Document Detail

Migratory orientation of sedge warblers (Acrocephalus schoenobaenus) in relation to eating and exploratory behaviour.
MedLine Citation:
PMID:  19635535     Owner:  NLM     Status:  MEDLINE    
Orientation tests performed with Emlen funnels show much variation. This scatter in responses can be partially explained by considering the birds' personalities. We studied a Passerine migrant, the Sedge Warbler (Acrocephalus schoenobaenus), on autumn passage at Kalimok Biological Station, Bulgaria. Birds caught in the morning were kept in cages with known and regularly controlled amounts of food. In the evening they were tested for orientation, the next morning they were observed for 3 min in an unfamiliar cage, then released. Birds that ate on the first day oriented in the expected, southward direction, non-eating birds were scattered. Eating behaviour was related to the exploration pattern on the next day. Eating birds moved and flew less, hopped, looked around and explored the cage more, and were quicker in eating a food item if present. Lean birds ate and explored more but also oriented better, contrary to expectations where fat reserves indicate readiness for migration. A hypothesis is discussed where fat, migration and personality may be linked. Personality aspects may influence the individuals' ability to cope with an experimental situation and influence the outcome of the tests, therefore its analysis can help in predicting the birds' performance in apparently unrelated experiments.
Chiara Marchetti; Pavel Zehtindjiev
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Publication Detail:
Type:  Journal Article     Date:  2009-07-25
Journal Detail:
Title:  Behavioural processes     Volume:  82     ISSN:  1872-8308     ISO Abbreviation:  Behav. Processes     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-10-26     Completed Date:  2009-12-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7703854     Medline TA:  Behav Processes     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  293-300     Citation Subset:  IM    
Vogeltrekstation Dutch Centre for Avian Migration and Demography, NIOO-KNAW, PO Box 40, NL-6666 ZG Heteren, The Netherlands.
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MeSH Terms
Adipose Tissue / physiology
Animal Migration / physiology*
Animals, Wild / physiology*
Behavior, Animal / physiology
Body Weight / physiology
Circadian Rhythm / physiology
Exploratory Behavior / physiology*
Feeding Behavior / physiology*
Orientation / physiology*
Passeriformes / physiology*
Principal Component Analysis
Regression Analysis
Spatial Behavior / physiology
Statistics, Nonparametric

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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