Results 341 to 350 of about 1,099,013 (383)

Extinction

BioEssays, 2000
In the life of any species, extinction is the final evolutionary process. It is a common one at present, as the world is entering a major extinction crisis. The pattern of extinction and threat is very non-random, with some taxa being more vulnerable than others.
A, Purvis, K E, Jones, G M, Mace
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Experimental Determination of the Extinction Coefficient of CdTe, CdSe, and CdS Nanocrystals

, 2003
The extinction coefficient per mole of nanocrystals at the first exitonic absorption peak, e, for high-quality CdTe, CdSe, and CdS nanocrystals was found to be strongly dependent on the size of the nanocrystals, between a square and a cubic dependence ...
W. Yu, L. Qu, Wenzhuo Guo, Xiaogang Peng
semanticscholar   +1 more source

Extinction of experience: the loss of human–nature interactions

, 2016
Increasingly, people are becoming less likely to have direct contact with nature (natural environments and their associated wildlife) in their everyday lives. Over 20 years ago, Robert M Pyle termed this ongoing alienation the “extinction of experience”,
M. Soga, K. Gaston
semanticscholar   +1 more source

Extinct or Possibly Extinct?

Science, 2006
Lists of extinct species often act as “wake-up calls” and are based on the length of time since the last sighting, resulting in numerous species having been prematurely classified as being extinct only to be rediscovered ([1][1]). This not only provides ammunition for environmental sceptics (D.
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Extinction by hybridization and introgression

, 1996
▪ Abstract Nonindigenous species can bring about a form of extinction of native flora and fauna by hybridization and introgression either through purposeful introduction by humans or through habitat modification, bringing previously isolated species into
J. Rhymer, D. Simberloff
semanticscholar   +1 more source

Extinction by infection

Trends in Ecology & Evolution, 1999
In a recent news & comment article, Cleaveland et al.1xCleaveland, S., Thirgood, S., and Laurenson, K. Trends Ecol. Evol. 1999; 14: 83–84Abstract | Full Text | Full Text PDF | PubMed | Scopus (8)See all References1 raise an interesting issue in addition to furthering the debate on pathogens as agents of biocontrol.
Andrew A. Cunningham, Peter Daszak
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Determination of integrated molar extinction coefficients for infrared absorption bands of pyridine adsorbed on solid acid catalysts

, 1993
Integrated molar extinction coefficients were determined for infrared absorption bands of pyridine adsorbed on acid sites in Si/Al-based catalysts. The infrared spectra of five zeolites and two amorphous silica-aluminas were recorded during quantitative ...
C. A. Emeis
semanticscholar   +1 more source

Staying Alive: Extinction Risk: Introduction to Extinction and Extinction Bias

2018
Data driven curriculum module from Dryad Digital ...
Samantha A. Price, Anna Thanukos, Samantha Swauger, Peggy Schaeffer   +3 more
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ESTIMATING SITE OCCUPANCY, COLONIZATION, AND LOCAL EXTINCTION WHEN A SPECIES IS DETECTED IMPERFECTLY

, 2003
Few species are likely to be so evident that they will always be detected when present. Failing to allow for the possibility that a target species was present, but undetected, at a site will lead to biased estimates of site occupancy, colonization, and ...
D. MacKenzie, J. Nichols, J. Hines, M. Knutson, A. Franklin   +4 more
semanticscholar   +1 more source

A Tsunami of Extinction

Scientific American, 2012
The author discusses extinctions that could occur in the 100 years following 2013, focusing on the impact of invasive species, diseases, and climate change on animal populations and providing recommendations that could avert extinctions. According to the author, coral reefs may disappear, poaching could result in the extinction of the Borneo rhino, and
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