Results 291 to 300 of about 291,668 (342)
The effects of habitat fragmentation on extinction risk: Mechanisms and synthesis
, 2006 Tormod V. Burkey, David H. Reed
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Brazilian killifishes risk extinction
Science, 2018The annual killifishes are a diversified group of small fish in Africa and South America ([ 1 ][1]). Annual killifish are unique in their ability to survive in ephemeral pools; they have short, seasonal life cycles, laying eggs that lie dormant in the soil once the pools have evaporated and ...
Matheus Vieira, Volcan +1 more
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2022
This chapter evaluates the problem of extinction. Many species are currently on the brink of extinction due to increasing human activity; this is well documented in the well-studied groups of birds, mammals, and amphibians. Island species have had a higher rate of extinction than mainland species, due to small population sizes and less previous ...
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This chapter evaluates the problem of extinction. Many species are currently on the brink of extinction due to increasing human activity; this is well documented in the well-studied groups of birds, mammals, and amphibians. Island species have had a higher rate of extinction than mainland species, due to small population sizes and less previous ...
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Trends in Ecology & Evolution, 1999
Jean Baptiste de Lamarck and Thomas Huxley, two of the foremost thinkers of the 18th and 19th centuries, believed that humanity could not cause the extinction of marine species. Their opinions reflected a widespread belief that the seas were an inexhaustible source of food and wealth of which people could barely use a fraction.
, Roberts, , Hawkins
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Jean Baptiste de Lamarck and Thomas Huxley, two of the foremost thinkers of the 18th and 19th centuries, believed that humanity could not cause the extinction of marine species. Their opinions reflected a widespread belief that the seas were an inexhaustible source of food and wealth of which people could barely use a fraction.
, Roberts, , Hawkins
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Extinction Risk and Conservation Priorities
Science, 2006Threatened species lists based on extinction risk are becoming increasingly influential for setting conservation priorities at regional, national, and local levels. Risk assessment, however, is a scientific endeavor, whereas priority setting is a societal process, and they should not be ...
Rebecca M, Miller +10 more
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Population Variability and Extinction Risk
Conservation Biology, 2000Abstract: Population models generally predict increased extinction risk (ER) with increased population variability ( PV ), yet some empirical tests have provided contradictory findings. We resolve this conflict by attributing negative measured relationships to a statistical artifact that arises because PV ...
John A, Vucetich +3 more
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Staying Alive: Extinction Risk: Introduction to Extinction and Extinction Bias
2018Data driven curriculum module from Dryad Digital ...
Price, Samantha +3 more
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Metapopulation extinction risk: Dispersal’s duplicity
Theoretical Population Biology, 2009Metapopulation extinction risk is the probability that all local populations are simultaneously extinct during a fixed time frame. Dispersal may reduce a metapopulation's extinction risk by raising its average per-capita growth rate. By contrast, dispersal may raise a metapopulation's extinction risk by reducing its average population density.
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Inferring extinction risks from sighting records
Journal of Theoretical Biology, 2013Estimating the probability that a species is extinct based on historical sighting records is important when deciding how much effort and money to invest in conservation policies. The framework we offer is more general than others in the literature to date.
Thompson, C. J. +4 more
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SSRN Electronic Journal, 2012
This is an early portion of a forthcoming work of practical moral philosophy, one arguing that humanity, as a species, should want to survive. This particular piece argues that neo-classical economics places an emphasis on short-term gain over precaution and in doing so places lives of individual humans — and even the species itself — at risk.
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This is an early portion of a forthcoming work of practical moral philosophy, one arguing that humanity, as a species, should want to survive. This particular piece argues that neo-classical economics places an emphasis on short-term gain over precaution and in doing so places lives of individual humans — and even the species itself — at risk.
openaire +1 more source