2 edition of Species diversity and extinction found in the catalog.
Species diversity and extinction
Geraldine H. Tepper
Includes bibliographical references and index.
|Statement||Geraldine H. Tepper, editor|
|Series||Environmental science, engineering and technology|
|LC Classifications||QH541.15.S64 S627 2010|
|The Physical Object|
|Pagination||xiv, 448 p. :|
|Number of Pages||448|
|LC Control Number||2010284083|
This book examines the state of current understanding of species richness patterns and their explanations. As well as the present day world, it deals with diversification and extinction, in the conservation of species richness, and the difficulties of assessing how many species . Rise of the Extinction Deniers. Just like climate deniers, they’re out to obfuscate and debase the scientists and conservationists trying to save the world — and maybe get rid of a few pesky species in the process. Extinction Countdown. - by John R. Platt.
In Defense of Biodiversity: Why Protecting Species from Extinction Matters. book-length mistreatment. Pyron’s original opinion piece, so clear and unequivocal in its assertions, is a good place to unpack and disentangle accelerating misconceptions about the “desirability” of extinction that are starting to pop up like hallucinogenic. Species diversity is regarded as a measure of the diversity within population that incorporates both species richness and their evenness (Osawaru et al., ); it is influenced by species Author: Ian Swingland.
Extinction is the termination of a kind of organism or of a group of kinds (), usually a moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done. But if the upper estimate of species numbers is true - that there are million different species co-existing with us on our planet - then betw and , species are becoming extinct each year. *Experts actually call this natural extinction rate the background extinction rate. This simply means the rate of species extinctions that.
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: Species diversity and extinction book Diversity and Extinction (Envionmental Science, Engineering and Technology) (): Tepper, Geraldine H.: Books. Species diversity is an index that incorporates the number of species in an area and also their relative abundance.
This book presents and reviews important data on biodiversity and species extinction. Species diversity is marked by some interesting facts--such as larger areas have more species, and diversity is particularly high near the equator. Other factors to consider are what reduces diversity in ecologically productive places and across what scales of space and time diversity patterns hold/5(6).
The authors of this book present and review important data on biodiversity and species extinction\/span>\"@ en\/a> ; \u00A0\u00A0\u00A0\n schema:description\/a> \" Mexican threatened cacti: current status and strategies for their conservation \/ M.
Santos-D\u00EDaz, E. P\u00E9rez-Molphe, R. Ram\u00EDrez-Malag\u00F3n, H. N\u00FA\u00F1ez. Estimates of extinction rates based on habitat loss and species-area relationships have suggested that with about 90 percent habitat loss an expected 50 percent of species would become extinct.
Species-area estimates have led to species extinction rate calculations of about E/MSY and higher. This important book for scientists and nonscientists alike calls attention to a most urgent global problem: the rapidly accelerating loss of plant and animal species to increasing human population pressure and the demands of economic development.
Based on a major conference sponsored by the National Academy of Sciences and the Smithsonian Institution, Biodiversity creates a systematic. Evolution - Evolution - Diversity and extinction: The current diversity of life is the balance between the species that have arisen through time and those that have become extinct.
Paleontologists observe that organisms have continuously changed since the Cambrian Period, more than million years ago, from which abundant animal fossil remains are known. The current mass extinction differs from all others in being driven by a single species rather than a planetary or galactic physical process.
When the human race — Homo sapiens sapiens — migrated out of Africa to the Middle E years ago, to Europe and Austra years ago, to North Amer years ago, and to the. Start studying Biodiversity and Extinction. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Species diversity is defined as the number of species and abundance of each species that live in a particular location. The number of species that live in a certain location is called species. This review and synthesis of the patterns and theories of biodiversity provides a firm scientific basis for the study and management of the Earth's biosphere.
Beginning with a practical definition of biodiversity and an overview of diversity patterns on Earth, this book develops a conceptual framework that extends traditional theories of species diversity to explain both the general patterns.
The world must thrash out a new deal for nature in the next two years or humanity could be the first species to document our own extinction, warns the United Nation’s biodiversity chief.
Glossary; Strictly speaking, species diversity is the number of different species in a particular area (species richness) weighted by some measure of abundance such as number of individuals or r, it is common for conservation biologists to speak of species diversity even when they are actually referring to species richness.
Current Species Diversity. Despite considerable effort, knowledge of the species that inhabit the planet is limited. A recent estimate suggests that the eukaryote species for which science has names, about million species, account for less than 20 percent of the total number of eukaryote species present on the planet ( million species, by one estimate).
Importance of Biodiversity The Biodiversity Crisis. Biologists estimate that species extinctions are currently – times the normal, or background, rate seen previously in Earth’s history. The current high rates will cause a precipitous decline in the biodiversity of the planet in the next century or : Matthew R.
Fisher. Photo: IUCN The IUCN Red List of Threatened Species™ is the world's most comprehensive inventory of the global conservation status of plant and animal species. It uses a set of quantitative criteria to evaluate the extinction risk of thousands of species.
These criteria are relevant to most species and all regions of the world. The research paper "Extinction Risk from Climate Change" published in the journal Nature in January created front-page headlines around the world. The notion that climate change could drive more than a million species to extinction captured both the popular imagination and the attention of policy-makers, and provoked an unprecedented round of scientific critique.
As evolutionary ecologists race to understand biodiversity before it is too late, this book will help set the agenda for diversity research into the next century. Reviews ‘I will recommend Species Diversity in Space and Time to my graduate students to read because the good bits outweigh the by: Darwin, who reminded readers that “we need not marvel at extinction,” ended the Origin with a famous scene of contemplating the beauty and wonder of a tangled bank of earth where birds, worms, and bushes delicately coexisted.
5 Their diversity attested to, among other laws of nature, “the Extinction of less-improved forms.” 6 Darwin. Mass Extinction.
Mass extinctions are defined as “any substantial increase in the amount of extinction (lineage termination) suffered by more than one geographically wide-spread higher taxon during a relatively short interval of geologic time, resulting in an at least temporary decline in their standing diversity” (Sepkoski,p.
General Drivers of Extinction. Humans have caused or contributed to many plant and animal extinctions. Over the p years, humans have contributed to extinctions of large fauna on most continents of the world ().Over the past few thousand years, human colonists and their commensals (such as the Polynesian rat) have contributed to the extinction of thousands of bird species across Cited by: Every Taxon Is in Trouble.
AMPHIBIANS No group of animals has a higher rate of endangerment than amphibians. Scientists estimate that a third or more of all the roughly 6, known species of amphibians are at risk of extinction .The current amphibian extinction rate may range f to 45, times the background extinction rate .Frogs, toads, and salamanders are disappearing because.A beautifully illustrated book on endangered species and the opportunities to save them.
Earth has seen at least five great extinction periods, each wiping out up to 95 percent of all living species. They involved massive volcanic eruptions, disastrous meteor strikes and rapid climatic changes.
The main point of Endangered is that the sixth great extinction will be the result of humankind's.