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Extinction memory in the crab Chasmagnathus: recovery protocols and effects of multi-trial extinction training
(Springer-Verlag, 2009-10)
A decline in the frequency or intensity of a conditioned behavior following the withdrawal of the reinforcement is called experimental extinction. However, the experimental manipulation necessary to trigger memory ...
Spontaneous recovery from extinction in the infant rat
(Elsevier Science, 2014-11)
Within the Pavlovian conditioning framework, extinction is a procedure in which, after conditioning, the conditioned stimulus (CS) is repeatedly presented without the unconditioned stimulus (US). During this procedure the ...
Functional extinction of birds drives rapid evolutionary changes in seed size
(2013-05-31)
Local extinctions have cascading effects on ecosystem functions, yet little is known about the potential for the rapid evolutionary change of species in human-modified scenarios. We show that the functional extinction of ...
Open field exposure facilitates consummatory extinction
(Lippincott Williams, 2016-12)
During extinction the organism learns that a conditioned stimulus or a conditioned response is no longer associated with an unconditioned stimulus, and as a consequence a decrement in the response is presented. The exposure ...
On the roles of hunting and habitat size on the extinction of megafauna
(Pergamon-Elsevier Science Ltd, 2017-02)
We study a mechanistic mathematical model of extinction and coexistence in a generic hunter-prey ecosystem. The model represents typical scenarios of human invasion and environmental change, characteristic of the late ...
Stimulus specificity in the acquisition and extinction of conditioned taste aversion
(Sociedad de Biología de Chile, 2007)
Modes and Frequencies of Colonization and its Relation to Extinctions, Habitat and Seasonality in the Social Spider Anelosimus Eximius in the Amazon (Araneidae: Theridiidae)
(1993-01-01)
Numbers of colonizations and extinctions of incipient colonies of the social spider Anelosimus eximius were greater at the edges of Amazonian forest than in continuous forest. The frequency of colony foundations by sociotomy, ...
Cladistics and mass extinctions: the example of conulariids (Scyphozoa, Cnidaria) and the End Ordovician Extinction Event
(Oxford, 2014)
The End Ordovician Extinction Event (EOEE) had little impact on supra-specific diversity and disparity within the order Conulariida (Scyphozoa, Cnidaria). With two possible exceptions (Exoconularia and Glyptoconularia), ...