with commodity crops such as maize, wheat or rice. On the other, it provides an effective insulation against speculation and unforeseen spikes in commodity prices, since the potato does not represent a good traded on global markets. These two factors highlight the underappreciated and underrated role of the potato as a dependable nutrition security crop, one that can mitigate turmoil in world food supply and demand and political instability in some developing countries. Increasingly, the global role of the potato has expanded from a profitable crop in developing countries to a crop providing income and nutrition security in developing ones. This book will appeal to academics and students of crop sciences, but also policy makers and other stakeholders involved in the potato and its contribution to humankind’s food security.
Book Synopsis Long-Term Studies of Vertebrate Communities by : Martin L. Cody
Download or read book Long-Term Studies of Vertebrate Communities written by Martin L. Cody and published by Academic Press. This book was released on 1996-10-24 with total page 621 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book synthesizes the ongoing long-term community ecology studies of fish, amphibians, reptiles, birds, and mammals. The studies have been conducted from deserts to rainforests as well as in terrestrial, freshwater, and marine habitats and provide valuable insight that can be obtained only through persistent, diligent, and year-after-year investigation. Long-Term Studies of Vertebrate Communities is ideal for faculty, researchers, graduate students, and undergraduates in vertebrate biology, ecology, and evolutionary biology, including ecology, natural history, and systematics. Provides unique perspectives of community stability and variation Details the influence of natural and other perturbations on community structure Includes synopses by well-known authors Presents results from a broad range of vertebrate taxa Studies were conducted at different latitudes and in different habitats
Download or read book Mammals written by Thomas Stainforth Kemp and published by Oxford University Press. This book was released on 2017 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relative newcomers within the story of evolution, mammals are hugely successful and have colonized land, water, and air. Tom Kemp discusses the great diversity of mammalian species, and looks at how their very disparate characteristics, physiologies, and behaviours are all largely driven by one uniting factor: endothermy, or warm-bloodedness.
Book Synopsis Principles of Animal Locomotion by : R. McNeill Alexander
Download or read book Principles of Animal Locomotion written by R. McNeill Alexander and published by Princeton University Press. This book was released on 2006-03-19 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: How can geckoes walk on the ceiling and basilisk lizards run over water? What are the aerodynamic effects that enable small insects to fly? What are the relative merits of squids' jet-propelled swimming and fishes' tail-powered swimming? Why do horses change gait as they increase speed? What determines our own vertical leap? Recent technical advances have greatly increased researchers' ability to answer these questions with certainty and in detail. This text provides an up-to-date overview of how animals run, walk, jump, crawl, swim, soar, hover, and fly. Excluding only the tiny creatures that use cilia, it covers all animals that power their movements with muscle--from roundworms to whales, clams to elephants, and gnats to albatrosses. The introduction sets out the general rules governing all modes of animal locomotion and considers the performance criteria--such as speed, endurance, and economy--that have shaped their selection. It introduces energetics and optimality as basic principles. The text then tackles each of the major modes by which animals move on land, in water, and through air. It explains the mechanisms involved and the physical and biological forces shaping those mechanisms, paying particular attention to energy costs. Focusing on general principles but extensively discussing a wide variety of individual cases, this is a superb synthesis of current knowledge about animal locomotion. It will be enormously useful to advanced undergraduates, graduate students, and a range of professional biologists, physicists, and engineers.
Download or read book Edible Insects written by Arnold van Huis and published by Bright Sparks. This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edible insects have always been a part of human diets, but in some societies there remains a degree of disdain and disgust for their consumption. Although the majority of consumed insects are gathered in forest habitats, mass-rearing systems are being developed in many countries. Insects offer a significant opportunity to merge traditional knowledge and modern science to improve human food security worldwide. This publication describes the contribution of insects to food security and examines future prospects for raising insects at a commercial scale to improve food and feed production, diversify diets, and support livelihoods in both developing and developed countries. It shows the many traditional and potential new uses of insects for direct human consumption and the opportunities for and constraints to farming them for food and feed. It examines the body of research on issues such as insect nutrition and food safety, the use of insects as animal feed, and the processing and preservation of insects and their products. It highlights the need to develop a regulatory framework to govern the use of insects for food security. And it presents case studies and examples from around the world. Edible insects are a promising alternative to the conventional production of meat, either for direct human consumption or for indirect use as feedstock. To fully realise this potential, much work needs to be done by a wide range of stakeholders. This publication will boost awareness of the many valuable roles that insects play in sustaining nature and human life, and it will stimulate debate on the expansion of the use of insects as food and feed.
