Abstract:
:The risk allocation hypothesis predicts that vigilance should be adjusted to the temporal variation in risk. We test this hypothesis in wild fallow deer exposed to short term (disturbance) and long term (presence of a fawn after parturition) changes in risk. We recorded the proportion, frequency and type of vigilance and size of used area before and after parturition, in GPS-collared wild female fallow deer. Vigilance was divided in two main groups: "non-grazing vigilance" and "grazing vigilance". The latter group was divided into "grazing vigilance while chewing" and a "grazing vigilance when chewing was interrupted". By recording external disturbance in form of passing cars, we were able to investigate if this altered the amount, and type of vigilance. We found that females increased the proportion and frequency of "grazing vigilance stop chewing" after parturition. The "grazing vigilance chewing" was unaffected, but "non-grazing vigilance" decreased. Disturbance increased the proportion "grazing vigilance stop chewing" to the same extent before and after parturition. We found a clear decrease in female home range size after parturition as a possible behavioural adjustment. The increase in "grazing vigilance stop chewing" after parturition is a rarely described but expected cost of reproduction.
journal_name
Behav Processesjournal_title
Behavioural processesauthors
Bergvall UA,Svensson L,Kjellander Pdoi
10.1016/j.beproc.2016.04.005subject
Has Abstractpub_date
2016-07-01 00:00:00pages
58-63eissn
0376-6357issn
1872-8308pii
S0376-6357(16)30083-3journal_volume
128pub_type
杂志文章abstract::In serial feature-negative (SFN) training to a target unconditioned stimulus (US), eight rats received two types of intermingled trials: (1) trials in which a tone was followed by the delivery of a single food pellet US, and (2) trials in which the delivery of a single food pellet US was followed by three additional f...
journal_title:Behavioural processes
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journal_title:Behavioural processes
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journal_title:Behavioural processes
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journal_title:Behavioural processes
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journal_title:Behavioural processes
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doi:10.1016/j.beproc.2005.01.009
更新日期:2005-06-30 00:00:00
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journal_title:Behavioural processes
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journal_title:Behavioural processes
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journal_title:Behavioural processes
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pub_type: 杂志文章
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journal_title:Behavioural processes
pub_type: 杂志文章
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journal_title:Behavioural processes
pub_type: 杂志文章
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journal_title:Behavioural processes
pub_type: 杂志文章
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abstract::Dog cognition research tends to rely on behavioural response, which can be confounded by obedience or motivation, as the primary means of indexing dog cognitive abilities. A physiological method of measuring dog cognitive processing would be instructive and could complement behavioural response. Electroencephalogram (...
journal_title:Behavioural processes
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