Author: Graham Upton
Publisher: Pelagic Publishing Ltd
ISBN: 1784272337
Category : Science
Languages : en
Pages : 278
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Book Description
Measuring the abundance of individuals and the diversity of species are core components of most ecological research projects and conservation monitoring. This book brings together in one place, for the first time, the methods used to estimate the abundance of individuals in nature. The statistical basis of each method is detailed along with practical considerations for survey design and data collection. Methods are illustrated using data ranging from Alaskan shrubs to Yellowstone grizzly bears, not forgetting Costa Rican ants and Prince Edward Island lobsters. Where necessary, example code for use with the open source software R is supplied. When appropriate, reference is made to other widely used programs. After opening with a brief synopsis of relevant statistical methods, the first section deals with the abundance of stationary items such as trees, shrubs, coral, etc. Following a discussion of the use of quadrats and transects in the contexts of forestry sampling and the assessment of plant cover, there are chapters addressing line-intercept sampling, the use of nearest-neighbour distances, and variable sized plots. The second section deals with individuals that move, such as birds, mammals, reptiles, fish, etc. Approaches discussed include double-observer sampling, removal sampling, capture-recapture methods and distance sampling. The final section deals with the measurement of species richness; species diversity; species-abundance distributions; and other aspects of diversity such as evenness, similarity, turnover and rarity. This is an essential reference for anyone involved in advanced undergraduate or postgraduate ecological research and teaching, or those planning and carrying out data analysis as part of conservation survey and monitoring programmes.
Author: David Heath
Publisher: CRC Press
ISBN: 9780203499245
Category : Mathematics
Languages : en
Pages : 390
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Book Description
This illustrated textbook for biologists provides a refreshingly clear and authoritative introduction to the key ideas of sampling, experimental design, and statistical analysis. The author presents statistical concepts through common sense, non-mathematical explanations and diagrams. These are followed by the relevant formulae and illustrated by w
Author: Anne E. Magurran
Publisher: John Wiley & Sons
ISBN: 1118687922
Category : Science
Languages : en
Pages : 274
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Book Description
This accessible and timely book provides a comprehensive overview of how to measure biodiversity. The book highlights new developments, including innovative approaches to measuring taxonomic distinctness and estimating species richness, and evaluates these alongside traditional methods such as species abundance distributions, and diversity and evenness statistics. Helps the reader quantify and interpret patterns of ecological diversity, focusing on the measurement and estimation of species richness and abundance. Explores the concept of ecological diversity, bringing new perspectives to a field beset by contradictory views and advice. Discussion spans issues such as the meaning of community in the context of ecological diversity, scales of diversity and distribution of diversity among taxa Highlights advances in measurement paying particular attention to new techniques such as species richness estimation, application of measures of diversity to conservation and environmental management and addressing sampling issues Includes worked examples of key methods in helping people to understand the techniques and use available computer packages more effectively
Author: Marian L. Tupy
Publisher: Cato Institute
ISBN: 1952223407
Category : Business & Economics
Languages : en
Pages : 575
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Book Description
Generations of people have been taught that population growth makes resources scarcer. In 2021, for example, one widely publicized report argued that “The world's rapidly growing population is consuming the planet's natural resources at an alarming rate . . . the world currently needs 1.6 Earths to satisfy the demand for natural resources ... [a figure that] could rise to 2 planets by 2030.” But is that true? After analyzing the prices of hundreds of commodities, goods, and services spanning two centuries, Marian Tupy and Gale Pooley found that resources became more abundant as the population grew. That was especially true when they looked at “time prices,” which represent the length of time that people must work to buy something. To their surprise, the authors also found that resource abundance increased faster than the population―a relationship that they call superabundance. On average, every additional human being created more value than he or she consumed. This relationship between population growth and abundance is deeply counterintuitive, yet it is true. Why? More people produce more ideas, which lead to more inventions. People then test those inventions in the marketplace to separate the useful from the useless. At the end of that process of discovery, people are left with innovations that overcome shortages, spur economic growth, and raise standards of living. But large populations are not enough to sustain superabundance―just think of the poverty in China and India before their respective economic reforms. To innovate, people must be allowed to think, speak, publish, associate, and disagree. They must be allowed to save, invest, trade, and profit. In a word, they must be free.
Author: Diane Alford
Publisher: Pascal Press
ISBN: 1740200896
Category : Biology
Languages : en
Pages : 132
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Book Description
Contains a comprehensive summary of the entire course, activities, glossary of terms and a list of websites.
Author: Philippe Crane
Publisher: Springer Science & Business Media
ISBN: 3540491694
Category : Science
Languages : en
Pages : 438
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Book Description
This is the first volume of a series on a regular up-to-date coverage of important developments in astronomy and astrophysics jointly published by ESO and Springer-Verlag. Here the reader finds a thorough review of the abundances of the elements up to Boron. Special emphasis is laid on primordial abundances of interest to cosmologists in particular, and on stellar production or destruction respectively. The articles written for researchers and graduate students cover theory and most recent data from telescope observations.
Author: K.J. Gaston
Publisher: Springer Science & Business Media
ISBN: 0412475103
Category : Nature
Languages : en
Pages : 220
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Book Description
This book focuses on rarity, its spatial and temporal dynamics, causes, and interaction with conservation. Although they can be viewed from many different perspectives, rare species are of particular concern to conservationists because they tend to have a greater probability of extinction. This book therefore identifies a number of important issues both heuristic and practical.
Author: Andrew B. Carey
Publisher:
ISBN:
Category : Rodent populations
Languages : en
Pages : 32
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Book Description
Author: National Radio Astronomy Observatory (U.S.)
Publisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 568
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Book Description
Author: Lawrence J. Eilers
Publisher: University of Iowa Press
ISBN: 158729057X
Category : Nature
Languages : en
Pages : 320
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Book Description
Anyone who works with the vascular plants of Iowa—researchers, conservationists, teachers, agricultural specialists, horticulturists, gardeners, and so on—and those who are simply interested in knowing more about the state's plants have long felt a need for a comprehensive flora of Iowa. This meticulously researched volume is a giant first step toward such a flora. This book consists of an extended essay on the natural history of the vascular plants of Iowa, a discussion of their origins, a description of the state's natural regions, and a painstakingly annotated checklist of Iowa vascular plants. The data, which apply to over 150 years, took more than 15 years to collect. All known vascular plants that grow and persist in Iowa without cultivation are included in the checklist. These are native plants, primarily, but a large number of introduced species have become established throughout the state. Also included are Iowa's major crop plants and some of its common garden plants. The lengthy checklist provides an accurate and up-to-date listing of species names and common names, synonyms, distribution, habitat, abundance, and origin; county names are given for very rare species, and the most complete information has been provided for all rare plants and troublesome species. The wealth of information is this well-organized, practical volume—which describes more than two thousand species from Adiantum pedatum, the northern maidenhair fern of moist woods and rocky slopes, to Zannichellia palustris, the horned pondweed of shallow marshes and coldwater streams—makes it possible to identify Iowa plants correctly. All midwesterners will want to own a copy of The Vascular Plants of Iowa.
