Document Detail


Prey field switching based on preferential behaviour can induce Levy flights.
MedLine Citation:
PMID:  23054951     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Using the foraging movements of an insectivorous bat, Myotis mystacinus, we describe temporal switching of foraging behaviour in response to resource availability. These observations conform to predictions of optimized search under the Lévy flight paradigm. However, we suggest that this occurs as a result of a preference behaviour and knowledge of resource distribution. Preferential behaviour and knowledge of a familiar area generate distinct movement patterns as resource availability changes on short temporal scales. The behavioural response of predators to changes in prey fields can elicit different functional responses, which are considered to be central in the development of stable predator-prey communities. Recognizing how the foraging movements of an animal relate to environmental conditions also elucidates the evolution of optimized search and the prevalence of discrete strategies in natural systems. Applying techniques that use changes in the frequency distribution of movements facilitates exploration of the processes that underpin behavioural changes.
Authors:
Mathieu G Lundy; Alan Harrison; Daniel J Buckley; Emma S Boston; David D Scott; Emma C Teeling; W Ian Montgomery; Jonathan D R Houghton
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-10
Journal Detail:
Title:  Journal of the Royal Society, Interface / the Royal Society     Volume:  -     ISSN:  1742-5662     ISO Abbreviation:  J R Soc Interface     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101217269     Medline TA:  J R Soc Interface     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Centre for Irish Bat Research, Queen's University Belfast and University College Dublin, , Dublin, Ireland.
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